1. Analysis of the Indoor Thermal Environment and Passive Energy-Saving Optimization Design of Rural Dwellings in Zhalantun, Inner Mongolia, China
- Author
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Wuxing Zheng, Teng Shao, and Hong Jin
- Subjects
020209 energy ,Geography, Planning and Development ,lcsh:TJ807-830 ,lcsh:Renewable energy sources ,02 engineering and technology ,010501 environmental sciences ,Management, Monitoring, Policy and Law ,Inner mongolia ,01 natural sciences ,Civil engineering ,energy-saving design ,Architectural pattern ,Thermal ,0202 electrical engineering, electronic engineering, information engineering ,indoor thermal environment ,lcsh:Environmental sciences ,0105 earth and related environmental sciences ,Consumption (economics) ,lcsh:GE1-350 ,severe cold region ,Renewable Energy, Sustainability and the Environment ,lcsh:Environmental effects of industries and plants ,Thermal comfort ,Energy consumption ,lcsh:TD194-195 ,rural dwellings ,Environmental science ,Passive solar building design ,orthogonal experiment ,Energy (signal processing) - Abstract
Zhalantun city is located in a severely cold region of China. The cold climate and long winter bring challenges to the energy-saving design of rural dwellings in this area, while the poor economic conditions restrict the application of energy-saving technology. This paper aims to propose an optimal combination of passive design parameters by investigating, testing, and analyzing simulations of Zhalantun rural dwellings, which have a particular architectural pattern. Field measurements during winter show that the indoor temperature of a traditional house is low and fluctuates greatly, and the inner surface is prone to easy condensation. Through thermal comfort surveys, neutral and acceptable temperature ranges were obtained to provide indoor calculation parameters for an energy-saving design. Numerical simulations of heating energy consumption were conducted on the typical building models using DesignBuilder. The influence of different design factors on energy consumption was evaluated. Orthogonal experiments were designed to optimize a series of design parameter combinations to reduce the energy consumption of Zhalantun rural houses and to determine the sequence and significance of the effect of these design factors on energy consumption. Results show that the optimal parameter combination based on orthogonal experiments can obviously reduce energy consumption and have better economic benefits without considering mechanical methods. This can provide a basis for improved energy-saving designs and indoor thermal environments in such rural dwellings.
- Published
- 2020