evaporator leakage problem
May 16, 2010 11:02 PM Subscribe
i have an aluminium tube evaporator with a fault, and want to use a vision or test system to find the fault. any good ideas? realistic ones..
posted by edtut to Science & Nature (7 answers total)
in a production environment we are getting bad internal brazing. the brazing means that there are gaps in the top tank. the refrigerant will take a least resistive path, and performance falls away.
so i want to, for example, x ray the parts and find the bad braze. or use some leakage testing system to finnd the reduced flow path. i have tried to test bad parts with nitrogen, but because of the lack of density the problem of low pressure drop doesnt show up. any tricky ideas? sorry the info isnt too clear.