期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
Monitoring actual performance of ground source heat pump system using GPRS-based data transmission: A case analysis in Tangshan 被引量:2
1
作者 杜红普 孔祥飞 +1 位作者 李敏 齐承英 《Journal of Central South University》 SCIE EI CAS CSCD 2015年第4期1554-1562,共9页
The energy efficiency monitoring is an essential precondition for ground source heat pump system's controlling and energy saving operation. Based on the data monitoring applied in the school building, this work is... The energy efficiency monitoring is an essential precondition for ground source heat pump system's controlling and energy saving operation. Based on the data monitoring applied in the school building, this work is focused on the parameters acquisition and operation analysis of the GSHP system in Tangshan. Results show the average COPs(coefficient of performance) are2.85 and 2.70 in summer and winter, respectively, and heat(cold) unbalance underground existed after whole year operation. The analysis of data also indicates that the direct borehole air-conditioning saved some power consumption obviously in the early stage of summer and energy saving of the GSHP system depended remarkably on its operation and management level. Besides the observation points of ground temperature are laid for a large-scale GSHP system, and the hydraulic balance of the pipes group needs to be concerned specially in safeguarding better reliability. 展开更多
关键词 ground source heat pump monitoring operation performance
下载PDF
Current Situation and Countermeasures of Weather Modification Ground Operation in Heilongjiang Province
2
作者 Libin ZHAO 《Meteorological and Environmental Research》 CAS 2022年第4期80-85,共6页
Heilongjiang Province is the granary of China,which plays a key role in ensuring the national food security.The total grain output of Heilongjiang Province has ranked first in China for 12 consecutive years.In the pas... Heilongjiang Province is the granary of China,which plays a key role in ensuring the national food security.The total grain output of Heilongjiang Province has ranked first in China for 12 consecutive years.In the past four years,it has been stable at more than 75 billion kg,a record high.One bowl of rice in every nine bowls in China comes from Heilongjiang.The work of weather modification and disaster prevention and reduction is an important measure to ensure the development of agricultural production,and is the key of meteorological services for agriculture.Based on the actual work of artificial weather modification in Heilongjiang Province,this paper analyzes the current situation of ground operation in Heilongjiang Province,studies and judges the safety production,and puts forward reasonable countermeasures.The purpose is to improve the ground operation ability of artificial weather modification and provide safe and scientific services for agricultural production. 展开更多
关键词 Weather modification ground operation Disaster prevention and mitigation Countermeasure research
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部