Heat exchanger for a detached house: the choice and correct use of

special ventilation systems accommodation equipment We began to apply a mass scale parameter after improving insulation of buildings. Heat exchanger for a private house helps to ensure an adequate fresh air with the optimization of the maintenance costs of comfortable temperature. This article describes the principles of operation, the factory model, manufacturing technology and the installation of equipment on their own.

Modern heat exchanger: what it is and how to determine requirements to the parameters of the equipment

multilayer windows and quality seals door units make tight spaces. For fresh air set special systems (Devices).

In this embodiment, the problem is resolved. User sets his desired hole size. He did not have to open a window for ventilation. But in winter the cold air from outside will cool the room, increasing the cost of heating. In the summer of the same process will cause most include air conditioning.

The operating principle of the equipment is not difficult to understand from this figure. Two air stream (input and output) is passed through a heat exchanger. As they do not mix this block. But with proper adjustment of the flow rates of heating / cooling of the supply air is performed without using extra energy.

This figure explains the operation of a typical installation:

• outdoor air temperature from -10 ° C is raised to a comfortable level of + 20 ° C.
• At the entrance there is a filter, so dirt will not enter the premises.
• The flow rate and frequency of cycles can be adjusted by fan.
• If necessary, additional heating of heater will provide.
• Output filter prevents dust from entering the heat exchanger and clog passages.

Important! An additional advantage of using a heat exchanger to a private home is the lack of cold drafts. This will simplify the task of creating healthy environments.

For the calculation of technical parameters necessary to consider the requirements of the existing sanitary norms. In accordance with the rules, if the room is constantly in people, then each person should be at least 60 m. Cu. fresh air per hour. If the room performs ancillary functions are allowed to reduce the rate of three times. This formula will help to know the necessary values.

PR = CPV × 0,355 × (Tc-Tn)where

• ETC - plant capacity, measured in cubic meters.. one second.
• CPV - sanitary standards discussed above. It is multiplied by the number of people.
• 0,355 - a standard correction coefficient.
• Th - the temperature, which should be available in the room.
• TH - the outside temperature.

The calculation is performed according to the formula: Efficiency = (TNV - Tu) / (TBn - Tu).

Heat exchanger for a detached house: the choice of technique and the proper application of

Not difficult to guess that the performance and efficiency depend on the current state of the temperature conditions. This means that when choosing the right equipment necessary to take into account the limit values ​​for certain climatic conditions.

It should also be noted that cooling air is released from moisture. Its removal with minimal fuss - one of the most important practical problems. Forced displacement of the air by means of fans, therefore it is necessary to rely on additional energy consumption. With a high power need to make changes in the standard wiring. In some situations, it is important dimensions, mounting features. More precisely defined criteria will be formulated after a detailed study of different air recovery systems.

Design and technical differences between different models of equipment

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Hoods for the kitchen with a tap of the ventilation.For the well-being of the premises should be removed noxious odors There is a huge range of such equipment and to pick up a decent option, you need to learn the characteristics of the individual models and their features settings that we consider in article.

In this construction, air flow is passed along different paths. They are separated by thin metal plates, which prevents mixing increases the efficiency of heat exchange. For obvious advantages are ease of engineering solutions. Such products can be created at low cost. They have no moving parts, so to ensure good conditions for a long service life. Efficiency of contemporary models reaches 60-65%.

In order to prevent corrosion processes and improve the heat transfer coefficient applied products of aluminum alloys.

In this embodiment, a partial mixing of streams, but provides high efficiency (best samples - up to 86%). It should be noted that such equipment is larger in size than the plate-shaped. Rotating rotor - this additional energy costs and reduced reliability.

Such equipment sets are rarely used for housing equipment. They are expensive, and provide efficiency not higher than cheaper counterparts. The only advantage is the possibility of separation of individual units over long distances. But this feature is useful only in large commercial buildings. For private homes exchanger suit with a plate or rotary heat exchanger. It is such a model will be discussed below.

Not to be confused with recuperators similar devices. Breathers are designed to heat the air. They do not use heat, so the operation is costly electricity.

