The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The heating system based on the underground water source heat pump is energy saving and environment friendly, but its operation effect in the cold area of Northwest China is rarely reported. The heating area of the underground water source heat pump system located in No.2 Middle School, Zhangye city, is 72755 m2. The system mainly consists of two sets of heat pump systems in parallel and each system...