The prototype consists of a transparent combination of cross-flow heat exchanger with mm80 * 180 *

The CO2 concentration in the room is activated and can be used as a fire alarm in an emergency operation of the window 750 * 200 * 180 mm Knd.abad Series meters can be installed in a window or outside wall. After testing the prototype in Iceland and the Netherlands, the predicted heat transfer efficiency of 95% answered. Dr20 degree temperature difference between the air inside and outside the fan 4 watt heat exchange capacity of 50 cubic meters per hour, 320 watts of thermal energy store. Traditional electrical efficiency of 40% with the energy storage capacity is 300 watts. vks So the total energy output vks window Nafs (box) 89% of the heat exchanger system wire is only 18 psi pressure vks and fan Nafs windows in the prototype, about 30 db sound that should be considered in a later version . A number of obstacles in system installations can be clearly seen today are: 1. The quality of outdoor air, indoor air quality houses vks in the Netherlands has had some remarkable vks results. According to research house Evert Hasselaar Dr500 different vks group, it was concluded that 3/2 homes with mechanical ventilation, due to dirty air capacity declined by about 10% per year due to persecution and sometimes vks the engine sound conditioning mechanical cut. Another discovery was that the 5/4 houses, natural ventilation room main bedroom had a small 2-seater that in 29% of these homes due to traffic noise, even at night was to open the window. CO2 concentration is very high and very fine dust was found in the house. vks Also the bathroom 3 times a day for showering commonly used "air-drying was very small and it was dark spots appear. Another point is that a significant difference between the internal bath and shower that there was only one window Drdyvar exterior walls and clay baths that have been drawn up with a low level easier to clean the facility Shdnd.2-: the study of existing ventilation building residential, commercial and industrial Netherlands shows that many differences between vks the results predicted and what is actually achieved. Mvsrbartnd of ideas, design, supply, implementation, monitoring, implementation, use and maintenance and a great deal based on the phase errors are there.
Drfazmfhvmy climate Mmarbayd vks inner cross section of conventional design and facility managers and consultants to explain it. In practice vks many of the skills needed. All heating systems, ventilation, air conditioning system without localization by design consultants that are usually "hidden in the ceiling and the ceiling to hide the air duct is used, about 15% of the building's capture.
3. Review of the facility, the facility houses are actually due to the annoying sound of the valve steel heat exchanger quick and dirty room, the ceiling and the residents will not be welcomed. Larger installations are "more frequently but need more space and produce a lot of heat, which means less comfort and high cost of heat and cold is the maximum load.
4. Use and storage: vks advancing toward the long-term good. Survey research shows that heat exchanger home with air conditioning barely kept the balance is blocked vks with dust. Also 3/2 of mechanical ventilation that is actually specified in the bylaws to provide free air flow will not build new buildings. Consumers generally do not have any comment on the mechanical behind their impact in terms of mechanical vks ventilation in large buildings, buildings that are considered repugnant to people who have a sense of imprisonment in the sense of embedded inappropriate technology in the drop-down window dissolves . New high-efficiency ventilation: We start again from scratch, a good building, a stable architecture and Vhvshmnd behind their guests vks are relaxed. Nafs been thinking for years about the idea of making a window and how it is accessed, or in what form, is still not generally known. World-wide investigation of the heat exchanger has lasted vks many years and finally to show a heat exchanger that was invented by a doctor ir.noorvan andel, was scored (Fig. 3V4) Dimensions for the selected window is synchronized with traditional exterior wall insulation is composed of two layers and depth.
The prototype consists of a transparent combination of cross-flow heat exchanger with mm80 * 180 * 450 which is less than the heat exchanger WIRE kg 1 body weight and easy to wash the washing is the standard.
Sensors of CO2 concentration in ppm 500 to Tvratvmatyk is clear, also at a concentration of 1200 ppm of a signal light, and when the concentration of 1700 ppm was a sound mark means opening certain doors and window to keep the air inside can be heard . The following question arises:
Whenever the noise level is 30 db ventilator 4Vat capacity is not high. Large pore air, low air velocity vks as well as increases the effect of wind on tall buildings has. Ventilation systems in tall buildings with huge loss of balance during the storm comes.
Figure 7: Results of Iceland to deal with this issue, enclose the horizontal air and exhaust ducts with heavy winds recommended, because in this situation would be a good natural ventilation. According to calculations, the average thermal vks efficiency of 95% should have a prototype. vks A prototype of a kitchen window on the island of Iceland in 2003 to try