In this paper, the environment friendly refrigerant options suitable for automobile air
conditioners are reviewed. Initially, the thermophysical, thermodynamic and chemical …

High-temperature heat pumps represent an emerging technology with a great potential in
supplying clean heat to energy intensive industries. Suitable refrigerants for high …

New energy transportation is an important link for the future development of global energy
industry, while higher and more precise requirements for the new energy vehicles' air …

A thorough comparison of the R744 and R134a HP systems at both cooling and heating
modes is made at the same test conditions. The HP system structure is different, with indoor …

To better design and optimize heat exchanger, this study utilized an evaluation method for
evaluating local cooling heat transfer with multiple effects of the Richardson number, field …

Previous research has shown that CO 2 mixtures can improve the thermal performance of
CO 2 refrigeration systems. Moreover, the use of a microchannel heat exchanger can reduce …

CO2 is an environmentally friendly heat transfer fluid and has many advantages in thermal
energy and power systems due to its peculiar thermal transport and physical properties …

Aiming at solving the problem of high global warming potential of R134a, a new mixed
refrigerant R13I1/R152a (molar fraction ratio of 35: 65) with no ozone depletion potential …

CO 2 air source heat pump heating technology has characteristics of strong adaptability to
outdoor temperature in cold areas and high outlet temperature, which is widely used in …

The problem of mismatch in temperature glides in a water-cooled carbon dioxide (CO 2) gas
cooler has attracted much attention. This paper quantifies the degree of mismatch in …