The heater (or acceptor) of a Stirling engine, where most of the thermal energy is accepted into the engine by heat transfer, is the hottest part of the engine. Almost as hot is the adjacent expansion space of the engine. In the expansion space, the flow is oscillatory, impinging on a two-dimensional concavely-curved surface. Knowing the heat transfer on the inside surface of the engine head is critical to the engine design for efficiency and reliability. However, the flow in this region is not well understood and support is required to develop the CFD codes needed to design modern Stirling engines of high efficiency and power output. The present project is to experimentally investigate the flow and heat transfer in the heater head region. Flow fields and heat transfer coefficients are measured to characterize the oscillatory flow as well as to supply experimental validation for the CFD Stirling engine design codes. Presented also is a discussion of how these results might be used for heater head and acceptor region design calculations.

1.
Adolfson, D. A., Simon, T. W., Ibrahim, M. B., and Gedeon, D., 2002, “Measurements in Oscillatory Flows with Separation in Support of Stirling Engine Model Development,” IECEC 2002 Paper No. 20142, 2002 IECEC Conf., Washington D.C.
2.
Adolfson, D. A., Simon, T. W., Ibrahim, M. B., and Gedeon, D., 2003, “Unsteady Fluid Dynamics Simulation of a Stirling Engine Heater Head,” Paper # AIAA-2003–5934, 2003 IECEC Conf., Portsmouth VA.
3.
Adolfson, D. A., Simon, T. W., and Ibrahim, M. B., 2004, “Measurements, Computation and Analysis of a Semi-Constrained, Axi-symmetric Jet,” ASME GT2004–54215, Presented at the 2004 Int’l. Gas Turbine Conference, Vienna, Austria.
4.
Eckert
E. R. G.
,
1984
, “
Analysis of Film Cooling and Full-Coverage Film Cooling of Gas Turbine Blades, “
ASME J. Eng. Gas Turbines Power
, Vol.
106
, pp.
206
213
.
5.
Gilard, V. and Brizzi, L., 2005, “Slot Jet Impinging on a Concave Curved Wall,” Journal of Fluids Engineering, May 2005, Vol. 127.
6.
Gedeon, D., 1999, “Sage User Manual,” 3rd ed., Gedeon Associates, 16922 South Canaan Road, Athens, OH, 45701, USA.
This content is only available via PDF.
You do not currently have access to this content.