so i am currently an intern at an hvac company =, trying to calculate refrigerant quality in condenser/evaporator. i first started analyzing condenser coil, but i am confused on how will i do that or if i am doing it correctly.
first i took the condenser heat rejection capacity and divided that by the mass flow rate to get delta enthalpy and then i divided that enthalpy into 10 segments, this gets a linear change in enthalpy, but i know in real life it doesn't work like that. After finding delta h, i figured out my inlet enthalpy to the condenser, which is from the compressor. then i used this formula h= hi - i(delta h) where i is my 10 segments, calculated this enthalpy for 10 segments, by doing this i can get the enthalpy at 10 points and finally calculate x by x=(hi-hf)/(hg-hf) where hf and hg is my enthalpy at saturated condensing temp and pressure.
i don't know if i am doing anything doing something wrong, or even wondering if my approach is correct.
i have been stuck in this project for too long. i wanna get over it .plz help me!
i have the internal volume of the heat exchangers.
when i calculated the quality it came out as x=[0.95,0.852,0.753,0.654,0.556,0.457,0.359,0.260,0.161,0.063]
[link] [comments]
No comments:
Post a Comment