Table of Contents
- 1 What is refrigeration and air conditioning course?
- 2 Why air conditioning is a different field from refrigeration?
- 3 Which gas is used in refrigeration and air conditioning has?
- 4 What is the difference between refrigerated air and air conditioning?
- 5 What is the safest refrigerant?
- 6 Which gas is best in AC?
- 7 What is the use of impulse function in Jet Propulsion?
What is refrigeration and air conditioning course?
Refrigeration and Air-Conditioning Servicing NC III (Packaged-type air-conditioning unit / Commercial refrigeration equipment) is a short TESDA course in the Philippines that will train you in installing, servicing, maintaining, troubleshooting, and repairing air-conditioning and refrigeration units in commercial …
Why air conditioning is a different field from refrigeration?
In refrigeration, there is a transfer of thermal energy from a place at a cold temperature to a place at a higher temperature. In AC, thermal energy is taken away to keep the air at a cool temperature. From the evaporator, the condenser and compressor have a separate unit in air conditioning.
Which gas is used in refrigeration and air conditioning has?
Freon
Complete answer: Freon is a non-flammable aliphatic gasoline which is used in refrigerators and air conditioners as the supply of Chlorine. Freon is a lower toxic gasoline which is also used as aerosol propellant. In the case of air, the conditioner Freon is located inside the copper coil of the air conditioner.
What type of engineers work on fridges?
A refrigeration engineer is a specialist working with refrigeration systems. Many refrigeration engineers install, maintain, and repair refrigerators and HVAC systems in homes and apartment buildings.
How long is Tesda courses?
840 hours
Nominal Duration: 840 hours.
What is the difference between refrigerated air and air conditioning?
Air conditioners have circulation systems designed to project cool air away from the units while refrigeration units have circulation systems designed to retain coolant in a confined space. Refrigeration systems circulate cool liquids and gases through a series of tubes and vents.
What is the safest refrigerant?
Refrigerants are given indexes on what their potential effect on global warming and ozone depletion are, and ammonia is the only one that appears not to cause either of these. Ammonia is toxic and flammable, but when used in systems designed with modern technology, it is a safe refrigerant to use.
Which gas is best in AC?
Although they also have the potential for global warming, but still they are better than HCFCs as they do not deplete the ozone layer. The most common HFC used in air conditioners is R-410A….
| Refrigerant | Global Warming Potential | Ozone Depletion Potential |
|---|---|---|
| R-22 | 1810 | Medium |
| R-410A | 2088 | Zero |
| R-32 | 675 | Zero |
| R-134A | 1430 | Zero |
What is the maximum flow rate of Freon in a freon turbine?
A Freon-turbine has to use a maximum flow rate of 5Kg/s of Freon employing a ring of convergent nozzles of total exit area of cross-section of 100cm2. The pressure in the nozzle entry space is 20X105N/m2.
How do you find the adiabatic energy of a perfect gas?
The adiabatic energy equation for a perfect gas is derived in terms of fluid velocity © and sound velocity (a). This is then plotted graphically on the c- a co-ordinates, a steady flow ellipse is obtained. 12. Define M* and give the relation between M and M*.
What is the use of impulse function in Jet Propulsion?
Since the unit of both the quantities are same as unit of force, it is very convenient for solving jet propulsion problems. The thrust exerted by the flowing fluid between two sections can be obtained by using change in impulse function.