Study on the Development of an Optimal Heat Supply Control Algorithm for Group Energy Apartment Buildings According to the Variation of Outdoor Air Temperature

Abstract

Abstract:In the present study, we have developed an optimal heat supply algorithm which minimizes the heat loss through the distribution pipe line in a group energy apartment. Heating load variation of a group energy apartment building according to the outdoor air temperature was predicted by a correlation obtained from calorimetry measurements of all households in the apartment building. Supply water temperature and mass flow rate were simultaneously controlled to minimize the heat loss rate through the distribution pipe line. A group heating apartment building located in Hwaseong city, Korea, which has 1473 households, was selected as the object building to test the present heat supply algorithm. Compared to the original heat supply system, the present system adopting the proposed control algorithm reduced the heat loss rate by 10.4%.

Combined analysis of electricity and heat networks

“…Usually, the supply temperatures T s at each source and the outlet temperatures T o at each load are specified in the thermal model [29,31,36,37]. The load outlet temperature T o depends on the supply temperature T s , the outdoor temperature and the heat load [38][39][40][41]. For simplicity, the outlet temperature T o is assumed to be known at each load.…”

Economic Efficiency of Automated Individual Heating Substation (IHS)

“…The relevance of this IHS has been repeatedly noted in the articles [15][16][17]. The idea was that the automation of ITP will reduce heat loss by melt down the building into separate priody time and will automatically adjust the flow of heat [7][8][9][10][11][12][13][14][15][16][17].…”

A Study on the Development of a Multi-Heat Supply Control Algorithm in a District Heating Apartment Building in Accordance with the Variation of Outdoor Air Temperature

“…The specifications of the object building (11,12) 총 수입액의 약 26%를 차지하며 에너지 소비량은 세 계 9위, 온실가스 배출량은 세계 16위에 이르고 있다. 특히 가정과 산업부문의 에너지 소비량은 매년 크게 증가하고 있으므로 효율적인 에너지활용 노력이 절실 히 필요한 실정이다.…”

“…3 Heat loss rate of the distribution line for the model district heating supply of the apartment building with respect to the outdoor air temperature. (11,12) 2.2 연구 수행 방법…”