The concept and structural difference of Total Heat Exchange and Sensible Heat Exchange

The cooling capacity in air conditioning is divided into sensible cooling capacity and latent cooling capacity. The cooling capacity is the decrease of dry bulb temperature, and the cooling capacity is the decrease of wet bulb temperature or relative humidity. The use of Total Heat Exchange and Sensible Heat Exchanger is mainly to achieve the purpose of energy saving when air conditioning. The energy recovery of the Total Heat Exchanger contains sensible heat transfer energy, and there is also the energy exchange of latent heat, so the efficiency of the Total Heat Exchanger is higher than that of the Sensible Heat Exchanger, but in extreme conditions, indoor humidity is large, the outdoor temperature is low, and when the dew point temperature is lower than that of the indoor air, dew condensation will occur.

The cooling capacity in air conditioning is divided into sensible cooling capacity and latent cooling capacity. The cooling capacity is the decrease of dry bulb temperature, and the cooling capacity is the decrease of wet bulb temperature or relative humidity. The use of Total Heat Exchange and Sensible Heat Exchanger is mainly to achieve the purpose of energy saving when air conditioning. The energy recovery of the Total Heat Exchanger contains sensible heat transfer energy, and there is also the energy exchange of latent heat, so the efficiency of the Total Heat Exchanger is higher than that of the Sensible Heat Exchanger, but in extreme conditions, indoor humidity is large, the outdoor temperature is low, and when the dew point temperature is lower than that of the indoor air, dew condensation will occur.

Second, the structural difference between the full heat exchanger and the Sensible Heat Exchanger.

Sensible Heat Exchanger is a kind of heat exchanger, it can only exchange heat, can not exchange humidity. The full heat exchanger can exchange heat and humidity, each with its own benefits.

Sensible Heat Exchanger dehumidification is not obvious. Dehumidification of all heat exchangers is more accurate to dehumidification, and the moisture removal of all heat exchangers is more obvious. The most fundamental role of the two is to change fresh air, and dehumidification is only an auxiliary role, if you want to fundamentally dehumidification, of course, it is the best dehumidifier.

The only difference between Sensible Heat Exchange and Total Heat Exchange is the filter core: Sensible Heat Exchange is the aluminum core, and Total Heat Exchange is the paper core. According to a certain principle, Sensible Heat Exchange is better than Total Heat Exchange, and Sensible Heat Exchange aluminum core is corrosion resistant, easy to wash (it is dirty and washed directly under clean water) and has a long service life and resistance to extrusion. The Total Heat Exchange paper core is corroded by water and dust in the air, blocking the vent and cannot be cleaned. Lead to poor ventilation effect, no effect of moisture, the simplest treatment method is to change the paper core.



Total Heat Exchanger is to make the cold and heat transformation of the medium of different temperatures, and its function is to achieve the use temperature of different media through the heat exchanger, no matter how long the installation in any position ensures that the equipment can be used, there is no limit.

When running in summer, the fresh air obtains the cooling capacity from the air conditioning exhaust, reducing the temperature, and is dried by the air conditioning, reducing the moisture content of the fresh air.



During winter operation, the fresh air obtains heat from the exhaust air of the air conditioning room, the temperature rises, and is humidified by the exhaust air of the air conditioning room.



The difference between Total Heat Exchange and Sensible Heat Exchange is the effect on humidity. If there is no great requirement for humidity, choose Sensible Heat Exchange, on the contrary, choose full heat fresh air ventilator.

The Total Heat Exchanger is an energy-saving device used for air conditioning exhaust energy recovery. Its main components are the outer shell, heat exchange core and filter. Since the heat exchange core body is made of materials with heat transfer and transmission performance, when applied to the air conditioning system, exhaust air can be used to pre-cool and dry fresh air in summer, and preheat and humidification fresh air in winter, so that the fresh air load is significantly reduced, thereby saving energy consumption of the cooling and heating system, which is very beneficial to the small system scale, saving operating costs and reducing peak power consumption. The Total Heat Exchange efficiency is related to the structural characteristics of the heat exchange core, the air volume through the core, the air volume ratio of two streams of air through the core and the air inlet parameters.

Generally speaking, the southern region uses more Total Heat Exchangers, while the northern region uses more Sensible Heat Exchangers.