How Does Engine Efficiency Affect Cooling System Temperature?

AI Thread Summary
Engine efficiency directly impacts the cooling system temperature by determining the amount of thermal energy produced during operation. In this scenario, a small engine pumps 100 liters of water from a depth of 300 meters, requiring calculations to find the work done based on the engine's 54% efficiency. The specific heats of water and methanol are provided, which are crucial for calculating the temperature change in the cooling system. The density of water is noted as 1 kg/L, facilitating the conversion of volume to mass for further calculations. Understanding these relationships is essential for solving the thermal energy problem effectively.
efren17
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Homework Statement


HELP with physics homework, thermal energy?

I cannot figure out how to solve this problem, can someone show me how?

A small engine pumps 100 liters of water from a well 300m deep. What would the change in temperature be for the engine 20 liter cooling system (filled with methanol) if the engines efficiency is 54%

Specific heat of water 4180, and of methanol 2450

density of water 1kg= L


Homework Equations





The Attempt at a Solution

 
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efren17 said:

Homework Statement


HELP with physics homework, thermal energy?

I cannot figure out how to solve this problem, can someone show me how?

A small engine pumps 100 liters of water from a well 300m deep. What would the change in temperature be for the engine 20 liter cooling system (filled with methanol) if the engines efficiency is 54%

Specific heat of water 4180, and of methanol 2450

density of water 1kg= L


Homework Equations





The Attempt at a Solution

Show us what you have done so far. For starters, how much work does the engine have to do? (hint: that is the output).

AM
 
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