Results 41 to 50 of about 386 (171)

Multi‐Objective Optimization of a Climate‐Responsive Green Hydrogen‐Based Multi‐Generation System with Advanced Energy Storage and Heat Recovery

open access: yesAdvanced Sustainable Systems, Volume 9, Issue 10, October 2025.
A novel hydrogen‐based multi‐generation system integrates CAES, PEME, and ORC for climate‐responsive power generation. Using response surface methodology, the system is optimized for energy efficiency, emissions, and cost. Results highlight its strong performance in temperate climates and its potential for modular, scalable deployment.
Ehsanolah Assareh   +5 more
wiley   +1 more source

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

open access: yesFluids, 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   +3 more
doaj   +1 more source

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

open access: yesAdvanced 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   +7 more
wiley   +1 more source

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

open access: yesApplied 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

Sustainable Thermal Solutions: Enhancing Heat Transfer with Turbulators and Nanofluids

open access: yesAdvanced 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   +9 more
wiley   +1 more source

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

open access: yesHittite 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   +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

open access: yesJournal 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   +2 more
doaj   +1 more source

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

open access: yesEnergy 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

open access: yesInternational 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   +8 more
wiley   +1 more source

Analysis the characteristics of R1234yf, R1234ze, R134a on reefer container

open access: yesIOP Conference Series: Earth and Environmental Science, 2020
Abstract In this work, the characteristics of R1234yf, R1234ze, R134a on reefer container were studied. According to pressure enthalpy (p-h) diagram, a computer code developed by Matlab was used to calculate power consumption, coefficient of performance (COP), compression ratio, discharge temperature, etc.
Defeng Ding   +4 more
openaire   +1 more source

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