Thermodynamic analysis of solar power organic Rankine cycle based on experimental data

ABSTRACT

In the current work, analytical expressions have been coded in MATLAB 9.0 linked with REFPROP 9.0, for solar-powered ORC system integrated with conventional compound parabolic concentrator using environment-friendly hexane/R1234yf zeotropic mixture to calculate hourly (8 AM to 4 PM) combined performance of solar power ORC based on experimental data. It has been observed that maximum heat gain in the collector is 5.132 × 10⁵ W at 1 PM for the mass fraction (0.7/0.3). Moreover, maximum overall thermal efficiency 17.65% is attained at 1 PM for the mass fraction 0.3/0.7 whereas overall exergetic efficiency 49.23% is achieved at the same time for the mass fraction 0.3/0.7.

KEYWORDS:

• Conventional compound parabolic concentrator
• zeotropic mixture
• exergy

Disclosure statement

No potential conflict of interest was reported by the authors.