peadith t1_jeffk6c wrote on March 31, 2023 at 4:51 PM

Reply to comment by wwarnout in Heat Pumps could supply 20% of building heating by 2030. Supercritical CO2 heat pump sales in Japan have now reached a total of 8.5 million units. by DisasterousGiraffe

At a minimum, Way higher static pressure.

AcademicGravy t1_jeg2x9h wrote on March 31, 2023 at 7:25 PM

Static pressure is usually used in the HVAC world as a measurement of air pressure within ductwork. I'm not sure if you mean the high side pressure of the system in this case maybe?

peadith t1_jegg2fk wrote on March 31, 2023 at 8:53 PM

It would be a practical physical condition of operation, not jargon. What is the low side pressure of these systems when running?

AcademicGravy t1_jeh0dvv wrote on March 31, 2023 at 11:19 PM

I guess I'm just trying to say if you are referring to the pressure on the high side of a refrigeration system using the term static pressure is very confusing. The low side pressure of these systems would differ depending on the conditions the system are in. The temperature of the air going over the coil for instance would change the pressure. The static pressure in the ductwork would also be a factor on the operating pressures of the low side.