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Author Question: What are the four separate loads used to calculate the heat load for a walk-in coolers or freezers? ... (Read 48 times)

roselinechinyere27m

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on: Jul 26, 2018
What are the four separate loads used to calculate the heat load for a walk-in coolers or freezers?
 
  What will be an ideal response?

Question 2

Do transformers operate more or less efficiently when fully loaded? Explain your answer.
 
  What will be an ideal response?


GCabra

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Reply #1 on: Jul 26, 2018
Answer to Question 1

Heat transmission, air infiltration, product load, and supplemental loads.

Answer to Question 2

Efficiencies for transformers are higher when they operate more fully loaded. The primary winding current is mostly inductive making it nearly as much as 90 out of phase with the voltage. The mostly resistive secondary winding current will offset this at higher transformer loads so that the total current is more in phase with the voltage and therefore more efficient.


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