Comparison of the Energy Conversion Efficiency of a Solar Chimney and a Solar PV-Powered Fan for Ventilation Applications

被引：7
作者：
Klimes, Lubomir [1 ]
Charvat, Pavel [2 ]
Hejcik, Jiri [2 ]
机构：
[1] Brno Univ Technol, NETME Ctr, SPIL, Brno 61669, Czech Republic
[2] Brno Univ Technol, Fac Mech Engn, Energy Inst, Brno 61669, Czech Republic
来源：
ENERGIES | 2018年 / 11卷 / 04期
关键词：
building ventilation; solar energy; solar chimney; solar photovoltaics; DC fan; energy conversion; NATURAL VENTILATION; SYSTEM; PERFORMANCE; SIMULATION; BATTERY; CLIMATE; MOTOR; MODEL; FLOW; AIR;
D O I：
10.3390/en11040912
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
A study into the performance of a solar chimney and a solar photovoltaic (PV)-powered fan for ventilation applications was carried out using numerical simulations. The performance of the solar chimney was compared with that of a direct current (DC) fan powered by a solar PV panel. The comparison was carried out using the same area of the irradiated surface-the area of the solar absorber plate in the case of the solar chimney and the area of the solar panel in the case of the photovoltaic-powered fan. The two studied cases were compared under various solar radiation intensities of incident solar radiation. The results indicate that the PV-powered fans significantly outperform solar chimneys in terms of converting solar energy into the kinetic energy of air motion. Moreover, ventilation with PV-powered fans offers more flexibility in the arrangement of the ventilation system and also better control of the air flow rates in the case of battery storage.
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页数：15
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