When choosing a heat exchanger for an apartment it is necessary to pay attention to such articles. They are well suited to equip private homes. They are set locally, in the walls of certain rooms. They perform their functions autonomously without being connected to a centralized control and configure the system.

Here, the fans are running according to the program that provides a simultaneous movement of the two air flows. Using the remote control change performance, establish an algorithm for quiet operation of the equipment at night.

To avoid frosting occurred, part of the warm air is guided along specific channels. However, such protection is effective only to a level not less than -15 ° C. For quick removal of frost and ice on the surface of the heat exchanger is activated drawing mode. It can also be used for the active removal of fumes and other impurities from the air in the room.

The size of built-in filters of cells does not create undue obstacles to flow, but it is enough to arrest flies and mosquitoes, down plants. For routine maintenance then the removable cover on the inside.

Market Review proposals

Brand / Model / Photos	Specifications	Note
	electric power of 18 W; the maximum capacity of 100 cu m / h..; hole diameter 105 mm.	The package can be added IR remote control, a sensor for measuring the level of humidity.

Brand / Model / Photos	Specifications	Note
	for insertion into the channels with dimensions of 200 × 400 mm (height × width).	plate heat exchanger for rectangular channels.

Brand / Model / Photos	Specifications	Note
	dimensions of the rectangular channel of 200 × 400 mm.	design is a special connector for condensate. high efficiency provides the use of profiled aluminum plates with no more than 0.2 mm thick.

Brand / Model / Photos	Specifications	Note
	performance up to 200 cubic meters / hr.; maximum noise level of 39 dB; 146 mm diameter holes.	in this setting, plate heat exchanger is supplemented by fans, temperature sensors, Built-in monitoring and control unit. If necessary complement its drive dampers and a heating element.

Brand / Model / Photos	Specifications	Note
	Channel diameter (landing size) 149 mm.	air moving fan requires additional equipment. Here is a special case, which reduces the noise level. built-in filters offer air purification in the input and output channels.

Brand / Model / Photos	Specifications	Note
	. Productivity up to 105 cubic meters / hour; retains functionality at ambient temperature to -30 ° C.	ability to operate at extremely low temperatures is obtained with the integrated heating element. in compliance with the manufacturer's requirements of life will be more than 10 years.

Brand / Model / Photos	Specifications	Note
	power consumption is not more than 7 W; assembling the walls assume a thickness of 170 mm.	ceramic heat accumulator maintains its functional capacity for a long service life. using the remote control, you can quickly adjust performance.

Brand / Model / Photos	Specifications	Note
	.. The exchange of air with a capacity of up to 330 cubic meters / hour; electric power of 115 W; diameter duct 144 mm.	Modern microprocessor control unit, maintaining operability at lower temperatures to -28 ° C.

Brand / Model / Photos	Specifications	Note
	total power consumption not more than 116 W; performance up to 300 cubic meters. / hr.	insulated with mineral wool body to improve insulating properties. built-in filters ensure clean on the level of the standard G4.

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Fresh air valve in the wall.Ensure a healthy state of the atmosphere can be a variety of ways. If you set the air inlet in the wall - the problem will be resolved quickly. The special publication will consider how to properly select and install.

Manufacturing of air exchanger for the house with his own hands

For proper playback of production processes is better to start with a relatively simple technologies.

Such a structure can be assembled from standard corrugated sheets of galvanized steel. The protective covering is necessary to prevent the formation of corrosive processes. The unit case can be made of plywoodImpregnated with a water-resistant structure. If you make it out of the tin, it is necessary to install a layer of insulation. If you use a plate of expanded polystyrene, will not need additional waterproofing. Such products do not absorb water and do not pass. When you create a heat exchanger with his hands using landing sizes corresponding to the parameters of ventilation ducts. At the bottom of the case make a hole with a tap to drain accumulated condensate.

How to improve air heat exchanger for the house

General conclusions

To reduce the influence of external temperature, increase efficiency and ensure the stability of the equipment used special input channel. It is set in the ground at a depth below the freezing point. Unfortunately, such a device is only available to owners of their own houses and land. For city apartment will suit compact models. In the calculations, it is necessary to consider not only the current regulations, but also the mode of operation of individual rooms.