A heat engine operates at a temperature of 650 K. The work output is used to...
A heat engine operates at a temperature of 650 K. The work
output is used to drive a pile driver, which is
a machine that picks things up and drops them. Heat is then
exhausted into the atmosphere, which has a
temperature of 300 K.
a. What is the ideal efficiency of this engine?
b. The engine drives a 1200 kg weight by lifting it 50 m in 2:5
sec. What is the engine’s power output?
c. If the engine is operating at 50% of ideal efficiency, how much
power is being consumed?
d. How much power is exhausted?
e. The fuel the engine uses is rated at 2:710^6 J/kg. How many kg
of fuel are used in one hour?
Homework Answers
This question is based on concept of
1. Ideal efficiency
2. Work done
3. Fuel consumption
Detailed solution is described below
THANKS
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