Energy-saving modes for supply air preparation in comfort air conditioning systems

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Abstract

In comfort air conditioning systems during preparation of the inlet outside air its humidification is necessary. The company “Venta” has developed and produces a compact apparatus for adiabatic humidification; its use in systems of ventilation and air conditioning leads to reduction of operational and capital expenditures.

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O. Ya. Kokorin

MGSU

Author for correspondence.
Email: info@eco-vector.com

Doctor of Engineering, Sciences, Prof.

Russian Federation

V. V. Komissarov

MGSU

Email: info@eco-vector.com

Doctor of Engineering, Sciences, Prof.

Russian Federation

A. V. Safronov

MGSU

Email: info@eco-vector.com

Doctor of Engineering, Sciences, Prof.

Russian Federation

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2. Rice. 1. Construction on the I-d-diagram of the year-round operation modes of the comfortable air conditioning system: H-HX - averaged values ​​of year-round changes in outdoor air parameters in the climate of Moscow. Warm season: H-Nnight - daily changes in outdoor air parameters; H-OH - cooling of the sanitary standard of the supply air in the air cooler of the central supply unit; OH -PN - heating in the fan and supply air ducts; ПН—В—У—absorption of heat and moisture emissions in the room by the cooled fresh air; ОХ.М—В is the absorption of excess heat by the internal air cooled in the DE; OH.M-PN-P - mixing in the DE of supply outdoor and cooled indoor air. P.UU—PN.K—heating in the first heating heater; PP.K—PN.Kh is adiabatic humidification; PP.Kh-PKh-V.Kh - mixing in the ejection closer; ПН.Х—У1 - absorption of heat and moisture in the serviced premises

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3. Rice. Fig. 2. Daily changes in the thermal regime in an administrative building with a window to the south in the climate of Moscow during the warm period of the year: 1c - air temperature in the working area; 1n - outdoor air temperature; toxnH is the temperature of the cooled supply air; Ql+lC0M are constant sensible heat inputs from people and service equipment; Q is the heat of solar radiation penetrating into the room; Qm izb - total heat surplus in the room

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4. Rice. Fig. 3. Scheme of the supply unit from the units of air conditioners STA manufactured by Venta1 - air valves interlocked with the magnetic starter MP of the fan unit; 2 - air filter; 3 - heat-releasing heat exchanger of the utilization plant; 4 - connecting pipelines to the heat-extracting heat exchanger in the exhaust unit; 5 - heater; 6 - hot water circulation pipelines through the heater; 7—automatic valve controlled by a sensor for monitoring the minimum value of the supply air temperature by a wet thermometer tnHMx; 8 - block of adiabatic humidification with an irrigated layer; 9 - water circulation pump; 10 - control sensor 1pnmkh connected by wires with automatic valve 7 and pump 9; 11 - air cooler; 12 - cold water circulation pipelines; 13 - automatic valve connected to the control sensor 14 t ; 15 - supply fan; 16 - supply air duct to the local DE in the premises

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Copyright (c) 2022 Kokorin O.Y., Komissarov V.V., Safronov A.V.

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