SEMCO
8Pages

Catalog excerpts

eQ Air Handling Units The New Semco Rotary Heat Exchanger

Two of the most important factors affecting indoor air climate are the air temperature and the humidity but achieving comfort conditions can be very expensive. Our new Semco rotary heat exchanger radically reduces that cost by up to 50%. Air handling systems are fitted with heating and cooling systems designed to treat the air so that the correct condition is supplied to the room. Heating and especially cooling systems are expensive to install and run. This is why it is important to install efficient energy recovery. Rotary heat exchangers offer high efficiency in a compact design and often...

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In chilled beam systems it is necessary to control the humidity of the air to avoid condensation. Usually this means reducing the supply air humidity to 8-9 g/kg in order to keep the air dew point in the room below the chilled beam temperature. The following example compares the installed capacity and the energy consumption for a unit with a non hygroscopic wheel and a Semco rotor. The same conditions are used in both cases. The cooling power needed to cool air from 26°C dry bulb, 21°C wet bulb (12.7 g/kg) is 31,6 kW for each cubic meter per second of air. For 5m3/s that means 158 kW. Here...

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The Semco rotor brings benefits in all seasons CASE 1 - Summer Conditions When cooling warm outdoor air, the moisture in the air condenses to water. This takes a lot of energy and requires that the chiller is sized to cope with it. This is especially true in systems requiring special control of the humidity. Chilled beam systems are a common example. How? The Semco rotor is able to dehumidify and cool the outdoor air by transfering the heat and moisture to the exhaust air. Benefits • Smaller chiller installation • Smaller cooling circuit: Pumps, valves, pipes etc • Reduced refrigerant...

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CASE 2 - Winter Conditions Heat recovery systems often face frost problems on cold winter days.The problem occurs when the humidity in the exhaust air condensates on the recovery system and turns into ice with the impact on reduced recovery and increased pressure losses in the device which in the end blocks the air flow totally in the AHU. To avoid this scenario most recovery systems are equipped with frost protection which cost energy and money. The Semco rotor can solve the frost problem. How? The Semco rotor recovers the moisture in the extract air and transfers it to the supply air...

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The Effects of Dry Air on Comfort and Hygiene Dry air has significant effects on people and processes. It affects people’s comfort and health and, consequently, their performance at work. In northern Europe, low relative humidity in the workplace occurs primarily in the winter and, with increasingly high summer temperatures, is becoming more significant in warmer months, too. The optimum level of relative humidity for people is around 50%. On colder days, the humidity level inside can be as low as 15-20% even when it’s damp outside, it can be drier than the Sahara inside. Electrostatic...

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Acon - Powerful and easy product selection Acon is our tool for the selection and planning of air handling units. It is the best and most advanced of it´s kind on the Web. Product dimensions Delivery time Performance data Dxf and Dwg files can be exported to CAD software Efficiency Magicad Life Cycle Cost calculation Product documentation always up to date Air Handling Units can be selected with the new Semco rotor. The benefit in terms energy reduction and installed power is prestented clearly so that the payback on investment can be calculated. Fläkt Woods has the capability to combine...

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We Bring Air to Life Fläkt Woods is a global leader in air management. We specialize in the design and manufacture of a wide range of air climate and airmovement solutions. FWG-eQ Air Handling Units - with the best cooling recovery EN-2012-.09 9244 Our collective experience is unrivalled. We are constantly aiming to provide systems that precisely deliver required function and performance as well as maximum energy efficiency. Fläkt Woods Group SA 18, avenue Louis Casaï, CH-1209 Geneva, Switzerland Tel. +41 22 309 3800 email info@flaktwoods.com www.flaktwoods.com See global web site for...

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SEMCO 8Pages

Catalog excerpts

All Fläkt Woods Group catalogs and technical brochures

SEMCO
8Pages