This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Why are systems with fixed restriction metering devices critical to charge? What will be an ideal ... (Read 226 times)

B

  • Hero Member
  • *****
  • Posts: 570
on: Jul 26, 2018
Why are systems with fixed restriction metering devices critical to charge?
 
  What will be an ideal response?

Question 2

What is the purpose of an oil return system for a chiller?
 
  What will be an ideal response?

Question 3

Why must refrigerants that fractionate, such as R-410a, be charged as a liquid?
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

jamesnevil303

  • Sr. Member
  • ****
  • Posts: 337
Reply #1 on: Jul 26, 2018
Answer to Question 1

They cannot adjust to changing conditions and they have no liquid receiver to store extra refrigerant.

Answer to Question 2

The oil in many large commercial centrifugal and screw type chillers travels through the system and collects in the bottom of the cooler. Without some type of oil return system, the oil will not be able to be reintroduced into the lubrication circuit.

Answer to Question 3

Refrigerants that fractionate, such as R-410A, must be charged as liquid to prevent the separation of the refrigerant.


B

  • Member
  • Posts: 570
Reply 2 on: Jul 26, 2018
Wow, this really help

steff9894

  • Member
  • Posts: 337
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.

Did you know?

There are more sensory neurons in the tongue than in any other part of the body.

Did you know?

Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.

Did you know?

In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.

Did you know?

On average, the stomach produces 2 L of hydrochloric acid per day.

Charge development is unfavorable and can be circumvented by donation of a proton Charge development is unfavorable and can be circumvented by donation of a proton
Critical Thinking Model Critical Thinking Model
Numeric Color-Coding Systems Numeric Color-Coding Systems
Types of Respiratory Protection Devices Types of Respiratory Protection Devices
In the drawing of acetaldehyde, CH3CHO, the largest partial negative charge (-) occurs on In the drawing of acetaldehyde, CH3CHO, the largest partial negative charge (-) occurs on
Three point charges lie on the x x axis. Charge 1 (+9.9 μC μ C ) is at the origin, ... Three point charges lie on the x x axis. Charge 1 (+9.9 μC μ C ) is at the origin, ...
Video: The 4 steps of translation Animation

For a complete list of videos, visit our video library