Vehicle equipment

The project of the future special purpose car

Before the production of the van and providing it with furniture and equipment, the design bureau of the PROMAVTO Plant creates a 3D project of the future special purpose vehicle.

An example of a project illustrating the capabilities of a plant.

We equip vans with furniture of our own production of two different types:

• Industrial steel.
  It includes workbenches, lockers, racks, cabinets for tools and equipment, etc.

• Household made of chipboard and plywood on a steel frame or without it.
  Such furniture is made according to the technical specifications of the Customer in accordance with the aesthetic wishes of the latter.

Laboratories are usually equipped with specific certified furniture, the production of which we entrust to specialized industry enterprises.

Steel furniture

It is possible to make any furniture according to the individual size of the customer.

Household furniture

It includes cabinets, bed boxes, and wall-mounted drawers made of steel frame with a powder-coated polymer gray color and plywood or chipboard lining. The size, design and functionality of such furniture is selected individually in accordance with the aesthetic and practical wishes of the customer and can be additionally equipped with necessary household appliances and equipment.

Coefficient of thermal conductivity

Being engaged in the production of high-quality vans, we strive to pay special attention to creating the most comfortable conditions for passengers transported on a shift bus, a mobile workshop or any other car. Positioning ourselves as a reliable and responsible manufacturer, we are guided by the current rules and standards for the carriage of passengers, in particular the requirements of GOST R 50993-96 “Motor vehicles. Heating, ventilation and air conditioning systems. Requirements for efficiency and safety ”in relation to the microclimate of our vans. According to this document, in the inhabited premises of automatic telephone exchanges (automobile vehicles) used in temperate climates, the air temperature in the zone of the passenger waist should not fall below +15 ° C after 2 hours ans 15 minutes after the start of movement at an ambient temperature of -25 ° C.

Of course, you can achieve such indicators by installing a powerful heater that will constantly work and maintain the air temperature in the cabin in the right range. However, this is very uneconomical. We, however, initially produce vans of high isothermality, which allows us to heat the air in the cabin once to the desired temperature and further, it will persist for a sufficiently long time.

We do not just assure that in the production of mobile workshops, laboratories, shift buses and other vans PROMAVTO, our factory uses only high-quality insulation (extruded StyrofoamDow expanded polystyrene or polyurethane foam), we are ready to confirm the excellent thermal insulation characteristics of our add-ons with the obtained heat transfer coefficient of the vans (physica meaning of the heat transfer coefficient is the total power of the heat flux in W passing through the area of ​​the panel of the van 1 m² at a temperature difference stages inside and outside the van 1 ° C).

As you know, it is possible to determine the real heat transfer coefficient of the van only in a special laboratory. Until recently, such laboratories existed only in the European Union, but in 2008 the first and so far the only industrial laboratory for thermotechnical testing of isothermal vans in Russia (at the beginning of 2013) was built on the territory of the PROMAVTO Group.

Laboratory tests to determine the actual heat transfer coefficient are as follows: a van is brought into the thermostabilized chamber along the rails. The accuracy of maintaining the temperature in the chamber ± 0.5 ° C is provided by climate control. The heater and fans are placed in the measured van for uniform distribution of air temperature inside it. The thermal power of the heater together with the fans is controlled with an accuracy of ± 1% by a power meter. Temperature is measured continuously by 24 sensors inside and outside the van for 24 hours. Data from the sensors is sent to a multi-channel meter and displayed in real time on the monitor. To see all the values ​​at the same time is important for assessing the degree of unevenness of air temperature in the volume of the van and beyond in the volume of the chamber. The heater raises the temperature in the van, and when it reaches the limit value, the computer determines the difference in air temperature inside and outside the van. Knowing the power of the heater W, the temperature difference Δt inside and outside the van and the average surface area S make it possible to calculate the heat transfer coefficient by the formula: K = W / S • Δt.

It is important to emphasize that having valuable information about the real value of the heat transfer coefficient of the van, we get the opportunity to correctly determine the power of the autonomous heater, which must be installed to maintain the optimal microclimate in it, corresponding to GOST R 50993-96. So, we can easily calculate the heat transfer from the van, knowing the value of the heat transfer coefficient (K), the surface area of ​​the van (S) and the estimated temperature difference (Δt) inside and outside the van during its intended use by the formula: W = K / Δt * S. The obtained value will allow you to estimate the minimum power of an autonomous heater necessary to maintain a comfortable temperature inside the superstructure.

Having rich experience in the manufacture of isothermal vans, we also use it in the manufacture of special equipment, keeping heat in the cabin for the maximum period and optimally using the power of an autonomous heater.