CONTINUOUS SURFACE TEMPERATURE MONITORING TO ESTIMATE SENSIBLE HEAT LOSS BY BUILDING FINISHES

Autor:	Janet F.C. Sham, Tommy Y. Lo, Wei Ting Xu
Rok vydání:	2011
Předmět:	Surface (mathematics) Temperature monitoring Environmental Engineering Materials science Meteorology Magnitude (mathematics) Management Monitoring Policy and Law Sensible heat Pollution visual_art Thermal visual_art.visual_art_medium Geotechnical engineering Ceramic Urban heat island Cooling curve
Zdroj:	Environmental Engineering and Management Journal. 10:311-317
ISSN:	1843-3707 1582-9596
DOI:	10.30638/eemj.2011.045
Popis:	This paper proposes a novel technique, Continuous Surface Temperature Monitoring (CSTM), that uses infrared technology to estimate the sensible heat (SH) transfer between building finishes materials and the surrounding environment without knowing the physical and thermal properties of the tested materials. It is critical to study the contribution of heat transferred by building fabrics to the Urban Heat Island (UHI) effect because of the increasing threat of global warming. One method to investigate this is to measure the SH loss of building fabrics. Its magnitude is the product of object’s mass, m, its specific heat, c, and its temperature change, ∆T. In this study, CSTM estimates the cooling curves of four building finishes tiles: concrete, marble, clay, and ceramic. The results are quite satisfactory in that there is only 11.86% error between the SH calculated by the formal Sensible eat equation (mc∆T) and the CSTM technique. The study also shows that clay tiles have the highest SH loss per unit volume to the surrounding environment, and the optimal parameter settings for the technique are discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c3dfca00223f088f8487dba811206c67 https://doi.org/10.30638/eemj.2011.045 Zobrazit plný text záznamu