Prof. Edwin Chi-Yan TSO

Education
BEng(Hons), MPhil, PhD, CEng, MHKIE, MIMechE, MASME, RPE
Staff title
Associate Professor

Prof. Tso received his Bachelor’s degree in Mechanical Engineering (First class), MPhil degree in Environmental Engineering and PhD degree in Mechanical Engineering from The Hong Kong University of Science and Technology (HKUST) in 2010, 2012 and 2015, respectively. He was awarded the Fulbright – Research Grant Council (RGC) Hong Kong Research Fellowship in 2014, and studied at the University of California, Berkeley (UC Berkeley) in 2015. After he came back from the UC Berkeley, he was a Research Associate at the Department of Mechanical and Aerospace Engineering (MAE), HKUST from 2015-2016, and promoted to the rank of Research Assistant Professor (2016-2018) before he joined CityU in Sep of 2018 as an Assistant Professor. He was also a Junior Fellow at the HKUST Jockey Club Institute for Advanced Study from 2016-2018 when he was at HKUST. Prof. Tso’s research interest covers thermofluid, heat transfer, energy and built environment, and energy efficient building technology, particularly, in the fields of adsorption technology, thermal diodes/switches, nanofluids/hybrid nanofluids, thermochromic smart windows and passive radiative cooling using numerical simulations as well as advanced experimental techniques. Prof. Tso is also active in entrepreneurship and technology transfer, and has been involved in setting up a start-up in 2012.

Prof. TSO focuses on understanding the fundamentals of heat transfer, energy conversion and engineered material science with the target of integrating theory and experiments to create innovative solutions to enhance thermal management, built environment, space cooling and refrigeration, micro-droplet manipulation and energy-efficient building technologies, making a great and global impact by addressing the biggest needs and issues in our world.

Material Energy Applications

Other Information

Research Interests

Adsorption Cooling/Dehumidification Systems; Passive Radiative Cooling; Thermochromic Smart Windows; Transparent Wood; Thermal Rectification; Solar Energy and Water Harvesting; Nanofluids/Hybrid Nanofluids Heat Transfer; Thermal Management for High Performance Systems.

Video

Passive Radiative Cooling

Local and International Awards

  • Gold Award with US$ 1 Million Cash Sward, TERA-Award Smart Energy Innovation Competition (2023)
  • CityU Outstanding Research Award 2022 for Junior Faculty (2022)
  • The top 2% of the world’s most highly cited scientists by Stanford University in 2021 (2022)
  • ASME Outstanding Paper Award, ASME 16th International Conference on Energy Sustainability, Philadelphia, PA, USA, 11 – 13 July. (2022)
  • 第7屆中國國際”互聯網+”大學生創新創業大賽 優秀創新創業導師 (2022)
  • Start-up Award Winner, Idea Stage, Climate Action Recognition Scheme, 2021-22. (2022)
  • Inventions Geneva Evaluation Days (IGED), Special Edition 2022. Invention Name: An Intelligent and Thermal-responsive Window for Indoor Thermal Management and Energy-saving in Buildings, Gold Medal (金獎) (2022)
  • The HKIE Best Transaction Paper Prize with Prof. Michael Leung and Prof. Wei Wu (2021)
  • 2021 International Invention Innovation Competition in Canada (iCAN 2021). Invention Name: An Intelligent and Thermally-responsive Window (ITRW) for Indoor Thermal Management and Energy-saving in Buildings. Gold MedalCanadian Special AwardBest Invention Video Award(2021)
  • HKIE Environmental Division, Champion, Environmental Paper Award (2021)
  • Start-up Award Winner, Idea Stage, Climate Action Recognition Scheme, 2020-21. (2021)
  • Inventions Geneva Evaluation Days (IGED), Special Edition 2021. GCJ MedalGold with Congratulations of the Jury(評審團特別嘉許金獎). (2021)
  • Hanson I&T Outstanding Awards & Best Innovation Award, Energy Saving Championship Scheme, Electrical and Mechanical Services Department (EMSD), HKSAR (2019)
  • The HKIE Best Transactions Paper Prize with Prof. Christopher Chao, Mr. X.J. Wang, and Mr. B. Traipattanakul (2018)
  • The Best Paper Award, 4thInternational Conference on Building Energy and Environment (COBEE 2018), Melbourne, Australia (2018)
  • PhD Research Excellence Award, School of Engineering, HKUST (2016)
  • Fulbright – Research Grant Council (RGC) Hong Kong Research Scholar Award (2015)
  • Sir Edward Youde Memorial Fellowship for Postgraduate Study (2014)
  • JEC Outstanding Engineering Project Award, Jardine Engineering Co., 2ndrunner up (2013)
  • Research Paper Award (Third Prize), Asia Pacific Economic Cooperation (APEC) Conference on Low Carbon Town and Physical Energy Storage, Changsha, China (2013)
  • HKUST One Million Dollar Entrepreneurship Competition, 1strunner up, HK$150,000 (2012)
  • Hong Kong PhD Fellowship Award (2012)
  • Ove Arup Research Prize Award (2012)

