Presents a model experiment of air distribution of hot air heating, analyses the axial velocity decay of isothermal and non isothermal jets from a circular nozzle, finds out the change pattern of jet volume, warm jet lift due to buoyancy, volume ratio of the upper and lower halves of the jet, and recommends the results to be referred in design of hot air heating in tall workshops.

Development of a new type of integral portable heating equipment;

Design for new-style and hot-water car heater and research on its heat transfer performance;