A Feasibility Study of Carbon-dioxide Based Rankine Cycle Powered by the Linear Fresnel Reflector Solar Concentrator System
DOI:
https://doi.org/10.13052/dgaej2156-3306.3333Keywords:
Linear Fresnel reflector solar concentrator, supercritical car- bon dioxide, Rankine cycle, power generation and heat output.Abstract
Theoretical analysis of a linear Fresnel reflector solar concentrator
powered Rankine thermodynamic cycle utilizing supercritical C0 2 as a
working fluid is presented. The system model consists of a linear Fresnel
reflector solar concentrator with trapezoidal cavity absorber, a power
generating turbine, a heat recovery system and a feed pump. The effects
of the principal parameters of the supercritical C0 2 on the performance
of the system are investigated numerically by means of MATLAB simu-
lation program under the assumed design conditions. It is shown that
the key performance parameters, such as concentrator area, concentrat-
ed power reached to the absorber, C0 2 flow rate have significant effects
on the thermal performance of the supercritical C0 2 in the trapezoidal
cavity absorber. Analytical simulations show that the proposed system
may have 0.3-0.38 kW power generation and 2.0-2.14 kW heat output for
the various mass flow rates of the C0 2. The results recommend the po-
tential of this new system for applications to electricity power and heat
power generation.
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