نتایج جستجو برای: exergy destruction

تعداد نتایج: 38634  

2012
Yang Hu Volker Hartkopf Laura Schaefer Vivian Loftness Yousheng Hu Ying Hu

.............................................................................................................................. i List of Figures ................................................................................................................... vi List of Tables .................................................................................................................... i...

2012
Ligang Wang Yongping Yang Tatiana Morosuk George Tsatsaronis

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. By splitting the exergy destruction into endogenous/exogenous and avoidable/unavoidable parts, the advanced exergy analysis is capable of providing additional information to c...

2012
Fahad A. Al-Sulaiman G. Prakash Narayan John H. Lienhard

In this study, exergy analysis of a novel desalination system is presented and discussed. The water desalination is carried out using combined humidification-dehumidification and reverse osmosis technologies. Six system performance parameters are examined: overall exergetic efficiency, equivalent electricity consumption, specific exergy destruction, specific exergy lost, and total true specific...

2010
Antun GALOVIĆ Marija ŽIVIĆ

Preliminary note This paper presents the exergy destruction of an evaporator or a condenser or evaporator and condenser. The exergy destruction can be analytically calculated by using the same non-dimensional variables which have been used by its energy analysis. The one additional variable is the ratio of absolute input temperatures of both streams. This means that the given model enables the ...

Journal: :Entropy 2017
Andrew Lake Behanz Rezaie Steven Beyerlein

Absorption chillers present opportunities to utilize sustainable fuels in the production of chilled water. An assessment of the steam driven absorption chiller at the University of Idaho, was performed to quantify the current exergy destruction rates. Measurements of external processes and flows were used to create a mathematical model. Using engineering equation solver to analyze and identify ...

Journal: :gas processing 0
mohammad-hossein hamedi kntoosi university of technology, tehran, iran, reza shirmohammadi south tehran branch, islamic azad university, tehran, iran bahram ghorbani kntoosi university of technology, tehran, iran, soheil sheikhi kntoosi university of technology, tehran, iran,

advanced exergy analysis is a tool to split the exergy destruction of the system to achieve a better perspective about the potentials of a system for improvements. in addition, the component interactions and their exergy destruction dependency with the other equipment are investigated through the advanced exergy analysis. for this purpose, it divides the exergy destruction calculated by convent...

Journal: :Entropy 2016
Ke-Ying Liao Yew Khoy Chuah

The necessity of air-conditioning causes the enormous energy use of underground train stations. Exergy and thermoeconomic analysis is applied to the annual operation of the air-conditioning system of a large underground train station in Taiwan. The current installation and the monitored data are taken to be the base case, which is then compared to three different optimized designs. The total re...

2014
Rajinder Pal Enrico Sciubba

Exergy destruction in adiabatic pipeline flow of surfactant-stabilized oil-in-water emulsions is investigated in five different diameter pipes. The dispersed-phase (oil droplets) concentration of the emulsions is varied from 0% to 55.14% vol. The emulsions are Newtonian in that the viscosity is independent of the shear rate. For a given emulsion and pipe diameter, the exergy destruction rate pe...

2011
D. P. S Abam N. N. Moses

The current research is aimed at carrying out an exergy analysis of a 33-MW gas turbine power plant that operates on the Brayton cycle. Quantitative exergy analysis for each component and for the whole system was done. Based on the exergy balance models developed, a computer program is written which is used to investigate the performance of the power plant under varying ambient and turbine inle...

Hojat Ansarinasab Mahmoud Afshar, Mehdi Mehrpooya,

In this paper, exergy and exergoeconomic analysis is performed on the recently proposed process forthe coproduction of liquefied natural gas (LNG) and natural gas liquids (NGL) based on the mixedfluid cascade (MFC) refrigeration systems, as one of the most important and popular natural gasliquefaction processes. To carry out this analysis, at first, the proposed process is sim...

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