Electrical Power Plant

A certain coal-fired power plant has a heat rate of \(2.88 \times 10^6\) calories per kW-hr. Coal costs P 2,500 per ton. How much is the fuel cost component of producing one kW-hr? Assume the heating value of coal used equal to 13,000 BTU/lb.

A 100 MW thermal plant has an overall efficiency of 34%. If the coal used has a heating value of 10,800 BTU per pound, calculate the coal consumption of the plant per kW-hr output.

A coal power plant has an overall plant efficiency of 28%. Coal with a heating value of 12,000 BTU per pound cost P 1.50 per pound. What is the fuel cost for producing one kW-hr?

A power plant has an overall efficiency of 30%. If this plant can consumed 4200 kilograms of coal per hour, estimate the total electric energy produced in one day? Assume the calorific value of the coal being used is 8000 kcal per kilogram.

A plant has a total operating capacity of 800 kW. The coal consumption is 1900 lbs per hour. Heating value of coal is 9,500 BTU per lb. What approximate percent of the heat in the coal is converted into useful energy?

A 100 MW coal fired power plant has an average heat rate of 9500 BTU per kW-hr. The plant load factor is 75%. The heating value of the coal is 12,000 BTU per pound. Calculate the amount of coal usage for one day.

A diesel generator set burns diesel with a heating value of 18,000 BTU per pound. The diesel engine has an efficiency of 30% and the alternator has an efficiency of 95%. Determine the fuel cost component of producing one kW-hr if diesel costs P 2.80 per pound.

A diesel electric generating unit supplies a load at 70 kW. The heating value of the oil used is 12,000 kcal per kg. If the overall efficiency of the unit is 40%, determine the mass of oil required per hour.

A 500 kW electric lighting cost P 1000 per kW installed. Fixed charges are 14%, operating cost is P 1.50 per kW-hr. The plant averages 150 kW for 5000 hrs of the year, 420 kW for 1000 hrs and 20 kW for the remainder. What is the unit cost production of electric energy?

A coal fired Power Plant with 3000 kW rated capacity costs P 15,000 per kW installed. Annual operating cost P 12 million; annual maintenance cost P 8 million; annual depreciation P 15 million; interest on investment per year 8% and cost of coal P 800 per ton. If one pound of coal is needed to generate 1 kW-hr, find the total annual cost to operate the plant. Plant capacity factor is 50%.

To produce one kW-hr, a power plant burns 0.9 lb of coal with a heating value of 13,000 BTU. What is the heat rate of the plant?

The current loads of four circuits are as follows:
Circuit No.1 = 25 amperes
Circuit No.2 = 38 amperes
Circuit No.3 = 18 amperes
Circuit No.4 = 45 amperes
If the diversity factor is 1.5, what is the minimum ampacity of the feeder conductor?

The power customer has four feeder circuits of 220 V, three-phase. The circuits have maximum demand as follows:
Circuit no. 1 = 35 A
Circuit no. 2 = 46 A
Circuit no. 3 = 72 A
Circuit no. 4 = 57 A
The diversity factor is 1.5, determine the maximum kVA demand with the customer.

A substation transformer is to serving the following loads:
Classification | Total load | Demand factor
Lighting | 300 kW | 60%
Power | 1200 kW | 80%
Heating | 500 kW | 90%
If the diversity factor among the load types is 1.5, determine the maximum demand on the transformer.

The power customer has four circuits of 220 V, three-phase. The circuits having maximum demand as follows:
Circuit No.1 = 35 A
Circuit No.2 = 46 A
Circuit No.3 = 72 A
Circuit No.4 = 57 A
The diversity factor is 1.5, the load factor is 50%, and the power factor is 80%. What is the approximate kW demand of the customer?

An industrial plant has an aggregate load of 100 kW. The demand factor is 60%. If the average total energy consumption of the plant in one year is 186 MW-hr, what is the yearly load factor of the plant?

A power plant has two 75 MW generator sets each operating at 7200 hours per year and a 50 MW generator set operating at 3000 hours per year. If the plant output is \(800 \times 10^6\) kW-hr per year, solve for the plant use factor.

The average weekly energy generated by a thermal plant is 7,000,000 kW-hr. The peak load of the plant is 75,000 kW during the week. If the plant has an installed capacity of 100 MW solve for the load factor of the plant.

A certain power plant has reserve capacity above the peak load of 10 MW. The annual factors are load factor = 59%, capacity factor = 41% and use factor = 46%. Determine installed capacity.

A certain power plant has reserve capacity above the peak load of 10 MW. The annual factors are load factor = 59% capacity factor = 41% and use factor = 46%. Determine hours per year not in service.