Steam pressure and utilization issues
Thread Content
May I ask that the pressure of low-pressure heated saturated steam provided by typical industrial plants is usually between 0.5 and 0.7 Mpa. For example, the latent heat of vaporization is higher for saturated steam at pressures of 0.3–0.5 Mpa, and the enthalpy value also differs little; then why isn’t this pressure range commonly used?
Hehe! The pressure selection is generally determined based on process requirements, taking into account pipeline transportation and the recovery of condensed liquid; the pressure of low-pressure steam should be no less than 0.4 MPag, while the pipeline pressure is usually set at 0.5–0.7 MPag.
The utilization of steam primarily involves steam-using units and equipment; however, these units are often located at a certain distance from the steam supply source. Taking into account the pressure required for condensate recovery as well as pipeline losses, high pressure is clearly superior to low pressure
What is taken into account when using pipeline networks for transportation, regarding the pressure drop in those networks? And what factors are considered in the recovery of condensate? Condensate can also be recovered at 0.4Mpa.
Is the investment for boilers the same?
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The same goes for low-pressure steam boilers, which generally operate at 1.0 Mpa
This should be based on the process settings
High-voltage transmission. Electricity is also transmitted at high voltage.