An Open Source Exergy Calculator Tool

Montelongo-Luna, Juan M; Young, Brent R.; Svrcek, William Y.

doi:10.24908/pceea.v0i0.3960

Cited by 3 publications

(2 citation statements)

References 8 publications

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“…There are two main ways to calculate exergy. One divides exergy into physical and chemical components (Montelongo-Luna et al, 2005) and the other considers exergy as being composed of three components, namely physical exergy, chemical exergy and exergy change of mixing (Hinderink et al, 1996;Bejan et al, 1996). For the present work, we will consider only the physical part of exergy due to the no departure of chemical substances from the cycle to the environment.…”

Section: Exergy Analysismentioning

confidence: 98%

Investigation of various feed conditions on NGL recovery plant energy and exergy performance: A case study

Tahmasebi

Abbasabadi

Ghasemi

et al. 2015

Journal of Natural Gas Science and Engineering

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Section: Exergy Analysismentioning

confidence: 98%

Investigation of various feed conditions on NGL recovery plant energy and exergy performance: A case study

Tahmasebi

Abbasabadi

Ghasemi

et al. 2015

Journal of Natural Gas Science and Engineering

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“…Geometrical changes in the heat exchanger can improve exergy efficiency, which means using a different types of heat exchangers (shell & tube, double tube), using nanofluids to exchange heat [33], [48], [49]. Maddah et al [50] were experimented to prepare modified twisted type tapes for heat exchangers by using turbulent nanofluid (SiO2-water) [51].…”

Section: Heat Exchanger/evaporatormentioning

confidence: 99%

A review on efficiency improvement methods in organic Rankine cycle system: an exergy approach

Raju

Rao

2022

IJAAS

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<span>Exergy, one of the handed-down energy conservation techniques, which can obtain from thermodynamic laws (first and second), will disclose the work presented within the system, the amount of irreversibility as well as what are the possible ways to reduce inefficiencies in the system. This discourse mainly highlighted various techniques and possible methods for efficiency improvement in the organic Rankine cycle (ORC). That means mainly concentrated on following key parameters like the selection of working fluid, suitable expander, the different heat source of an evaporator, and modifications in heat exchanger based on the application of ORC system through an exergy approach for better performance, decrease energy losses, and destruction rate. This review can help to pontificate for better-summarized results that were done before and suggested some ideas for how to select an optimized parameter for better efficiency and to decrease the destruction rate in the ORC system. </span>

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Simplified logistics model and its application in process simulation

Chen

Guan-liang

Bai³

2021

THERM SCI

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In order to solve the problem of complex calculation of logistics value in process simulation, based on the parameter characteristics of Aspen Plus, a simplified logistics calculation model is proposed. The comparison with exercom shows that the error of the calculation results in this paper is less than 1%, which verifies the correctness of the model. The calculation model of logistics flow provides convenience for process simulation software Aspen Plus to analyze the simulation process. Based on the logistics calculation model and the "fuel cost" model of thermal economics, a coal-fired boiler of a domestic unit is analyzed. The results show that the heat loss of the boiler mainly occurs in the process of coal decomposition and combustion, followed by the heat exchange process between flue gas and main heat exchange surface. The overall efficiency of the boiler is 46.4%.

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An Open Source Exergy Calculator Tool

Cited by 3 publications

References 8 publications

Investigation of various feed conditions on NGL recovery plant energy and exergy performance: A case study

Investigation of various feed conditions on NGL recovery plant energy and exergy performance: A case study

A review on efficiency improvement methods in organic Rankine cycle system: an exergy approach

Simplified logistics model and its application in process simulation

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