RGC & ITF Research Projects

Funding Source Role Project Title Period
General Research Fund (GRF)
11200022
Principal Investigator Chameleon-inspired Self-adaptive Daytime Passive Radiative Coolers with Cooling Power Modulation Ability for Building Applications 1/Jan/2023 – 31/Dec/2025
(On-going)
ITF – Public Sector Trail Scheme
(ITT/024/22GP)
Project Coordinator Development of Daytime Passive Radiative Cooling Paint for Buildings 1/May/2023 – 30/Apr/2024
(On-going)
ITSF
ITS/041/21 (Tier 3)
Project Coordinator Study and Development of a Novel Perovskite Thermochromic Smart Window with Electricity Generation Capability for Building Applications 1/Oct/2022 – 31/Mar/2024
(On-going)
General Research Fund
(GRF)
11200121
Principal Investigator Thermochromic Transparent Wood Composites for Highly Efficient Broadband Optical Management in Smart Window Applications 1/Jan/2022 – 31/Dec/2024
(On-going)
ITSF
ITS/107/20 (Tier 3)
Project Coordinator Study and Development of a Novel and Smart Textile for Personal Thermal Management 1/July/2021 – 31/Dec/2022
(On-going)
CRF
C1105-20G
PI: Prof. Carol Lin
(8730057)
Co-Investigator Reducing Transmission of Novel Coronavirus and Other Infectious Diseases using Food Waste-derived Medical Textiles via Electrospinning for Healthcare Apparel and Personal Protection Equipment 1/Jan/2021 – 31/Dec/2023
(On-going)
Environmental and Conservation Fund (ECF)
(9211200)
Principal Investigator Study and Development of an Advanced Solid Desiccant Cooling System for Hong Kong Buildings 1/Sep/2020 – 31/Aug/2021
(Completed)
Early Career Scheme (ECS)
(21200819)
Principal Investigator Study of Hybrid-Nanofluids in Superhydrophilic Wick Structure for Heat Transfer Enhancement in an Adsorption Cooling System 1/Jan/2020 – 31/Dec/2022
(On-going)
Innovation and Technology Fund (ITF)
(9440205)
Project Coordinator Study and Development of a Novel Superhydrophilic-Nanostructured Composite Surface in Dehumidification Systems 1/Jun/2019 – 31/May/2021
(Completed)
General Research Fund (GRF)
(16200518)
Principal Investigator Anomalous Photon Transport induced Asymmetric Electromagnetic Transmission for use in Daytime Passive Radiative Cooling in a Humid Climate 1/Jan/2019 – 31/Dec/2021
(Completed)
General Research Fund (GRF)
(16202517)
Principal Investigator Electrostatic Charging of Coalescence-induced Jumping Droplets and its Application in a Nanofluid based Phase Change Thermal Diode 1/July/2017 – 30/June/2020
(Completed)
Collaborative Research Fund (CRF)
(C6022-16G)
Co-Coordinator Study of Cooling Effect by Surface Treatment and its Application to Smart Green Buildings 30/June/2017 – 29/June/2020
(Completed)

Major Industrial, Government Contract Research and Consulting Projects

Funding Source Role Project Period
Lee Hysan Foundation Project Coordinator iPaint Application at Subdivided Flats and Metal Houses in Sham Shui Po Project

1/Apr/2023 – 31/Mar/2024
(On-going)

Hospital Authority & Electrical and Mechanical Services Department, HKSAR 10826

Project Coordinator Review on Operating Performance of Oil-free Chillers at Princess Margaret Hospital

1/Mar/2023 – 31/Dec/2023
(On-going)

Electrical and Mechanical Services Department, HKSAR
Project code: 10691

Project Coordinator Study on Performance of Radiative Cooling Coating

2/Aug/2021 – 31/Dec/2022
(Completed)

Drainage Services Department/Sewerage Projects Division
Project code: 10662

Project Coordinator

Energy-saving Study of a Novel Hybrid Ventilation System and Ventilation Optimization by Artificial Intelligence in Cavern

1/March/2021 – 31/May/2022
(On-going)

Electrical and Mechanical Services Department, HKSAR Project Coordinator Energy-saving Evaluation of the Daytime Passive Radiative Cooling Paint on the Rooftop of an Office in Tung Chung

1/June/2021 – 31/Dec/2022
(On-going)

Electrical and Mechanical Services Department, HKSAR

Co-Investigator Consultancy Services for Energy Saving Study for the Third Batch of Chiller Replacement Project at Hospital Authority's Venues

1/June/2021 – 31/May/2022
(Completed)

Civil Engineering and Development Department, HKSAR
Project code: 9360145

Project Coordinator Passive Radiative Cooling Paint on the Rooftop of an Office for Energy-saving Evaluation and Demonstration

2/Nov/2020 – 1/Nov/2021
(Completed)

Electrical and Mechanical Services Department, HKSAR
Project code: 10636

Project Coordinator Study of Performance of Plate-tube Chiller

28/Sep/2020 – 31/Mar/2022
(On-going)

Electrical and Mechanical Services Department, HKSAR

Co-Investigator

Consultancy Services for Chiller Plant Optimization by Artificial Intelligence and Energy Saving for the Second Batch Chiller Replacement Projects at Hospital Authority’s Venues

1/July/2019 – 31/Dec/2020
(Completed)

Drainage Services Department/Sewerage Projects Division Project code: 10514

Project Coordinator

Study of an Adsorption Cooling System adopting Superhydrophilic-nanostructured Composite Surface for use in Cavern

3/Dec/2018 – 2/Mar/2020
(Completed)

Drainage Services Department, HKSAR
1718212-0

Project Coordinator

Deployment of Computer Models to Review Operating Range of Sewage Pumping Systems at Wan Chai East and Central Preliminary Treatment Works

6/Jun/2018 – 2/Jan/2019
(Completed)

Drainage Services Department/Sewerage Projects Division, HKSAR
1718127-0

Co-Investigator

Feasibility Study on Demand Control Ventilation System in Cavern

1/Jan/2018 – 31/May/2019
(Completed)

CityU Internal Funding as PM and PI

Funding Source Role Project Title Period

ARG - CityU Applied Research Grant (9667231)

Principal Investigator

Study and Development of Sub-ambient Daytime Passive Radiative Cooling Paint for Buildings

1/Apr/2021–30/Sep/2022
(On-going)

