Question

Draw the schematic arrangement for a gas power plant.

Answer 1

A gas power plant typically operates on a gas turbine system to generate electricity. Here's a simplified schematic arrangement of a gas power plant:

1. Gas Turbine: The primary component where natural gas is burned to create hot gases.
   

1. Compressor: Air is compressed to a high pressure before mixing with fuel.
   

1. Combustion Chamber: Natural gas is mixed with compressed air and burned, producing hot exhaust gases.
   

1. Turbine: The hot gases expand and pass through the turbine, causing it to rotate.
   

1. Generator: The rotating turbine is connected to a generator, which converts mechanical energy into electrical energy.
   

1. Exhaust: The exhaust gases exit the turbine after passing through it.
   

1. Heat Recovery Steam Generator (optional): In combined-cycle plants, waste heat from the exhaust gases is used to generate steam for a steam turbine, increasing efficiency.
   

1. Cooling System: The plant may have a cooling system, like a cooling tower, to manage excess heat.
   

1. Transmission Lines: The generated electricity is transmitted through high-voltage lines.
   

Schematic Layout:

`
            +-----------------+
            |    Gas Fuel     |   
            +-----------------+
                    |
                (Fuel Line)
                    |
            +-----------------+        +-------------------+
            |    Compressor    |------->|  Combustion Chamber|
            +-----------------+        +-------------------+
                    |                         |
                  Air                       Hot Gases
                    |                         |
                    v                         v
            +-----------------+        +-------------------+
            |     Turbine      |------->|    Generator      |
            +-----------------+        +-------------------+
                    |                         |
                  Exhaust                  Electricity
                    |                         |
            +-----------------+        +-------------------+
            |    Exhaust Gases |------->|   Heat Recovery   |
            |   (Optional)     |        |   Steam Generator |
            +-----------------+        +-------------------+
                      |
                (Cooling System)
                      |
            +---------------------+
            |  Transmission Lines |
            +---------------------+
`

This is a simplified version. If you’re dealing with a combined cycle power plant, you'd also have a steam turbine and heat recovery system in the process, improving efficiency by utilizing the waste heat from the gas turbine.

Let me know if you'd like a more detailed explanation of any specific part!