Table of Contents
- 1 Can you use water instead of Freon?
- 2 What effects does water have when introduced in a system with refrigerant?
- 3 What is the effect of the evaporator on the refrigerant?
- 4 Why is refrigerant used?
- 5 What is are the disadvantages of most gases used as refrigerant?
- 6 How does water evaporate from a refrigerant coil?
- 7 How does a rotary evaporator keep solvent from freezing?
Can you use water instead of Freon?
A COOLING AGENT FOR CENTURIES Water is an excellent refrigerant because it is environmentally safe, nontoxic, nonflammable, nonexplosive, available almost anywhere, and very inexpensive. In addition, water has a very high latent heat of vaporization (970 Btu per pound) at standard atmospheric pressure.
What effects does water have when introduced in a system with refrigerant?
EFFECTS OF WATER CONTAMINATION Water contamination in an industrial ammonia refrigeration system can lower system efficiency and increase the electrical costs required to run the system’s refrigeration compressors. For a given pressure, the addition of water to the ammonia will raise its temperature.
What is the effect of the evaporator on the refrigerant?
The evaporator works the opposite of the condenser, here refrigerant liquid is converted to gas, absorbing heat from the air in the compartment. When the liquid refrigerant reaches the evaporator its pressure has been reduced, dissipating its heat content and making it much cooler than the fan air flowing around it.
Which refrigerant is used in water cooler?
Answer: Water coolers usually use a condenser/evaporator type cooling system with a compressor to change the refrigerant state from gas to liquid. Older water coolers, some of which are still in use, used Freon, or R-12 refrigerant to cool the water.
Why ice is a good refrigerant?
1) Ice Refrigeration: In this method the ordinary ice is used for keeping the space at temperature below the surrounding temperature. The temperature of ice is considered to be 0 degree Celsius hence it can be used to maintain the temperatures of about 5 to 10 degree Celsius.
Why is refrigerant used?
A refrigerant is chemical compound that is used as the heat carrier, which changes from gas to liquid and then back to gas in the refrigeration cycle. Refrigerants are used primarily in refrigerators/freezers, air-conditioning, and fire suppression systems.
What is are the disadvantages of most gases used as refrigerant?
Replacing them is a difficult task considering that the only solutions currently available are the so-called “natural” refrigerants, such as ammonia, hydrocarbons and CO2. The disadvantages of these products are mainly toxicity (NH3), flammability (HC) and high pressures (CO2).
How does water evaporate from a refrigerant coil?
The refrigerant absorbs heat from the passing air and, as it does so, it warms up and evaporates. When the water vapor in your warm household air hits the cold evaporator coils, the water vapor condenses into liquid form and drips down into the condensate pan, which drains the water away outdoors.
How does an evaporator coil reduce the humidity?
When the water vapor in your warm household air hits the cold evaporator coils, the water vapor condenses into liquid form and drips down into the condensate pan, which drains the water away outdoors. This is how your evaporator coil reduces the humidity in your home. Caring for the Evaporator Coil
How does the evaporator absorb heat from the air?
Before entering the evaporator coil, the refrigerant passes through the expansion valve. This valve relieves pressure from the liquid refrigerant, which rapidly cools it. The liquid refrigerant leaving the expansion valve is quite cold, which is what allows it to absorb heat from the air.
How does a rotary evaporator keep solvent from freezing?
A typical rotary evaporator has a water bath that can be heated in either a metal container or crystallization dish. This keeps the solvent from freezing during the evaporation process.