Results 11 to 20 of about 2,721 (226)

Simulation Research on a Cogeneration System of Low-Concentration Photovoltaic/Thermal Coupled with Air-Source Heat Pump

open access: yesEnergies, 2022
In this paper, a low-concentration photovoltaic/thermal (LCPV/T) coupled with air-source heat pump (AHP) system is proposed which fully utilizes the heat generated by LCPV/T and improves the performance of the AHP. The system is built and investigated in
Dengxin Ai   +4 more
doaj   +2 more sources

Thermal Exergy Analysis of a Building [PDF]

open access: yesEnergy Procedia, 2014
AbstractExergy analysis has been contemplated to evaluate the direct energy impact of a building on the environment. The authors’ approach is to consider the building as a “black box” that needs exergy. The surrounding and the Environment are closed systems, in thermodynamic equilibrium between them. The building is transient open system.
BALDI, MARTA GIULIA, LEONCINI, LORENZO
openaire   +3 more sources

Building Thermal Exergy Analysis

open access: yes, 2016
The energy and environmental impacts due to energy consumption in the building sector are one of the main topics in the global energy field. A building is an energy system that uses energy sources in order to maintain its functionality and to ensure thermal indoor comfort for its occupants.
Lorenzo Leoncini, Marta Giulia Baldi
openaire   +3 more sources

Studies of the unavoidable exergy loss rate and analysis of influence parameters for pipeline transportation process

open access: yesCase Studies in Thermal Engineering, 2018
According to the exergy balance relationship among the various items in the crude oil transportation process system, the exergy balance equation is established and each exergy loss is calculated.
Qinglin Cheng   +6 more
doaj   +2 more sources

Performance Prediction and Optimization of Nanofluid-Based PV/T Using Numerical Simulation and Response Surface Methodology [PDF]

open access: yesNanomaterials
A numerical investigation was carried out in ANSYS Fluent® on a photovoltaic/thermal (PV/T) system with MXene/water nanofluid as heat transfer fluid (HTF).
Sreehari Sreekumar   +4 more
doaj   +2 more sources

Thermodynamic modeling and performance analysis of photovoltaic-thermal collectors integrated with phase change materials: Comprehensive energy and exergy analysis

open access: yesResults in Engineering
Phase change materials (PCMs) integrated with photovoltaic-thermal (PVT) collectors can simultaneously generate and store electrical and thermal energy.
Hussein M. Taqi Al-Najjar   +5 more
doaj   +3 more sources

Exergy optimization of a multi-stage solar micro-cogeneration system [PDF]

open access: yes, 2023
This paper proposes a dynamic model of a solar-based micro-cogeneration system called photovoltaic-thermal (PVT) collector to perform a design optimization of the multi-stage PVT system.
Kallio, S. (Sonja), Siroux, M. (Monica)
core   +2 more sources

Exergy Analysis and Human Body Thermal Comfort Conditions: Evaluation of Different Body Compositions

open access: yesEntropy, 2018
This article focuses on studying the effects of muscle and fat percentages on the exergy behavior of the human body under several environmental conditions.
Matheus Martinez Garcia   +3 more
doaj   +1 more source

Application of Exergy Analysis in Flue Gas Condensation Waste Heat Recovery System Evaluation

open access: yesEnergies, 2022
Flue gas condensation heat recovery technology has a good technical and economic performance in industrial exhaust gas waste heat recovery. Thermal efficiency analysis is the traditional analysis method for the flue gas condensation heat recovery system ...
Le Zhang   +4 more
doaj   +1 more source

Exergy Dynamics of Systems in Thermal or Concentration Non-Equilibrium [PDF]

open access: yesEntropy, 2017
The paper addresses the problem of the existence and quantification of the exergy of non-equilibrium systems. Assuming that both energy and exergy are a priori concepts, the Gibbs “available energy” A is calculated for arbitrary temperature or concentration distributions across the body, with an accuracy that depends only on the information one has of ...
Enrico Sciubba, Federico Zullo
openaire   +4 more sources

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