Gas model of the refrigerator
The refrigerator has long been one of the necessary devices in every home.. Modern people cannot imagine their life without this device. Now you do not need to build a bulky cellar near the house, and the meat and fish do not have to be salted, dried or canned. The freezer allows for a long time to preserve the freshness and all the beneficial properties of meat products, vegetables, fruits and berries.
The bulk of the refrigeration works when using electricity. It is produced by most famous brands. There is a wide range of products, varying in size, functionality and design. Modern unit designs have an energy rating of A, A +, or A ++, which is extremely economical to use.
However, not always and not everyone has the opportunity to use all the benefits of civilization, and electricity as well. In this case, a gas fridge may help.. It is impossible to forget the fact that in Russia, extremely rich in valuable resources, natural gas has a high prevalence and low cost. For this reason, almost every person can afford its use.
Electric gas refrigerator at the moment can be purchased in different variations. The useful volume of models ranges from 30 to 100 liters and more. This allows the use of such devices as portable or stationary. At the same time, manufacturers equip units with various functions - they can be the simplest or have useful and convenient functionality.
Refrigeration equipment powered by gas, gas or even solar energy is called absorption. It received its name due to the physical phenomenon used - absorption. This process consists in the evaporation of a special substance, called a refrigerant, in the evaporator chamber, as well as in its absorption by another solid or liquid substance.
In gas coolers, ammonia is used as a refrigerant, and ordinary water is needed for absorption.. When vapor is absorbed, a mixture of water and ammonia is formed, which again moves into the generator. There it is heated to boiling point. This is what natural gas serves for. The burning temperature of the solution is much lower than that of pure water; it is only 33 degrees, which allows it to be heated, using much less energy.
When boiling the liquid evaporates and in a gaseous form enters the condenser. There, the ammonia is separated from the water and transferred to the evaporator chamber, which is located inside the refrigeration compartment. Separately, it boils in the evaporator at a low temperature - and at the same time cools the evaporator, transferring this cold to the equipment chamber.
When mixing ammonia vapors and water, that is, absorption, a certain amount of heat is released, which is released into the atmosphere through ventilation located on the rear wall of the device. It should be noted that the gas cooler emits much more heat than a regular electric (about 60%). It is imperative to ensure that it does not stand too close to the wall by ventilation grilles, and that sufficient air circulation is ensured.
The absence of moving components makes the absorption technique extremely reliable in operation. This explains the somewhat higher cost (compared to electrical appliances). However, this price is more than repaid with a service life during which the device will never let down its owner.
For the consumer in functioning, such electrogas refrigeration is not much different from the usual. The cooling chamber is maintained at a temperature of 2-4 degrees Celsius. This ensures proper storage of food.
The absorption process is able to provide a difference between the external ambient temperature and the internal one up to 30 degrees. This means that even during the summer temperature rise inside you can keep the cold at maximum power work. Such efficiency allows to equip gas refrigerators with freezers. Usually such a camera is added for the equipment used in home or summer conditions.
It is necessary to install such a refrigeration unit in the same way as a gas oven or a stove. A gas hose equipped with a gearbox is connected to the fitting. It can usually be found at the bottom of the machine. When installing it is necessary to strictly ensure that the connection site is protected from moisture, pollution and sunlight. It is also necessary to isolate the device from flammable materials.
Disadvantages of absorption refrigerators
As with any technology, instruments operating on the principle of absorption have their drawbacks.
- When the refrigerator compartment works perfectly, the freezer may disappoint with its characteristics. Despite the fact that manufacturers declare a working temperature in it from -5 to -15 degrees, the average value for such devices is -6 degrees. This is due to the not too low boiling point of the refrigerant at atmospheric pressure. For this reason, the freezing function of the device may work slowly and slowly. When purchasing it must be considered.
- Ammonia is the most widely used refrigerant.. Water is used to dilute and operate the instrument. When they are combined, a water-ammonia solution is formed, which has a much higher concentration than ammonia used in everyday life and medicine. Any technique can break, and it happens with a similar one, albeit rarely enough. If the refrigerant or its aqueous solution is lost, this can have a bad effect on people using the device and nearby, and on the external environment.
