Results 61 to 70 of about 2,882 (203)

Thermodynamic Optimization of Advanced Organic Rankine Cycle Configurations for Geothermal Energy Applications

open access: yesEnergies, 2022
The Organic Rankine Cycle (ORC) is commonly accepted as a viable technology to convert from low to medium temperature geothermal energy into electrical energy.
Nenad Mustapić   +3 more
doaj   +1 more source

CO2 with Mechanical Subcooling vs. CO2 Cascade Cycles for Medium Temperature Commercial Refrigeration Applications Thermodynamic Analysis [PDF]

open access: yes, 2017
A recent trend to spread the use of CO2 refrigeration cycles in warm regions of the world is to combine a CO2 cycle with another one using a high performance refrigerant.
Cabello López, Ramón   +4 more
core   +2 more sources

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

Experimental determination of the optimum working conditions of a transcritical CO2 refrigeration plant with integrated mechanical subcooling [PDF]

open access: yes, 2020
Subcooling methods for transcritical CO2 plants are being studied in order to improve their behavior. Among them, the Integrated Mechanical Subcooling system is one of the most promising owing that performs with high efficiency and it is a total-CO2 ...
Cabello López, Ramón   +5 more
core   +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

Experimental and Theoretical Investigations of a Ground Source Heat Pump System for Water and Space Heating Applications in Kazakhstan

open access: yesEnergies, 2022
The ground source heat pump heating system is considered as one of the best solutions for the transition towards green heating under the continental climate conditions like Kazakhstan.
Yelnar Yerdesh   +10 more
doaj   +1 more source

State of Art on ORC Applications for Waste Heat Recovery and Micro-cogeneration for Installations up to 100kWe [PDF]

open access: yes, 1976
The growing cost for energy production and distribution as well as problems related to environmental pollution have induced an increasing interest in the research of alternative solutions and in particular innovative technologies capable of compromising ...
Obi, John Besong
core   +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

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

open access: yesMaterialwissenschaft 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

Theoretical analysis of R1234yf and R1234yf/R125 mixture as replacement of R134a in vapor compression system

open access: yesInternational Journal of Low-Carbon Technologies
Abstract In this article, in order to reduce the climate hazards caused by global warming, a new environmentally friendly mixed refrigerant, R1234yf/R125 (with a mass ratio of 95:5), is introduced. Alongside R1234yf, the article conducts theoretical research to assess the feasibility of substituting R134a in vapor compression systems ...
Yongmei Lin   +5 more
openaire   +1 more source

Home - About - Disclaimer - Privacy