Li JunmingProfessor

Tel: 8610-62771001

Email: lijm@tsinghua.edu.cn

Address: The Department of Thermal Engineering, Tsinghua University, Beijing 100084, China


Education background

Ph.D. –Refrigeration and Cryogenic Engineering, Department of Power Machinery, Xi’an Jiaotong University, Xi’an, China, 1990-1994. Dissertation Title: A new method for detecting flow patterns and heat transfer during annular and wavy flow condensation of refrigerant mixtures in tubes. Advisor: Professor Yezheng Wu.

M.S. –Heating, Ventilation, and Air-Conditioning (HVAC), Department of Thermal Engineering, Harbin Architecture and Civil Engineering University, Harbin, China, 1984-1987. Thesis Title: Experimental investigation on air cooling with spray water in porous media packed layers. Advisor: Professor Yajun Lu

B.S. – HVAC Engineering, Department of Thermal Engineering, Harbin Architecture and Civil Engineering University, Harbin, China, Thesis Title: Design of a boiler house for regional heating Advisor: Professor Shan Dong, 1978-1982.

Experience

Professor, Deputy Director of Institute of Engineering Thermophysics, Department of Thermal Engineering, Tsinghua University, Beijing, China, 2004 – present

Visiting Professor, School of the Built Environment, The University of Nottingham, Feb-Jul, 2007

Associate Professor, Vice Director of Institute of Engineering Thermophysics, Department of Thermal Engineering, Tsinghua University, Beijing, China, 2001 - 2004

Associate Professor, Department of Thermal Engineering, Tsinghua University, Beijing, China, 1996 - 2004

Post Doctoral Research, Department of Thermal Engineering, Tsinghua University, Beijing, China, 1994 - 1996

Lecturer, Department of Environmental Engineering, Northwestern Institute of Architectural

Engineering, Xi’an, China, 1987-1990

Graduate Assistant, Department of Environmental Engineering, Northwestern Institute of

Civil Engineering and Architectural, Xi’an, China, 1982-1984

Concurrent Academic

Member, the Chinese Association of Refrigeration (CAR), 2016-present

Member, the Academic Commission of the Chinese Association of Refrigeration (CAR),

2009-present

Member, the China Refrigeration and Air-conditioning Industry Association (CRAA), 2009-present

Member, the Technology Commission of the China Refrigeration and Air-conditioning Industry Association (CRAA), 2009-present

Member, State production safety expert group, 2014-present

Member, China Standardization Committee on Refrigeration, 2003-present

Director, The Terminology Chapter of the China Standardization Committee on Refrigeration, 2015-present

Areas of Research Interests/ Research Projects

Micro/mini scale fluid flow and heat transfer

Heat and mass transfer in energy systems

Energy saving and low carbon technology on air conditioning and refrigeration engineering

Research Status

Research Projects Completed

Heat and mass transfer during chemical accident,National Basic Research Program of China (973 Program),No. 2011CB706904, 2011-2015, (Principal investigator)

R & D in sustainable building energy systems and retrofitting, EU Marie Curie International Research Staff Exchange Scheme, No. R-D-SBES-R-269205, 2011-2015, (Co-Principal investigator)

Research and Development on High Efficiency Heat Pump Air Conditioner for Electrical Vehicle, Research Program with the Industry, Schools, Research Institutions Complement, Guangdong Province and Ministry of Education, No. 2011A090200018, 2011-2013, (Co-Principal investigator)

Dew Point Evaporative Cooling Air Conditioner, Research Program with the Industry, Schools, Research Institutions Complement, Guangdong Province and Ministry of Education, No. 2010A090200015, 2011-2012, (Co-Principal investigator)

High Efficiency Heat Pump Air Conditioner for Electrical Vehicle, Emerging Strategic Industries Program, Guangdong, China, 2011-2013, (Co-Principal investigator)

The microchannel heat exchangers for the commercial refrigerators, National Key Technology R&D Program of China, 2009-2010, (Co- investigator)

Key technology research on flue gas condensing heat exchangers with special anticrorrsion method for the natural gas boilers, The Natural Science Foundation of Beijing, China, Key program, 2008-2010, (Co- investigator)

The research of key technical problems to improve the energy efficiencies and energy recycling of oil-gas recycle condensing units, The Natural Science Foundation of Beijing, China, Key program, No. 20071001, 2007-2010, (Co-Principal investigator)

Key technology research on high efficiency building equipment, National Key Technology R&D Program of China, No.006BAJ01B03, 2007-2010, (Co-investigator)

Investigation on vapor-liquid non-equilibrium characteristics when refrigerant mixtures condensation inside microtubes, National Natural Science Foundation of China, No.50676045, 2007-2009, (Principal investigator)

The high efficiency heat pump with microchannel heat transfer enhancement, The National High Technology Research and Development Program of China (863 Program), No. 2006AA05Z207, 2006-2008, (Principal investigator)

Air conditioning system using CO2 as refrigerant, Research Project of Beijing Committee for Science & Technology, 2003-2006, (Co-investigator)

Thermal conduction mechanism of nano-suspensions, National Natural Science Foundation of China, No. 50276030, 2003-2005, (Principal investigator)

Convective heat transfer in microchannels and microporous structures with/without phase change, National Natural Science Foundation of China, Key program, No. 59995550-3, 1999-2004, (Co-principal investigator)

