PE POWERPLANT

A certain amount of fuel contains 25 x 10^10 BTU of energy. What is the equivalent of this energy in Kcal?

6.3 x 10^10

The net energy required of a certain country is 5 x 10^6 GWh. What is the equivalent of this energy in quads?

17.06

A certain amount of fuel can produce 15 quads of energy. Calculate the available energy in Kcal.

3.78 x 10^15

An amount of fuel containing 20 quads of energy is used to satisfy an average demand of 10^13 BTU/day in a power with an over all efficiency of 20%. In how many days will the fuel be totally consumed?

400

In a power station, 4 x 10^4 GWh of energy is to be produced in one year using coal with energy content of 900 watt-years/ton. How many tons of coal will be required?

5.07 x 10^6

In a power station, 4 x 10^4 GWh of energy is to be produced in one year using natural gas with energy content of 0.03 watt-years/ft^3. How many tons of coal will be required?

15.22 x 10^10

To generate 1 KWh of energy a power plant burns 0.9 lb of coal with a heating value of 12500 BTU/lb. What is the heat rate of the plant in Kcal/KWh,

2836

A power station has a connected load of 25 MW and generates 87.6 GWh/year. If the load factor is 50%, find the demand factor.

0.8

During a 30 day period, the load factor of a power station is 55% and maximum demand is 100MW. How much energy is MWh was generated during this period?

39600

A power plant has maximum demand of 120 MW, connected load of 160 MW and annual generation of 613,200 MWh. Find the load factor,

0.583

A generating station has a connected load of 130 MW, maximum demand of 90 MW, annual load factor of 80% and annual capacity factor of 50%. Find the installed capacity of the plant in MW

144

A generating power station has 2 – 50 MW units operating 7200 hours per year and 1 – 25 MW unit operating 300 hours per year. The output energy of the station is 477 GWh/year. Calculate the plant use factor

0.6

A coil fired power station supplies four substation with maximum demands of 60 MW. 50 MW, 35 MW and 25 MW, respectively. Find the total maximum demand if the diversity factor is 1.25

136

Find the output hp of a heat engine driving an alternator consuming 28 lb/hour of fuel with a heating value of 16900 BTU/lb and its coefficient of performance is 2.5

74.4

A diesel power plant has fuel consumption of 0.4 lb per KWh of energy generated and the heating value of diesel is 30,000 BTU/lb. Find the engine efficiency if alternator efficiency is 92%.

0.309

A hydro-electric power station has a reservoir capacity of 10^7 m^3 of water at a head of 160m. What is the total available energy in MWh from the plant if hydraulic and alternator efficiencies are 85% and 95%, respectively?

3520.7

. A hydro-electric power station has an effective head of 150m and average discharge rate of 20 m^3/sec. Assuming turbine and alternator efficiencies to be 90% and 95% respectively. Find the available power in MW.

25

If the reservoir of a hydro-electric power station has a catchment area of 45 x 10^6 m^2, in water level become 1 m while the average discharge rate is maintained at 20 m^3/sec

26

A wind generator with an efficiency of 90% has an output power of 61.7 KW. If the average wind velocity is 30 kph, find the blade diameter in meters

20

The maximum tidal head available is 7m. How much average power in MW/Km^2 of tidal bay area that can be generated in this area?

10.73

What must be the area of the tidal bay in km^2 in order to generate 1200 MW if the maximum tidal head available is 7m?

111.83

In a certain country, the energy consumption is expected to triple in 12 years. Calculate the percent growth rate

9.15

The proven equivalent fuel reserve for power generation of a country is 3 x 10^6 MW years. The present maximum demand is 200 GW and expected power consumption growth rate us 2.1%. How many years will the fuel reserve last?

13

Two steam turbines each rated 20,000 KW drive a total load of 30,000 KW. The steam rates in Kg/h are: T1 = 2000 + 10 P1 – 0.0001 P1 2 and T2 = 5000 + 7 P2 – 0.0005 P2 2 , where P1 and P2 are in KW. The best division of the load will be P1 = KW and P2 = KW

20000, 10000

. What is the average output power of a wind turbine in KW having a blade diameter of 60 ft if the wind velocity ranges from 10 to 30 miles per hour?

124

A hydro – electric power station with a total head of 200m has a reservoir containing 189.4 x 10^6 m^3 of water. How much energy in MWh that can be generated from the reservoir if the over-all plant efficiency is 80%

82578

A certain amount of fuel containing 249 x 10^10 BTU of energy is converted into electric energy in a power station. If the fuel will last for 1 year and that the over all plant efficiency is 25%, what is the average demand on the station in MWh/day?

500

A generating station has a connected load of 80 MW, annual demand factor of 80% , annual load of 75% annual capacity factor of 70% and plant use factor of 85%. What is the annual energy produced in MWh?

