CAJ | 학술논문

太阳能吸热器是塔式光热太阳能发电系统中最重要的设备之一，吸热器内吸热管、吸热管与母管连接处都是热应力产生的集中点，文中对吸热器这几个部位进行热应力分析，通过数值模拟得出不同弯头热应力随温度的变化情况，以及熔盐温差是影响热应力分布的主要因素。
태양능흡열기시탑식광열태양능발전계통중최중요적설비지일，흡열기내흡열관、흡열관여모관련접처도시열응력산생적집중점，문중대흡열기저궤개부위진행열응력분석，통과수치모의득출불동만두열응력수온도적변화정황，이급용염온차시영향열응력분포적주요인소。
Solar energy heat absorber is one of the most important equipment in tower thermal solar energy systems ,the heat pipe and the joint of heat pipe and mother tube are the thermal stress concentration. This paper analyze thermal stress of these parts in heat absorber. Numerical simulation is used to get the change of the thermal stress of different bend with the temperature change. The results prove that the temperature difference of molten salt is the main factor which influences the thermal stress distribution can be got.