태양 복사에너지 충진재 변화에 따른 고온 태양열 공기식 흡수기의 열전달 성능 해석
Heat transfer performance with different fills as volumetric air receivers for concentrated solar radiative energy
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Abstract
The heat transfer characteristics of solar tower receivers are experimentally investigated with receiver shapes. Generally, these become different according to the shapes and materials of the volumetric air receiver. In order to study these effects, the apparatus adopting laminated mesh and honeycombs as the volumetric air receiver is proposed. The receiver consists of laminated mesh (diameter; 100 ㎜, thickness; 1 ㎜), honeycombs (diameter; 100 ㎜, thickness; 30 ㎜)inserted into ceramic tube (inside diameter; 100 ㎜, outside diameter; 120 ㎜, length: 1000 ㎜). To apply heat to the receiver, an electric heater is used. To find out the heat transfer characteristics of the laminated mesh, the air temperatures are obtained by installing 3 thermocouples on each layer, dividing ceramic tube into 4 layers. Also, a radiative shield is installed to measure the only air temperature. The data for laminated mesh and honeycomb thickness of 30, 60, 90 mm are obtained. The results show that the temperature of layer 3 is higher than those of layer 2 and layer 1.
참고문헌 (5)
- Solucar energia S. A, "11MW power plant for southern spain (PS10)" (2001)
- Peter Heller, "Test and evaluationofa solar powered gas turbine system", pp.1225~1230 (2006)
- W. Lu, "Thermal analysis on metal-foam filled heat exchangers. Part I: Metal-foam filled pipes", 49(15-16), pp.2751~2761 (2006)
- Thomas Fend, "Porous materials as open volumetric solar receivers: Experimental determination of therm ophysical and heat transfer properties", 29(5-6), pp.823~833 (2004)
- Reiner Buck, "Dual receiver concept for solar towers", 80(10), pp.1249~1254 (2004)