Electrical Power Plant

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.

A central generating station has an annual factor report as follows:
Plant capacity factor = 50%
Load factor = 60%
Use factor = 45%
Reserved = 10,500 kW
Determine the rated capacity of the station.

A thermal power plant has two generating sets rated 600 kW and 800 kW respectively being operated at rated capacity. The total coal consumption is 680 kg per hour. If the coal has a heating value of 20,000 joules per gram, what fraction of heat produced from the coal is converted into useful electrical energy?

The tailwater and the headwater of a hydro-electric power plant are 150 m and 200 m, respectively. What is the water power if the flow is 15 m³/sec and a head loss of 10% of the gross head?

A three-phase motor driven pump at 1,800 rpm is discharging 500 gpm of water at a head of 25 meters. The pump efficiency is 75%. Determine the horsepower of the motor.

A certain amount of fuel can produce 10 quads of energy. In how many days will the fuel be totally consumed if it is used to satisfy a demand of \(10^{13}\) BTU/day at a power plant with an overall efficiency of 20 percent?

A 100 MW power station delivers 100 MW for 2 hours, 50 MW for 8 hours and is shut down for the rest of each day. It is also shut down for maintenance for 60 days each year. Calculate its annual load factor.

Estimate the average power output of a wind turbine having a blade diameter of 10.7 m if the wind velocity ranges from 10 to 30 miles per hour.

A power plant consumes 3,600 tons of coal per day. If the coal has an average energy content of 10,000 BTU/lb, what is the plant's power output? Assume an overall efficiency of 15%.

A 100 MW hydroelectric station is supplying full load for 10 hrs in a day . Calculate the volume of water which has been used. Assume effective head of the water as 200 m and the overall efficiency of the station as 80%. Assume 1 m³ of water = 1,000 kg.

A power plant has an overall efficiency of 30%. If this plant consumes 4,200 kilograms of coal per hour, estimate the total electric energy produced in one day. Assume the calorific value of the coal is 5,000 kcal per kilogram.

A certain amount of fuel can produce 10 quads of energy. In how many days will the fuel be totally consumed if it is used to satisfy a demand of \(10^{13}\) BTU/day at a power plant with an overall efficiency of 20 percent?

What is the overall efficiency of the turbine if the power developed is 12 MW at a head of 150 meters and the nozzle discharges 10 cubic meters each second?

A three-phase motor driven pump at 1,800 rpm is discharging 500 gpm of water at a head of 25 meters. The pump efficiency is 75%. Determine the HP of the motor.

A power plant consumes 100,000 pounds of coal per hour. The heating value of the coal is 12,000 BTU per pound. The overall plant efficiency is 30%. What is the kW output of the plant?

In how many years will the energy consumption of the Philippines be quadrupled at 6.9 percent growth rate?

A hydroelectric generating station is supplied from a reservoir of capacity \(5 \times 10^{6}\) m at a head of 200 meters. Find the total energy available in KWHR if the overall efficiency is 75 .

A generating station to supply four regions of load whose peak loads are 10 MW, 5 MW, 8 MW, 7 MW. The diversity factor at the station is 1.5 and the average annual load factor is 60 . Calculate the annual energy supplied by the station.