Coolpack flow rate
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Most of our carriers make three attempts to deliver a package. What happens if I am not available to sign for my order? If you will not be at the shipping address to accept delivery of your product, consider shipping the item to an address where you or someone you trust will be available to sign for your package. Most of our shipments contain valuable equipment and we like to ensure that our customers receive their products safely. Why do you require a signature to receive a package? I have a compressor in mind and I want to cool a known load in Watts, and what I want to calculate is how cold the compressor is capable of holding that load.Can I have my order redirected to another address if my order has already been dispatched? That's generally the way these problems go for me. Really though, this problem is usually worked the other way around, with a compressor in hand and you want to know the performance. Tiborr's second equation is fine, that'll give you the required mass flow, which you can convert into your required suction gas volume flow. With a small hermetic there are large power losses in converting electricity to compressor input shaft power. You can't use Tiborr's first equation, this is more of a theoretical equation and the W is compressor shaft power.
Coolpack flow rate software#
I use software to calculate the suction gas density. Then I use the VE at my pressure ratio of interest to calculate actual volumetric displacement at the condition I'm interested in. This number is very important and the VE is generally only about 60% or less, and it's a fairly reliable function of pressure ratio. Next what I do is calculate the actual volumetric efficiency of the specsheet test conditions. I don't know what any compressor speed is actually since I haven't measured it, but I use 3450RPM and 2875 RPM. The motors have a slip so they are not 36 RPM for 60 and 50Hz. I do that calculation by using the actual specsheet data, and correcting for the conditions I'm interested in. volume to density (kg/m3), multiply it with your volume flow (m3/min) and there you have your mass flow (kg/min).
You then take the density of your freon at certain temperature. enthalpy prior compression / after evaporationĭensity of refrigerant changes with the state (liquid, gaseus) in which the freon is.īut yes, 50Hz compressor ~ 3000RPM which at. energy flow of evaporator (cooling power) You could also calculate m0 (mass flow) from this equation: enthalpy constant entropy (s=const.) after compression In order to calculate mass flow you need to know the W not W