I am looking for a pump unit with the following requirements
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The inlet temperature of the medium is -162°C, and the outlet temperature is required to be above 0°C. It is possible to increase or decrease the pressure of the medium; the purpose is to help raise its temperature. Is there such a pump?
Flow rate, head, solid content, medium properties, etc., to facilitate selection
Medium: LNG, temperature -162°C, flow rate 1000 Nm3/h, liquid; no requirement for head pressure, no energy output.
I don’t want to use a heat exchanger; the pump is just one of the components.
With such high flow rates, it must be difficult to convert mechanical energy into heat energy; adding heat tracing to the pipes might be a better way to achieve this
How can it be said that no energy is output? With a flow rate of 1000 m3/h, 1000 cubic meters need to be transported in one hour. If the transfer is within the same container, heating is possible, but when transferring from one container to another, it becomes quite difficult to achieve heating.
I have a question: based on the calculation using PV=nRT, doesn’t this have anything to do with flow rate? Is this formula still not applicable, and another calculation method must be used?
In my case, the fluid from the container goes into the pump; after it comes out of the pump, it is used right away
Without cycling, just one application of pressure – can this raise the temperature?
My knowledge isn’t as extensive as yours; perhaps your formula is correct. Heat is definitely generated during the transfer process, but the temperature difference you’re referring to should not be achieved in this case. Therefore, if a fixed amount of material is transferred in a cyclic manner, there will be a cumulative increase in temperature, thereby reaching the desired temperature. It depends on the duration of this cyclic transfer