Moe Salem  user askandrany 1 
Please could you explain why you Delete  my paper some claim a copy right , 1st of all they are talking about 2 different subject , i just want to know why it was deleted https://en.wikipedia.org/wiki/Water_Side_Evaporative_Heat_Recovery   , one paper that one it was in Air2O company talking about indirect Evaporative_ cooleing , it dont have any  thing about energy recovery , this one is talking about Evaporative_recovery , to some one not from the industry they seem similar but they are not