Exhaust air heat recovery for a cigarette factory in hot summer and cold winter zone

According to the process characteristics and air conditioning settings, adopts preheating the fresh air with the exhaust air from the primary process of the cigarette factory. Calculates the hourly heat recovery energy of three schemes under the typical year operating condition, compares and analyses the schemes from the perspective of economy, heat recovery quantity and implementation conditions of the plant room. The results show that the total heat recovery is suitable for this project and the humidifying way has a limited impact on the heat recovery quantity.