Gas fridge how does it work

A stable, level surface is required to operate an absorption fridge in the most effective way. So a moving car, caravan, motorhome or boat is not an ideal situation. A compressor fridge uses electricity to run a low-power compressor, which in turn pumps the refrigerant through the cooling system. In general terms, a compressor fridge will also perform better in extremely hot and humid conditions.

This combination makes compressor fridges the first choice for mobile use or off-grid situations where 12 V power is readily available. A stable DC power supply is generally provided by a car battery or bank of batteries.

Your batteries will need to by topped up regularly. Gas fridges are great when used predominantly on LPG, on a stable and level surface for fixed, offgrid living. More technical information and product knowledge is available in our detailed fridge buying guides.

Back Shop all fridges Browse every Bushman fridge right here. From here this hydrogen gas absorbs the rich ammonia. As the ammonia meets this hydrogen gas here in the evaporator it then creates a chemical reaction. This chemical reaction then evaporates the ammonia, thus making it extremely cold at that point. This is what is called absorbing the heat, or better stated, removing the heat from the refrigerator box.

See the image to the right to locate the propane refrigerator parts. In the meantime, you will find that the water is then being pushed backwards to the absorber coils. At this point this is where the water drops downward to the absorber tank.

From there it then drops it into the outer tube of the evaporator. It then flows downward in a mist form causing it to become extremely cold. As it falls down, the rich ammonia returns to the absorber tank, also called the mixing tank. In the absorber tank the rich ammonia mixes with the weak water which allows it to continue with its cycle all over again. Constantly looping through the above processes to generate the cooling effect.

Unlike an electric refrigerator, which uses a coolant to keep the interior cold, a propane fridge relies on simple chemical reactions. The process starts with a flame fed by a propane tank, which is why this appliance is called a propane fridge. A propane fridge has a sealed network of tubes and chambers holding water, ammonia and hydrogen gas. A propane flame heats a chamber holding a solution of water and ammonia until the liquid boils.

The ammonia gas rises to another chamber, the condenser, where it cools back into a liquid. It then flows to the evaporator, where it mixes with hydrogen gas.