The disadvantages, as you can see, are not that many, but they are. They certainly need to be considered when purchasing and operating gas refrigeration equipment. It should also be remembered about the features of its device (in case of breakdowns and necessary repairs).
The use of propane in the operation of technology makes the repair of their own hands rather dangerous enterprise. With uncertainty in their knowledge and power, it is better to entrust it to professionals. In the absence of sufficient preparation and accuracy, such repair may lead to the final failure of the device. What is much worse - it threatens the "handyman" with physical damage.
Often, the correct operation of the apparatus is hampered by problems with gas equipment. Many models are equipped with an additional electrical connection. If possible, connect the device to electricity. If at the same time it starts to function normally, access to gas from a cylinder or pipe should be immediately blocked. Then you should use the help of repair service.
The cost of repairing the device will directly depend on the severity of the breakdown. There are also situations when it is inexpedient to repair it.
In case of problems with such a device, in any case, it is advisable to contact professionals to avoid injuries and further damage, as well as due to the danger of working with natural gas.
Gas refrigeration equipment produced by different companies. It is worth considering the most popular ones:
Exmork is one of the most famous manufacturers of absorption refrigerators. Propane is used for operation and heating of the refrigerant, the connection is made in the usual way (for example, like with a gas stove).
The performance of the devices of this brand are the same as that of a conventional device, which operates from electricity. In the refrigerator compartment, the temperature is maintained at 3-5 degrees Celsius, and in the freezer - from 5 to 15 degrees of frost.
Devices are equipped with dual connection. They can be included in the grid when there is a possibility. In this case, the flow of gas must be cut off, and the power cord should be connected to an outlet that provides a standard voltage of 220 V. This is an electrical equipment that is convenient for use in any conditions: at home, in the country, in a tent camp, summer cafe.
Illumination of the chambers of the refrigerator is carried out using LEDs.
The range of the brand is quite wide and includes models with different usable volume. One of the most popular is the refrigerator "XCD-95". Its total useful volume is 90 liters, 15 of which are allocated to the freezer. Users note a low noise level when using the device. To regulate the temperature mode, you can use a mechanical thermostat. Its approximate cost is 55 thousand rubles.
Another model, very popular among consumers, is the "XC-50". This is a fairly small device - the volume of only 50 liters. It does not have a freezer compartment. Due to the ease of carrying and installation, it is perfect for use in the country, picnic, fishing, camping and other conditions. Its price is much lower than the cost of the previous sample and is approximately 20-25 thousand rubles.
All models of Exmork refrigerators are equipped with an automatic propane release function when the burner is extinguished. This makes their use as safe as possible.
Vitrifrigo - Italian brand engaged in the release of refrigerators and refrigerators for hotels, offices, travel, yachts and boats. All products of the brand have a stylish design. It should be noted that ease of use is provided by the compactness of most samples and the ability to work from any energy source. Included is the ability to connect to natural gas, a source of electricity with a voltage of 220 V or 12 V. Such units can be used almost everywhere.
The product range is represented by options from 33 to 150 liters of internal volume, which allows you to meet all the needs of customers.
Ezetil and Dometic companies are engaged in the production of mobile refrigeration devices designed to work in various conditions. This equipment is called a car because it has the ability to work from the vehicle's cigarette lighter, connecting to its power supply with a voltage of 12 V. With this method of connection, the device will work a little differently. The required temperatures will be reached much slower. However, this makes the use of the unit particularly convenient when traveling long distances, when traveling around the country in mobile homes, campgrounds, and so on.
These devices can be connected to a gas cylinder and a conventional household network with a stable voltage of 220 V. Arriving at the cottage or home, you can easily connect the device to a power source and use its full functionality.
Absorption refrigerators are an excellent option for those who cannot use conventional electrical equipment. Judging by the reviews, it can be noted that such devices are very convenient to use when traveling, in the country, in tents on the market and shops.
For the house, they are not quite suitable because of the complexity and danger of using gas cylinders.