Today heat recovery devices of recuperative type are incredibly popular. High-performance household appliances for houses and apartments - a supply valve or recuperator for a short time will update the air in the room, clean and moisturize it, passing the flow through the purification filter. Cumbersome ventilation systems are not suitable for use in private homes, therefore they give way to compact air recuperators of new technology.
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Air recuperation system
The use of modern achievements and advanced technologies with the use of devices of supply and exhaust ventilation systems is an indisputable fact.
Powerful air recuperation systems for the home during extraction can reduce heat loss in winter and summer heat in the process of air supply from the outside. Heat and moisture recovery from the room is carried out by heat exchangers in a continuous process with exchange between heat carriers through the separating wall of the unit.
The practical application of the recuperator in WWS is capable of:
- reduce ventilation and heating costs by up to 40%
- ensure a comfortable microclimate with a constant influx of fresh air.
Of course, ready-made units with an electric heater and a high-performance channel fan are able to provide maximum comfort.
Air handling unit with recuperator
The scheme and principle of operation of the supply and exhaust system is enlarged based on the use of a rotary or plate heat exchanger with the function "heating" / "cooling" and channel centrifugal supply and exhaust fans.
By the same principle, ventilation of monoblock units and air recuperators for a private house is organized. We can not hide the fact that the units of the exhaust ventilation are complex aggregates and not less complicated strapping. Installation of the recuperator in the system is carried out by qualified specialists. However, it is possible to install the household unit with your own hands, having received the basic concepts about the recuperator.
Basic knowledge and concepts of recuperators
classification, technical characteristics, designs and schemes of heat exchangers
Air recuperators for a private house, depending on the purpose of "heating-ventilation" and the route of movement of the coolant are divided into counterflow and direct-flow units.
Structurally the recuperators are divided into the used exchangers:
- plate with cross flow of coolant and counterflow
- rotary type of general purpose or specialized
- with heat exchange tubes and heat exchangers.
The highest efficiency is provided by a counterflow heat exchanger of the channel type (up to 95%), moderate efficiency of the plate heat exchanger with a cross flow of the heat carrier. Rotary heat exchanger with low resistance to heat flow is designed for ventilation installations. The unit is a cylindrical body of single-, double-channel type with alternately heating / cooling the steel plates of the heat exchanger.
The plate-type recuperator is structurally composed of cassettes or plates with separated channels. We will not hide, the aggregates are bulky and heavy.
Important parameters of the recuperator are its technical characteristics and calculated performance data.
Specifications
The main technical characteristics of the units are:
- Efficiency,%
- air capacity, m3 / h
- diameter of the working module and nozzle size, mm
- consumed power and power consumption, W
- volume of air exchange in the modes - "inflow / exhaust / night", m3 / hour.
The designs of heat exchangers are designed for installation and connection in rectangular, angular and circular channel configurations.
Calculation of efficiency and efficiency
Calculation of the recuperator is carried out according to the formulas:
Calculation of efficiency
Q = k x L x (t1 - t2),
where: k is the regional coefficient. (tabular data),
L is the air volume flow,
t1 is the inflow temperature,
t2 is the outflow temperature.
Performance calculation:
E = Q x n,
where: Q - energy costs for heating / cooling the flow
n is the efficiency of the device.
However, when calculating the recuperators, the drawbacks of aggregates with heat exchangers made of multilayer corrugated steel, like plate or cassette sheet made of galvanized steel, are not taken into account. And they are available. The high probability of freezing of the unit on the drawing side and the formation of condensate in the ventilation duct exclude the advantages of the MARLEY MEnV180 recuperator with a ceramic heat exchanger.
what is the recuperator MARLEY MEnV180
A compact heat exchanger up to 80-85% with a ceramic heat exchange element with a power consumption of 3.5-8W is a new representative of energy-saving household equipment.
Ceramic recuperator is a system ready for installation and operation with components:
- air duct of circular cross-section in the insulated jacket with adjustable flow of air volume of 37 m3 / h
- ceramic heat exchanger with a high surface area of the honeycomb body
- fan with three performance modes 15, 25 and 40 m³ / h
- replaceable coarse filters class G3 or G4
- external protected casing.
Lightweight equipment makes it possible to install and install a recuperator in private houses with walls of small thickness, in beams and frame houses with walls of = 170 mm, walls from SIP panels using a warmed hood with an elastic plaster layer.
To manufacture the MARLEY MEnV180 recuperator assembly, it is enough to prepare the technological holes for panel fastening and wiring.
Learn about the feasibility and the possibility of self-installation of air recuperator in a recall.
Feedback
Andrey Valentinovich, a private developer, 39 years old.
A year ago, in the summer, plastic windows were installed in our one-story house. In the autumn, the windows began to mist over with abundant condensation in the morning. Airing did not solve the problem, it was decided buy recuperator MARLEY MEnV180 with ceramic heat exchanger.
Why this one? The friend prompted and showed in work in his own cottage. The recuperator is quiet and there is no excess moisture. By the way, the friend helped to mount the wall using a drill bit, rented.
Install and connect easily, helped by detailed instructions with illustrations from the manufacturer.
To praise the advantages of German home appliances will not - clearly without unnecessary emotions.
How to install the recuperator, shown in the video.
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