Journal Publications

2023

  • A.Q. Pan, K.X. Lin, S.R. Chen, C.Y. Tso*Asymmetric Transmittivity of Optical Devices and Comparisons with Electronic and Thermal Diodes, iScience, (In Press).
  • W. Shang, W. Liu, W. Wang, N.K. Khanzada, J. Guo, M. Li, X. Li, J.Y. Lao, S.Y. Jeong, C.Y. Tso, F. Sun, A.K. An, 2023. Facile Synthesis of Micro-eggette Patterned Nanofiltration Membrane with Effective Antifouling and Rejection Performance, Desalination 555 116524.
  • S.X. Bai, Y.M. Tian, A.Q. Pan, Y.J. Zeng, S.R. Chen, T.C. Ho, J. Shang, C.Y. Tso*, 2023. Adsorption-based Atmospheric Water Harvesting by Passive Radiative Condensers for Continuous Decentralized Water Production, Applied Thermal Engineering225 120163.
  • M.Y. Wong, Y.H. Zhu, T.C. Ho, A.Q. Pan, C.Y. Tso*, 2023. Polypyrrole-Reduced Graphene Oxide Coated Delignified Wood for Highly Efficient Solar Interfacial Steam Generation, Applied Thermal Engineering219 119686.
  • Y.D. He, S. LiucC.Y. Tso, 2023. A Novel Solar-based Human-centered Framework to evaluate Comfort-Energy Performance of Thermochromic Smart Windows with Advanced Optical Regulation, Energy and Buildings278 112638.
  • Johnny S.C. Lo, W. Daoud, Y. Tso, H.H. Lee, I. Firdous, B.J. Deka, 2022. Optimization of Polylactic acid-based Medical Textiles via Electrospinning for Healthcare Apparel and Personal Protective Equipment, Sustainable Chemistry and Pharmacy, 30 100891.
  • S.R. Chen, A.Q. Pan, Y.H. Zhu, T.C. Ho, H.H. Lee, Y.J. Zeng, C.L. Wu, H.H. Qiu, C.Y. Tso*, 2023. A Novel Composite Adsorbent Coated Superhydrophilic-Nanostructured Heterogeneous Surface for Condensation Heat Transfer Enhancement, International Journal of Thermal Sciences, 184 107978.

2022

  • Y.H. Chan, Y. Zhang, T. Tennakoon, S.C. Fu, K.C. Chan, C.Y. Tso, K.M. Yu, M.P. Wan, B.L. Huang, S.H. Yao, H.H. Qiu, C.Y. Chao, 2022. Potential Passive Cooling Methods based on Radiation Controls in Buildings, Energy Conversion and Management 272 116342.
  • K.X. Lin, Y.W. Du, S.R. Chen, L.C. Chao, H.H. Lee, T.C. Ho, Y.H. Zhu, Y.J. Zeng, A.Q. Pan, C.Y. Tso*, 2022. Nanoparticle-polymer Hybrid Dual-layer Coating with Broadband Solar Reflection for High-performance Daytime Passive Radiative Cooling, Energy and Buildings, 276 112507.
  • Y.M. Wong, C.Y. Tso, S.C Fu, C.Y. Chao, 2022. Maxwell-Garnett Permittivity Optimized Micro-porous PVDF/PMMA Blend for Near Unity Thermal Emission through the Atmospheric Window, Solar Energy Materials and Solar Cells 248 112003.
  • F.R. Siddiqui, C.Y. Tso, S.C. Fu, H.H. Qiu, C.Y. Chao, Copper-alumina Hybrid Nanofluid Droplet Phase Change Dynamics over Heated Plain Copper and Porous Residue Surfaces, International Journal of Thermal Sciences (In Press).
  • Y. Shen, T. Luo, Y. Zhang, Y. Tso, N. Zhang, J. Xie, J. Liu, P. Xue, Regional Applicability of Thermochromic Windows based on Dynamic Radiation Spectrum, Renewable Energy (In Press).
  • M.I. Iqbal, K.X. Lin, F.X. Sun, S. Chen, A.Q. Pan, H.H Lee, C.W. Kan, Carol S.K. Lin, C.Y. Tso*, 2022. Radiative Cooling Nano-Fabric for Personal Thermal Management, ACS Applied Materials & Interfaces 14 23577-23587.
  • F.R. Siddiqui, C.Y. Tso, H.H. Qiu, C.Y. Chao, S.C. Fu, 2022. Hybrid Nanofluid Spray Cooling Performance and its Residue Surface Effects: Toward Thermal Management of High Heat Flux Devices, Applied Thermal Engineering 211 118454.
  • C. T. Wang, J. C. Xu, K. C. Chan, H. H. Lee, C.Y. Tso, Carol S. K. Lin, Christopher Y. H. Chao, and Sau Chung Fu, 2022. Infection Control Measures for Public Transportation Derived from the Flow Dynamics of Obstructed Cough Jet. Journal of Aerosol Science, 163 105995. (Featured as Cover Image).
    aerosol science
  • Y. Zhu, T.C. Ho, H.H. Lee, M.K.H. Leung and C.Y. Tso, 2022. Jumping Droplets on Nanostructured Biphilic Surfaces: Effects of Surface Structure, Surface Orientations, and Air Pressure, Cell Reports Physical Science, 3 100849.
  • S Liu, Y. Li, Y Wang, K.M. Yu, B.L. Huang and C.Y. Tso, 2022. Near-Infrared-Activated Thermochromic Perovskite Smart Windows, Advanced Science, 2106090. (Featured as Inside Front Cover).
    advanced science
  • Y. Du, S. Liu, Z. Zhou, H.H. Lee, T.C. Ho, S.P. Feng and C.Y. Tso, 2022. Study on the Halide Effect of MA4PbX6·2H2O Halide Hybrid Perovskites – from Thermochromic Properties to Practical Deployment for Smart Windows, Materials Today Physics, 100624.
  • C. Lin, Y. Li, C. Chi, Y.S. Kwon, C.Y. Tso, C.Y. Chao and B.L. Huang, 2022. A Solution-processed Inorganic Emitter with High Spectral Selectivity for Efficient Sub-ambient Radiative Cooling in Hot Humid Climates, Advanced Materials, 2109350.

