How can efficiency of thermal power plant be improved?
Table of Contents
How can efficiency of thermal power plant be improved?
The efficiency of a thermal power plant can be improved by either energy conservation within the system or expansion of differences between initial steam parameters and final steam parameters.
What is specific coal consumption?
Coal used to produce one unit of energy is termed as ‘Specific Coal Consumption’ (SCC). SCC is arrived at by dividing the quantity of coal consumed by the number of units of electricity generated by the station, for a given period.
How can we reduce specific steam consumption in turbine?
Lowering the steam inlet pressure will hampers the turbine efficiency and steam consumption in the turbine will increase. Similarly at higher steam inlet pressure energy available to run the turbine will be high, which in turn will reduce the steam consumption in the turbine.
How can I reduce the energy consumption of my boiler?
Ways to reduce boiler, steam and process heating costs
- Implement heat recovery.
- Add operational controls and a variable speed drive to your system.
- Insulate piping.
- Regular maintenance.
- Measure and assess the performance of your system.
How can we achieve high thermal efficiency in a power plant Mcq?
Explanation: The thermal efficiency can be effectively increased by decreasing the pressure in the condenser.
How do you calculate specific consumption of coal?
DETAILS OF CALCULATIONS:
- POWER OUTPUT.
- = 660 MW.
- TOTAL ENERGY DELIVERED @ 660 MW FOR A PERIOD OF ONE HOUR =
- 660MWH.
- Taking Efficiency = 37.96 \% and 90 \% PLF.
- Input = 660* 103 x 0.9 x 860 kcal / 0.3796 = 1345732.35 Kcal.
- (1 KWH = 860kcal)
- Design calorific value of coal = 3300 Kcal/ kg.
How is coal consumption measured?
Total coal consumption of AY and BY can be calculated by the GCV, GHR and generation. By comparing the GCV of AY and BY and multiplying it with the BY coal consumption, we can get the normalized coal consumption.
What is specific steam consumption of turbine?
Specific steam consumption is the amount of steam a locomotive’s cylinders consume. It can be measured in kWh or KJ.
What type of measures you can implement to Minimise thermal energy losses of a boiler?
PROPER BOILER OPERATION
- Keep the boiler clean.
- Remember, one millimetre of scale build-up can increase fule consumption by two percent.
- Keep unwanted air out.
- Blowdown water – dollars down the drain.
- Maximize hot condensate return.
- Flue gas.
How can we reduce the emissions from coal-fired power plants?
Optimising existing plants so they reduce emissions and increase the amount of electricity produced with the same amount of coal. Continuing to develop and refine best-available combustion technology, including circulating fluidised-bed (CFB) technology, which includes supercritical and ultra supercritical combustion.
What is the cost of coal consumed by 100 MW power plant?
The cost of coal consumed by 100 MW power plant is (53.8 x 65) 3497 $ /hr. A 100 MW unit produces 100,000 units of electricity. So the cost of coal per unit of electricity is (3497/100,000) 3.5 cents per unit.
What are the factors that affect the emissions from thermal power plants?
Emissions from thermal power plants are influenced by many factors. emissions are influenced by the chemical composition (particularly carbon and sulfur content) of coal and the coal usage per unit of electricity. NO emissions are influenced by the excess air used during combustion and the coal usage.
Why are coal-fired power plants so popular?
Coal-fired power plants play an important role in providing energy at low prices. The reality is that coal is abundant, efficient, and less expensive than most other energy options and will remain an important part of our energy future.