Numerical modeling of liquid cooled CCTWT collector

Abstract

This paper discusses effect of design parameters of liquid cooled CCTWT collector on its thermal performance. Design parameters like collector thickness, cooling channel aspect ratio, Coolant flow rate, channel width, channel height, fin width and number of channels are used to derive analytical model and demonstrate effect of individual parameter on Collector thermal performance. This Analytical model demonstrates approaches to increase thermal performance of collector and bring down total thermal resistance and pressure drop of collector. Nusselt number, Reynolds number and Heat transfer coefficient are used to indicate individual channel performance, while total thermal resistance and pressure drop are used for collector thermal performance.