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制作方式对日光温室相变蓄热材料热性能的影响 被引量:11
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作者 陈超 李琢 +2 位作者 管勇 韩云全 凌浩恕 《农业工程学报》 EI CAS CSCD 北大核心 2012年第S1期186-191,共6页
日光温室墙体能否在有限的日照时间内高效蓄集太阳能,与日光温室墙体层的构筑方式以及所采用的建筑材料的热工性能(热阻、比热容、体积质量)直接关联。该研究将所研制的相变材料与普通建筑基材分别以直接混合方式和插层方式制成复合相... 日光温室墙体能否在有限的日照时间内高效蓄集太阳能,与日光温室墙体层的构筑方式以及所采用的建筑材料的热工性能(热阻、比热容、体积质量)直接关联。该研究将所研制的相变材料与普通建筑基材分别以直接混合方式和插层方式制成复合相变蓄热墙体材料板,通过比较试验的方法,从蓄热温度、时间、以及蓄热量等方面,比较了2种不同构筑方式对复合相变蓄热墙体材料蓄/放热特性和传热性能的影响规律。结果表明:同样蓄(放)热温度条件下,直混试件比插层试件提前70min结束蓄(放)热;直混试件的蓄热量比插层试件大10%,放热量大15%,直接混合方式制成的复合相变蓄热墙体材料板的传热性能和蓄放热效率更好。该研究结果可为相变蓄热技术在日光温室建筑墙体的科学应用提供方法与建筑热工理论参考。 展开更多
关键词 日光建筑 热效应 复合材料 蓄放热特性 蓄热量
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Consideration of Shape Characteristics for Apartments Incorporating Daylight and Energy Performance
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作者 Ji-Eun Lee Kang Up Lee 《Journal of Civil Engineering and Architecture》 2013年第12期1471-1484,共14页
The objective of this paper is to design units with well-lighted environment and low-energy consumption in the apartment building. Their daylight and energy performance can be determined by the building shape and orie... The objective of this paper is to design units with well-lighted environment and low-energy consumption in the apartment building. Their daylight and energy performance can be determined by the building shape and orientation. The paper initially produced the results of illuminations and energy efficiency using the daylight and thermal simulations by Autodesk "ECOTECT". It then provided the comparison on simulation results of two type buildings: Flat-type and L-type apartment. The available options for the design incorporating the environmental performance have less flexibility in fiat-type apartments than in L-type ones. The best unit in the fiat apartment is fixed from -45 to 45 degrees rotation, however, that in the L-type one can change depending on rotating the building. Moreover, if the upper level units had the appropriate environment, the lower level could have larger window areas in order to meet those daylight performance needs. Results show that the facade design should have the different window areas depending on the location of each unit. It can assist in the comfort and low-energy consumption design by using simulation tools that achieve the more predictable understandings. 展开更多
关键词 Daylight performance energy efficiency passive housing environmental simulation building shape
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