What is the specific heat of Freon 12?
Freon 12 is the Dupont trade name for flurocarbon refrigerant gas, CCl2F2. The saturated liquid at 20 C has a specific heat of 0.96 kJ/ kg. K and at -20 C the specific heat is 0.90 kJ/ kg.
What is the boiling temperature of Freon 12?
-21.64°F (-29.8°C)Dichlorodifluoromethane / Boiling point
What are the chemical properties of Freon?
Freons contains hydrogen, chlorine or bromine. They are odourless, non – flammable, non – corrosive gases or liquids of low toxicity. They have low boiling points, low surface tension and low viscosity.
What is the viscosity of Freon?
| Temperature – T – (oC) | Density – ρ – (kg/m3) | Kinematic Viscosity – ν – (10-6 m2/s) |
|---|---|---|
| -40 | 1519 | 0.279 |
| -30 | 1490 | 0.253 |
| -20 | 1461 | 0.235 |
| -10 | 1429 | 0.221 |
What is desirable property of refrigerant?
Low boiling point High latent heat value. Low freezing point. Non-flammable and non-toxic. High di-electric strength. Not affected by moisture.
Which compressor is used in R12?
Reciprocating Refrigeration R12
| Part # | HP | Refrigerant |
|---|---|---|
| 2496 COMPRESSOR CAJ 4511 1 HP | 1 | R12 |
| 2512 COMPRESSOR CAH 4525 2 HP | 2 | R12 |
| 2516 COMPRESSOR TAH 4525 2 HP | 2 | R22 |
| 7040 COMPRESSOR OIL COOL AE1360AS 1/5 HP | 1/5 | R12 |
What are thermodynamic tables?
3.10 Thermodynamic Tables. Thermodynamic tables are generated from complex equations of state, which in turn were developed from accurate experimental data.
What is Freon-12 used for?
Dichlorodifluoromethane is a colorless gas usually sold under the brand name Freon-12, used as a refrigerant and aerosol spray propellant.
Which is the correct formula of Freon-12?
CCl2F2Dichlorodifluoromethane / Formula
What is refrigerant and its properties?
The refrigerant is a heat carrying medium which during their cycles (i.e. compression, condensation, expansion, evaporation) in the refrigeration system absorb heat from a low temperature system and discard the heat so absorbed to a higher temperature system. Properties of a good refrigerants: Low boiling Point.
How many thermodynamic properties are there?
Thermodynamics is classified into four categories: Classical Thermodynamics. Statistical Thermodynamics. Chemical Thermodynamics. Equilibrium Thermodynamics.
What are the 4 properties of refrigerant?
Physical Properties of Refrigerants
- Low Freezing Point. Refrigerants should have low freezing point than the normal operating conditions.
- Low Condensing Pressure.
- High Evaporator Pressure.
- High Critical Pressure.
- High Vapor Density.
- High Dielectric strength.
- High Latent Heat of Vaporization.
- High Heat Transfer Coefficient.
What are the four properties of refrigerant?
Properties of a good refrigerants:
- Low boiling Point.
- High Critical Temperature.
- High latent heat of vaporisation.
- Low specific heat of liquid.
- Low specific volume of vapour.
- Non-corrosive to metal.
- Non-flammable.
- Non-explosive.
Is R12 a high pressure refrigerant?
– r12 refrigerant properties R12 condenses at a moderate pressure under normal atmospheric temperature, has a boiling point of -29°C.