Cost-exergy optimisation of linear Fresnel reflectors

Cost-exergy optimisation of linear Fresnel reflectors

This paper presents a new method for the optimisation of the mirror element spacing arrangement and operating temperature of linear Fresnel reflectors (LFR). The specific objective is to maximise available power output (i.e. exergy) and operational hours whilst minimising cost. The method is described in detail and compared to an existing design method prominent in the literature. Results are g...

Exergy Optimisation for Cascaded Thermal Storage

Cascaded thermal storage, consisting of multiple Phase Change Materials (PCMs) with different melting temperatures, has been proposed to solve the problem of poor heat transfer caused by unavoidable decrease of temperature differences during heat exchange process. This paper conducts a theoretical study of the overall thermal performance for a cascaded thermal storage system. Both heat transfer...

Exergy Optimization Applied to Linear Parabolic

A new method of optimization on linear parabolic solar collectors using exergy analysis is presented. A comprehensive mathematical modeling of thermal and optical performance is simulated and geometrical and thermodynamic parameters were assumed as optimization variables. By applying a derived expression for exergy efficiency, exergy losses were generated and the optimum design and operating co...

Non-linear Finite Element Analysis of CRTS Reflectors

This report presents a non linear nite element simulation of the assembly process of a collapsible rib tensioned surface CRTS re ector leading to estimates of its surface accuracy and prestress distribution In two previous reports in this series preliminary estimates had been obtained by a linearised formulation hence the main aim of the present study is to access the accuracy of estimates base...

Cost/Risk Optimisation (C/RO)