Results 71 to 80 of about 3,370 (214)

Exergy based modeling and optimization of solar thermal collector provided with impinging air jets

Journal of King Saud University: Engineering Sciences, 2018
The irreversible absorption of solar energy accompanied by emission for conversion into thermal energy takes place at the cost of exergy losses from the collector and the effectiveness of this conversion is evaluated in terms of exergy efficiency based ...
Ranchan Chauhan, N.S. Thakur, Tej Singh, Muneesh Sethi   +3 more
doaj   +1 more source

Comparing exergy and heat pump work in distillation systems

AIChE Journal, Volume 71, Issue 9, September 2025.
Abstract This study compares the exergy supplied to a distillation column with the actual energy consumption of a heat pump‐assisted distillation (HPAD) system. It evaluates the reliability of exergy as a proxy for heat pump work demand in such systems.
Akash Sanjay Nogaja, Mohit Tawarmalani, Rakesh Agrawal   +2 more
wiley   +1 more source

Energetic and Exergetic Efficiencies of Biomass Gasification Processes

The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, 2012
A promising way to use biomass for the production of heat, electricity and other biofuels is through biomass gasification. In the gasification process, the chemical energy of the solid fuel is converted into the chemical and thermal energy of the gas produced.
Daniela TASMA, Tănase PANAIT, Alexandrina TEODORU, Georgiana G. ROLEA   +3 more
openaire   +1 more source

Exploring Low‐Global Warming Potential Refrigerants for Medium‐Charge Systems

Energy Technology, Volume 13, Issue 9, September 2025.
This study evaluates 15 low‐global warming potential (GWP) refrigerants as alternatives for medium‐charge systems, focusing on environmental impacts, operational performance, and system design integration. Key findings reveal R‐447A's suitability for standard climates and R‐454B's advantages in high ambient conditions, providing actionable guidance for
Fadi Alsouda, Nick S. Bennett, Suvash C. Saha, Mohammad S. Islam   +3 more
wiley   +1 more source

Energetic, exergetic, and exergoeconomic analyses of beer wort production processes

Frontiers in Energy Research
Energy efficiency strategies in industrial breweries examine the inefficiency of thermal systems from a thermodynamic perspective. However, understanding the costs of inefficiencies in systems, including non-thermodynamic costs, requires exergoeconomics.
O. S. Jemigbeyi, T. A. O. Salau, O. M. Oyewola   +2 more
doaj   +1 more source

Flat Plate Collector Thermal Performance Assessment Using Hybrid MWCNT/Fe3O4/Water Nanofluid for Efficiency Enhancement: An Experimental Study

Engineering Reports, Volume 7, Issue 7, July 2025.
The thermal performance of flat plate collectors (FPCs) was enhanced using nanofluids. A hybrid MWCNT/Fe3O4/water nanofluid achieved 71.9% thermal efficiency, outperforming conventional fluids. Improved Nusselt number, friction factor, and convective heat transfer highlight its effectiveness in optimizing FPC systems. ABSTRACT The flat plate collector (
T. Sathish, Vinesh Thiruchelvam, Narendran Ramasenderan, Sathish Kumar Selvaperumal, A. Deepak, Mustafa Abdullah, A. Johnson Santhosh   +6 more
wiley   +1 more source

Thermodynamic Optimization of Trigeneration Power System

Energies
Worldwide, the growing demand for energy has been largely met through power cycles utilizing fossil fuels. Combined cycles, which integrate a gas turbine with a steam cycle, prove to be the best alternative due to their power generation capacity and high
Ladislao Eduardo Méndez-Cruz, Miguel-Ángel Gutiérrez-Limón, Raúl Lugo-Leyte, Mauricio Sales-Cruz   +3 more
doaj   +1 more source

Comparative Environmental Impact Assessment of a Daily Electricity Restitution Operated by Advanced Adiabatic Compressed Air Energy Storage Systems (A‐CAES)

Energy Storage, Volume 7, Issue 4, June 2025.
ABSTRACT Renewable energy storage is essential to address the intermittent nature of renewable sources. Beyond widely used Li‐ion batteries and Pumped Hydro Energy Storage (PHES), Advanced Adiabatic Compressed Air Energy Storage (A‐CAES) offers promising potential, although it is not yet commercially available in Europe.
M. Lucas, H. Bewi Komesse, S. Duval—Dachary, D. Teixeira   +3 more
wiley   +1 more source

Exergetic and Environmental Analyses of Turbojet Engine

, 2020
This study deals with exergetic and environmental analyses of turbojet engine used on the military training aircrafts. in the analysis, the engine data measured in the Engine Test Cell at First Air Maintenance and Factory Directorate of Turkish Air ...
Balli, Ozgur, Atalay, Halil, Yuksel, Burak, Gunerhan, Huseyin, Hepbasli, Arif   +4 more
core   +1 more source

Postharvest Processing of Millets: Advancements & Entrepreneurship Development Opportunities

Future Postharvest and Food, Volume 2, Issue 2, Page 108-123, June 2025.
The article discusses the different postharvest processing operations of millets and their potential areas for exploration such as the development of value‐added processing technologies, diversification of processing technologies, and expansion of machinery for commercial production in food markets. ABSTRACT Millets, a member of the Poaceae family, are
Gopika Dinesh, Aparna S. Krishna, Yaghuvendra Kumar, T. Jayasree Joshi, P. Srinivasa Rao   +4 more
wiley   +1 more source