Hi Dear Colleagues,
As you know, refrigerant two phase distribution at evaporator is big problem because of the fact that it can cause significant capacity reduction unless used optimum distributor. Thus, I am planning a experimental test rig but I'll use water- vapor mixture as refrigerant, merging this mixture at determined ratios and measuring the flow rate at outlet of each circuit. Does using water instead of refrigerant such as R404A give certain result? I would like to take your value opinions. Thanks
Dear Ergin,
I invite you to check out Patrick Leblay's work (https://www.researchgate.net/profile/Patrick_Leblay), and especially the following article:
https://www.researchgate.net/publication/262806939_Characterisation_of_the_hydraulic_maldistribution_in_a_heat_exchanger_by_local_measurement_of_convective_heat_transfer_coefficients_using_infrared_thermography
You can also download his PhD thesis (in French) with the following link:
http://fondation.cetim.fr/pages/projets/FondationCetim_Evaporateur_mini-canaux.pdf
Article Characterisation of the hydraulic maldistribution in a heat ...