We make it cold. Drawing, description

CHILDREN'S SCIENTIFIC LABORATORY
Free library / Directory / Children's Science Lab

We make it cold. Children's Science Lab

Children's Science Lab

Summer, along with joy, sometimes brings sorrow. Dust, heat, and if there is no wind, then it’s really bad. So what, lie down in the shade under a tree and wait until the evening comes? Of course not. An active person will find a way to get rid of the heat. One of these methods - the construction of a home-made air conditioner (air cooler) is recommended by Moscow engineer V. Korolev.

Air conditioning

Air conditioners are mainly of two types: compressor and evaporative. It is difficult to make a compressor one on your own: it is very complicated and expensive. Evaporative is much simpler, and anyone can do it - there would only be a desire, or rather, an unwillingness to endure the heat in your home or in the cab of a car. The principle of its work is based on the known law of physics. Evaporation requires heat; evaporating water picks it up from the surrounding air. Two designs that you can make with your own hands are shown in the figures.

The first installation (Fig. 1) is quite simple. To assemble it, you need to have an old automotive-type inertia-oil air cleaner and a centrifugal fan with a 200 W electric motor. (Flange connection can be replaced by flexible hose with clamps or cap screws.)

Making it cold
Rice. 1. Simple evaporative installation: 1 - housing; 2 - wire mesh; 3 - air duct; 4 - openings for the exit of cooled air; 5 - flange connection; 6 - fan with motor

If you only have a fan, make your own evaporator housing. It is not necessary to repeat the complex forms of an air cleaner made in the factory, they should be simplified as much as possible.

The filter element is made of a fine mesh, rolled up in several layers into a cylinder of a given diameter (250-300 mm). At the bottom, the mesh is soldered to the bottom of the case. Once the fan motor and switch are connected to the circuit and the air cleaner housing (now the evaporation chamber) is filled with water, the unit is ready to operate.

The fan sucks in the air that needs to be cooled and delivers it to the evaporation chamber. The air passes through the water column in large bubbles and exits through the filter meshes into the outlets. In bubbles, as well as when passing through grids with capillary properties, intensive evaporation of water occurs. In this case, the air loses some of its heat and cools.

Evaporative plant

The second design (Fig. 2) also consists of a centrifugal electric fan and a mixing chamber, the role of which here is played by a rectangular air duct, curved at the end. The air duct lies on a tank filled with water and is attached to it. A water atomizer is installed inside the evaporation chamber - a conventional atomizer equipped with a nozzle. The flow area of the nozzle is regulated by an air damper.

Making it cold
Rice. 2. Evaporative installation with a spray gun: 1 - tank with water; 2 - filler neck; 3 - holes for air: 4 - spray gun; 5 - atomizer damper; 6 - flange connection; 7 - fan with motor

In this installation, water particles emitted by the spray gun evaporate. The amount of water supplied to the atomizer is regulated by turning the damper: the more it is open, the more water is sucked out of the tank.

To operate the atomizer spray, you can use the MK-1 microcompressor, connecting it with a drive to the electric fan shaft. The microcompressor drive can also be carried out from a separate small-sized electric motor.

The body, tank, evaporation chamber, knees can be made from any waterproof material: sheet iron, plexiglass. Grids for filters - small, from a galvanized steel or copper wire. Gaskets: hard cardboard or paronite.

In the car, the unit is located under the storage box, on the floor in front of it or behind the rear seat. In the latter case, additional air ducts must be installed to cool those sitting in front.

If there is an electric fan in the ventilation system of the car, then there is no need for it at the installation itself.

The air conditioner can also be placed in the room, attaching a base to it for stability.

We recommend interesting articles Section Children's Science Lab:

▪ rocket launcher

▪ Why compass readings can be unreliable

▪

See other articles Section Children's Science Lab.

Read and write useful comments on this article.

<< Back

Latest news of science and technology, new electronics:

Artificial leather for touch emulation 15.04.2024

In a modern technology world where distance is becoming increasingly commonplace, maintaining connection and a sense of closeness is important. Recent developments in artificial skin by German scientists from Saarland University represent a new era in virtual interactions. German researchers from Saarland University have developed ultra-thin films that can transmit the sensation of touch over a distance. This cutting-edge technology provides new opportunities for virtual communication, especially for those who find themselves far from their loved ones. The ultra-thin films developed by the researchers, just 50 micrometers thick, can be integrated into textiles and worn like a second skin. These films act as sensors that recognize tactile signals from mom or dad, and as actuators that transmit these movements to the baby. Parents' touch to the fabric activates sensors that react to pressure and deform the ultra-thin film. This ... >>

Petgugu Global cat litter 15.04.2024

Taking care of pets can often be a challenge, especially when it comes to keeping your home clean. A new interesting solution from the Petgugu Global startup has been presented, which will make life easier for cat owners and help them keep their home perfectly clean and tidy. Startup Petgugu Global has unveiled a unique cat toilet that can automatically flush feces, keeping your home clean and fresh. This innovative device is equipped with various smart sensors that monitor your pet's toilet activity and activate to automatically clean after use. The device connects to the sewer system and ensures efficient waste removal without the need for intervention from the owner. Additionally, the toilet has a large flushable storage capacity, making it ideal for multi-cat households. The Petgugu cat litter bowl is designed for use with water-soluble litters and offers a range of additional ... >>

The attractiveness of caring men 14.04.2024

The stereotype that women prefer "bad boys" has long been widespread. However, recent research conducted by British scientists from Monash University offers a new perspective on this issue. They looked at how women responded to men's emotional responsibility and willingness to help others. The study's findings could change our understanding of what makes men attractive to women. A study conducted by scientists from Monash University leads to new findings about men's attractiveness to women. In the experiment, women were shown photographs of men with brief stories about their behavior in various situations, including their reaction to an encounter with a homeless person. Some of the men ignored the homeless man, while others helped him, such as buying him food. A study found that men who showed empathy and kindness were more attractive to women compared to men who showed empathy and kindness. ... >>

Random news from the Archive

External SSDs up to 2TB Samsung T5 16.08.2017

Samsung has launched the T5 series of portable solid state drives, designed for demanding users and professionals involved in processing large amounts of data.

Information storage devices are made using 64-layer 3D V-NAND flash memory microchips. The USB 3.1 Gen 2 interface is used to connect to a computer; the declared data transfer rate reaches 540 MB/s.

The Samsung T5 family includes 250GB and 500GB blue drives, as well as black 1TB and 2TB models.

Device dimensions are 74 x 57,3 x 10,5 mm, weight - 51 grams. Products are able to withstand drops from a height of up to 1,8 meters. It also talks about the support for encryption of information using the AES algorithm with a key length of 256 bits.

The scope of delivery includes USB-C - USB-C and USB-C - USB-A connection cables.

As for prices, the younger version of the drive, designed to store 250 GB of information, will cost $ 130, and for the 500 GB version you will have to pay $ 200. Devices with a capacity of 1 and 2 TB are priced at $400 and $800, respectively.

Other interesting news:

▪ Cutlets from the air

▪ sound bait

▪ Touch screen - with gloves

▪ Female neurons are thinner than male ones.

▪ Solar panels from lunar soil

News feed of science and technology, new electronics

Interesting materials of the Free Technical Library:

▪ site section Field strength detectors. Article selection

▪ article Darling. Popular expression

▪ article What are stars made of? Detailed answer

▪ Network Administrator article. Job description

▪ article Radio microphone. Encyclopedia of radio electronics and electrical engineering

▪ article Guessing the day, month and year of birth. Focus Secret

Leave your comment on this article:

All languages of this page

Home page | Library | Articles | Website map | Site Reviews