Finding optimal operating conditions of solar-based power and cooling systems is always a challenge. Performance of these systems is highly dependent on several important parameters, which influence not only the long-term efficiency but also its technical and economic feasibility. This paper studies the operation/configuration problem of an ammonia–water power and cooling cycle using an exergetic and statistical analysis. The Modeling developed in Matlab® and REFPROP 9.0 was used to calculate the thermodynamic properties of the ammonia–water mixture. The thermodynamic model and properties of the ammonia/water mixture were validated with previous models found in the literature. Optimal operating conditions of the combined cycle were obtained by using response surface technique and the ratio between exergetic efficiency and exergy destruction was used as response variable. The results showed that the response variable is highly influenced by the ammonia concentration, pressure ratio (PR), turbine efficiency, and pinch point temperature in the heat exchanger. Finally, the combined cycle was integrated with a solar field using two types of concentrated solar collectors.
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March 2017
Research-Article
Response Surface Optimization of an Ammonia–Water Combined Power/Cooling Cycle Based on Exergetic Analysis
Jesús M. García,
Jesús M. García
Department of Mechanical Engineering,
Universidad del Norte,
Barranquilla, Colombia
e-mail: jesusmg@uninorte.edu.co
Universidad del Norte,
Barranquilla, Colombia
e-mail: jesusmg@uninorte.edu.co
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Ricardo Vasquez Padilla,
Ricardo Vasquez Padilla
School of Environment, Science
and Engineering,
Southern Cross University,
Lismore, New South Wales 2480, Australia
e-mail: ricardo.vasquez.padilla@scu.edu.au
and Engineering,
Southern Cross University,
Lismore, New South Wales 2480, Australia
e-mail: ricardo.vasquez.padilla@scu.edu.au
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Marco E. Sanjuan
Marco E. Sanjuan
Department of Mechanical Engineering,
Universidad del Norte,
Barranquilla, Colombia
e-mail: msanjuan@uninorte.edu.co
Universidad del Norte,
Barranquilla, Colombia
e-mail: msanjuan@uninorte.edu.co
Search for other works by this author on:
Jesús M. García
Department of Mechanical Engineering,
Universidad del Norte,
Barranquilla, Colombia
e-mail: jesusmg@uninorte.edu.co
Universidad del Norte,
Barranquilla, Colombia
e-mail: jesusmg@uninorte.edu.co
Ricardo Vasquez Padilla
School of Environment, Science
and Engineering,
Southern Cross University,
Lismore, New South Wales 2480, Australia
e-mail: ricardo.vasquez.padilla@scu.edu.au
and Engineering,
Southern Cross University,
Lismore, New South Wales 2480, Australia
e-mail: ricardo.vasquez.padilla@scu.edu.au
Marco E. Sanjuan
Department of Mechanical Engineering,
Universidad del Norte,
Barranquilla, Colombia
e-mail: msanjuan@uninorte.edu.co
Universidad del Norte,
Barranquilla, Colombia
e-mail: msanjuan@uninorte.edu.co
1Corresponding author.
Contributed by the Advanced Energy Systems Division of ASME for publication in the JOURNAL OF ENERGY RESOURCES TECHNOLOGY. Manuscript received January 28, 2016; final manuscript received June 21, 2016; published online July 12, 2016. Editor: Hameed Metghalchi.
J. Energy Resour. Technol. Mar 2017, 139(2): 022001 (9 pages)
Published Online: July 12, 2016
Article history
Received:
January 28, 2016
Revised:
June 21, 2016
Citation
García, J. M., Vasquez Padilla, R., and Sanjuan, M. E. (July 12, 2016). "Response Surface Optimization of an Ammonia–Water Combined Power/Cooling Cycle Based on Exergetic Analysis." ASME. J. Energy Resour. Technol. March 2017; 139(2): 022001. https://doi.org/10.1115/1.4034025
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