What is the pressure of steam turbine?

In the biggest turbines, in large fossil-fuel power plants, the steam pressure can be as high as 20–30MPa (3000–4000 psi or about 200–270 times atmospheric pressure). A small, 10 megawatt steam turbine is roughly the same size as a Greyhound bus (a large single-deck passenger coach).

What is the maximum pressure of steam?

Modern steam plants designed for high efficiency utilise supercritical steam condition (up to 250 bar, 565 à‚°C/565 à‚°C), which is so called because the temperature and pressure of water within the boiler are raised to a level where a distinction can no longer be made between the liquid and gaseous phase.

How much pressure is in a steam plant condenser?

In a typical wet steam turbines, the exhausted steam condenses in the condenser and it is at a pressure well below atmospheric (absolute pressure of 0.008 MPa, which corresponds to 41.5°C). This steam is in a partially condensed state (point F), typically of a quality near 90\%.

How high pressure steam is produced?

Water expands 1600 times to form steam, which can carry large amounts of heat. This makes water an economical and ideal raw material for generating heat and power. High pressure boilers heat water to create steam at over 15 psi and have water pressure over 160 psig.

What is a high pressure turbine?

High pressure turbine: The high pressure (HP) turbine (see Figure 1) is the first main engine turbine to receive steam from the main steam system. It is designed to efficiently extract work out of high pressure steam. The HP turbine is a pressure-velocity compounded, single axial flow, non-condensing impulse turbine.

What is high pressure steam used for?

High-pressure steam boilers are essential for providing higher energy transfer to down-stream point-of-use equipment. High-pressure steam is also used directly in industrial processes such as vulcanizing rubber, food processing, and manufacturing other goods.

What is low pressure steam?

Low-pressure steam heating is just what it sounds like: the steam from the boiler is pushed out to the building at a low pressure as opposed to high. Low-pressure boilers generally stay between 10 and 15 psi and the temperature is maintained under about 300 degrees F.

Which part of thermal power plant has steam pressure less than that of atmosphere?

condenser
Since the condenser temperature can almost always be kept significantly below 100 °C where the vapor pressure of water is much less than atmospheric pressure, the condenser generally works under vacuum.

How does steam pressure work?

When steam condenses, its volume is dramatically reduced, which results in a localised reduction in pressure. This pressure drop through the system creates the flow of steam through the pipes. The steam generated in the boiler must be conveyed through the pipework to the point where its heat energy is required.