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Questions tagged [refrigeration]

63 questions
21
votes
6 answers

What's wrong with transporting a refrigerator on its side?

I tried to deliver a refrigerator and the customer saw that the refrigerator was lying down in the truck instead of standing up. He refused to accept it, claiming that the compressor would be damaged by having it on its side. I tried to explain…
0tyranny0poverty
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2
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2 answers

Copper pipe for brine water block ice system

I am looking to replace copper pipes from a brine water block ice system . The pipes needed are 5/8 but wonder what wall thickness it should be. They should be thick enought to withstand 60 psi pressure.
user2019838
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2 answers

How to increase temperature of the condenser part in a refrigeration cycle?

I have made a refrigeration system at my home. I am using r134a as the refrigerant. I want to achieve a temperature of about 70-degree Celcius in the condenser part and 0-degree Celcius in the evaporator part. (Currently, I think I am able to…
Tank
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0 answers

The Volumetric Flowrate Under Suction Condition

For a National Board Exam Review: An air conditioning plant with a capacity of $400$ $kW$ of refrigeration has an evaporating and condensing temperature of $3$ $^oC$ and $37$ $^oC$ respectively. If it uses Refrigerant 12, what volumetric rate…
james
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1
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2 answers

How to prevent ice build up in a refrigerator?

There is ice build in my Samsung RF266 refrigerator. I have posted the following questions in Home Improvement Stack Exchange hoping to find a solution. The questions are as follows: Samsung RF266 refrigerator not cooling - Fan making noise Ice…
DiaperHands
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0
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Home freeze drying

I want to make a freeze dryer to preserve fruits/foods. I can get a vacuum chamber here: https://www.aliexpress.com/item/1005002865276963.html and i can put that into a chest freezer. I had a look at the sublimation graph for water, and it looks…
pgee70
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2 answers

At what refrigerant pressure does an air conditioner blow coldest?

R-134a refrigerant has recommended pressure levels to keep a system properly charged: My question is if you're trying to make an ac system as cold as possible, and you're willing to ignore potential side effects, should you slightly over charge, or…
YAHsaves
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Dimension of an evaporator coil

I need to cool 3 galons of water from 77 to 32°F to form an ice bank that I will use to cool beer (it is a noble effort, you see). I figured I need to install a cooling capacity of 0.34 kw to lower the temperature and form the ice in four hours. I…
sergio lopez
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1 answer

How to compute the performance of a refrigerant?

As I understand it, there are 5 key factors that determine the performance potential of a refrigerant gas: Vapor density Enthalpy of vaporization Thermal Conductivity Critical temperature Specific heat What are the relevant equations or…
Wallace Park
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