2021

  • M.Y. Wong, Y.H. Zhu, Y. Zeng, H.C. Ho, Y. Yang, H.H. Qiu and C.Y. Tso, 2021. Thermal Rectification Enhancement of Coalescence – Jumping Phase Transition Thermal Diodes using Cu-Al2O3 Hybrid Nanofluids, Advanced Engineering Materials, 2100958 (Featured as Inside Front Cover).
    Inside Front Cover
  • K.X. Lin, L.C. Chao, H.H. Lee, R. Xin, S. Liu, T.C. Ho, B.L. Huang, K.M. Yu and C.Y. Tso, 2021. Potential Building Energy Savings by Passive Strategies combining Daytime Radiative Coolers and Thermochromic Smart Windows, Case Studies in Thermal Engineering28 101517.
  • Y.M. Wong, C.Y. Tso and C.Y. Chao, 2021. Thermo-radiative Energy Conversion Efficiency of a Passive Radiative Fluid Cooling System, Renewable Energy 180 700-711.
  • Y.Zhang, T. Tennakoon, Y.H. Chan, K.C. Chan, S.C. Fu, C.Y. Tso, K.M. Yu, B. L. Huang, S.H. Yao, H.H. Qiu, C.Y. Chao, 2022. Energy Consumption Modelling of a Passive Hybrid System for Office Buildings in Different Climates, Energy239 121914.
  • K.X. Lin, L.C. Chao, T.C. Ho, C.J. Lin, S.R. Chen, Y.W. Du, B.L. Huang and C.Y. Tso, 2021. A Flexible and Scalable Solution for Daytime Passive Radiative Cooling Using Polymer Sheets, Energy and Buildings 252 111400.
  • F.R. Siddiqui, C.Y. Tso, S.C. Fu, H.H. Qiu, C.Y. Chao, 2021. Droplet Evaporation and Boiling for Different Mixing Ratios of the Silver-graphene Hybrid Nanofluid over heated Surfaces, International Journal of Heat and Mass Transfer180 121786
  • Z.H. Qin, J.H. Mou, C.Y.H. Chao, S.S. Chopra, W. Daoud, S.Y. Leu, Z. Ning, C.Y. Tso, C.K. Chan, S. Tang, Z. Hathi, M.A. Haque, X. Wang and C.S.K. Lin, 2021. Biotechnology of Plastic Waste Degradation, Recycling, and Valorization: Current Advances and Future Perspectives, ChemSusChem 14 1-13 (Featured as Front Cover).
    ChemSusChem
  • S. Liu, C.Y. Tso, Y.W. Du, L.C. Chao, H.H. Lee, T.C. Ho and M.K.H. Leung, 2021. Bioinspired Flexible Thermochromic Transparent Hydrogel Wood with Advanced Optical Regulation Abilities and Robust Mechanical Properties for Smart Windows, Applied Energy 297 117207.
  • Y.W. Du, S. Chen, L.C. Chao, K. Lin, H.H. Lee, T.C. Ho, M.K.H. Leung, C.Y. Tso, An Energy-free and Low-cost Daytime Passive Radiative Cooling Paint for Energy-Saving in Buildings and Decarbonization, HKIE Environmental Division, (Champion, Environmental Paper Award).
  • S. Liu, C.Y. Tso, H.H. Lee, K.M. Yu, S.P. Feng and B.L. Huang, Self-Densified Optically Transparent VO2 Thermochromic Wood Film for Smart Windows, ACS Applied Materials & Interfaces13 22495-22504.
  • Y.M. Wong, C.Y. Tso and C.Y. Chao, Corrected Radiative Cooling Power measured by Equivalent Dissipative Thermal Reservoir Method, International Journal of Heat and Mass Transfer174 121341.
  • S. Liu, Y.W. Du, C.Y. Tso, H.H. Lee, R. Cheng, S.P. Feng and K.M. Yu, 2021. Organic Hybrid Perovskite (MAPbI3-xClx) for Thermochromic Smart Window with Strong Optical Regulation Ability, Low Transition Temperature and Narrow Hysteresis Width, Advanced Functional Materials, 2010426 (Featured as Inside Front Cover).
    Advanced Functional Materials
  • W. Ma, Y. Li, C.Y.H. Chao, C.Y. Tso, B.L. Huang, W. Li and S.H. Yao, 2021. Solar-Assisted Icephobicity Down to -60 °C with Superhydrophobic Selective Surfaces, Cell Reports Physical Science, 2(3) 100384.
  • Y. Zhu, C.Y. Tso, T.C. Ho, M.K.H. Leung and S. Yao, 2021. Coalescence-induced Jumping Droplets on Nanostructured Biphilic Surfaces with Electrification Effects, ACS Applied Materials & Interfaces, 13(9) 11470–11479.
  • Y. Li, C.J. Lin, Z.X. Wu, Z.Y. Chen, C. Chi, F. Cao, D.Q. Mei, H. Yan, C.Y. Tso, C.Y.H. Chao and B.L. Huang, 2021. Solution-Processed All-Ceramic Plasmonic Metamaterials for Efficient Solar-Thermal Conversion over 100-727 ºC, Advanced Materials, 33(1) 2005074.
  • F.R. Siddiqui, C.Y. Tso, S.C. Fu, H.H. Qiu and C.Y. H. Chao, 2021. Droplet Evaporation of Cu-Al2O3 Hybrid Nanofluid Over Residue and Copper Surfaces: Towards Developing a New Analytical Model, ASME Journal of Heat Transfer, 143 021604-1.
  • M.Y. Wong, C.Y. Tso, T.C. Ho and H.H. Lee, 2021. A Review of State of the Art Thermal Diodes and their Potential Applications, International Journal of Heat and Mass Transfer, 164 120607.

