TY - JOUR
T1 - Reducing convective heat losses in solar dish cavity receivers through a modified air-curtain system
AU - Yang, S.
AU - Wang, J.
AU - Lund, P.D.
AU - Wang, S.
AU - Jiang, C.
PY - 2018/5/15
Y1 - 2018/5/15
N2 - Here we propose a forced air circulation system to reduce the convective heat loss across the aperture of a dish concentrator. The function of the proposed system was validated with computational fluid dynamics (CFD) simulations. Compared to a concentrator without such a system, the modified solar dish cavity receiver could clearly reduce the convective heat loss and its fluctuation in the receiver. In the best case studied, the convective heat losses could be suppressed by up to 58%. In addition, two types of air circulation modes (clockwise and anticlockwise) were compared, showing that the anticlockwise mode yields better performance.
AB - Here we propose a forced air circulation system to reduce the convective heat loss across the aperture of a dish concentrator. The function of the proposed system was validated with computational fluid dynamics (CFD) simulations. Compared to a concentrator without such a system, the modified solar dish cavity receiver could clearly reduce the convective heat loss and its fluctuation in the receiver. In the best case studied, the convective heat losses could be suppressed by up to 58%. In addition, two types of air circulation modes (clockwise and anticlockwise) were compared, showing that the anticlockwise mode yields better performance.
UR - http://www.scopus.com/inward/record.url?eid=2-s2.0-85044161391&partnerID=MN8TOARS
U2 - 10.1016/j.solener.2018.03.027
DO - 10.1016/j.solener.2018.03.027
M3 - Article
SN - 0038-092X
VL - 166
SP - 50
EP - 58
JO - Solar Energy
JF - Solar Energy
ER -