Results 61 to 70 of about 739 (173)

Experimental Research on Performance of Room Air Conditioner with Alternative Refrigerants at High Ambient Temperature

Zhileng xuebao, 2018
Alternative refrigerants such as R290 and R32 are gradually being applied to room air conditioners (RACs). This study tested the performances of R290, R22, R410A, and R32 in the same system.
Liu Zhen, Hu Maojuan, Li Tingxun
doaj  

Development of Alternative Binary Mixtures to Replace HFC 134a in Domestic Refrigerator

Chemical Engineering Transactions, 2018
Thermodynamic and volumetric properties of alternate Refrigerant mixtures to replace R134a have been predicted using SRK EOS and modified PSRK mixing rule using UNIFAC method.
Parashurama Siddegowda, Govindegowda Mundur Sannappagowda, Ramesha D Kempegowda   +2 more
doaj   +1 more source

Experimental Study of a New Hydrocarbon Mixture for Domestic Re-frigerator to Replace R134a

ITEGAM-JETIA
In a domestic refrigerator with 4.49cc displacement compressors, the performance of R290 (48 by mass percent) and R600a (52 by mass percent) was examined experimentally. In our research, we employed a 210-litre refrigerator designed to run on R12 with a
Anjappa S B, parashurama s, Ramesha D K
doaj   +1 more source

Performance computation of window air conditioner with very low GWP near azeotropic refrigerant mixtures as a drop in Substitutes to R22

MATEC Web of Conferences, 2018
The principal objective of the present study is to compute the thermodynamic performance of window air conditioner based on standard vapour compression refrigeration cycle using R22, R407C and nineteen refrigerant mixtures.
Vali Shaik Sharmas, Setty Talanki Puttaranga, Babu Ashok   +2 more
doaj   +1 more source

Experimental Study on the Flow Condensation Heat Transfer of R290 and R22 in a Horizontal Circular Minitube

Zhileng xuebao, 2015
The condensation heat transfer characteristics of R290 and R22 were investigated experimentally in a horizontal circular minitube with 1.085 mm diameter. The mass flow rate of R22 is 200-1200 kg/(m2?s), and that of R290 is 200-650 kg/(m2?s).
Xiao Hang, Li Junming
doaj  

The Use of R290 As a Replacement For R404A in Block Ice Machines

R.E.M. (Rekayasa Energi Manufaktur) Jurnal
This study evaluates the performance of R290 refrigerant as an alternative to R404A in block ice-making machines based on vapor compression cycles. The method used is a quantitative experimental approach with direct testing of compressor power, condenser power, evaporator power, and coefficient of performance (COP) parameters.
Vigasta Febiadisti, null Nia Nuaraeni Suryaman, null Arifin Santosa, null Aep Saepudin, null Andri Setiawan   +4 more
openaire   +1 more source

Review of hydrocarbon refrigerants as drop-in alternatives to high-GWP refrigerants in VCR systems: The case of R290

Cleaner Engineering and Technology
Global warming issues are of enormous interest to researchers and decision-makers. Some refrigerants have a large share of harmful emissions to the environment, so it is necessary to shed light on eco-friendly refrigerants and demonstrate the feasibility
Osama Abd Al-Munaf Ibrahim, Saif Ali Kadhim, Karrar A. Hammoodi, Farhan Lafta Rashid, Ali Habeeb Askar   +4 more
doaj   +1 more source

Starting performance comparison of R290 and R32 air conditioning systems under extreme cold conditions in Mohe China

International Journal of Air-Conditioning and Refrigeration
The global phase-down of high-GWP refrigerants necessitates a transition to sustainable alternatives like R290 (GWP = 3) and R32 (GWP = 675). However, their dynamic startup reliability in extreme polar climates remains poorly understood.
Jie Yang, Jiwei Wang, Xinxue Dai, Zepeng Chen, Cheng Shi, Xintao Liu   +5 more
doaj   +1 more source

Experimental Study on R290 Performance of an Integrated Thermal Management System for Electric Vehicle

Energies
Integrated thermal management system (ITMS) technology for electric vehicles (EV) has become a major industry research direction. However, R290 refrigerants are still not applied on a large scale in EVs.
Zihao Luo, Shusheng Xiong, Min Wen, Jiahao Zhao, Yifei Zhang   +4 more
doaj   +1 more source

Experimental investigation of a bypass two-circuit cycle refrigerator-freezer with low GWP zeotropic refrigerants

Case Studies in Thermal Engineering
Based on the pursuit of lower temperatures and environmentally friendly refrigerants in domestic refrigerator-freezers, this paper investigates the performance of a hydrocarbon mixture R600/R290 in a bypass two-circuit cycle applied in −40 °C frost-free ...
Jiarui Liu, Ye Liu
doaj   +1 more source