2020

  • S. Bai, T.C. Ho, J. Ha, A.K An, and C.Y. Tso, 2020. Study of the Salinity Effects on the Cooling and Desalination Performance of an Adsorption Cooling cum Desalination System with a Novel Composite Adsorbent, Applied Thermal Engineering, 181 115879.
  • Y. Zhu, C.Y. Tso, T.C. Ho, M.K.H. Leung, S. Yao and H.H. Qiu, 2020. Heat Transfer Enhancement on Tube Surfaces with Biphilic Nanomorphology, Applied Thermal Engineering, 180 115778.
  • S. Liu, C.Y. Tso, Y. Zhang, H.H. Lee, K.M. Yu, and C.Y.H. Chao, 2020. Bioinspired TiO2 Nanocone Antireflection Layer for the Optical Performance Improvement of VOThermochromic Smart Windows, Scientific Report, 10(1) 1-14.
  • M. Kong, K. Egbo, C.P. Liu, M.K. Hossain, C.Y. Tso, C.Y.H. Chao and K.M. Yu, 2020. Rapid Thermal Annealing assisted Facile Solution Method for Tungsten-doped Vanadium Dioxide Thin Films on Glass Substrate. Journal of Alloys and Compounds833 155053.
  • F.R. Siddiqui, C.Y. Tso, S.C. Fu, H.H. Qiu and C.Y. H. Chao, 2020. Evaporation and Wetting Behavior of Silver-graphene Hybrid Nanofluid Droplet on its Porous Residue Surface for Various Mixing Ratios. International Journal of Heat and Mass Transfer, 153 119618.
  • S.Y. Jeong, C.Y. Tso, Y.M. Wong, C.Y.H. Chao, and B.L. Huang, 2020. Daytime Passive Radiative Cooling by Ultra Emissive Bio-inspired Polymeric Surface. Solar Energy Materials and Solar Cells, 206 110296.
  • S.Y. Jeong, C.Y. Tso, J.Y. Ha, Y.M. Wong, B.L. Huang, C.Y.H. Chao and H.H. Qiu, 2020. Field Investigation of a Photonic Multi-layered TiO2 Passive Radiative Cooler in Sub-Tropical Climate. Renewable Energy, 146 44-55.

2019

  • Y. Zhang, C.Y. Tso, J.S. Iñigo, S. Liu, H. Miyazaki, C.Y.H. Chao and K.M. Yu, 2019. Perovskite Thermochromic Smart Window: Advanced Optical Properties and Low Transition Temperature. Applied Energy, 254 113690.
  • Y. Li, D. Zhou, C. Lin, D. Li, C. Chi, H. Huang, S. Yang, C.Y. Tso, C.Y.H. Chao and B.L. Huang, 2019. Scalable All-ceramic Nanofilms as Highly Efficient and Thermally Stable Selective Solar Absorbers. Nano Energy 64 103947.
  • K.C. Chan, C.Y. Tso, A. Hussain and C.Y.H. Chao, 2019. A Theoretical Model for the Effective Thermal Conductivity of Graphene Coated Metal Foams. Applied Thermal Engineering, 161 114112.
  • W.W. Che, C.Y. Tso, L. Sun, D. Ip, H. Lee, C.Y.H. Chao and A.K.H. Lau, 2019. Energy Consumption, Indoor Thermal Comfort and Air Quality in a Commercial Office with Retrofitted Heat, Ventilation and Air Conditioning (HVAC) System. Energy and Building, 201 202-215. 
  • S.Y. Jeong, C.Y. Tso, J.Y. Ha, Y.M. Wong, B.L. Huang, C.Y.H. Chao and H.H. Qiu, 2020. Field Investigation of a Photonic Multi-layered TiO2 Passive Radiative Cooler in Sub-Tropical Climate. Renewable Energy, 146 44-55.  
  • M.Y. Wong, B. Traipattanakul, C.Y. Tso, C.Y.H. Chao and H.H. Qiu, 2019. Experimental and Theoretical Study of a Water-Vapor Chamber Thermal Diode. International Journal of Heat and Mass Transfer, 138 173-183.
  • B. Traipattanakul, C.Y. Tso and C.Y.H. Chao, 2019. A Phase-change Thermal Diode using Electrostatic-induced Coalescing-jumping Droplets. International Journal of Heat and Mass Transfer, 135 294-304.
  • F.R. Siddiqui, C.Y. Tso, K.C. Chan, S.C. Fu and C.Y. H. Chao, 2019. On Trade-off for Dispersion Stability and Thermal Transport of Cu-Al2O3 Hybrid Nanofluid for Various Mixing Ratios. International Journal of Heat and Mass Transfer, 132 1200-1216.
  • B. Traipattanakul, C.Y. Tso, and C.Y.H. Chao, 2019. Electrostatic-induced Coalescing-Jumping Droplets on Nanostructured Superhydrophobic Surfaces. International Journal of Heat and Mass Transfer, 128 550-561.

