Define plant capacity factor and plant use factor. When these two factors are same?
How is the total installed capacity of a power plant decided?
A power planting costing Tk 1.1 ×1011\times 10^{11}×1011 has a useful life of 25 years. Find the amount which should be saved annually to replace the equipment at the end of that time by i) straight line method and ii) sinking fund method if the annual rate of interest is 5%. Assume that the salvage value of the equipment is Tk 4×1084 \times 10^84×108.
What is daily load curve? How plant size effect plant efficiency? Define reserve factor.
Explain the parameters to be considered for planning a power plant.
A thermal power plant consists of two 70 MW units each running for 8000 hr and one 30 MW unit running for 2000 hr per year. The energy produced by the plant is 876×106876 \times 10^6876×106 kWh per year. Determine plant load factor and plant use factor. Consider maximum demand is equal to plant capacity.
What is a load-duration curve? Elaborate its importance in power systems.
What is meant by load factor and diversity factor?
A central power station has annual factors as follows: Load factor 58.5%, capacity factor 40.9% and use factor 45.2%. The reserve carried over and above peak load is 8900 kW. Find (i) installed capacity (ii) annual energy production, (iii) hours per year the plant in service.
Why energy elements of electrical energy cost is dependent on energy output of a power plant?
Why load curve is important in power generation of a power plant?
The yearly load duration curve of a certain plant can be considered as a straight line from 20 MW to 3 MW. To meet this load, three turbine-generator units, two rated at 10 MW each and one at 5 MW, are installed. Determine (i) installed capacity, (ii) plant use factor, (iii) maximum demand, (iv) load factor.
What do you understand by “load factor and diversity factor”? Prove that the load factor of a power system is improved by an increase in diversity of load.
The following data pertain to a power plant: Installed capacity = 200 MW; Capital cost = Tk 4×10104 \times 10^{10}4×1010; Annual cost of fuel, taxes, and salaries =Tk 6×1096 \times 10^96×109; Rate of interest = 5% of the capital; Rate of depreciation = 6% of the capital; Annual load factor = 65%; Capacity factor = 55%; Energy used in running the plant auxiliaries = 4% of the total energy generated. Determine (i) the reserve capacity and (ii) the cost of power generation.
Explain the sinking fund method of calculating the depreciation.