Thank you again for your time. It does seem that I will need to try some home experimentation to get further with this one. Your point about the Adiabatic nature of the process is probably the one I was looking for regarding the "hot" pipes.
Thank you for replying.
The question is somewhat a pedantic one I know but I am trying to win a debate over does the fact that the air leaving the pump is "hot" this means it heats the pond water. I know there are lots of other variables, air/water temp, humidity etc. which will have a much...
Correct. As far as I know all air pumps are fitted outside of the ponds. Many will be in a sort of pump shed but lots are outdoors with basic shelter roof over.
The water circulation pumps are about 50% submersible and 50% external. This amuses me as the trend is for low energy pumps but fitted...
Thanks for your prompt response. To be clear, am I correct in saying the heat of compression is lost when the air expands into the water? If the air is say, 10C and the water is at 10C also will the water just end up gaining the 44W (less losses as they are externally fitted and not usually...
I wonder if someone can help settle a debate I am having over using air compressors to aerate garden koi ponds? A typical pond will have a small electric air pump (44W rated, delivers say 50 litres a minute at 1.5 metres deep in a 10000L pond) blowing air through a diffuser to add oxygen and...