TY - JOUR
TI - Daily performance of a solar dish collector
AU - Pavlović Saša R
AU - Stefanović Velimir P
AU - Janković Žarko M
AU - Bellos Evangelos A
AU - Vasiljević Darko M
JN - Thermal Science
PY - 2019
VL - 23
IS - 3
SP - 2107
EP - 2115
PT - Article
AB - Solar energy exploitation is one of the most promising techniques for achieving the sustainability in the energy domain. The objective of this work is to investigate the daily performance of a solar dish collector under different operating temperature levels. A solar dish collector with 10.28 m2 aperture and a spiral coil absorber is investigated. The analysis is performed with a developed numerical model in engineering equation solver which has been validated with experimental results. The analysis proved that the daily thermal efficiency of the collector is ranged from 67.36% to 54.65% for inlet temperatures from 50°C to 350°C, respectively. On the other hand, the exergy efficiency presents an increasing rate of the inlet tem¬perature and it is found to be ranged from 8.77% up to 31.07% for the respective temperatures. The daily exergy production of the collector can reach up to 26 kWh with a respective thermal production of 50 kWh for inlet temperature equal to 350°C. The results of this work can be exploited for the suitable evaluation of the solar dish collector on a daily basis.