Table of Contents
Why do we need vacuum pumps?
Vacuum pumps are used to remove air or gas molecules from a sealed volume thus creating a vacuum. The vacuum level can be controlled, for example, with a process gas at a specific pressure.
Why do we need condenser in power plant?
In thermal power plants, the purpose of a surface condenser is to condense the exhaust steam from a steam turbine to obtain maximum efficiency, and also to convert the turbine exhaust steam into pure water (referred to as steam condensate) so that it may be reused in the steam generator or boiler as boiler feed water.
Why vacuum is important in the condenser?
Now to ensure proper and continuous flow of steam to condensers at all times, vacuum must be maintained externally. A vacuum is maintained in the condenser so that steam can easily flow and more work can be extracted from the steam in the turbine; this is the reason why vacuum is maintained in condensers.
What is the purpose of installing vacuum condenser in a steam power plant?
The primary purpose of the steam condenser in a steam plant is to convert the turbine exhaust steam into water for reuse in the boiler and to create and maintain vacuum at the turbine exhaust. This is achieved by cold water circulation through tube bundles and condensing the steam on their outer surfaces.
What is vacuum condensate?
The vacuum condensate pump serves two principal functions in a steam heating system. To efficiently remove air from the steam lines thus allowing faster heat transfer through the system. To remove condensate which also enables the system to function quickly.
Why does condensing steam create a vacuum?
When matter turns from its gas phase back into its liquid phase, the molecules take up much less space and exert far less pressure. In fact, the condensing steam creates a partial vacuum—a region of much lower pressure than that of the surrounding atmosphere—inside the bottle.
What is vacuum power plant?
In a power plant, the primary use of vacuum systems is to remove air and other noncondensable gases from the shell side of the condenser in order to maintain design heat transfer and thus design vacuum.