Comparison analysis of four wind breaking designs for the hybrid cooling-tower-solar-chimney system under crosswind conditions

Abstract

A hybrid cooling-tower-solar-chimney system (HCTSC for short) is a novel heat rejection device that dissipates waste heat for coupled thermal power plant and generates electricity simultaneously. Since the heat exchanger bundles are vertically placed at the periphery of the solar collector, this novel natural dry cooling system is relatively vulnerable to the crosswind. In order to enhance its performance under the crosswind conditions, four types of counter-wind designs were proposed and numerically compared. Comparison results showed that all four wind breaking designs were indeed helpful for the improvement of the power output under high intensity crosswind condition but it is at the cost of its heat dissipation performance.