A 25-W compact fluorescent lightbulb (CFL) produces the light equivalent of a 100-W incandescent bulb. The population of North America is estimated to be about 305 million. Estimate the amount of coal needed to light one 100-W incandescent lightbulb for each person for one year and the amount of coal that would be saved if each incandescent bulb were replaced with a CFL. Assume the coal has a NHV of 28.5 MJ · kg-1 and the power plants are 33% efficient.
Answers (1)
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “A 25-W compact fluorescent lightbulb (CFL) produces the light equivalent of a 100-W incandescent bulb. The population of North America is ...” in 📘 Engineering if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers
You Might be Interested in
What is the most common dock design in the United state
Answers (2)
what do you expect for total head at the bottom of the reservoir with depth of y and considering the datum at the bottom of the reservoir? Explain.
Answers (1)
Air suspension in german cars
Answers (1)
A series circuit in appliance consist of
Answers (1)
How much total heat energy input is needed to raise the temperature from 20°C to 100°C for 15-kg steel container filled with 17-kg liquid? [cst = 450 J/kg. Co and cli = 4100 J/kg. Co]
Answers (1)
New Questions in Engineering
Just getting to your class is enough for showing up. A) True B) False
Answers (2)
A completely reversible heat pump produces heat at a rate of 100 kW to warm a house maintained at 25℃. The exterior air, which is at 0℃, serves as the source.
Answers (1)
A closed system undergoes a process in which work is done on the system and the heat transfer Q occurs only at temperature Tb. For each case, determine whether the entropy change of the system is positive, negative, zero, or indeterminate.
Answers (1)
A scientist who is evaluating an ancient human skeleton for signs of vitamin and nutrient deficiency is conducting:
Answers (1)
Which of the following is required in order to make a protected left turn A. A left green arrow B. No oncoming traffic C. A left turn only lane D. A large enough gap
Answers (1)