How heat recovery wheel or heat pipe compatible with AHU ?

heat pipe and energy  wheel are both energy RECOVERY systems , so they are used to recover energy that we usually waste , in the case of hot countries were you have fresh air handling  units , you will get the air from the external atmosphere (with high temperature and humidity) and treat it with the source you have in the unit (the compressor) so the compressor will have the load of cooling the external air plus removing the humidity (if in a high humidity area) , while at the same time we just simply throw the internal air which is much colder than outside  and dry , so the idea is to exchange heat between the two streams of air before throwing the internal air outside , and inserting the fresh air inside 

example: just imagine using fresh air unit in the gulf area were the temperature is45 and humidity more than80% (this air we will throw inside the residential area) 

and the exhaust air is27 and humidity45% (this air will be thrown outside)

Heat recovery wheel is economy unit used to cool down the fresh air before it enters the AHU Mixing box. The return or exhaust air which are cooler than outside air are passed through this wheel at one side and fresh air on the other side. In this way the hot fresh air is cooled down to certain level which reduces load on the cooling equipment.

Hope this will work

-by the temprature in &out you wants & %RH

Heat Recovery wheel recovers the heat energy from the exhaust stream of air and passes it to the incoming fresh air. Hence your total load can be reduced.

Now there are Energy recovery wheel which recovers not only the sensible energy (Temp), it also the  Latent Energy(Humidity).Interestingly3 A Molecular sieve quoted unites also trapes the contaminents ( like CO2 and ahrmful gases) in the outgoing stream of air and make sure that hey are not mixed with the incoming fresh air.

For that you need to have  the purge sector in your wheel

Ilanseral Ulaharam - Country Manager ( India) - Ostberg/Enventus Energy recovery wheels

Recovery wheel is used to recover the thermal energy we usually waste through the building exhaust. As we always have building exhaust at lower temperature as compare to the ambient air temperature we intake as fresh air. so its always beneficial to transfer the heat to the exhaust air leaving the building.

There are many types of heat recovery units the most common are the (thermo wheel ,plate type) ,heat recover always used in huge HVAC systems ,we choose the type of the heat recover unit according to heat transfer eff. we need (hot areas like golf need high heat transfer eff.)

I prefer anytime Heat Pipe over heat wheel and Plate types as HP have more advantages over heat wheel, to know why and more details get in touch with me on