ISSN:0003-8628    

DOI:10.1080/00038628.1991.9696688

出版商:Taylor & Francis Group    

年代:1991

数据来源: Taylor

摘要:

This paper analyses the relevance of an approximate method, using factors such as time-lag and decrement factor, in the prediction of heat flow of an unconditioned room. The approximate method, for conditioned environment, suggested by Koenigsberger et al (Ref. 8) has been modified suitable for the unconditioned environment and utilised in this analysis. The theoretical analysis is supported by a case study, which is a room in the top floor a multistorey building. The results show that the approximate method is better in predicting the values of heat flow, but involves less effort than the admittance method.

ISSN:0003-8628    

DOI:10.1080/00038628.1991.9696689

出版商:Taylor & Francis Group    

年代:1991

数据来源: Taylor

摘要:

Waterproofing, thermal insulation and other surface finishing materials are directly or indirectly susceptible to solar radiation and weathering on flat roofs. Polymeric and bituminous membranes applied on roofs degrade in the presence of near ultra-violet light, oxygen and heat, thus changing both chemically and physically. Therefore, the temperature of these materials plays an important role in the degradation of the materials. In 1987, a pilot experimental study for natural weathering and testing of some of the locally produced polymeric and bituminous membranes was set up with the purpose of investigating the effect of a hot-dry climate on waterproofing materials used for roofing in Saudi Arabia. During the weathering process, the surface temperatures of these materials, the ambient temperature, and the global solar radiation were simultaneously monitored.

ISSN:0003-8628    

DOI:10.1080/00038628.1991.9696690

出版商:Taylor & Francis Group    

年代:1991

数据来源: Taylor

摘要:

Although the International Daylight Measurements Programme, commencing in 1991, will be an attempt to improve the database for daylight prediction, it is unlikely to provide wide coverage of different daylight climates. The use of existing weather satellites data could support a more detailed analysis. A pilot study using the European Meteosat satellite is described.

ISSN:0003-8628    

DOI:10.1080/00038628.1991.9696691

出版商:Taylor & Francis Group    

年代:1991

数据来源: Taylor

ISSN:0003-8628    

DOI:10.1080/00038628.1991.9696692

出版商:Taylor & Francis Group    

年代:1991

数据来源: Taylor

ISSN:0003-8628    

DOI:10.1080/00038628.1991.9696693

出版商:Taylor & Francis Group    

年代:1991

数据来源: Taylor

ISSN:0003-8628    

DOI:10.1080/00038628.1991.9696694

出版商:Taylor & Francis Group    

年代:1991

数据来源: Taylor

ISSN:0003-8628    

DOI:10.1080/00038628.1991.9696687

出版商:Taylor & Francis Group    

年代:1991

数据来源: Taylor