Analysis of the Appropriateness of Unit Heating Loads for Non-residential Buildings : Development of Reference Model by Application and Analysis of Quantity of Heat Data for District Heating

Abstract

Purpose: The unit heating load standard is divided into multi-family housing and non-residential buildings. The detailed standards for multi-family housing were revised in November 2017; however, non-residential building standards have remained unchanged for 17 years since January 2006. This study aims to develop a standard model for non-residential buildings and analyzes the data regarding district heating usage, because a new standard for selecting the equipment capacity of buildings is needed according to the changes in the national energy saving policies and building insulation standards. Method: Based on the collection of drawings and statistical data for the investigation of the window area ratio and the ratio by reality, the optimal standard model for each purpose was developed. Based on the heat usage data of 121 buildings, comparisons and verifications were performed considering the simulation results and heat usage data. Result: The average load reduction rate of the amendment compared to the existing criteria for each of the 12 uses was analyzed to be 46.4%. Based on the heat usage data of 121 buildings, the average difference between the simulation result-based proposal and the error rate analysis was 10.8% for 12 different uses.