Dedicated outdoor air system with separated supply and exhaust sections

클린룸 HVAC 및 공기 처리 장비

전용 실외 공기 시스템 (Dedicated Outdoor Air System)

A ventilation air system that independently controls outdoor-air moisture and temperature before delivering a measured dry-air quantity to clean spaces.

Independent Latent Control
Measured Ventilation Air
Energy-Recovery Ready
Stable Dry Supply Air

견적 요청 제품 찾아보기

상품 소개

A dedicated outdoor air system separates ventilation and latent treatment from the high recirculation airflow used for cleanroom particle control. It receives 100% outdoor air, recovers useful energy from a separated exhaust stream where appropriate, cools and dries the air, then reheats it to a neutral or designed supply condition. This division lets terminal recirculation units handle sensible load and filtration without relying on them to remove the full outdoor-air moisture load. Airflow, dew point and supply temperature can be monitored independently.

주요 기능

Ventilation airflow is measured independently from cleanroom recirculation air changes.

Deep dehumidification establishes a predictable supply dew point across seasonal outdoor conditions.

Plate, run-around or carefully selected rotary recovery can reduce outdoor-air heating and cooling load.

Reheat prevents overcooled ventilation air from causing local discomfort or excess sensible cooling.

고객 제품 관심사

When ventilation air and recirculation air are treated together, moisture control can drift as outdoor conditions and room sensible loads change independently.

The cleanroom becomes humid at low sensible load even though space temperature is stable.The DOAS controls outdoor-air dew point separately from room recirculation cooling.

Ventilation quantity is inferred from a damper position rather than measured.An airflow station and fan control maintain the scheduled outdoor-air volume.

Energy recovery risks transferring contaminants from exhaust to supply.A separated plate or run-around system is selected where cross-stream leakage cannot be accepted.

Cold dry ventilation air overcools perimeter or low-load rooms.Modulating reheat delivers a neutral or scheduled supply-air temperature after dehumidification.

일반적인 응용 프로그램

Pharmaceutical cleanroom ventilationLaboratory outdoor-air systemsMedical and research facilitiesHigh-humidity industrial locationsHealthcare clean zones

기술 매개변수

Typical double-skin construction for a cleanroom dedicated outdoor air system is listed below.

핵심 재료	Closed-cell polyurethane insulation in thermally separated double-skin panels
패널 두께	50–70 mm insulated casing
유효 폭	1000–3400 mm nominal casing width
최대 길이	Up to 12000 mm including recovery, coil, reheat and fan modules
강철 면면 두께	0.6–1.0 mm outer skin and 0.8–1.0 mm wet-section lining
코어 밀도	40–45 kg/m³ closed-cell polyurethane
열전도도 (Thermal Conductivity)	0.022–0.026 W/(m·K) for the casing insulation
표면 마무리	Powder-coated exterior with cleanable galvanized or stainless inner surfaces
접합 유형	Compression-gasketed thermal-break panels with isolated supply and exhaust air paths
사용자 정의	의도된 응용 프로그램 및 운영 환경에 따라 사용할 수 있습니다.

사용 가능한 옵션

Plate, rotary or run-around heat recoveryChilled-water, DX or heat-pump dehumidificationHot-gas, water or electric reheatSteam or adiabatic winter humidification

Planning a Dedicated Outdoor Air System specification?

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