If it is necessary to heat rooms of an impressive area, it is not always advisable to use traditional water systems, which include radiators. Such projects are characterized by high material consumption and do not allow to achieve the desired effect. With air convection in a free state, heat will rush upward, while a person will feel cool from below.
The air-heating unit is a completely different matter. It works on the principle of forced air injection in a certain direction. In order to become more familiar with such equipment, it is necessary to study the characteristics and main varieties of such devices.
Working principle
In the conditions of industrial enterprises, air heating systems have been used for a long time. After the invention of ventilation equipment, they were able to win well-deserved places inoffice buildings, shopping centers, cinemas, where the floor space is very large. The air-heating unit can be used in a private house.
Such devices directly heat the air, this principle of operation is the simplest option. The air-heating unit (AO) can be represented by an axial fan, which is located behind the heating element, blowing air sucked in from the room through it.
Additionally about the features of the work
The thermostat in the design controls the temperature, it turns off the heating if the value reaches a certain level. To heat the space, the described devices are installed at different points, it can be a space under the ceiling at a height of up to 4 m. During operation, the air-heating unit directs the air stream down, which is ensured by the position of the blinds. They are located in front of the heater. Direction of the flow of warm air can also be guaranteed by tilting the case forward.
Main varieties
The described heaters can be classified into two categories:
- heating element type;
- air consumption.
When low air flow rates are required, an axial fan is traditionally used. If we are talking about more powerful heating systems that must serve large buildings or rooms, centrifugal fans are used. In this case, to the free side heat exchanger flangean air duct is fixed, which distributes heat in one room or the whole structure.
The air-heating unit, as mentioned above, can be divided according to the type of heat exchangers, they are:
- steam;
- water;
- electric.
The field of use of electric heaters is very limited, this is due to several reasons. The first of them is expressed in the lack of electric power on the line. Indeed, to obtain one kilowatt of heat, one kilowatt of electricity is needed. Thus, for a room with an area of 500 m2, a power of 50 kW will be required. There are few networks that are designed to supply this amount of energy.
Another difficulty is expressed in the control of heating, since operation at the maximum is not always required, but high-power electrical units cannot be regulated smoothly. This requires expensive electrical equipment. This suggests that manufacturers quite often implement three- or two-stage heating. Such units are most often used in rooms with medium or small sizes.
Technical characteristics of the heater KSK 3-10
KSK 3-10 heater is used in air heating, ventilation and air conditioning systems. Its capacity is 6300 m³/h. The volume or capacity of the air heater is 7.1 liters. Thermal power is 139.6 kW. The mass of the device does not exceed 64 kg.
Squareheat transfer surface is equivalent to 29.5m2. Dimensions along the contour are 1227x575x180 mm. The KSK heater is manufactured according to state standards, and after the completion of the production stage, the devices undergo a hydraulic test for tightness and strength. The heat-releasing elements are made of a steel electric-welded pipe, the dimensions of which are 16x1.6 mm. Sometimes a seamless cold-formed seamless steel tube is used for this, the dimensions of which are 16x1.5 m. An alternative solution is rolled aluminum fins, the nominal diameter of which is 39 mm.
Area of use of the VOLCANO VR air-heating unit
The Volcano air-heating unit is an equipment that is integrated into the system in medium and large facilities. The device works on the air that is in the room. It has found its application in heating systems:
- storage space;
- workshops;
- shops;
- wholesale terminals;
- garage complexes;
- sports and entertainment facilities;
- car services.
Description VOLCANO VR
Poultry and livestock complexes are also equipped with such units. Their main advantages include the speed and efficiency of heating, low noise level during operation, the ability to adjust parameters in accordance withwith needs. Heating equipment is not capable of violating the aesthetics of the interior; it can be combined with almost any style decision. The use of such units allows you to save money, because they are economical and consume little electricity. Such air heating units, the price of which is 25,200 rubles, can be used as a thermal curtain at the entrance through the opening gate.
Volcano Brand Fan Heater Specifications
Axial fan from manufacturer Volcano can be used for forced air ventilation. The equipment is powered by an electric motor with a power of 0.485 kW. The equipment is fenced off with a metal mesh to comply with safety regulations. The heat fan has a heat exchanger through which a stream of warm air enters. It is made of a copper coil, on which a collector and a block of fins are installed. The first of them performs the function of removal and supply of cooled and hot medium.
If you need a unit with less impressive power, then you should consider a single-row heat exchanger VR1. More powerful units are marked VR2, they include a two-row heat exchanger. The heat fan has blinds, with which the user can adjust the direction and range of air supply. They are fixed at different angles.
