Future of Buildings:Zero Energy or Peak Reduction?
The motivation for this study is to weigh two philosophies that should be considered in the design of buildings,particularly grid-connected single family residences: Electrical peak reduction and zero energy.Tradeoffs between these two design philosophies exist,and they can vary with geographical region.In this paper we generally emphasize a cooling-dominated climate(others will be mentioned)for specificity and because the author has had the most experience with this particular kind.In this type of climate,summer afternoon air conditioning is primarily responsible for an electrical peak demand.After a discussion of the various motivations that may be considered by the designer,a particular set of types of approaches is given.Considerations in arriving at a general design philosophy are described,particularly the need for the use of an appropriate building energy computational code(BECC)analysis to allow tradeoffs to take place.It is shown that the development of a zero energy building,when that is the primary goal,usually does decrease the peak demand over a less energy efficient building that is otherwise similar.However,it is generally the case that the zero energy building still shows a peak demand that coincides more or less with the timing of the typical local value.It is further shown that significant decreases in the peak energy demand can be accomplished without decreasing the total energy use significantly.This underlines the fact that the operational goal of the building needs to be clearly defined at the onset.
Buildings Zero Energy Peak Demand Renewable Energy Design Philosophy
Robert F.Boehm
University of Nevada Las Vegas,NV,USA
国际会议
桂林
英文
1-13
2013-07-16（万方平台首次上网日期，不代表论文的发表时间）