The effects of interior emissivity and room layout on forced air space-conditioning power usage

被引：10

作者：

Buckmaster, David J. ^{[1
]}

Abramson, Alexis R. ^{[1
]}

机构：

[1] Case Western Reserve Univ, Dept Mech Engn, Cleveland, OH 44106 USA

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2015年 / 89卷

关键词：

Buildings; Space conditioning; Envelope loss; Computational fluid dynamics (CFD); Emissivity; THERMAL COMFORT; BUILDING ENERGY; RADIANT BARRIERS; REFLECTIVE COATINGS; CFD SIMULATION; PERFORMANCE; VENTILATION; PROGRAMS; INSULATIONS; ENVELOPE;

D O I：

10.1016/j.ijheatmasstransfer.2015.04.059

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Through computational fluid dynamics studies, this paper analyzes the effects of and interactions between interior surface emissivity, positioning of forced-air supply/return locations, and building "tight-ness" on space-conditioning power requirements in a simple model room. Each is shown to be important, but all are highly interdependent. In well-sealed rooms, layout is shown to be largely unimportant and extremely low-emissivity (epsilon = 0.1) a slight (2-5%) benefit. With high infiltration or external ventilation requirements, poor supply/return locations can increase power usage twofold, and extremely low emissivity produces a +/- 20% change in power-consumption depending on the room layout. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：216 / 228

页数：13

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