This was great! I'm studying mechanical engineering and working on a lab report about heat pumps, and your insights and enthusiasm greatly motivate me. Awesome talk!
There is a simple formula for flow rate per ton, in pounds per minute: 200/(Hd-Hs). This automatically takes subcooling and superheat into the equation, cancelling out any difference of both the latent heat of the refrigerant and the ratio of delta T at its two saturation points. Ergo, this formula works for any azeotropic refrigerant.
what if my evaporator temperature and suction temperature are different, in that case you wouldnt have a vertical line from txv out to the low pressure line. ie an evap tempt of 0-10F and suction temp of 60F how is this plotted? To me it looks like the assumption is that if your evap is the same pressure as your suction pressure then the temperature should land horizontally across it. In my current experiment that is not the case.
sir thnk u so much for your video,,,,,i like you ask you this following question given to me by my turtor: ". A refrigerator operates on the ideal vapor compression refrigeration cycle and uses refrigerant 134a as the working fluid. The condenser operates at 1.6mpa and the evaporator at -6’c. if an adiabatic, reversible expansion device were available and used to expand the liquid leaving the condenser, how much would the COP improved by using this device instead of the throttle device." can you give and an idea how i can go about it please,,,i was get confuse since only one pressure and temperature is given.
Great video. Can you do a follow on video discussing the application of different refrigerants for different applications while referencing these PH charts which would explain the refrigerant selection process. For example refrigerants for freezers and air con and fridges
i know im asking the wrong place but does someone know of a tool to get back into an instagram account..? I somehow lost my password. I would love any help you can offer me
@Leroy Aron i really appreciate your reply. I found the site through google and im trying it out atm. Takes a while so I will reply here later when my account password hopefully is recovered.
This was great! I'm studying mechanical engineering and working on a lab report about heat pumps, and your insights and enthusiasm greatly motivate me. Awesome talk!
Thank you for taking the time to discuss the P H chart and its uses. It's not often discussed anywhere. I'll be looking at this again and again
There is a simple formula for flow rate per ton, in pounds per minute: 200/(Hd-Hs). This automatically takes subcooling and superheat into the equation, cancelling out any difference of both the latent heat of the refrigerant and the ratio of delta T at its two saturation points. Ergo, this formula works for any azeotropic refrigerant.
Very nice! I just got my first system running and now I am looking to better understanding the process and math.
If the temperature increases in a isochloric (constant volume) bottle, like shown with the propane bottle, it follows the green lines up...
what if my evaporator temperature and suction temperature are different, in that case you wouldnt have a vertical line from txv out to the low pressure line. ie an evap tempt of 0-10F and suction temp of 60F how is this plotted? To me it looks like the assumption is that if your evap is the same pressure as your suction pressure then the temperature should land horizontally across it. In my current experiment that is not the case.
sir thnk u so much for your video,,,,,i like you ask you this following question given to me by my turtor: ". A refrigerator operates on the ideal vapor compression refrigeration cycle and uses refrigerant 134a as the working fluid. The condenser operates at 1.6mpa and the evaporator at -6’c. if an adiabatic, reversible expansion device were available and used to expand the liquid leaving the condenser, how much would the COP improved by using this device instead of the throttle device." can you give and an idea how i can go about it please,,,i was get confuse since only one pressure and temperature is given.
Great video. Can you do a follow on video discussing the application of different refrigerants for different applications while referencing these PH charts which would explain the refrigerant selection process. For example refrigerants for freezers and air con and fridges
very under-appreciated explaination of this topic
Thank you for that video. Could you draw a shape into that diagram for the optimal (highest possible efficiency) refrigeration cycle ?
i know im asking the wrong place but does someone know of a tool to get back into an instagram account..?
I somehow lost my password. I would love any help you can offer me
@Micah Anakin instablaster :)
@Leroy Aron i really appreciate your reply. I found the site through google and im trying it out atm.
Takes a while so I will reply here later when my account password hopefully is recovered.
@Leroy Aron it did the trick and I actually got access to my account again. I'm so happy:D
Thank you so much you really help me out !
@Micah Anakin No problem xD
Thank you very much for the explanation.
very useful! thanks for the vid
this is awesome
great video. keep it up
Nice
tnx sir