3 ms·
If the outflow is not compressed, you can transfer at most half of the heat and that is under perfect conditions.
by stkdump 5y ago
If the outflow is not compressed, you can transfer at most half of the heat and that is under perfect conditions.
- lhopki01 5y agoThat's not quite right. If the airflows are in opposite directions then you can transfer more heat. Since as the hot air cools it encounters progressively colder air ensuring there is always a temperature gradient to transfer heat. These systems are about 60%-90% efficient at transfering heat.