Parametric Study on Residential Passive House Building in Different Chinese Climate Zones

Xing Li,Zhigang Ren,Xiaofang Shan,Guang Yang,Qinli Deng

doi:10.3390/su13084416

Xing Li, Zhigang Ren + Show 3 more

Open Access

https://doi.org/10.3390/su13084416

Copy DOI

Abstract

With the increasing of building energy consumptions, the related issues of energy crisis and environmental pollution become more and more prominent. As an effective energy-saving technology, the passive house (PH) has been widely applied in China to reduce the building energy utilization. However, the design and application of PH vary with different climate conditions. Therefore, it is significant to conduct the parameterization of PH and propose a suitable design zoning of PH in China. In our study, a comprehensive feasibility analysis of the implementation of PH is performed, which chooses 31 representative cities covering 5 climatic regions. The sensitivity analysis firstly filters the key parameters that heavily affect energy consumption. The results indicate that the key parameters include external wall heat transfer coefficient (WU), basement ceiling heat transfer coefficient (BCU), solar heat gain coefficient (SHGC), glass G value (UG), heat recovery efficiency (HERE) and humidity recovery efficiency (HURE). Then, with the multiple regression approach, the values of key parameters are optimized. Based on the determined values of sensitive parameters, the design zoning of PH in China is finally proposed, which can guide the design of PH as well as enhance the application of PH in China.

Highlights

The global energy consumption is mainly concentrated in building, transportation and industry, of which the building field accounts for 40% [1,2]
The results show that the energy consumption calculation error of Passive House Planning Package (PHPP) and Design Builder (DB)
The results show that the warmer the climate is, the easier it is to meet the heating demand

Summary

Introduction

The global energy consumption is mainly concentrated in building, transportation and industry, of which the building field accounts for 40% [1,2]. The. Ministry of Housing and Urban-Rural Development of the People’s Republic of China put forward the technical standard for nearly zero energy buildings to reduce the energy consumption of residential buildings by more than 60% [5]. As a typical type of low-energy building, the concept of PH was proposed by Dr Feist of the Passive House Institute (PHI) aiming to provide a comfortable indoor environment with minimum energy demand [6]. To obtain the PH certification, the building must meet the passive house standard (PHS): Annual heating or cooling demand must be equal or less than 15 kwh/m2 , the primary energy use must be equal or less than 120 kwh/(m2 a) and the tightness level (n50) must be equal or less than 0.6 h−1 [9].

Methods

Results

Conclusion