Weight of energy consumption parameters of rural residences in severe cold area

Abstract

Appropriate management and optimization of energy consumption provides great support for the sustainable development of rural buildings. Although some research results are helpful for the energy-saving design and transformation of rural residential buildings, there is no systematic analysis of the impact of energy consumption parameters on energy-saving, which is not conducive to further optimization of energy-saving design. Based on more than 200 groups of field survey data, a typical initial rectangle model of rural residence in the severe cold area of northern China is established, and the orientation, aspect ratio, south window-wall ratio (WWR), north WWR, and enclosure structure are five main factors affecting the energy consumption in heating period. The method to evaluate the heating energy consumption of buildings was proposed based on EnergyPlus and analytic hierarchy process (AHP) from different functional parameters. The climate conditions of four cities of three secondary severe cold areas (1A, 1B, 1C) in northern China are selected for the building model, and the change rates and weights of energy consumption related parameters are analyzed. The results from the energy consumption simulation analysis show that the weight of enclosure structure is the largest, followed by the South WWR, the ratio of length to width is the third, and the orientation is the smallest in the four cities, which provides a good reference for the prediction and optimization of energy consumption in the rural residences in severe cold area.

Keywords

• Rural residence
• Energy consumption parameter
• Weight
• Analytic hierarchy process
• EnergyPlus