If you are going on a long journey by your car and are not going to stop by roadside cafes to have a snack on the road, then you certainly need to have a device with you that will keep your products fresh. The household absorption refrigerator is designed just for this case, namely - for short-term storage of rapidly deteriorating food provisions. Well, the built-in function of the possibility of obtaining food ice will provide you with cold drinks in hot weather. While the vehicle is moving, the unit is powered by the on-board network of your vehicle. In any parking lot, the heater can be connected to a 220 W network.
Positive sides
Our industrial production produces an absorption refrigerator with a volume of 30 to 200 dm 3 (l) and with a usable capacity of 75 to 200 watts. An important feature of such a refrigeration unit is the absolute quiet operation, the absence of any shut - off valves and moving parts, which significantly increases its service life. But if you compare it with compression refrigeration equipment, you can find a number of disadvantages.
What are the disadvantages of an absorption refrigerator
In order for the absorption refrigerator to work, we must cyclically turn on the heater in the network, and this is much more expensive compared to the compression unit, which is connected to the network periodically. The limit of minus temperature in such refrigeration units is much smaller, which means that the freezing process will not be so effective, and even this temperature will take longer to reach. But today, new devices are released to maintain much lower temperatures. For example, "Crystal-9", its temperature reaches -18 º.
The principle of operation of the absorption refrigerator
The absorption cooler got its name from the physicochemical absorption process taking place in it, namely, the absorption of the gaseous mixture by the absorber of refrigerant vapors formed directly in the evaporator.
In this unit, ammonia is used as the refrigerant, and the ammonia solution serves as the absorbent, i.e., the absorber. Also added to the system: sodium chromate to prevent corrosion on the surfaces of the tubes (external and internal) and hydrogen, which is necessary to balance the pressure in the system itself.
The principle of operation of this refrigeration unit is to circulate and evaporate the refrigerant. The ammonia solution through the tubes from the absorber enters the generator, from which it enters the reflux condenser with the already saturated solution, and there it decomposes into water and ammonia. In the condenser, ammonia liquefies and re-enters the evaporator, and clean water again enters the apparatus for absorbing gases.
Absorption gas refrigerators
If you are leaving for a few days to relax in nature, then you just need to stock up on such a mini-unit in advance. Absorption gas refrigerators are designed specifically to make your trip unforgettable: connect the refrigeration unit to a gas cylinder and rest calmly.
Where could I buy
You can buy an absorption refrigerator at any household appliance store. Today on the shelves there is a huge amount of modern refrigeration units. Stylish designs, environmentally friendly material, quiet operation and impeccable storage of products will help you relax at a picnic, cottage, on the go or in your office - with complete comfort.