Volume 18, Issue 5 (2018)                   Modares Mechanical Engineering 2018, 18(5): 1-12 | Back to browse issues page

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Hadian fard F, Omidvar A, Naserian M. Study on the effect of heat sinks layout and air flow pattern through the fins on thermal performance of thermoelectric air-handling units. Modares Mechanical Engineering. 2018; 18 (5) :1-12
URL: http://journals.modares.ac.ir/article-15-16076-en.html
1- Department of Mechanical and Aerospace Engineering, Shiraz University of Technology
2- Shiraz University of Technology
Abstract:   (709 Views)
In a thermoelectric air-handling unit, a number of thermoelectric modules with forced convection heat sinks are used. In this research, it is tried to investigate the effect of module arrangement and air flow pattern on thermal performance of the system. For this purpose, the thermal performance of an air-handling unit including four thermoelectric modules with three different heat sinks layouts; parallel, series with unidirectional flow and series with counter flow were compared. The entropy analysis has been used to study the thermal performance and pressure drop imposed on the system. In addition, the effect of the electric current applied to the modules and the hot and cold air flows on the coefficient of performance of the system has been studied for three different layouts. Results indicated that, heat sinks layout and air flow pattern through the fins have significant effects on the thermal performance of a thermoelectric air-handling unit. The coefficient of performance for cooling and heating in the series arrangement are 1.4 and 1.1 times of those in parallel arrangement, respectively. The results of the entropy analysis showed that although the pressure drop imposed on the system in the layout of the series is greater than the parallel arrangement, this cannot reduce the advantage of using the series layout.
Full-Text [PDF 5371 kb]   (235 Downloads)    
Article Type: Research Article |
Received: 2018/01/16 | Accepted: 2018/02/26 | Published: 2018/09/24

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