Results 91 to 100 of about 49,340 (212)

Human Body Exergy Balance: Numerical Analysis of an Indoor Thermal Environment of a Passive Wooden Room in Summer

open access: yesBuildings, 2015
To obtain a basic understanding of the resultant changes in the human body exergy balance (input, consumption, storage, and output) accompanying outdoor air temperature fluctuations, a “human body system and a built environmental system” coupled with ...
Koichi Isawa
doaj   +1 more source

Analysis of the Behaviour of Biofuel-Fired Gas Turbine Power Plants [PDF]

open access: yes, 2011
The utilisation of biofuels in gas turbines is a promising alternative to fossil fuels for power generation. It would lead to significant reduction of CO2 emissions using an existing combustion technology, although significant changes seem to be needed
Escudero Olano, Marcos   +2 more
core   +1 more source

How do exergy-based indicators respond to physical habitat changes?

open access: yesEcological Indicators
Eco-exergy and specific eco-exergy are thermodynamic indicators widely used in recent decades to monitor the ecological status of aquatic ecosystems. However, there is still a gap in the knowledge of how these indicators respond to variations in stream ...
Marden Seabra Linares   +5 more
doaj   +1 more source

Advanced Thermodynamic Analysis and Evaluation of a Supercritical Power Plant

open access: yesEnergies, 2012
A conventional exergy analysis can highlight the main components having high thermodynamic inefficiencies, but cannot consider the interactions among components or the true potential for the improvement of each component.
George Tsatsaronis   +3 more
doaj   +1 more source

Exergy sustainability. [PDF]

open access: yes, 2006
Exergy is the elixir of life. Exergy is that portion of energy available to do work. Elixir is defined as a substance held capable of prolonging life indefinitely, which implies sustainability of life. In terms of mathematics and engineering, exergy sustainability is defined as the continuous compensation of irreversible entropy production in an open ...
Robinett, Rush D., III   +2 more
openaire   +2 more sources

Quantifying resource footprints of products and services as the exergy extracted from nature by different countries [PDF]

open access: yes, 2014
Although our whole society depends on the use of natural resources, they are not always used in a sustainable way. To achieve a more sustainable development, resource consumption needs to be measured.
Dewulf, Jo   +2 more
core   +1 more source

Thermodynamic evaluation of a kerosene pre- Fraction unit using energy and exergy analysis

open access: yesCase Studies in Thermal Engineering, 2017
This work applies the method of energy and exergy analysis over first step of linear alkyl benzene (LAB) production namely kerosene pre fraction plant, to determine unit energy and exergy performance and loss, besides of opportunities for improvement ...
Ehsan Ghasemi   +3 more
doaj   +1 more source

Exergy Analysis of a Ground-Coupled Heat Pump Heating System with Different Terminals

open access: yesEntropy, 2015
In order to evaluate and improve the performance of a ground-coupled heat pump (GCHP) heating system with radiant floors as terminals, an exergy analysis based on test results is performed in this study.
Xiao Chen, Xiaoli Hao
doaj   +1 more source

Preliminary experimental comparison and feasibility analysis of CO2/R134a mixture in Organic Rankine Cycle for waste heat recovery from diesel engines [PDF]

open access: yes, 2019
This paper presents results of a preliminary experimental study of the Organic Rankine Cycle (ORC) using CO2/R134a mixture based on an expansion valve.
Feng, W   +5 more
core  

Analysis of Operation Parameters of Fish Refrigeration by Exergy Analysis. Case Study

open access: yesEnvironmental and Climate Technologies, 2019
Unlike energy efficiency, in terms of exergy efficiency it is possible to compare the existing operation of an energy conversion system with the ideal operation.
Terehovics Edvins   +2 more
doaj   +1 more source

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