Results 21 to 30 of about 4,154 (188)

Exergy of heat flows of the air-to-air plate heat exchanger

open access: yesResearch in Agricultural Engineering, 2004
Based on extensive measurements of the temperature, humidity and flow rate of the heated and cooled air in the plate heat exchanger this article analyses the influence of air inlet temperatures on both the exergy efficiency of the heat exchanger and the ...
R. Adamovský, D. Adamovský, D. Herák
doaj   +1 more source

Numerical Investigation on the Impact of Exergy Analysis and Structural Improvement in Power Plant Boiler through Co-Simulation

open access: yesEnergies, 2022
In current power station boilers, fuel burns at a low temperature, which results in low exergy efficiency. This research combined the second law of t with the boiler structure to maximize the efficiency of a 350 MW power plant boiler. A three-dimensional
Hang Yin, Yingai Jin, Liang Li, Wenbo Lv
doaj   +1 more source

Sustainability Enhancement of a Biomass Boiler through Exergy Analysis

open access: yesProceedings, 2017
Investigations on exergy resources are important from the point of energy sustainability. In the presented study, an energy and exergy analysis of the operating biomass and natural gas boilers at the University of Idaho (UI) district energy plant is ...
Marc Compton, Behnaz Rezaie
doaj   +1 more source

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

Exergy analysis and economic estimate of a novel solar and gas combined system

open access: yesCase Studies in Thermal Engineering, 2021
In this paper, a novel parabolic-trough solar and gas combined (PSGC) system is proposed to explore a new potential utilization approach of solar energy. The working principle of this PSGC system is introduced.
Gang Wang   +3 more
doaj   +1 more source

EXERGY ANALYSIS OF DOUBLE-CIRCUIT FLAT SOLAR COLLECTOR WITH THERMOSYPHON CIRCULATION

open access: yesInformatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska, 2019
In the present work, an exergy analysis was done of two-circuit flat solar collector with thermosiphon circulation. The article presents a mathematical model of energy and exergic analysis of flat solar collectors, as well as calculations of solar ...
Waldemar Wójcik   +6 more
doaj   +1 more source

Do the Different Exergy Accounting Methodologies Provide Consistent or Contradictory Results? A Case Study with the Portuguese Agricultural, Forestry and Fisheries Sector

open access: yesEnergies, 2017
Three exergy accounting approaches are used to evaluate exergy efficiency: the Energy Resources Exergy Accounting (EREA), the Natural Resources’ Exergy Accounting (NREA) and the Extended Exergy Accounting (EEA).
Ricardo Manso   +2 more
doaj   +1 more source

Exergy Analysis of a Shell and Tube Energy Storage Unit with Different Inclination Angles

open access: yesEnergies, 2023
To optimize the utilization of solar energy in the latent heat thermal energy storage (LHTES) system, this study conducts exergy analysis on a paraffin-solar water shell and tube unit established in the literature to evaluate the effects of different ...
Li Peng   +3 more
doaj   +1 more source

From continuous to interruptible distillation: Flexible electric heating column architecture with fast start‐up

open access: yesAIChE Journal, EarlyView.
Abstract Electrification of distillation offers a promising route to reducing scope‐1 emissions from one of the chemical industry's most energy‐intensive unit operations. However, conventional adiabatic columns are dynamically inflexible: Long, energy‐intensive start‐ups make shutdown and restart impractical under variable electricity prices and ...
Samuel Mercer, Michael Baldea
wiley   +1 more source

Radiative Hybrid Nanofluid Flow Over a Porous Riga Surface: A Fuzzy–ANN Modeling Approach

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study proposes a fuzzy–ANN model to investigate the nonlinear thermal transport in a tangent hyperbolic (Tanh) hybrid nanofluid flow past a porous Riga surface, considering the effects of Rosseland diffusion, chemical reactions, and internal volumetric heating.
Azad Hussain, Rabia Zetoon, Reeha Iqbal
wiley   +1 more source

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