Abstract
A general model for an irreversible solar-driven Brayton multi-step heat engine is presented. The model incorporates a regenerator, an arbitrary number of turbines (Nt) and compressors (Nc) and the corresponding reheating and intercooling processes; thus the solar-driven Ericsson cycle is a particular case where Nt;Nc ! 1. For the solar collector we assume linear heat losses and for the Brayton multi-step cycle irreversibilities arising from the non-ideal behavior of turbines and compressors, pressure drops in the heat input and heat release, heat leakage through the plant to the surroundings, and non-ideal couplings of the working uid with the external heat reservoirs. We obtain the collector temperatures at which maximum overall eciency max is reached as a function of the thermal plant pressure ratio and a detailed comparison for several plant congurations is given.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.