Chapter 8, Problem 8.35CU

Why is humans are very dependent on the used of fuels to produce power?

Consider a light fixture A "efficacy=40" to be replaced by light fixture B "efficacy=88" where there are 20 fixtures are used in a 16 m x 18 m x 3 m room with resulting illuminance of 454 Lu/m for both types, lights are used for 5400 hours per year and the grid efficiency is 35%. What is the annual amount of fuel reduction "Liters", if the power plant uses fuel with heating value = 25.56 MJ/Liters? Select one: A. 210.58 B. 178.81 C. 193.72 D. 227.24 E. 163.12

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Describe either a benefit or concern associated with nuclear power versus more conventional power production .

Question 1 For a given cogeneration plant where Q is the total input energy in kW, WT is the turbine work output in kW, QH the process heat required in kJ/h, and ms the steam flowrate in kg/h, 1.1 Explain what is meant by "cogeneration plant". State examples of industry application for cogeneration plants. 1.2 Show a typical T-S Diagram for a cogeneration plant 1.3 Prove that the efficiency of the plant is given by the equation below. Use your T-s diagram for illustrations WT + QH nco Q1

Fossil fuel power plant generates power to 5 residential household community with the following data: HS # 1 = 202 KW HS # 2 = 0.22 MW HS # 3 = 172 KW HS # 4 = 0.185 MW HS # 5 = 218 KW Diversity Factor = 80% Compute the maximum demand of the power plant in KW? A) 3,218.15 KW 2,012.50 KW 1,246.25 KW D 1,016.25

7. What kind of resources does nuclear energy require? Is it worth the effort and the investment to acquire nuclearenergy?8. Exactly how important is nuclear power and nuclear waste?

Fossil fuel power plant generates power to 5 residential household cornmunity with the following data. HS # 1= 202 KW HS # 2= 0.22 MW HS # 3=172 KW HS # 4=0.185 MW HS # 5=218 KW Diversity Factor = 80% Compute the maximum demand of the power plant in KW? 3,218.15 KW B. 2,012.50 KW (c) 1,246.25 Kw 1,016.25