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hello i need to draw specific exergy lines in psychrometric chart. does anyone has any idea how could i do it, and with which programs? i do not know a lot about programming to be honest... BR, zdej

MisterE2, could you explain this: 'But, there's another problem, apparently your water is heating the air and the air is doing exactly the same to the water by your problem definition.'? Thanks. DRWeig, they are not measured. I calculated them, I compared my results with some heat exchanger...

and what is wrong with it?

thank you for replying, however i managed to get good polynomial expressions so this problem is solved :)

i am having a problem with heat exchanger (tube and fin) exergy analysis... the problem which i am having looks like this: in one of the cases air (mass flow of air: m,a=0,71 kg/s) is entering the heat exchanger with temperature T,aIN=21C and relative humidity RH,aIN=57%, air is cooled to the...

hey! does anyone know if there are any good articles about exergy analysis and exergy efficiencies of finned tube heat exchangers (for heating and sensible and latent cooling of air with water)? or any other articles which are not strictly related to this topic but could be useful? thanks

thank you for answering. unfortonately i did not find polynomials (cosmic website), but i did manage to get a bit more accurate polynomials on my own. i hope now it will be OK...

Hello to all! I have a question regarding enthalpy calculation... I am trying to do some exergy analysis and I need to have exact enthalpy values... which values for cp,air cp,wv and r (h=cp,a*T+w(r+cp,wv*T)) do I need to use to get exact enthalpy values for moist air (compared to ashrae...