چكيده به لاتين
Buildings as national capitals need care and renovation. Their destruction causes waste of capital and energy. Existing buildings should be renovated. According to the research of Kabdrakhmanova et al., KU et al., Al-Rashid, Dehkordi, Kalbasi, Farrokh Abdallah et al., Salehi, it was found that the process of finding optimal solutions for renovation in terms of energy and cost has always been a fundamental problem in research. In this research, the effect of phase change materials on the reduction of thermal loads of one of the residential buildings in Tehran for sustainable renovation has been discussed. By modeling a case hotel building in Design Builder software and specifying the general characteristics of the building to reduce energy waste in winter and summer, two tests were simulated in Design Builder software by implementing phase change materials.In the first test, the issue of placement of phase change materials (PCM) in the four climatic conditions of Iran was investigated. Four cities were chosen as representatives of different climates. Bandar Abbas city was selected as representative of hot and humid climate, Tabriz city as representative of cold and mountainous climate, Yazd city as representative of hot and dry climate and Rasht city as representative of moderate and humid climate. The building was modeled in two stages with and without PCMs in Design Builder software and analyzed. The results obtained from energy consumption in different cities indicated that with the use of phase change materials, the amount of energy consumption of the entire building in the cities of Yazd, Tabriz, Rasht and Bandar Abbas was 03/19, 08/18, 03/13 respectively. and 20.29 percent has decreased.In the second test, the influence of the placement front of the phase change materials was investigated in order to measure the effect of sun and shade on the performance of the above materials in the city where the target hotel is located (Tehran). Thus, the building was modeled in the north, northeast, east, southeast, south, southwest, west, and northwest directions. The results of building energy consumption have decreased by 2.56, 2.89, 2.77, 2.33, 1.39, 2.32, 3.11, and 2.06 percent.
