Steam Condenser Functions and Benefits

What is the main purpose of a steam condenser?

To condense steam and absorb heat released by it

Why does a condensing unit have higher thermal efficiency compared to a non-condensing unit?

Because it allows the steam to expand to a greater extent

Which organ of a Steam Condensing Plant is responsible for removing the condensed steam, air, and uncondensed water vapour and gases from the condenser?

Wet air pump

What is the function of the hot well in a Steam Condensing Plant?

To collect and discharge the condensate and provide boiler feed water Signup and view all the answers

Which component of a Steam Condensing Plant is responsible for removing heat released by steam?

Condenser Signup and view all the answers

How does a condensing unit benefit the available heat energy for converting into mechanical work?

By allowing the steam to expand to a greater extent Signup and view all the answers

What is the function of a turbine nozzle in an impulse turbine?

Converts kinetic energy into shaft work Signup and view all the answers

What is the purpose of the throat in a convergent-divergent nozzle?

To allow steam expansion without changing velocity Signup and view all the answers

Why does a convergent-divergent nozzle produce steam at higher velocities than a convergent nozzle?

Because of higher expansion ratio Signup and view all the answers

What effect does internal friction of steam have on nozzle efficiency?

Increases the enthalpy drop Signup and view all the answers

Which factor contributes to frictional losses in a convergent-divergent nozzle?

Conversion of kinetic energy into heat Signup and view all the answers

What is the adiabatic assumption about the flow of steam through a nozzle?

Neither heat is supplied nor rejected during expansion Signup and view all the answers

What type of surface condenser has the air suction at the top and the steam enters at the bottom?

Inverted flow type Signup and view all the answers

Which type of surface condenser allows the exhaust steam to flow in a direction right angle to the direction of flow of water?

Down flow type Signup and view all the answers

What is the underlying principle of an evaporative condenser?

Evaporating water under partial pressure Signup and view all the answers

What is a key advantage of using a surface condenser?

Condensate can be reused for boiler feed water Signup and view all the answers

Which factor contributes to reducing the pressure drop of steam in a central flow type condenser?

Large passages for steam flow Signup and view all the answers

What distinguishes a regenerative type condenser from other types?

Applies a regenerative method of heating the condensate Signup and view all the answers

Why is it important to clean the cooling water used in surface condensers?

To avoid dust accumulation in tubes Signup and view all the answers

What is the purpose of a non-return valve provided at the exhaust steam inlet?

To prevent failure of cooling water supply to condenser. Signup and view all the answers

What is the formula to calculate the corrected vacuum in mm of Hg?

760 - (Actual barometric height - Actual vacuum) Signup and view all the answers

What is the formula for vacuum efficiency?

Actual vacuum/Maximum obtainable vacuum Signup and view all the answers

What does condenser efficiency measure?

The difference between inlet and outlet temperatures of cooling water Signup and view all the answers

What is the purpose of a cooling tower in power plants?

To cool the hot water from the condenser for reuse Signup and view all the answers

Which factor does NOT affect the cooling of water in a cooling tower?

Temperature of hot water Signup and view all the answers

What distinguishes natural draught cooling towers from mechanical draught cooling towers?

Usage of fans for air circulation Signup and view all the answers

What are some advantages of concrete hyperbolic cooling towers over mechanical towers?

Lower initial cost Signup and view all the answers

What is the main function of a steam nozzle?

To drive steam turbines with high-velocity steam jet Signup and view all the answers

Which classification is NOT used for cooling towers based on material composition?

Mechanical draught Signup and view all the answers

In a natural draught cooling tower, how is heat removed from falling water?

By direct contact with rising air and evaporation Signup and view all the answers

What is the difference between a jet condenser and a surface condenser?

In a jet condenser, the exhaust steam and water come into direct contact, while in a surface condenser they do not. Signup and view all the answers

What is the purpose of a baffle plate in a low level jet condenser?

To ensure proper mixing of steam and cooling water Signup and view all the answers

Which type of jet condenser does not require an extraction pump?

High level counter-flow Signup and view all the answers

What is the purpose of the perforated trays in a low-level counter-flow jet condenser?

To break up water into jets Signup and view all the answers

What is another name for a high-level counter-flow jet condenser?

Barometric condenser Signup and view all the answers

What is the function of an air suction pump in a low level jet condenser?

To remove air from the system Signup and view all the answers

Where does the cold water flow in an ejector condenser?

Cold water flows downward through hollow cones. Signup and view all the answers

What happens to the pressure energy of condensed steam, cooling water, and air in an ejector condenser?

It decreases to atmospheric pressure. Signup and view all the answers

Steam Condenser Functions and Benefits

Questions and Answers

What is the main purpose of a steam condenser?

Why does a condensing unit have higher thermal efficiency compared to a non-condensing unit?

Which organ of a Steam Condensing Plant is responsible for removing the condensed steam, air, and uncondensed water vapour and gases from the condenser?

What is the function of the hot well in a Steam Condensing Plant?

Which component of a Steam Condensing Plant is responsible for removing heat released by steam?

How does a condensing unit benefit the available heat energy for converting into mechanical work?

What is the function of a turbine nozzle in an impulse turbine?

What is the purpose of the throat in a convergent-divergent nozzle?

Why does a convergent-divergent nozzle produce steam at higher velocities than a convergent nozzle?

What effect does internal friction of steam have on nozzle efficiency?

Which factor contributes to frictional losses in a convergent-divergent nozzle?

What is the adiabatic assumption about the flow of steam through a nozzle?

What type of surface condenser has the air suction at the top and the steam enters at the bottom?

Which type of surface condenser allows the exhaust steam to flow in a direction right angle to the direction of flow of water?

What is the underlying principle of an evaporative condenser?

What is a key advantage of using a surface condenser?

Which factor contributes to reducing the pressure drop of steam in a central flow type condenser?

What distinguishes a regenerative type condenser from other types?

Why is it important to clean the cooling water used in surface condensers?

What is the purpose of a non-return valve provided at the exhaust steam inlet?

What is the formula to calculate the corrected vacuum in mm of Hg?

What is the formula for vacuum efficiency?

What does condenser efficiency measure?

What is the purpose of a cooling tower in power plants?

Which factor does NOT affect the cooling of water in a cooling tower?

What distinguishes natural draught cooling towers from mechanical draught cooling towers?

What are some advantages of concrete hyperbolic cooling towers over mechanical towers?

What is the main function of a steam nozzle?

Which classification is NOT used for cooling towers based on material composition?

In a natural draught cooling tower, how is heat removed from falling water?

What is the difference between a jet condenser and a surface condenser?

What is the purpose of a baffle plate in a low level jet condenser?

Which type of jet condenser does not require an extraction pump?

What is the purpose of the perforated trays in a low-level counter-flow jet condenser?

What is another name for a high-level counter-flow jet condenser?

What is the function of an air suction pump in a low level jet condenser?

Where does the cold water flow in an ejector condenser?

What happens to the pressure energy of condensed steam, cooling water, and air in an ejector condenser?

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