thermal plant and CCGT efficiency

holdfast

Hello

Looking for a bit of help here. I have a project which require me 2. Describe in detail one thermal/steam plant and calculate its efficiency, specific steam consumption and CO2 emissions. Compare this with a state-of-the-art combined cycle gas turbine system of similar size, again illustrating your answer with detailed calculations regarding efficiency and CO2 emissions?. I have the other parts of the project completed. But I am finding it hard to find such calculations. I have looked at the whitegate thermal plant and the proposed CCGT. Anyone have an idea

regards

mike

chris85

holdfast wrote: »

Hello

Looking for a bit of help here. I have a project which require me 2. Describe in detail one thermal/steam plant and calculate its efficiency, specific steam consumption and CO2 emissions. Compare this with a state-of-the-art combined cycle gas turbine system of similar size, again illustrating your answer with detailed calculations regarding efficiency and CO2 emissions?. I have the other parts of the project completed. But I am finding it hard to find such calculations. I have looked at the whitegate thermal plant and the proposed CCGT. Anyone have an idea

regards

mike

I am actually doing some stuff on Gas Turbines at the moment. For calculations go for one of the books which is aimed at students (It think you are student as its a project with a good few pars, correct me if Im wrong :rolleyes:)

Try "Fundamentals of Thermodynamics" which is published by Wiley which are good at the engineering books.

http://he-cda.wiley.com/WileyCDA/HigherEdTitle.rdr?productCd=0471152323

Nukem

A book i used to use in college is Applied Thermodynamics for Engineering Technologists. It gives some great worked examples with detailed calcs.

http://www.play.com/Books/Books/4-/201320/Applied-Thermodynamics-for-Engineering-Technologists/Product.html

Teg Veece

You can work out the Carnot efficiency easily enough. This is the absolute maximum possible efficiency of your plant but in practice it would be a lot less.

Its awhile since I've done this but I think all you need is the temperature of the boiler (T1) and the temperature of the condenser (T2).

The Carnot efficiency = [1 - (T2/T1)] * 100%

Just make sure you change your temperatures into Kelvin before filling them in.

So a steam power plant with a boiler temp of 600 degrees Celcius (873 K) and a condenser at 25 degrees Celcius (298 K) will have a maximum possible efficiency of about 66% but in reality it would be about half of this because of other losses.