Results 41 to 50 of about 765 (158)

Measurement of local condensation heat transfer coefficient (HTC) within a brazed plate heat exchanger (BPHE) and heat transfer assessment of low-GWP R134a replacements

Case Studies in Thermal Engineering
This paper presents local condensation Heat Transfer Coefficients (HTCs) and temperature profiles of R134a and three low-GWP replacements, R1234yf, R1234ze(E), and R152a, within Brazed Plate Heat Exchangers (BPHEs).
Giovanni A. Longo, Claudio Zilio
doaj   +1 more source

Flammability Comparison and Flame Retardancy Research on R32 and R1234yf

Zhileng xuebao, 2021
Halogenated alkanes and halogenated olefins, especially fluorine substitutes, are currently the most widely used synthetic refrigerants. With the implementation of a series of increasingly stringent environmental regulations, most optional fluorinated ...
Shi Yuqi, Yang Zhao, L
doaj  

Research Progress on High-Temperature Auto-Cascade Heat Pumps

Zhileng xuebao
High-temperature auto-cascade heat pumps exhibit a simple and compact structure and reliable operating performance and can achieve heating at relatively high temperatures.
Cao Jiaxu Rui Shengjun Feng Tingkang Zhou Luyao He Tao
doaj  

Measurement of Vapor Liquid Equilibrium for Difluoromethane (R32) +Fluoroethane (R161) + 2,3,3,3-Tetrafluoroprop-1-ene (R1234yf)

Zhileng xuebao, 2018
In the study, we focused on the vapor-liquid equilibrium property of the ternary system of R32+R161+R1234yf. The vapor–liquid equilibrium data was measured via a liquid-circulation apparatus at temperatures from 283.15 K to 323.15 K.
Yang Tao, Hu Xiaozhen, Meng Xianyang, Wu Jiangtao   +3 more
doaj  

Performance Test on Mixed Refrigerant in Domestic Refrigerator

International Journal of Engineering Research and Applications, 2017
J.Melvin Jones, T. Vasanthakumar, S. Somasundaram, S. Yadhavakumar, V. Usha   +4 more
openaire   +1 more source

Experimental Investigation of R1234ze(E)/R32 Replacing R410A in Heat Pump System

Zhileng xuebao, 2017
Nowadays, more and more attention is being paid to the new low Global Warming Potential (GWP) refrigerant R1234ze(E). Mixing this refrigerant with R32 has been studied in recent years.
Wang Lulu, Zhang Hua, Qiu Jinyou
doaj  

Experimental Investigation on Two-Phase Flow Pattern of Hydrocarbon Refrigerants in the Shell Side of a Helically Baffled Shell and Tube Heat Exchanger

Zhileng xuebao
The two-phase flow pattern of hydrocarbon working fluids on the shell side of a helically baffled heat exchanger for liquefied natural gas determines its heat transfer performance.
Yang Guocheng, Zheng Bangren, Ding Guoliang, Chen Jie   +3 more
doaj  

Development Status of Auto-cascade Refrigeration Technology

Zhileng xuebao, 2015
As a refrigeration technology with wide-temperature district, auto-cascade refrigeration has a very broad application prospect in the refrigeration and cryogenic field.
Liu Pengpeng, Sheng Wei, Jiao Zhongyan, Gao Xuyang   +3 more
doaj  

Composition Change Characteristics of Non-azeotropic Mixturesof Auto- cascade Refrigeration System

Zhileng xuebao, 2016
The condensation process of non-azeotropic mixed refrigerant is a isobaric process. Meanwhile, the concentrations of vapor and liquid continuously change.
Rui Shengjun, Zhang Hua, He Tao, Luo Hao
doaj  

Modeling and Experimental Analysis of Two-Phase Recuperation Heat Transfer in Systems Using Mixed-Refrigerant

Energies
Efficient heat recuperation is one of the most critical factors influencing the performance of mixed-refrigerant Joule–Thomson (MR JT) cryocoolers.
Zbigniew Rogala, Błażej Baran, Adrian Kwiatkowski, Rafał Siemasz   +3 more
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