2018

  • S.Y. Jeong, C. Y. Tso, M. Zouagui, Y.M. Wong and C.Y.H. Chao, 2018. A Numerical Study of Daytime Passive Radiative Coolers for Space Cooling in Buildings. Building Simulation, 11(5) 1011-1028.
  • Y.M. Wong, C. Y. Tso, C.Y.H. Chao, B.L. Huang and M.P. Wan, 2018. Ultra-broadband Asymmetric Transmission Metallic Gratings for Subtropical Passive Daytime Radiative Cooling. Solar Energy Materials and Solar Cells,186 330-339.
  • L.Q. Zhu, C.Y. Tso, K.C. Chan, C.L. Wu, Christopher Y.H. Chao, J. Chen, W. He, and S.W. Luo, 2018. Performance Investigation of Nanostructured Composite Surfaces for use in Adsorption Cooling Systems with a Mass Recovery Cycle. Science and Technology for the Built Environment (formerly HVAC&R Research Journal), 24 1084-1103.
  • M.J. Song, C.Y. Tso, C.Y.H. Chao, and C.L. Wu, 2018. Techno-economic Analysis on Frosting/defrosting Operations for an Air Source Heat Pump Unit with an Optimized Multi-Circuit Outdoor Coil. Energy and Building, 166 165-177.
  • L.Q. Zhu, C.Y. Tso, K.C. Chan, C.L. Wu, C.Y.H. Chao, J. Chen, W. He, and S.W. Luo, 2018. Experimental investigation on Composite Adsorbent-Water Pair for a Solar-Powered Adsorption Cooling System. Applied Thermal Engineering, 131 649-659.
  • K.C. Chan, C.Y. Tso, C.L. Wu and C.Y.H. Chao, 2018. Enhancing the Performance of a Zeolite 13X/CaCl2 – Water Adsorption Cooling System by improving Adsorber Design and Operation Sequence. Energy and Building, 158 1368-1378.
  • A. Hussain, I.H. Abidi, C.Y. Tso, K.C. Chan, Z.T. Luo and C.Y.H. Chao, 2018. Thermal Management of Lithium Ion Batteries using Graphene Coated Nickel foam saturated with Phase Change Materials. International Journal of Thermal Sciences, 124 23-35.

2017

  • B. Traipattanakul, C.Y. Tso, and C.Y.H. Chao, 2017. Study of Jumping Water Droplets on Superhydrophobic Surfaces with Electric Fields. International Journal of Heat and Mass Transfer, 115 672-681.
  • X.J. Wang, C.Y. Tso, B. Traipattanakul, C.Y.H. Chao, 2017. Development of a Phase Change Material (PCM) based Thermal Switch. The Hong Kong Institution of Engineers (HKIE) Transactions, Special Issue on Energy Engineering with Applications in Smart Green Buildings, 24(2) 107-112.(The HKIE Best Transaction Paper Prize)
  • L.Q. Zhu, C.Y. Tso, W. He, P. Li, C.L. Wu, C.Y.H Chao, 2017. A Field Investigation of a Solar-Powered Adsorption Cooling System under Guangzhou’s Climate with Various Numbers of Heat Exchangers in Adsorbers. Science and Technology for the Built Environment (formerly HVAC&R Research Journal), 23(8) 1282-1292.
  • C.Y. Tso, K.C. Chan and C.Y.H. Chao, 2017. A Field Investigation of Passive Radiative Cooling under Hong Kong’s Climate. Renewable Energy, 106 52-61.
  • H.H. Lee, S.C. Fu, C.Y. Tso and C.Y.H. Chao, 2017. Study of Residue Patterns of Aqueous Nanofluid Droplets with Different Particle Sizes and Concentrations on Different Substrates. International Journal of Heat and Mass Transfer, 105 230-236.
  • S.C. Fu, C.Y. Tso, Y.S. Fong and C.Y.H. Chao, 2017. Evaporation of Al2O3-Water Nanofluids in an Externally Micro-grooved Evaporator. Science and Technology for the Built Environment (formerly HVAC&R Research Journal), 23345-354.

2016

  • A. Hussain, C.Y. Tso and C.Y.H. Chao, 2016. Experimental Investigation of a Passive Thermal Management System for High-powered Lithium Ion Batteries using Nickel Foam-Paraffin Composite. Energy, 115 209-218.
  • C.Y. Tso and C.Y.H. Chao, 2016. Solid-State Thermal Diode with Shape Memory Alloys. International Journal of Heat and Mass Transfer, 93 605-611.

2015

  • C.Y. Tso, K.C. Chan, C.Y.H. Chao and C.L. Wu, 2015. Experimental Performance Analysis on an Adsorption Cooling System using Zeolite13X/CaCl2 adsorbent with Various Operation Sequences. International Journal of Heat and Mass Transfer, 85 343-355.
  • C.Y. Tso and C.Y.H. Chao, 2015. Study of Enthalpy of Evaporation, Saturated Vapor Pressure and Evaporation Rate of Aqueous Nanofluids. International Journal of Heat and Mass Transfer, 84 931-941.
  • K.C. Chan, C.Y. Tso, C.Y.H. Chao and C.L. Wu, 2015. Experiment verified Simulation Study of the Operating Sequences on the Performance of Adsorption Cooling System. Building Simulation, Tsinghua University Press. 8 255 – 269.

2014

  • C.Y. Tso, S.C. Fu and C.Y.H. Chao, 2014. A Semi-Analytical Model for the Thermal Conductivity of Nanofluids and Determination of the Nanolayer Thickness. International Journal of Heat and Mass Transfer, 70 202-214.
  • C.Y. Tso, S.C. Fu and C.Y.H. Chao, 2014. Modeling a Solar-Powered Double Bed Novel Composite Adsorbent (Silica Activated Carbon/CaCl2) - Water Adsorption Chiller. Building Simulation, Tsinghua University Press.7185-196.

