Discussion on approach to the problems of colliery heating design;

Heat-transfer oil furnace heating－-the good way for WBP enterprises saving energy and increasing efficiency;

Identification of dangerous factors and accident preventive measures of urban underground heating pipeline;

Energy saving technology in heat supply and heating and developmental direction of equipments;

Utilizing rubbish-incineration to produce heat for heat supply system;

Study on current heat supply status in residential area of Pingyao as well as questions existed;

In order to utilize solar energy and wind energy to solve the problem of building energy supply and realize building energy-saving and environmental protection,a kind of heat-supply system of comprehensive utilization of solar energy and wind energy i.

The resource advantages of applying heat-supply system combining geothermal water with gas peak-shaving boiler in Tianjin region as well as its design idea,merits and problems to which attention should be paid are analyzed.

The economic analysis is made on three types of heat-supply modes,including centralized heat-supply based upon municipal gas-fired boiler plant,centralized heat-supply based upon gas-fired boiler plant in residential area,and individual heat-supply with wall-mounted gas boiler.

This paper probes into the technical measures for improving the economy of the hot water heating from two aspects of the supply and return water temperature and the specific pressure drop, and expounds the paths for improving the economy of hot water heating from the angle of operation management.

In this paper,compared with hot water heating system and steam heating system,it was found that hot water heating system have more advantages which are stability,safety and healthy.