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?
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 100–400 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.
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When planning a project, the team should include _____.
a. the architect, project manager, and general contractor b. all supervisory and appropriate nonsupervisory personnel responsible for carrying out the plan c. the owner's project representative, project manager, and engineer d. the stakeholders, project manager, and general contractor
Which of the following statements is true?
A. The excess molar enthalpy for a system behaving according to the ideal solution model will always be equal to one, regardless of the composition of the mixture. B. Temperature, pressure and mole fraction are all intensive variables. C. According to the Gibbs phase rule, a two-component liquid mixture will have one degree of freedom. D. All of the above are true. E. None of the above are true.
Windows and doors are installed in two types of walls: those with ____ or those without, which are generally referred to as storage reservoir walls.
A. water planes B. water funnels C. drainage planes D. drainage funnels
Technician Asays many idler arms are allowed to have a slight amount of play. Technician B says checking the play requires applying a specific amount of force to the arm and measuring the movement with a dial indicator. Who is correct?
A. A only B. B only C. both A and B D. neither A nor B