2012

  • C.Y. Tso, C.Y.H. Chao and S.C. Fu, 2012. Performance Analysis of a Waste Heat Driven Activated Carbon based Composite Adsorbent – Water Adsorption Chiller using Simulation Model. International Journal of Heat and Mass Transfer, 55 7596-7610.
  • C.Y. Tso and C.Y.H. Chao, 2012. Activated Carbon, Silica-gel and Calcium Chloride Composite Adsorbents for Energy Efficient Solar Adsorption Cooling and Dehumidification Systems. International Journal of Refrigeration, 35 1626-1638.

Patents

  1. Y.W. Du, C.Y. Tso*, S. Liu, and T.C. Ho, Perovskite Thermochromic Transparent Wood and Its Fabrication Method, US Non-Provisional Patent and Chinese Patent, PWG/PA/1421/2/2023 (Filling).
  2. S. Liu and C.Y. Tso, A Durable Thermochromic Perovskite Smart Window, US Non-Provisional Patent and Chinese Patent, PWG/PA/1413/1/2023 (Filling).
  3. M.I. Iqbal, K.X. Lin, H.H. Lee, and C.Y. Tso*, Electrospun Radiative Cooling Textile, US Non-Provisional Patent, PWG/PA/1258/5/2022 (US) (Filing).
  4. K.X. Lin, S.R. Chen, T. Zhu, Y. Zhu, H.H. Lee, T.C. Ho and C.Y. Tso*, A High-performance Passive Radiative Cooling Ceramic, US Non-Provisional Patent, PWG/PA/1218/4/2022 (US) (Filing).
  5. S.R. Chen, Y.W. Du, K.X. Lin, Y.J. Zeng, L.C. Chao, Y.H. Zhu, H.H. Lee, T.C. Ho and C.Y. Tso, A Multi-layer Particle-embedded Passive Radiative Cooling Paint, Hong Kong Short-term Patent Application, App. NO.: 32021034661.7, 7 July 2021.
  6. S. Liu, C.Y. Tso, H.H. Lee, and T.C. Ho, Thermochromic Hydrogel Transparent Wood and Its Fabrication Method, US Provisional Patent, PWG/PA/908/10/2020, Application No.: 63/144,497. Filed on Feb 2 2021.
  7. S.R. Chen, C.Y. Tso, K.X. Lin, S.X. Bai, L.C. Chao, H.H. Lee and T.C. Ho, A Low-Cost High Performance Passive Radiative Cooling Paint, Hong Kong Short-term Patent Application, Ref. NO.: SF-HKS01056, 24 Dec 2020.
  8. C.Y. Tso, S.R. Chen, H.H. Lee and T.C. Ho, A New Hybrid Dehumidifier based on Superhydrophilic-nanostructured Composite Surface, US Provisional Patent, Priority NO. 63/039,536, 16 June 2020.
  9. C.Y. Tso and C.Y. Chao, Passive Thermal Diode, US Full Application, US Patent No. US10365049B2, 30 July, 2019. (Also, Chinese Full Patent No. ZL201680041425.4, Oct 11, 2019).
  10. C.Y. Tso, C.Y. Chao and G.N. Sze To, Activated Carbon/Silica-gel/CaCl2 Composite Adsorbent Material for Air-Conditioning Applications and a Method of Preparing the Same, US Full Application, US Patent No. 8962520B2, 24 Feb 2015. (Also Hong Kong Patent No. HK1176033A1, Dec 19, 2014, Chinese Full Patent No. CN102744036B, July 9, 2014).
  11. C.Y. Tso, C.Y. Chao, K.C. Chan, C.L. Wu, G.N. Sze-To and H.H. Qiu, A Novel Evaporator for Adsorption Cooling Applications, Chinese Utility Models, Patent No. ZL201320877468.X, 20 Aug 2014.
  12. C.Y. Tso, C.Y. Chao, K.C. Chan and C.L. Wu, A Spray Cooing Evaporator with Nanofluid as Adsorbate for Adsorption Cooling Applications, Chinese Utility Models, Patent No. ZL201320877484.9, 20 Aug 2014.

