Cold in bag

Portable refrigerators: types of devices, their design and principles of operation, manufacturers, models and prices

Spring soon, and therefore comes the country season and the time of picnics. But the road is not always in comfortable conditions, especially for products. Avteda so I want to bring the edible supplies to the destination destination safely and preservation ... Yes, and thoroughly thirst for cool water in nature is not bad. Therefore, take a portable refrigerator with you.

Waecoa some readers will have a reasonable question: "How can I take even a small refrigerator with you on a picnic, because it needs to be connected to the power grid?" But the portable models are by no means reduced copies of stationary devices and have not so much common with them. The principle of action of ordinary refrigerators is about the same, and portable differ from each other and are divided into three types: bags, containers and automotive.

A table bag on the belt ...

Bags refrigerators and containers are similar on the principle of action. Do not wait for them to cool or freeze products, like their big "counterparts". These devices are designed only to preserve the temperature of edible supplies. In fact, they are simply large thermoses in which, by the way, it is possible to maintain not only cold, but also heat. The temperature does not change on average for 10 hours.

Bag-refrigerator- an indispensable thing for those who move without a car. It is perfect for a picnic and trips to the country. These bags are lightweight, and if necessary, they can be folded so that they occupy less space. Between the double walls from the nylon is a thermal insulation layer of polyurethane foam or polyethylene agent, which does not give warmth or cold to quickly disappear.

The container is a plastic box of two tanks inserted one in another. The isothermal material (foam) is placed between them. In Concenter, the cold holds longer than in the refrigerator bag, - about 15h, because its walls are thicker (up to 4 cm).

Photo 1. Iglooo.

Photo 2. Thermos.

Photo 3. Thermos.

1. PLAYMATE ELITE and IGLOO container of Playmate ELITE (IGLOO) will save the product temperature up to 24 hours.

2. Wine COLLER (THERMOS) Conveniently transported drinks.

3. Thermos refrigerator is ideal for picnic. It will fit all the most necessary for mini-holiday.

Frost on the wire

Autochole devices are not so mobile as bags and containers, because they depend on the power supply. For their work, voltage is 12 or 24V. These devices can be embedded in various niches in the car, and nourish through the cigarette lighter.

The principle of operation of the most popular varieties of automotive refrigerator-thermoelectrics is based on the Peltier effect: when the current flows through the spin of some metals, the temperature in the junction is decreased. In fact, these devices, like containers, only retain products with cold (though, longer, since they are fueled by energy). Usually they can function in two cooling and heating modes.

Mini Cold Batteries

Briquettes filled with a special salt solution will help extend the life of products in the bag. Before that, they need to be frozen in the freezer home refrigerator. They retain cold to 15h. Single batteries can also be supported heat, heating them in hot water.

It is less common that there are absorption and compression models capable of frosting truly. The first works on a water-ammonium solution circulating by absorption of ammonia with water (absorption), as well as increasing the temperature of the solution using an electric (connected to the outlet or cigarette lighter) or gas. So, a cylinder with a butane or 500 propane volume is enough for 8 days of work.

Compression functions as large refrigerators, due to the circulation of the refrigerant, which the compressor provides. They are economical and quickly cooled products. True, these devices are sensitive to vibrations and other loads (for example, shocks).

Photo 4. Mystery.

Photo 5. Ezetil.

Photo 6. Coolfort.

4. Model for the car MTH-19B (Mystery).

5. Automotive Refrigerator E 21 S (Ezetil) - 21l.

6. Model CF-0108B (CoolFort) accommodates only 8l.

The whole thing in price

The portable refrigerators "parents" are different than their stationary "counterparts". Portable produced by Coolfort (Canada), Ezetil (Germany), Supra (Japan), Mystery (China), Igloo (USA), Thermos (United Kingdom) IDR. Avot prices are comparable. Thus, thermoelectric auto-workers can be purchased in about 10 thousand rubles, and for absorption and compression will have to give an average of 30-40 thousand rubles. The cheapest will cost the bags and containers, about 2-3 thousand rubles.

Photo 7. Waeco.

Photo 8. Supra

Photo 9. Supra

7.Qame model TE-21-ISO (WAECO) can be set a temperature that differs from the ambient temperature to - + 30s.

8-9. MFC-24 (8) MFC-24 car container and MBC-18 bag (9) (SUPRA) will retain the products on the trip.

The editors thanks "Goldel Electronics" (Coolfort), Supra Electronics, Mystery Electronics, Thermos, Ezetil, Igloo for help in preparing the material.