Biology Forums - Study Force

Other Fields Homework Help Trades and Apprenticeship Topic started by: Luasene on Mar 17, 2018



Title: Explain the difference between the open loop geothermal heat pump that uses two wells, the closed ...
Post by: Luasene on Mar 17, 2018
Explain the difference between the open loop geothermal heat pump that uses two wells, the closed loop vertical type geothermal heat pump and the closed loop horizontal type geothermal heat pump.
 
  What will be an ideal response?

 Q. 2

Compare the temperature of a low-temperature resource to a high-temperature resource
 
  What will be an ideal response?


Title: Explain the difference between the open loop geothermal heat pump that uses two wells, the closed ...
Post by: berrytarts on Mar 17, 2018
Ans. to #1

The closed-loop horizontal geothermal heat pump system recirculates fluid (typically glucol) in long sections of plastic tubing, which is buried in horizontal trenches at approximately four to six feet deep The trenches must be placed far enough from each other to maximize the amount of heat transfer.

The closed-loop horizontal geothermal heat pump system recirculates glycol in vertical tubes that are approximately four inches in diameter and are drilled about 20 feet apart and 100400 feet deep. This saves land area for the installation. Two pipes are connected at the bottom so that fluid can go down one pipe and return through the other. The top of one of the pipes is connected to a feed water manifold, and the second pipe is connected to a return manifold.

Ans. to #2

Low-temperature resources have a temperature less than 90o C (194o F). The lower temperature resources are used for heating buildings, fish farming, bathing and even snow melting (in places like Iceland with a very large geothermal resource.)

High-temperature resources have a temperature greater than 150o C (302o F). These resources are generally used for electrical generation and can drive steam turbines directly.

In between low-temperature resources and high-temperature resources are moderate-temperature resources.