Study On Campus Heating Using Medium-Deep Geothermal Exchangerbased On Load Characteristics

Intelligent control system was designed from source, net and load based on load characteristics of heat source and tail end. There is a feature of intermittent heating of “three none offering” in the campus heating project. Medium-deep geothermal was used as heat source based on local geothermal condition. Intelligent control system was adopted for automatic adjustment according to end user requirement. Under preconditions for satisfyingindoor environment to get lowest running cost. Site measurement results shows that average geotemperature gradient reached 7C/hm at the section of heat exchange. Room temperature is higher than 18C. The operation cost of the whole heating season is about CNY 1.20 /m2 per month , especially in the state of direct supply of geothermal Wells, the heating cost is about CNY 0.1 / m2 per month. It is obvious benefit.