A large electrical power station generates 950 MW of electricity with an efficiency of 37.0%. (a) Calculate the heat transfer (in J) to the power station, Q in one day. (b) How much heat transfer Q. (in J) occurs to the environment in one day? (c) If the heat transfer in the cooling towers is from 35.0°C water into the local air mass, which increases in temperature from 18.0°C to 20.0°C, what is the total increase in entropy (in J/K) due to this heat transfer? J/K

A large electrical power station generates 950 MW of electricity with an efficiency of 37.0%. (a) Calculate the heat transfer (in J) to the power station, Q in one day. (b) How much heat transfer Q. (in J) occurs to the environment in one day? (c) If the heat transfer in the cooling towers is from 35.0°C water into the local air mass, which increases in temperature from 18.0°C to 20.0°C, what is the total increase in entropy (in J/K) due to this heat transfer? J/K

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

See similar textbooks

Similar questions

There are four thermostatically-controlled electric space heating loads of 1 p.u. power each. It is found that under certain weather conditions and for 1 p.u. voltage, they are on for four minutes and off for four minutes. The on-off cycle of the four heaters are initially symmetrically distributed so that two heaters are on at any point of time. The voltage suddenly drops to 0.894 p.u. Calculate the new on and off times for constant energy.
TUTORIAL PROBLEMS FOR STEAM STATION 1. A generating station has an overall efficiency of 15% and 0-75 kg of coal is burnt per kWh by the station. Determine the calorific value of coal in kilocalories per kilogram. [7644 kcal/kg]
An energy meter measure the amount of power consumed by the load with respect to time. It is connected to a load of 20A, 230V at 0.55 power factor for an hour which rotates 325 revoluation for revolutions made by the meter. one unit of energy. If so, calculate the O a. 822.25 O b. 850.25 O C. 810.25 O d. 800.25 An energy meter measure the amount of power consumed by the load with respect to time. It is connected to a load of 20A 230V at 0.55 power factor for an hour which rotates 325 revoluation for an one unit of energy. If so, calculate the percentage of error when it rotates 467 revolutions. O a. -43.92% Ob.-43.24% Oc 44.29% O d. 45.929 O Type he
Which is TRUE about Geothermal Energy? A. It can be generated either in geothermal power plants or geothermal heat pumps. B. Heat cannot be recovered using different geothermal technologies C. Geothermal technologies determine what can be done with it. D. The temperature of geothermal water decreases with depth, depending on the thermal gradient.
1.) A windmill produces on average 6 kW of electrical power over an 8-hr period. The electricity is used to charge storage batteries. In the charging process the batteries increase in temperature, causing them to lose heat to the surroundings at a rate of 500 Btu/hr. Determine the total energy (in Btu) stored in the batteries during this 8-hr period.
Write about any two geothermal power plants. Write the Significance of Geothermal Energy.
c) A power plant delivers 100 MW from 6 am to 2 pm and 150 MW from 8 pm to 12 am. The power plant will shut down for maintenance in some duration of each year. The energy generated per year is 335.5 × 10³ MWh. Assuming the 80% of the plant capacity is the maximum demand, determine: i. Daily energy production ii. The actual day of the power plant is operated, and the day of power plant is shut down for a year. ii. The average load iv. The annual load factor. V. The capacity of the power plant. vi. The reserve capacity of the power plant.
A power plant has efficiency of 21 % as compared to Biomass power plants. This power plant can be ................................. a. Thermal Power Plants b. Geothermal Power Plant c. Thermal Power Plant d. Solar Power Plant
Discuss the prime mover and the conversion of power energy for thermal station
What is Energy crisis? What are the causes of energy crisis? Explain the consequences and possible solutions of the energy crisis. Please write the sources
A 2 KW, 230volt electric heater is needed to raise the temperature of a 10 lbs water for 30 minutes. If the initial temperature of the water is 53 °F, determine the final temperature of water in °F. Assume a heat loss of 22%.
If the wind is blowing at 10 meters/second, what is the maximum power that can begenerated from the wind hitting the wind turbine 30m blades. Assume the wind turbine isat sea level.