Taking a residential area of five hundreds of families,each of which has average floor area of 150 m2,as study object,the economy of decentralized heat-supply based on wall-mounted gas water heater and gas boiler room and the centralized heat-supply based on coal-fired boiler room is analyzed,the decentralized heat-supply based on wall-mounted gas water heater having a higher economy.

Taking the Fuling district of Chongqing city for example, PHOENICS software is used to compare the impact of the representative pollutants such as sulfur dioxide and inhaled particles emitted from boiler plants for centralized and decentralized heat-supply on air quality.

The comparison between small boiler decentralized heat-supply and large boiler centralized heat-supply is made.

This paper proceeds from distributed energy system,the advantage,use occasion and main way of small scale combined heat and power technology has been introduced.

In the project of remoulding heating housing estate energy conservatio n in Shanxi science, technology and industry commission for national defense, it is designed turbine flow transmitter, platinum resistance thermograph, thermal resistance thermograph and microcomputer.

The Design and Realization of Temperature Data Collection for Heating Station of Separate Areas Based on GSM Network;