Results 51 to 60 of about 2,882 (203)

Ejector refrigeration: A comprehensive review [PDF]

, 2016
The increasing need for thermal comfort has led to a rapid increase in the use of cooling systems and, consequently, electricity demand for air-conditioning systems in buildings.
Besagni, Giorgio, Inzoli, Fabio, Mereu, Riccardo   +2 more
core   +1 more source

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

Advanced 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, Mohtada Sadrzadeh, Nima Izadyar, Elmira Jamei, Saleh Mobayen, Mehrdad Ahmadinejad   +5 more
wiley   +1 more source

Climate Change and Refrigerants: Thermodynamic Properties of Low-GWP Fluids for Domestic Applications and Binary Systems for Low-Temperature Options

Applied Sciences, 2020
The most commonly used refrigerants are potent greenhouse gasses that can contribute to climate change. Hydro-Fluoro-Olefins are low Global Warming Potential fluids.
Mariano Pierantozzi, Sebastiano Tomassetti, Giovanni Di Nicola   +2 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

Comparative study of heat transfer and pressure drop during flow boiling and flow condensation in minichannels [PDF]

, 2014
This paper was presented at the 4th Micro and Nano Flows Conference (MNF2014), which was held at University College, London, UK. The conference was organised by Brunel University and supported by the Italian Union of Thermofluiddynamics, IPEM, the ...
4th Micro and Nano Flows Conference (MNF2014), Andrzejczyk, R, Jakubowska, B, Mikielewicz, D, Mikielewicz, J   +4 more
core  

Working-Fluid replacement in supersonic organic Rankine Cycle Turbines [PDF]

, 2018
In this paper the effect of working-fluid replacement within an organic Rankine cycle turbine is investigated by evaluating the performance of two supersonic stators operating with different working fluids.
Markides, C., Sayma, A. I., White, M.
core   +1 more source

Candidate eco-friendly gas mixtures for MPGDs [PDF]

, 2018
Modern gas detectors for detection of particles require F-based gases for optimal performance.Recent regulations demand the use of environmentally unfriendly F-based gases t o be limited or banned. This review studies properties of potential eco-friendly
Ban, Y., Benussi, L., Bianco, S., Chen, G., Colafranceschi, S., Ferrini, M., Grassini, S., Kjolbro, J., Li, Q., Muhammad, S., Parvis, M., Piccolo, D., Saviano, G., Sharma, A., Yang, D.   +14 more
core   +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

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