Multi-Stage Sensitivity Analysis of the Energy Demand for the Cooling of Grain Warehouses in Cold Regions of China

Author:

Zhang Hua12,Ye Junya1,Li Kunming12,Niu Shujie3,Liu Xiao4567ORCID

Affiliation:

1. School of Architecture, Henan University of Technology, Zhengzhou 450001, China

2. Henan Key Laboratory of Grain and Oil Storage Facility & Safety, HAUT, Zhengzhou 450001, China

3. Department of General Layout Plan and Architecture, Henan University of Technology Design and Research Academy, Zhengzhou 450001, China

4. State Key Laboratory of Subtropical Building and Urban Science, South China University of Technology, Guangzhou 510641, China

5. School of Architecture, South China University of Technology, Guangzhou 510641, China

6. Energy Saving Technology Research Institute, South China University of Technology, Guangzhou 510641, China

7. Architectural Design & Research Institute Co., Ltd., South China University of Technology, Guangzhou 510641, China

Abstract

The early design parameters exert a considerable influence on the cooling energy demand of a granary building in operation. In order to investigate the impact of various parameters on energy use, a grain warehouse energy model was constructed using the Ladybug + Honeybee tools on the Grasshopper platform. Three global energy sensitivity methods were used to analyze the model, and the sizes of the influential parameters were determined and ranked. The study uncovered that the cooling energy demand of the grain warehouse was primarily influenced by factors such as the cooling set-point temperature, roof solar absorptance, roof and exterior wall insulation thickness, window type, and orientation. On this basis, a local sensitivity analysis was conducted for the highly sensitive parameters to identify their influence trend and optimal design range. The results showed that the cooling energy demand of the grain warehouse increases faster as the cooling set-point temperature decreases, with the highest growth rate occurring at a temperature below 18 °C. Lower solar absorptance of the roof is conducive to reducing the cooling energy demand of the grain warehouse. When the thickness of the roof thermal insulation is less than 120 mm and the thickness of the external wall thermal insulation is less than 60 mm, energy use decreases more quickly with greater insulation thickness. It is advisable to use traditional or new windows with thermal insulation and shuttered windows. Furthermore, the optimal position of the long side of the granary was between 10° west and 10° east of north. This research could provide guidance for the energy-saving design and renovation of granary buildings in cold regions of China.

Funder

National Natural Science Foundation of China

Henan Key Laboratory of Grain and oil storage facility & safety

Guangdong Basic and Applied Basic Research Foundation

Henan Key specialized research and development breakthrough–science and technology project

Guangzhou Basic and Applied Basic Research Foundation

2022 Guangdong Philosophy and Social Science Foundation

Guangzhou Philosophy and Social Science Planning 2022 Annual Project

Fundamental Research Funds for the Central Universities

Department of Housing and Urban-Rural Development of Guangdong Province

Department of Education of Guangdong Province

Publisher

MDPI AG

Subject

Plant Science,Agronomy and Crop Science,Food Science

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3