Browse > Article
http://dx.doi.org/10.3795/KSME-B.2017.41.8.545

Effects of Novel Fin Shape of High Temperature Heat Exchanger on 1 kW Class Stirling Engine  

Ahn, Joon (School of Mechanical Engineering, Kookmin Univ.)
Kim, Seok Yeon (School of Mechanical Engineering, Kookmin Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.41, no.8, 2017 , pp. 545-552 More about this Journal
Abstract
In this research, numerical analysis was carried out on novel and existing fins, adjusted in terms of factors such as length, spacing, and angle, of a high-temperature heat exchanger for a 1 kW class Stirling engine, designed as a prime mover for a domestic cogeneration system. The performance improvement as a result of shape optimization was confirmed with numerical analysis by including the air preheater, which was not considered during optimization. However, a negative heat flux was observed in the cylinder head portion. This phenomenon was clarified by analyzing the exhaust gas and wall surface temperature of the combustion chamber. Furthermore, assuming an ideal cycle, the effects of heat transfer enhancement on the thermodynamic cycle and system performance were predicted.
Keywords
Heat Exchanger; Stirling Engine; CFD(Computational Fluid Dynamics);
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
1 Kuhn V., Klemens, J. and Bulatov, I., 2008, "Micro CHP: Overview of Selected Technologies, Products and Field Test Results," Applied Thermal Eng., Vol. 28, pp. 2039-2048.   DOI
2 Kang, B. H., Yun, C. H. and Ahn, J., 2013, "Impact of Residential CHP Systems on Greenhouse Gas Emissions in Korea," Korean J. Air- Cond. Refrig., Vol. 25, pp. 555-561.
3 Thomas, B., 2008, "Benchmark Testing of Micro-CHP Units," Applied Thermal Eng., Vol. 28, pp. 2049-2054.   DOI
4 Peacock, A. D. and Newbrough, M., 2005, "Impact of Micro-CHP Systems on Domestic Sector $CO_2$ Emissions," Applied Thermal Energy, Vol. 25, pp. 2653-2676.   DOI
5 Voorspools, K. R. and D'haeseleer, W. D., 2002, "The Evaluation of Small Cogeneration for Residential Heating," Int. J. Energy Research, Vol. 26, pp. 1175-1190.   DOI
6 De Paepe, M., D'Herdt, P. and Mertens, D., 2006, "Micro-CHP Systems for Residential Applications," Energy Conversion and Management, Vol. 47, pp. 3435-3446.   DOI
7 Thombare, D. G. and Verma, S. K., 2008, "Technological Development in the Stirling Cycle Engines," Renewable and Sustainable Energy Reviews, Vol. 12, pp. 1-38.   DOI
8 Mujeebu, M. A., Abdullah, M. Z., Barkar, M. Z. A., Mohamad, A. A. and Abdullah, M. K., 2009, "Applications of Porous Media Combustion Technology: a Review," Applied Energy, Vol. 86, pp. 1365-1375.   DOI
9 Kang, S. H., Kim, H. J. and Chung, D. H., 2011, "Numerical Analysis to Design High Temperature Heat Exchanger of Beta Type Stirling Engine in 3-D Combustion Field," Trans. KSCFE, Vol. 16, pp. 55-61.   DOI
10 Kim, H. J., Lee, Y. S. and Ahn, J., 2013, "Combustion Simulation of 1kW Class LNG Stirling Engine CHP System Considering Heat Recovery," Int. J. Air-Cond. Refrig., Vol. 21, pp. 1350007.   DOI
11 Ahn, J. and Kim, S.Y., 2016, "Performance of Novel High Temperature Heat Exchanger for 1 kW Class Stirling Engine Considering Heat Recovery," Int. J. Air-Cond. Refrig., Vol. 24, No. 1, 1650007.   DOI
12 Ahn, J., Lee, Y. S. and Kim, H. J., 2011, "CFD Study on the Combustion Chamber of a 1 kW Class Stirling Engine," Trans. KSCFE, Vol. 16, pp. 88-94.
13 Ahn, J., Lee, Y. S. and Kim, H. J., 2012, "Combustion Characteristics of a Premixed Burner in a Stirling Engine for a Domestic Cogeneration System," Trans. Korean Soc. Mech. Eng. B, Vol. 36, pp. 211-216.
14 Hong, Y.-J., Ko, J.-S. and Park, S.-J., 2009, "The Cycle Analysis of the 1 kW Class Free- Piston Stirling Engine for Micro CHP," Proc. KSME Fall Annual Meeting, pp. 1872-1876.