Introduction:
Natural gas burns in the direct-fired heating unit and the temperature of flue gas is reduced to lower than 30℃. Without extra energy consumption, condensate heat from flue gas can be recycled to a large extent. At the same time, the heat of the shallow geothermal source can be collected and provided for the users. The energy consumption of heat supply can be saved by 40%. Carbon emissions can be reduced by 40%. Condensate water can be recycled and flue gas can be cleared.

Driving source: natural gas

Surplus heat that can be utilized: soil, underground water, urban sewage

Heat gained: used for district heating and cooling