What is waste heat recovery (gas - gas)?

In many industrial applications, waste heat takes the form of a gas — typically, heated air or steam. As a result, air-to-air heat exchangers are widely used in industrial applications. (Air-to-air heat exchangers are also found in many commercial buildings, HVAC systems, and some modern homes.)

Heat pipe waste heat recovery device is oil, coal and gas boiler equipment, installed in the boiler smoke and flue, flue gas waste heat recovery heating air, hot air can be used as boiler combustion of dry materials. Its structure as shown in the picture: four weeks of the tube box, the middle partition will be separated from the two sides of the channel, the heat pipe for the full finned tube, Dan Genre tube can be replaced. At work, the high temperature flue gas flow from the left side of the channel to the upward flow of the heat pipe, at this time, the heat pipe heat pipe, heat gas temperature drop. Heat pipe will absorb the heat caused by the right side, cold air from the right side of the channel down the heat pipe, the heat pipe heat, air temperature. The flue gas temperature of the waste heat recovery unit is not lower than the dew point. 

Process Heating Basic Heat Recovery Method

A heat exchanger is the most basic method of capturing waste heat energy. A heat exchanger is a device that transfers heat from one medium to another, typically air, gas, or fluid. A solid wall, plate, or tube separates the two media. The exchanger employs thermodynamic and fluid mechanics principles to heat or cool one medium to the desired temperature. The general process is illustrated by a basic schematic of a process oven with heat recovery.

waste heat recovery (gas - gas)