• 대한설비공학회:학술대회논문집
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• 대한설비공학회 2008년도 하계학술발표대회 논문집
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• pp.517-522
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• 2008

Ventilation rate and filter were selected to simultaneously satisfy indoor air quality and minimize energy consumption in residential housing. The concentrations of indoor particles were calculated using an adapted mass balance model for various ventilation airflow rates. To satisfy the guidelines for indoor concentrations of particles, the minimum ventilation rates of 1.0/h, 0.6/h and 0.4/h were required for MERV11, MERV13 and MERV14, respectively. And the fan power consumptions induced by ducts, a heat exchanger and a filter were calculated for various ventilation airflow rates. The increase in the ventilation rate caused a dramatic increase in the power consumption, but the filter performance did not have much of an effect on the fan power for ventilation airflow rates lower than 0.4/h. The use of the ventilation filter of MERV 14 was suggested at a ventilation rate of 0.4/h when the fan power consumptions were considered in addition to the indoor concentrations of particles and $CO_2$. The use of the MERV14 filter at a ventilation rate of 0.6/h could be more effective than the additional use of an indoor air cleaner when the residential housing unit was ventilated.

• Journal of Power Electronics
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• 제12권6호
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• pp.1003-1010
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• 2012

Recent power electronics and variable-frequency motor drive technologies have been applied to air conditioners to improve efficiency and power density. However, the mechanical vibrations and acoustic noise resulting from the compressor still remain as a serious problem. This paper presents the development and implementation of an online disturbance state-filter for the suppression of multiple unknown and time-varying vibrations of air conditioning systems. The proposed design has a form of the state-filter based on a Luenburger-style closed-loop speed observer. An active vibration decoupling strategy with an estimated disturbance is provided, which manipulates a motor torque command. Since the proposed estimation does not require any additional transducers or hardware for obtaining real-time information upon disturbances, it is suitable for retrofitting industrial air conditioners.

• 공기청정기술
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• 제10권3호통권38호
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• pp.40-49
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• 1997

• 공기청정기술
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• 제3권3호통권11호
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• pp.12-25
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• 1990

• 공기청정기술
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• 제3권1호통권9호
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• pp.62-76
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• 1990

• 공기청정기술
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• 제3권1호통권9호
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• pp.135-136
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• 1990

• 공기청정기술
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• 제15권1호통권56호
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• pp.67-76
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• 2002

• 공기청정기술
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• 제15권1호통권56호
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• pp.77-83
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• 2002

• 한국대기환경학회:학술대회논문집
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• 한국대기환경학회 1999년도 추계학술대회 논문집
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• pp.465-466
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• 1999

섬유층 여과기(fibrous filter)는 일반적으로 공기여과기(air filter) 라고 불리는 여과기로 fiber의 직경, filter의 두께, 공극률, 하전 여부에 따라 그 용도가 다양하다. 전하를 가진 섬유로 제조한 정전 필터는 장시간 사용시에 일반 섬유층 필터에 비해 작은 압력강하와 높은 집진 효율을 나타내기 때문에 성능과 수명이 증가한다.(중략)

• 대한설비공학회:학술대회논문집
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• 대한설비공학회 2004년도 동계학술대회 논문집
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• pp.61-61
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• 2004