Affiliation:
1. Division of Heat Transfer, Lund Institute of Technology, Box 118, 22100 Lund, Sweden
Abstract
To achieve high thermal efficiencies, 30 percent and higher, for small gas turbines a recuperator is mandatory. As the recuperator represents 25–30 percent of the overall machine cost, efforts are now being focused on establishing new low-cost recuperator concepts for gas turbine engines. In this paper the cross corrugated (CC), also called chevron pattern, heat transfer surface is reviewed to assess its thermal and hydraulic performance and compare it to some other candidate surfaces for a 50 kW microturbine. The surfaces may be categorized into three primary surface types and one plate-fin type. Design calculations of a recuperator heat transfer matrix using these surfaces enable direct comparison of the recuperator matrix volumes, weights and dimensions. It is concluded that the CC surface has great potential for use in recuperators of the future.
Subject
Mechanical Engineering,Energy Engineering and Power Technology,Aerospace Engineering,Fuel Technology,Nuclear Energy and Engineering
Reference32 articles.
1. McDonald, C. F., 2000, “Low Cost Recuperator Concept For Microturbine Applications,” ASME Paper 2000-GT-167.
2. Oswald, J. I., Dawson, D. A., and Clawley, L. E., 1999, “A New Durable Gas Turbine Recuperator,” ASME Paper 99-GT-369.
3. Antoine, H., 1997, “Echangeur de Chaleur Spirale,” European Patent EP 0798527 B1.
4. Utriainen, E., and Sunde´n, B., 2001, “A Comparison of Some Heat Transfer Surfaces for Small Gas Turbine Recuperators,” ASME Paper 2001-GT-0474.
5. Webb, R. L., 1994, Principles of Enhanced Heat Transfer, John Wiley and Sons, New York.
Cited by
64 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献