Results 1 to 10 of about 155 (132)

Thermodynamic Performance Analysis and Refrigerant Evaluation of Enhanced Cascade Vapor-Injection Refrigeration Systems [PDF]

Entropy
To enhance the compression efficiency and refrigerant flow capacity for low-temperature refrigeration applications, the vapor-injection strategy is innovatively synthesized with two-stage cascade refrigeration systems.
Jidong Li, Maolin Cai, Weiqing Xu, Guanwei Jia   +3 more
doaj   +2 more sources

Comprehensive Exergy and Exergoeconomic Analyses and Optimization of a Three-Stage Cascade Refrigeration System Using Environmentally Friendly Refrigerants [PDF]

Entropy
Ultra-low-temperature (ULT) refrigeration systems are widely required in applications such as biomedical storage, cryogenic processing, and advanced scientific facilities, where both exergy efficiency and economic performance are critical. In this study,
Cenker Aktemur, Ezgi Gurgenc
doaj   +2 more sources

Performance comparison of the single-refrigerant cascade refrigerating system

Energy Reports, 2022
In the food refrigeration industry, the single-stage compression refrigerating system cannot meet the operating conditions of a high-pressure ratio when the evaporating temperature decreases.
Zhili Sun, Jianhua Quan, Yi’an Wang, Ruishen Li, Jie Peng, Haoran Zhang, Jiapei Xu, Huan Sun, Shen Tian, Shengming Dong, Kaiyong Hu, Wenxiang Chen   +11 more
doaj   +1 more source

Energy, Exergy, and Environment Performance Evaluation of Cascade Refrigeration System with Natural Refrigerants

Hittite Journal of Science and Engineering, 2023
Cascade refrigeration systems are preferred in applications where low temperature cooling is required, such as in some special industrial and laboratory applications.
Meltem Koşan
doaj   +1 more source

CFD-Entropy generation analysis of refrigerant-based nanofluids flow in a tube [PDF]

MATEC Web of Conferences, 2020
The present paper aims to numerically investigate the flow, heat transfer and entropy generation of some hydrocarbon based nanorefrigerants flowing in a circular tube subject to constant heat flux boundary condition.
Zohud Mohammed, Ouadha Ahmed, Benzeguir Redouane   +2 more
doaj   +1 more source

Analytical computation of thermodynamic performance parameters of actual vapour compression refrigeration system with R22, R32, R134a, R152a, R290 and R1270

MATEC Web of Conferences, 2018
The present work focuses on analytical computation of thermodynamic performance of actual vapour compression refrigeration system by using six pure refrigerants. The refrigerants are namely R22, R32, R134a, R152a, R290 and R1270 respectively.
Vali Shaik Sharmas, Setty Talanki Puttaranga, Babu Ashok   +2 more
doaj   +2 more sources

Condensation of Hydrocarbons in Compact Smooth and Microfinned Tubes

Energies, 2021
A database for flowing condensation of three hydrocarbons, namely propane (R290), isobutane (R600a), and propylene (R1270), is extended by experimental tests in a smooth tube and two microfinned tubes with an increase of heat exchange area of 1.51 and 2 ...
Ehsan Allymehr, Ángel Álvarez Pardiñas, Trygve Magne Eikevik, Armin Hafner   +3 more
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   +2 more sources

Experimental Analysis of Alternate Refrigerant Mixtures in Refrigeration System [PDF]

E3S Web of Conferences
This study focuses on conducting experimental analyses to assess the impact of alternative refrigerant blends within a vapor compression refrigeration system, with the aim of replacing the existing R134a refrigerant.
R Ragavendiran, A Gowrishankar, Hussaini M Mohammadha, G Ravivarman, K N Gunasekaran, Uday Kiran Kasi, R Girimurugan   +6 more
doaj   +1 more source

Energy, Exergy, and Environmental (3E) Analysis of Hydrocarbons as Low GWP Alternatives to R134a in Vapor Compression Refrigeration Configurations

Applied Sciences, 2021
The phase-down of hydrofluorocarbons and substitution with low global warming potential values are consequences of the awareness about the environmental impacts of greenhouse gases.
Morteza Ghanbarpour, Adrián Mota-Babiloni, Bassam E. Badran, Rahmatollah Khodabandeh   +3 more
doaj   +1 more source