외기전담시스템 기반 초고층 공동주택 중앙 공급식 환기시스템의 적정 급기조건 설정 및 에너지 절감효과 분석 (Required Supply Air Conditions and Energy Saving Potentials of Dedicated Outdoor Air System with Parallel Cooling and Heating in a High-rise Apartment Building)

서지정보

· 발행기관 : 대한건축학회
· 수록지 정보 : 대한건축학회논문집 / 25권 / 6호 / 279 ~ 286페이지
· 저자명 : 정재원, 김민휘, 김유신, 김진효, 권오현

초록

The main thrust of this paper is to investigate optimized supply air conditions and energy saving potentials of a dedicated
outdoor air system (DOAS) applied to a highrise apartment building. As for a typical 132-m2 apartment unit, it was assumed
that two different systems; centralized DOAS-Ceiling Radiant Cooling Panel and decentralized Energy Recovery
Ventilator-Packaged Air Conditioner were installed. Transient behavior and control characteristics of each system were modeled
numerically using a commercial equation solver program, and annual cooling coil load and heating load reduction potentials were
compared. It was found in this research that DOAS-Ceiling Radiant Cooling Panel system can reduce the cooling coil load over
21% annually compared with the current Energy Recovery Ventilator-Packaged Air Conditioner pair. In addition, over 40% of
annual ventilation heating load can be reduced by use of DOAS when the enthalpy wheel and the sensible wheel of the DOAS
unit operate simultaneously. It was also found that the optimized dew point temperature of the DOAS supply air accommodating
total latent load of a space is 11-12°C.

영어초록

The main thrust of this paper is to investigate optimized supply air conditions and energy saving potentials of a dedicated
outdoor air system (DOAS) applied to a highrise apartment building. As for a typical 132-m2 apartment unit, it was assumed
that two different systems; centralized DOAS-Ceiling Radiant Cooling Panel and decentralized Energy Recovery
Ventilator-Packaged Air Conditioner were installed. Transient behavior and control characteristics of each system were modeled
numerically using a commercial equation solver program, and annual cooling coil load and heating load reduction potentials were
compared. It was found in this research that DOAS-Ceiling Radiant Cooling Panel system can reduce the cooling coil load over
21% annually compared with the current Energy Recovery Ventilator-Packaged Air Conditioner pair. In addition, over 40% of
annual ventilation heating load can be reduced by use of DOAS when the enthalpy wheel and the sensible wheel of the DOAS
unit operate simultaneously. It was also found that the optimized dew point temperature of the DOAS supply air accommodating
total latent load of a space is 11-12°C.

참고자료

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