Heat Transfer and Energy Consumption of Passive House in a Severely Cold Area: Simulation Analyses

• Published in: Energies (Basel) Vol. 13; no. 3; p. 626
• Main Authors: Wang, Fang, Yang, Wen-Jia, Sun, Wei-Feng
• Format: Journal Article
• Language: English
• Published: Basel MDPI AG 01.02.2020
• Subjects: Air conditioning; Alternative energy sources; Building construction; Buildings; Climate change; Climatic conditions; Cold; Computer simulation; Cooling; Design; enclosure structure; Energy conservation; Energy consumption; Energy efficiency; Energy management; External walls; Green buildings; Heat recovery; Heat transfer; heat transfer coefficient; Heating load; Houses; Irradiation; passive house; Quality standards; Radiation; Residential areas; Solar energy; Summer; Sustainable development; Temperature; Thermal insulation; Ventilation; United States > US; China; Germany
• ISSN: 1996-1073; 1996-1073
• DOI: 10.3390/en13030626

In order to improve the heat transfer in enclosure structure of passive houses in cold area with complex climatic conditions, a three-dimensional model is established to investigate the time-by-case changes of outdoor temperature and solar irradiation based on the principle of integral change and the method of response coefficient and harmonious wave reaction. The variations of hourly cooling and heating loads with outdoor temperature and solar irradiation are analyzed. As simulated by cloud computing technology, the passive building energy consumption meets the requirements of passive building specifications. In the present research, super-thermal insulation external wall, enclosure structure of energy-conserving doors and windows, and high efficiency heat recovery system are employed to achieve a constant temperature without active mechanical heating and cooling, which suggests a strategic routine to remarkably decrease the total energy consumption and annual operation cost of passive building.