Results 61 to 70 of about 1,638 (192)

Experimental Analysis of Local Condensation Heat Transfer Characteristics of CF₃I Inside a Plate Heat Exchanger

Fluids, 2023
Due to its low global warming potential (GWP) and good environmental properties, CF3I can be a suitable component of refrigerant mixtures in the field of refrigeration and air conditioning.
Md. Mahbubur Rahman, Djiby Bal, Keishi Kariya, Akio Miyara   +3 more
doaj   +1 more source

Utilizing Synergistic Effect in Pd‐Doped Mesoporous γ‐Al2O3/SnO2 for Multiple Freon Refrigerant Gases Detection

Advanced Sensor Research, Volume 4, Issue 9, September 2025.
Due to the synergistic effect of improved catalytic decomposition mechanism and Schottky‐barrier effect, the Pd‐γ‐Al2O3/SnO2 sensor exhibits outstanding response, good stability, selectivity, repeatability, and universality in sensing different Freon gases, which demonstrates its potential for use in Freon refrigeration leakage detection.
Jiahong Wen, Yaxin Wang, Ruoning Chu, Jinhai Li, Ze Chen, Yongjun Zhang, Xiaoyu Zhao, Qi‐Qi Fu   +7 more
wiley   +1 more source

Sustainable Thermal Solutions: Enhancing Heat Transfer with Turbulators and Nanofluids

Advanced Energy and Sustainability Research, Volume 6, Issue 5, May 2025.
Nanofluids, which are nanoparticle suspensions in base fluid, facilitate heat transmission due to their improved thermal conductivity. Turbulators, which are inserts into fluid flow channels, disturb the flow, increasing turbulence and hence the heat transfer rate.
Zafar Said, Aggrey Mwesigye, Lingala Syam Sundar, Arun Kumar Tiwari, Kalidasan Balasubramanian, Hafiz Muhammad Ali, Evangelos Bellos, Chaerin Gim, Mohammad Shamsuddin Ahmed, Jang‐Yeon Hwang   +9 more
wiley   +1 more source

Performance and Economic Analysis of Two Types of High-Temperature Heat Pump Based on New Refrigerants

Applied Sciences
This paper proposes, for the first time, the research concept of comparing energy and economy between transcritical cycle high-temperature heat pumps and subcritical cycle high-temperature heat pumps with new refrigerants. Experiments and simulations are
Dahan Sun, Jiang Qin, Zhongyan Liu
doaj   +1 more source

Applications of refrigerant R1234yf in heating, air conditioning and refrigeration systems: A decade of researches

, 2022
HFC refrigerants as R134a, R404A, R407C and R410A are commonly used in heating, air conditioning and refrigeration (HACR) systems since Kyoto protocol. However, they are phased-out due to their high global warming potential (GWP).
Machado, Luiz, Revellin, Rémi, Garcia Pabon, Juan Jose, Belman-Flores, J.M., Khosravi, Ali   +4 more
core   +1 more source

Theoretical Performance Analysis of an R1234yf Refrigeration Cycle Based on the Effectiveness of Internal Heat Exchanger

Hittite Journal of Science and Engineering, 2017
I n this paper, the effects of internal heat exchanger IHX effectiveness on the performance parameters of the refrigeration cycle with R1234yf were theoretically investigated.
Mehmet Direk, Alper Kelesoglu, Ahmet Akin   +2 more
doaj   +1 more source

Energy Analysis of HFC-152a, HFO-1234yf and HFC/HFO Mixtures as a Direct Substitute to HFC-134a in a Domestic Refrigerator

Journal of Mechanical Engineering, 2021
The Kyoto protocol emphasized the need of replacement of HFC refrigerant due to their high GWP values that causes pollution in the environment. So in this paper the refrigerants R1234yf, R152a and HFOs/HFCs mixtures of R134a/R152a/R1234yf such as ARM42 ...
Hasheer Shaik Mohammad, Srinivas Kolla, Bala Prasad Katuru   +2 more
doaj   +1 more source

Thermodynamic Performance of a Novel Compressed Carbon Dioxide Energy Storage System Based on Guanidinium Sulfate (Gua2SO)4) Adsorption

Energy Science &Engineering, Volume 13, Issue 3, Page 1132-1145, March 2025.
ABSTRACT In recent years, energy storage technology has developed rapidly with the aim to promote the development of renewable energy sources and establish a green and sustainable energy structure. A novel compressed CO2 energy storage system based on Gua2SO4 adsorption is proposed in this study.
Jiaxin Liu, Zhan Liu
wiley   +1 more source

Performance Investigation of a Cabin Thermal Management System for Electric Vehicles Based on R290 Refrigerant

International Journal of Energy Research, Volume 2025, Issue 1, 2025.
Electric vehicle (EV) thermal management systems (TMSs) face a critical challenge in adopting environmentally friendly refrigerants, essential for adaptability, thermal safety, driving range optimization, and passenger comfort across wide temperature ranges.
Jiahao Zhao, Zihao Luo, Yifei Zhang, Abubakar Unguwanrimi Yakubu, Xuanhong Ye, Qi Jiang, Shusheng Xiong, Chenbo Xia, Geng Chen   +8 more
wiley   +1 more source

Experimental research of a novel binary solution for diffusion absorption cooling systems Experimentelle Untersuchung einer neuartigen binären Lösung für Diffusions‐Absorptions‐Kühlsysteme

Materialwissenschaft und Werkstofftechnik, Volume 55, Issue 5, Page 700-708, May 2024.
The paper aimed to consider a novel binary solution consisting of tetrafluoropropene (refrigerant) and dimethylacetamide (absorbent) as a replacement for the ammonia water solution in diffusion absorption refrigeration systems. Thermodynamic properties of the solution were obtained experimentally.
B. Gurevich, A. Zohar
wiley   +1 more source