420,480

In a power station, 40 x 10^6 MWh is to be produced in one year, 60% from coal and 40% from natural gas. The energy content of coal is 950 watt-years/metric ton and that of natural gas is 0.035 watt-year per cubic foot. How much coal in metric tons is needed?

2.88 x 10^6

In a power station, 40 x 10^6 MWh is to be produced in one year, 60% from coal and 40% from natural gas. The energy content of coal is 950 watt-years/metric ton and that of natural gas is 0.035 watt-year per cubic foot. How much natural gas in cubic meter is needed?

147.88 x 10^7

A power plant is supplying four sub-stations with maximum demands of 25 MW, 33 MW, 27 MW and 32 MW. The sub-station diversity factor is 1.25. Find the total maximum demand on the power plant in MW

93.6

A power plant consumes 3600 tons of coal per day. If the coal has an average energy content 10,000 BTU/lb. What is the plants power output? Assume an over-all efficiency of 15%

132 MW

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 1013 BTU/day at a power plant with an over-all efficiency of 20%

200 days

A hydroelectric generating station is supplied from reservoir capacity of 5 x 106 m3 at a head of 200m. Find the total energy available in kWh if the over-all efficiency is 75%.

2.044 x 106 kW-hr

A wind generator with an efficiency of 80% has a blade diameter of 20m. If the wind velocity is 30 kph, how much power in kW is obtained from the generator?

54.95 kW

The metering of a power customer was read and gave the following data The metering of a power customer was read and gave the following data

kWh = 200000 kVar-hr = 180000 Max Demand = 380 kW Billing days = 30 What is the load factor?

73.1%

what is the total energy generated by the station in kWh in a year if its maximum demand and annual load factor is 150 kW and 45% respectively.

591300 kWh

A power plant is driven by a turbine at the rate of 10 m3 /s and with a head of 235m. If the plant efficiency is 0.65, calculate the power plant output.

14984.78 kW

A small wind generator is designed to generate 50kW of power at a wind velocity of 25 mph. What is the approximate blade diameter?

36 ft

A 100 MW power plant burns 0.4 kg coal with heating value of 7.2 x 106 cal per kg to produce 1 kWh. If the power plant acts as a base load, how many tons of coal per day is consumed if the power plant operates 24 hrs per day

960 kg/day

A generating plant has a minimum and maximum outputs of 50 MW and 100 MW, respectively. It generates an energy of 1,800,000 kWh for 24 hrs at an average power factor of 90%. What is the load factor?

75%

A hydraulic turbine receives water from a reservoir at an elevation of 100m above it. What is the maximum water flow in kg/s to produce a steady turbine output of 50 MW?

50960 kg/s

A power plant has a maximum demand of 100MW and a connected load of 160 MW. For a 500,600 MWh annual generation, find the demand fa

0.625

A power station is to supply four regions of loads whose peak values are 10,000 kW, 5000 kW, 8000 kW and 7000 kW. The diversity factor of the load at the stations is I05 and the average annual load factor is 60%. Calculate the annual energy supply by the station.

105.12 x 106 kWh

A diesel power plant has an over-all efficiency of 30%. If the heat value of diesel is 18000 BTU/lb and cost 6 P/L, how much is the fuel cost of production per kWh of energy. The density of diesel is 900 g/L.

1.91 P/kw-h

A power station has a peak demand of 80MW and load factor of 0.6. If the capacity factor is 50% of utilization factor is 80%, find the daily energy produced is MWh.

1152 MWh

If a generating station has a maximum demand for the year of 18000 kW and a load factor of 30.5%, how many units are generated per year

48,092,400 kWh

What is the total energy generated by the station in kWh in a year if its maximum demand and annual load factor is 150 kW and 45% respectively

591300 kWh

A 55000 kW thermal power plant of NPC delivers an annual output of 283000 MWH of a peak load of 44 MW. The annual load factor of the plant is nearest to

0.73

The tailwater and the headwater of a hydro-electric plant are 150 m and 200 m, respectively. What is the water power if the flow is 15 m^3/sec and a head loss of 10% of the gross head?

6621.75 kW

A hydroelectric generating station is supplied from a reservoir of capacity 2 x 10^8 ft^3 at a head of 500 ft, what is the total available electric energy in MWhr if the hydraulic efficiency is 0.8 and the electrical efficiency is 0.9?

1690

The maximum tidal head available for proposed tidal power plant is 7m. What must be the area of the tidal bay in square kilometer to generate an average of 1200 MW of power?

112

The net energy required for a certain country in 2000 was approximately 3 x 10^6 GWH. What is the equivalent of this energy in quad?

10.24

The total generating capacity of a power plant is 1600 KVA. The total connected load is 2500 KVA. Average load is 1145 KVA. The maximum power demand is 1150 KVA. What is the plant factor?

71.56%

A power plant gets water from a darn from a height of 100 m at the rate of 1000 cubic meter per minute. If the overall efficiency of the plant is 75%, what is the KW output of the plant?

12,250 KW