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The investigation presented a numerical simulation on heat transfer behaviors in microchannel evaporator of a CO air conditioning system. The conditions for numerical simulation were applied by the experimental data of a CO 2 air conditioning cycle. This cycle worked with the cooler pressure of 85 bar, evaporator pressure of 37 bar, and the CO 2 flow rate of 5.2 g/s. The temperature and pressure in microchannels are uniform; they are suitable...
8 p hcmute 01/06/2018 435 1
Từ khóa: Numerical simulation, CO refrigerant, air conditioning system, heat transfer, evaporator
An Experimental Investigation on Condensation in Horizontal Microchannels
This paper presented an experimental study on condensation in two horizontal microchannel condensers (M1 and M2) with different substrate and channel lengths. The mass flow rate of steam and pressure drop affected to oscillation of condensation profile, beginning condensation point, and performance index. Moreover, heat transfer rate of model M1 was higher than that of model M2 at the same flow rate or pressure drop of steam. The heat transfer...
9 p hcmute 01/06/2018 338 2
Từ khóa: Condensation, heat transfer, microchannel, pressure drop, temperature.
In this paper, the effects of mass flow rate and temperature on innovative cooling system of a motorcycle using rectangular minichannel heat exchanger were investigated by simulation and experiment. The size of the minichannel heat exchanger is reduced by 20%, made it easier to manufacture, and cut down its cost by approximately 40% compared to the original cooling system.
8 p hcmute 16/05/2018 431 1
Từ khóa: cooling system, minichannel heat exchanger, heat transfer simulation, laminar flow, thermostat
An experiment on a co2 air conditioning system with copper heat exchangers
This paper presented an experiment on a CO2 air conditioning system with copper heat exchangers. In this study, the compressor and cooler were tested with hydraulic method to determine the deformed and torn temperatures. The results show that conventional compressor is not suitable for using high pressure, due to the COP of cycle is very low (0.5 only). With CO2 compressor, the cycle can achieved COP of 3.07 at the evaporative temperature of...
7 p hcmute 16/05/2018 465 1
Từ khóa: air conditioning system, heat exchanger, cooler, evaporator, CO2 refrigerant.
The investigation presented a numerical simulation on heat transfer behaviors in microchannel evaporator of a CO2 air conditioning system. The conditions for numerical simulation were applied by the experimental data of a CO2 air conditioning cycle. This cycle worked with the cooler pressure of 85 bar, evaporator pressure of 37 bar, and the CO2 flow rate of 5.2 g/s.
8 p hcmute 16/05/2018 521 1
Từ khóa: Numerical simulation, CO refrigerant, air conditioning system, heat transfer, evaporator
An experimental investigation on condensation in Horizontal Microchannels
This paper presented an experimental study on condensation in two horizontal microchannel condensers (M1 and M2) with different substrate and channel lengths. The mass flow rate of steam and pressure drop affected to oscillation of condensation profile, beginning condensation point, and performance index. Moreover, heat transfer rate of model M1 was higher than that of model M2 at the same flow rate or pressure drop of steam. The heat transfer...
9 p hcmute 15/05/2018 431 2
Từ khóa: Condensation, heat transfer, microchannel, pressure drop, temperature
Introduction to Thermal Systems Engineering: Thermodynamics, Fluid Mechanics, and Heat Transfer
this book introduces thermal engineering using a systems focus, introduces structured problem-solving techniques, and provides applications of interest to all engineers.
7 p hcmute 22/03/2018 420 2
Từ khóa: Introduction to Thermal Systems Engineering: Thermodynamics, Fluid Mechanics, and Heat Transfer
Automotive Heating and Air Conditioning
This book is part of the Pearson Automotive Professional Technician Series, which provides full-color, media-integrated solutions for today's students and instructors covering all eight areas of ASE certification, plus additional titles covering common courses. Peer reviewed for technical accuracy, the series and the books in it represent the future of automotive textbooks...
7 p hcmute 20/03/2018 421 8
Presents introductory material appropriate for a first course in heat transfer. This edition features design-oriented problems and a greater emphasis on the computer, with more material on how to establish computational algorithms. The IBM diskette accompanying the book can be used to help resolve the design-oriented problems...
7 p hcmute 20/03/2018 269 1
Từ khóa: Heat Transfer
The Finite Element Method in Heat Transfer Analysis
Heat transfer analysis is a problem of major significance in a vast range of industrial applications. These extend over the fields of mechanical engineering, aeronautical engineering, chemical engineering and numerous applications in civil and electrical engineering. If one considers the heat conduction equation alone the number of practical problems amenable to solution is extensive. Expansion of the work to include features such as phase...
5 p hcmute 04/08/2017 577 1
Từ khóa: The Finite Element Method in Heat Transfer Analysis
A STUDY OF WASTE HEAT UTILIZATION TO PRODUCE ELECTRICITY BY USING STIRLING ENGINE
This paper studies the use of Stirling engine as a means to utilize the waste heat from automobiles and motorbikes to generate electricity. Released smoke from vehicles and motorbikes during their working cycles will be led to a newly designed Stirling engine to create rotary movement to turn an electrical generator. In this way, electricity will be produced and then stored in a battery system. The highest reported energy recovery efficiency...
7 p hcmute 15/06/2017 465 3
Từ khóa: Stirling engine, waste heat, design, generator, automobile, motorbike
An Experimenatl Study on Heat Transfer Behaviors of A Welded - Aluminum Minichannel Heat Exchanger
This paper presented an investigation for heat transfer behaviors of a welded-Aluminum minichannel heat exchanger (MNHE) using experimental method. In this study, the results show that the welding Aluminum method for MNHE is less efficiency than the bonding PMMA method at high mass flow rate of water. For water having the inlet temperature of 62C and mass flow rate of 4.1g/s, the heat transfer rate of the welded- Aluminum MNHE is...
8 p hcmute 14/06/2017 407 1
Từ khóa: Temperature, heat transfer, heat exchanger, minichannel, experimental.
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