Small Scale Solar-Driven CHP System Pre-Dimensioning Sensitiveness to Solar Field and ORC Power Block Components Efficiencies

Horta, Pedro, Álvarez-Prieto, José M., Abdellatif, Ghennioui, Brouwer, Jaap, Frej, Hicham, Lalami, Souad, El Ghali, Bennouna, Soares, João, Saraiva, Carlos, Oliveira, Armando

EuroSun 2014 · Aix-le-Bains, France · 2014-09-16
Published by International Solar Energy Society (ISES)
DOI: 10.18086/eurosun.2014.12.02

Abstract

Within the framework of REELCOOP project, a small scale (10 kWe) solar driven Combined Heat and Power system is being developed and constructed. Using a thermal storage and hybridized with biomass, the system core relies on solar collectors and on a ORC power block under development within the project. The present article addresses a sensitiveness analysis to the overall system design as a function of solar collector and power block components efficiencies. This analysis takes into account a tentative range for such efficiency values as well as design operation conditions on the chosen location for the final installation: Benguerir (Morocco). Not disregarding further developments of the system model, accounting for variable efficiency conditions and enabling the study of different operation/control strategies, the pre-design results already point some relevant aspects to be accounted for at both component and system development levels, namelly the relation between thermal and optical performance of solar collectors, the impact of expander efficiency in overall power block and system performance.

Keywords

Solar-driven orc, Small scale chp.

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