Heat pump air-conditioning unit for chilled-weather regions in China, Research Project of Beijing Committee for Science & Technology, 2001-2003, (Co- principal investigator)

Heat and mass transfer in porous media, National Natural Science Foundation of China, Key program, No. 59136062, 1992-1996, (Co-investigator)

A new method for predicting liquid-vapor two-phase flow patterns, National Natural Science Foundation of China, No. 59136062, 1994-1996, (Co-investigator)

Research Projects in Progress

Effect of symmetrical and asymmetrical cooling on condensation heat transfer of refrigerants inside microchannel arrays, National Natural Science Foundation of China, No. 51576106, 2016-2019, (Principal investigator)

Key Technologies for Enhancing Energy Efficiency of the Dew Point Air Cooler and its Manufacturing, International Cooperation Projects with UK, Ministry of Science and Technology of China, No. 2015DFG62060, 2015-2017, (Co-principal investigator)

Improvement of the heating performance of R290 heat pump air conditioner, Foreign Economic Cooperation Office, Ministry of Environmental Protection of China, 2014-2017, (Co-principal investigator)

Evaluation of the energy saving progress and energy efficiency effect of standards on air conditioner industry, Economic Cooperation Office, Ministry of Environmental Protection of China, 2015-2016, (Principal investigator)

Unified evaluation system for water heater energy efficiencies and policy promulgation, supported by the International Copper Association (China), 2013-2016, (Principal investigator)

National Natural Science Fund of China for Creative Research Groups, No.51321002, 2014-2016, 6,000,000 RMB (Co-investigator)

Honors And Awards

2004, Natural Science Prize of Ministry of Education, China (grade 2): Wall-Adjacent Layer Model for Flow and Convection Heat Transfer of Gas in Micro/mini Channels

2004, Beijing Science and Technology Prize(grade 2): A Small Air Heat Pump for the Cold Region in China

Academic Achievement

Li C, Li J*. Airside performances of finned eight-tube heat exchangers. Heat and Mass Transfer, 2016: 1-7.

Liu N, Xiao H, Li J M*. Experimental investigation of condensation heat transfer and pressure drop of propane, R1234ze(E) and R22 in minichannels. Applied Thermal Engineering, 2016.

Zhang H Y, Li J M*, Sun J L, et al. Theoretical analysis for condensation heat transfer of binary refrigerant mixtures with annular flow in horizontal mini-tubes. Heat and Mass Transfer, 2015: 1-8.

Liu N, Li J M*. Experimental study on condensation heat transfer of R32, R152a and R22 in horizontal minichannels. Applied Thermal Engineering, 2015, 90: 763-773.

Liu N, Li J M*. Experimental study on pressure drop of R32, R152a and R22 during condensation in horizontal minichannels. Experimental Thermal and Fluid Science, 2016, 71: 14-24.

Yan Y T, Dong X Q, Li J M*. Experimental study of methane diffusion in soil for an underground gas pipe leak. Journal of Natural Gas Science and Engineering, 2015, 27: 82-89.

Liu N, Li J M*, Sun J, et al. Heat transfer and pressure drop during condensation of R152a in circular and square microchannels. Experimental Thermal and Fluid Science, 2013, 47: 60-67.

Zhang H Y, Li J M*, Liu N, et al. Experimental investigation of condensation heat transfer and pressure drop of R22, R410A and R407C in mini-tubes. International Journal of Heat and Mass Transfer, 2012, 55(13): 3522-3532.

Li C, Li J M*. Laminar forced convection heat and mass transfer of humid air across a vertical plate with condensation. Chinese Journal of Chemical Engineering, 2011, 19(6): 944-954.

Li C, Li J M*, Zhang H R. Airside fin efficiencies for finned-tube heat exchangers with forced convection. Science China Technological Sciences, 2011, 54(9): 2468-2474.

Zhao X D, Li J M, Riffat S B. Numerical study of a novel counter-flow heat and mass exchanger for dew point evaporative cooling. Applied Thermal Engineering, 2008, 28(14): 1942-1951.

Sun J M, Wang S L, Li J M*. Numerical simulation on heat transfer characteristics of micro/mini-channel evaporators for air conditioners. Journal of Central South University of Technology, 2007, 14: 225-228.

An G, Li J M*, Wang B X. Numerical simulation for laminar flow and heat transfer of gas in rectangular micropassages with constant wall heat flux. Heat and mass transfer, 2003, 39(10): 843-848.

An G, Li J M*, Wang B X. Convective heat transfer for incompressible laminar gas flow in micropassage with constant wall temperature. Science in China Series E: Technolgical Science, 2001, 44(2): 164-169.

An G, Li J M*, Wang B X. Experimental Investigation on Flow Condensation Heat Transfer in Microtube. Energy Conversion and Application, 2001, 1: 305-308.

Li J M, Wang B X, Peng X F. ‘Wall-adjacent layer’analysis for developed-flow laminar heat transfer of gases in microchannels. International Journal of Heat and Mass Transfer, 2000, 43(5): 839-847.

Li J M*, Wang B X, Peng X F. A model for predicting laminar gas flow through micropassages. Journal of Thermal Science, 1997, 6(4): 279-285.

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