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Performance Evaluation Criteria of Heat Exchanger Tanks Based on the Analysis of Second Law of Thermodynamics

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Abstract (2. Language): 
The present paper investigates the fundamental thermodynamic laws and heat exchanger tank. It introduces the entropy and examines the second law of thermodynamic analysis for this type of exchanger. The methodology involves examining heat exchanger tank under different laboratory conditions including the power of heat element inside the tank, mass flow rate of cooling water of tank wall and the mixer speed inside the tank as variables. The data for the water temperature inside the tank and output water were obtained after cooling the tank wall. The entropy generation rate was then drawn and the optimal performance criteria of the heat exchanger tank and its optimal range were evaluated by minimization of entropy via the second law analysis. This was undertaken to increase the efficiency and decrease energy consumption. The results indicate that when the mass flow rate of input cold water, power of heat element and the mixer speed were respectively controlled in their possible minimum measures, the system tend to perform in optimal conditions according to the second law of thermodynamics.
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REFERENCES

References: 

[1] Bejan, A., 1982, "Second-law analysis in heat transfer and thermal design”, Adv. Heat Transfer" ,NO. 15.
[2] Bejan, A., 1982, "Entropy Generation through Heat and Fluid Flow",
wiley, New York.
[3] Bejan, A., 1995, "Entropy Generation Minimization",CRC Press, New York.
[4] yilmaz, M. , sara , O. and karsli, S., 2001, "performance evaluation criteria for heat exchangers based on second law analysis", Ataturk university, Turkey.
[5] Arif Hepbasli,2006, A key review on exergetic analysis and assessment of renewable energy resources for a sustainable future, Department of Mechanical Engineering, Faculty of Engineering, Ege University, TR-35100 Bornova, Izmir, Turkey.
[6] gong, M. and wall, g., 1997, "on exergetics economics and optimization of technical processes to meet environmental conditions", Chinese and American society engineers.
[7] naphon, P.,2006, "second law analysis on the heat transfer of the horizontal concentric tube heat exchangers ", Thailand.
[8] ozcelik, Y., 2007, "exergetic optimization of shell and tube heat exchangers using a genetic basedalgorithm, Ege university", Turkey.
[9] paniagua, I. and martin, J. , 2013, "A new simple method for estimating exergy destruction in heat exchangers", university politecnica de Madrid.
[10] Kakac, S. and Liu, H., 1997, "Heat Exchangers Selection Rating, and Thermal Design, CRC Press", New York.
[11] shukuya, M. , and hammeche, a., 2002, "introduction of the concept of exergy" , Yokohama .
[12] Zhu. X. Feng.X., 1997, Combined Pinch And Exergy Analysis For Process Modification, Applied Thermal Engineering, vol 17, pp 249-261.

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