Open AccessExergoeconomic optimization and sensitivity analysis of a commercial parabolic trough collector for the climate of Tehran, Iran
Author(s) -
Hoseinzadeh Hamed,
Kasaeian Alibakhsh,
Shafii Mohammad Behshad
Publication year - 2019
Publication title -
energy science and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.638
H-Index - 29
ISSN - 2050-0505
DOI - 10.1002/ese3.472
Subject(s) - parabolic trough , exergy , exergy efficiency , sensitivity (control systems) , inlet , thermal , environmental science , uncertainty analysis , environmental engineering , nuclear engineering , engineering , process engineering , mechanical engineering , simulation , meteorology , electronic engineering , physics
Abstract The exergoeconomic analysis is a powerful tool to study an energy system and provide rational decision‐making for it. This paper is aimed at exergoeconomic optimization and sensitivity analysis evaluation of the results of a commercial parabolic trough collector (PTC). First, an analysis of optical, thermal, exergy, and economic equations of the PTC system is presented. Then, the objective function and variables are optimized through MATLAB software using the hybrid algorithm code. The objective function as the exergy loss rate is a combination of exergy loss and system cost. The evaluation of the results has been carried out considering the radiation intensity in different months of the year for Tehran, Iran. The commercial parabolic trough solar collector has been selected as the case study. Sensitivity analysis of exergy loss rate and exergy efficiency was conducted for important variables, namely collector length, the glass cover diameter, the outer diameter of absorber tube, the inner diameter of absorber, the fluid inlet temperature, the receiver aperture width, and fluid flow rate. The obtained results show that the exergy loss rate is 0.1905 kW/$, and the exergy efficiency is equal to 15.2% for the highest direct solar radiation of 674 W/m 2 .