CAJ | 학술논문

在黑体概念的基础上，设计了1种新型太阳能腔体集热器，并进行了实验。新型太阳能腔体集热器利用黑腔的高吸收率、泡沫板的良好隔热性以及玻璃板营造的温室效应，使得集热器的整体热损失明显下降，从而提高了集热效率。测试结果表明：集热器内介质为水时，平均温升为15．1℃，最大温升为21℃，热效率最低为53％。各项热损失计算结果表明：黑腔辐射造成的热损失最大，反射热损失和对流热损失很小。新型太阳能腔体集热器结构紧凑，单位体积的有效吸热面积较平板太阳能集热器和真空管太阳能集热器大。
재흑체개념적기출상，설계료1충신형태양능강체집열기，병진행료실험。신형태양능강체집열기이용흑강적고흡수솔、포말판적량호격열성이급파리판영조적온실효응，사득집열기적정체열손실명현하강，종이제고료집열효솔。측시결과표명：집열기내개질위수시，평균온승위15．1℃，최대온승위21℃，열효솔최저위53％。각항열손실계산결과표명：흑강복사조성적열손실최대，반사열손실화대류열손실흔소。신형태양능강체집열기결구긴주，단위체적적유효흡열면적교평판태양능집열기화진공관태양능집열기대。
On the basis of traditional cavity absorber,a kind of new solar cavity-heat receiver is designed.With advantage of high absorptivity and good thermal insulation,the whole heat loss gets smaller and can obtain high thermal efficiency.The result of the experiment shows that the mean temperature rise is 15.1℃ and the highest temperature rise is 21℃ when water is filled,and the thermal efficiency is 53% under present situa-tion.The result of the thermal loss calculation indicates that radiation heat loss accounts for the most,while reflection heat loss and convection heat loss is small.The compact design has bigger effective heat absorbing area per volume than flat plate solar collector and evacuated tubular collector.