Media Coverage

  1. <<TERA Award 智慧能源创新大赛>>, Title: i2Cool摘得百万美元金奖 第二届TERA-Award「碳汭未来」智慧能源创新大赛颁奖典礼在香港隆重举行, 29 Mar 2023.
  2. <<香港商報網>>, Title:能源行業最高獎金得主出爐 港初創「無電製冷技術」奪TERA-Award百萬美元獎金, 29 Mar 2023.
  3. <<明報>>, Title: TERA-Award智慧能源創新大賽 港初創創冷科技以「無電製冷技術」奪金獎, 29 Mar 2023.
  4. <<香港經濟日報>>, Title:【香港初創】港初創奪TERA-Award智慧能源創新大賽金獎獲780萬獎金, 29 Mar 2023.
  5. <<am730>>, Title: 能源界「奧斯卡」TERA-Award大賽結果出爐 香港初創公司揚威國際奪冠, 29 Mar 2023.
  6. <<香港01-社會新聞>>, Title:初創公司研無電製冷獲獎金100萬美元 擬建廠房生產應用, 29 Mar 2023.
  7. <<新华社>>, Title: 第二届TERA-Award「碳汭未来」智慧能源创新大赛颁奖典礼在香港举行, 29 Mar 2023.
  8. <<36kr>>, Title: 第二届TERA-Award智慧能源创新大赛颁奖礼在香港举行, 29 Mar 2023.
  9. <<中国新闻周刊>>, Title: i2Cool摘得百万美元金奖 第二届TERA-Award「碳汭未来」智慧能源创新大赛颁奖典礼在香港隆重举行, 29 Mar 2023.
  10. <<世展网>>, Title: i2Cool摘得百万美元金奖 第二届TERA-Award「碳汭未来」智慧能源创新大赛颁奖典礼在香港隆重举行, 29 Mar 2023.
  11. <<米贰资本>>, Title: 米贰愉悦新闻-创冷科技斩获第二届TERA-Award智慧能源创新大赛百万美元大奖, 29 Mar 2023.
  12. <<智通财经>>, Title: 第二届TERA-Award智慧能源创新大赛结果出炉 香港初创公司凭“无电制冷技术”夺冠 独得100万美元奖金, 30 Mar 2023.
  13. <<東網-即時新聞>>, Title: 仿蟻毛反射陽光 研無電製冷技術 港初創企創新賽奪冠, 30 Mar 2023.
  14. <<香港虎報>>, Title: Cooling startup sets the pace, 30 Mar 2023.
    Cooling startup sets the pace
  15. Phoenix Media Inv - <<鳳凰秀>>; Interview Theme: Thermochromic Smart Windows for Energy Saving, broadcasted on December 26, 2022.
    Thermochromic Smart Windows
  16. ViuTV Interview - <<智富通>>, Host: Ada Chong; Interview Theme: Business Opportunities in Greater Bay Area, broadcasted on December 22, 2022.
    Business Opportunities in Greater Bay Area
  17. RTHK Interview - <<大氣候>>, Host: 胡世傑、鄭萃雯; Interview Theme: Electricity-free Cooling Technology for Carbon Neutrality, broadcasted on August 6, 2022.
  18. TVB Interview - <<大灣區解碼>>, Host: Toni Wong; Interview Theme: Innovation and Technology in Greater Bay Area, broadcasted on June 9, 2022.
    tvb_interview
  19. News: <<明報>>; Interviewed Topic: Thermochromic Smart Windows; Date: 11 April 2022.
    ming_po
  20. News: <<香港經濟日報>> & <<東網>>; Interviewed Research Topic: Thermochromic Hydrogel Smart Windows; Date: 5 Oct 2021.
    Thermochromic Hydrogel Smart Windows
  21. TVB Interview - Innovation GPS <<創科導航>>, Research Topic: Thermochromic Smart Windows, broadcasted on Sep 8, 2021.
    Thermochromic Smart Windows
  22. Phone Interview, RTHK, 香港電台普通話台,節目:《寰聽世界》,項目:「一種用於建築的零耗能、低成本及高效能被動輻射製冷技術」,25 May 2021.
  23. Dr. Tso was invited to join the Chief Executive’s Reception to congratulate the success of Hong Kong teams at the Grand Hall of Hong Kong Science Park on 17 May 2021. At the Reception, Dr. Tso explained his innovation on “An Energy-Free, Low-Cost and High Cooling Performance Passive Radiative Cooling Technology for Building Applications” to Ms. Carrie Lam, HKSAR Chief Executive, and other guests. CityU’s President, Prof. Way Kuo, and Vice President for Research and Technology, Prof. Michael Yang, congratulated the teams for their brilliant performance.
    HKSAR Chief Executive

  24. News: <<星島日報>>; <<AM730>>; <<頭條日報>>; <<香港商報>>; Inventions Geneva Evaluation Days (IGED), Special Edition 2021. Gold with Congratulations of the Jury (評審團特別嘉許金獎), Date: 25 Mar 2021.
    AM730
    星島日報
    香港商報

  25. TVB Interview - Innovation GPS <<創科導航>>, Research Topic: Daytime Passive Radiative Cooling Paint, broadcasted on March 17, 2021.
    TVB Innovation GPS 創科導航

  26. Video production project for promoting the HK PhD Fellowship Scheme (HKPFS) at HKUST, Date: 25 Jan 2021.
    HK PhD Fellowship Scheme HKPFS

  27. News: <<文匯報>>; <<星島日報>>; <<AM730>>; <<經濟一周>>; <<東網>>; <<Yahoo新聞>>; Interviewed Research Topic: Daytime Passive Radiative Cooling; Date: 2-3 Dec 2020.
    星島日報 AM730 Yahoo新聞
    文匯報

  28. News: Hong Kong Headline News 頭條日報, Topic: <<非常製冷塗層,慳能源零雪種>> Date: 24 Nov 2020.
    頭條日報 非常製冷塗層

  29. Hong Kong TVB 無綫財經資訊台 interview, <<港生活.港享受>> talking about energy and environmental related issues, together with Prof. Michael Leung, Prof. Wang Zuankai, and Dr. Square Fong. Date: 6 July 2019.
    港生活 港享受

  30. Officiating Guest, Graduation Ceremony, Po Leung Kuk Yao Ling Sun College, Tsuen Wan, NT, Hong Kong. Date: 24 May 2019.
  31. RTHK: 香港電台節目《日常8點半》, 空內空氣質素. Date: 10 Jan 2019
    日常8點半 空內空氣質素

  32. TV Advertisement: Hong Kong Science and Technology Parks, Topic: Green Life, Making things happen (Hong Kong Science Park Phase 3). Date: Feb 2013.
    Green Life
    Hong Kong Science and Technology Parks

  33. Radio: Commercial Radio Hong Kong 香港商業電台雷霆881, <<人生交叉盤>>, Invited by 陳永陸(陸叔), Topic: How to make our planet greener. Date: 22 Feb 2013.
  34. News: Hong Kong Headline News 頭條日報, Topic: Adsorption Cooling Systems, a new environmentally-friendly cooling system, no refrigerants, no compressors. Date: 23 Nov 2012, Page: P40.
    new environmentally-friendly cooling system
Staff Image
Edwin TSO
Contact Information
Office: YEUNG-G5705
Phone: +(852)-3442-4623
Fax: +(852)-3442-0688
Email: chiytso@cityu.edu.hk
Web: Energy, Materials and Built Environmental Laboratory

Time slots for consultation

Research Interests
  • Thermofluid
  • Energy and Built Environment
  • Heat Transfer
  • Energy Efficient Building Technology