JAUE2014-045 Study on simulation of building and community energy systems: Updating the heat and power load basic unit in order to estimate building loads during system master planning

Abstract

Annual heat and power loads need to be estimated to simulate building and community energy systems. During building planning, loads can be estimated in detail based on building specifications during the basic design stage. However, detailed specifications have yet to be determined during the basic planning stage of initial planning, so loads must be estimated based on limited information such as the purpose of the building and its size.
 Units indicating the heat and power loads, which are statistical values for the load per unit area, are often used to estimate loads. However, the existing load basic units originated from data in studies that took place more than 20 years ago, so the existing load basic units differ widely from current loads. These units need to be updated.
 This study examined load data for recent buildings and it devised new load basic units. In addition, the load 
characteristics of the new and existing load basic units were comparatively analyzed and the effect that disparities in estimated loads had on energy system planning was analyzed.