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Keywords: exergy
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Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. August 2023, 145(8): 082701.
Paper No: HT-22-1538
Published Online: April 11, 2023
...K. Kiran Kumar; Banjara Kotresha; Kishan Naik The intention of this paper is to present the numerical analysis of thermal performance and exergy transfer through high porosity metal foams filled partially in a horizontal pipe. The heater is embedded in the pipe's circumference and is assigned...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. December 2020, 142(12): 122101.
Paper No: HT-20-1096
Published Online: October 7, 2020
... consumption entering the power plant. This paper investigates a variety of metrics for comparing the energy and exergy consumption attributable to desalination in coproduction plants. Previous results have shown that reverse osmosis (RO) is approximately twice as efficient as multiple effect distillation (MED...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. January 2019, 141(1): 011801.
Paper No: HT-18-1149
Published Online: October 8, 2018
... , “ Thermodynamic Optimization of Geometry in Engineering Flow Systems ,” Exergy Int. J. , 1 ( 4 ), pp. 269 – 277 . 10.1016/S1164-0235(01)00028-0 [6] London , A. L. , and Shah , R. K. , 1983 , “ Cost of Irreversibilities in Heat Exchanger Design ,” Heat Transfer Eng. , 4 ( 2 ), pp. 59 – 73...
Journal Articles
Publisher: ASME
Article Type: Discussions
J. Heat Mass Transfer. April 2014, 136(4): 045501.
Paper No: HT-13-1403
Published Online: February 18, 2014
...? entransy entropy exergy The science of thermodynamics as part of the physics nowadays is well established, based on four principle laws (numbered 0–3), and widely accepted as one of the fundamental sciences. Historically, there was some confusion with respect to “heat” as a thermodynamic...
Journal Articles
Publisher: ASME
Article Type: Technical Briefs
J. Heat Mass Transfer. April 2011, 133(4): 044503.
Published Online: January 13, 2011
...Isak Kotcioglu; Ahmet Cansiz In this study, a cross-flow heat recovery-exchanger system operating with unmixed fluids was manufactured and tested. The thermodynamic analysis of the system was presented via determining the variations of exergy loss with Reynolds number. The analysis also included...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. February 2011, 133(2): 021801.
Published Online: November 3, 2010
... cost is derived for the Pareto curve. In addition, optimization of heat exchangers based on considering exergy destruction revealed that irreversibilities, such as pressure drop and high temperature difference between cold and hot streams, play a key issue in exergy destruction. Thus, more efficient...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. November 2010, 132(11): 111802.
Published Online: August 13, 2010
...Ahmad Fakheri This paper further explores the topic of an ideal heat exchanger, which is still an open question. It is shown that the minimization of entropy production or exergy destruction should not be an objective in heat exchanger design. It is further proven that heat exchanger effectiveness...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. October 2010, 132(10): 101802.
Published Online: July 29, 2010
...Haydar Eren; Nevin Celik; Irfan Kurtbas; Seyba Yildiz In this study, to obtain definitive information about the effects of spring-type turbulators located in the inner pipe of a concentric heat exchanger, the rates of exergy transfer Nusselt number ( Nu e ) and exergy loss ( E ∗ ) were obtained...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. January 2010, 132(1): 011802.
Published Online: October 30, 2009
... optimal less conservative fouling factors. The objective took account of exergy consumption expense and heat exchanger capital cost at the same time. The exergy consumption of heat transfer in HENs was calculated using subsection integral on balanced composite curves. The proposed method was applied...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. August 2009, 131(8): 082301.
Published Online: June 5, 2009
... temperature and flow rate as well as the reference temperatures are investigated, and the resulting solidification and melting times, energy efficiencies, and exergy efficiencies are documented. Using ANSYS GAMBIT and FLUENT 6.0 softwares, all geometries are created, and the appropriate boundary and initial...
Journal Articles
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. February 2008, 130(2): 021401.
Published Online: February 4, 2008
... on temperature inside the data center, and therefore fail to provide adequate information regarding the energy efficiency of the thermal infrastructure. This paper addresses this limitation through an exergy analysis of the data center thermal management system. The approach recognizes that the mixing of hot...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. December 2005, 127(12): 1322–1333.
Published Online: July 25, 2005
...S. K. Som; S. S. Mondal; S. K. Dash A theoretical model of exergy balance, based on availability transfer and flow availability, in the process of pulverized coal combustion in a tubular air-coal combustor has been developed to evaluate the total thermodynamic irreversibility and second law...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Heat Mass Transfer. October 2002, 124(5): 828–836.
Published Online: September 11, 2002
...S. K. Som; N. Y. Sharma A theoretical model of exergy balance based on availability transfer and flow availability in the process of spray combustion in a gas turbine combustor has been developed to evaluate the total thermodynamic irreversibility and second law efficiency of the process at various...