• 제목/요약/키워드: 슬래브 축냉

검색결과 2건 처리시간 0.009초

사무소건물의 슬래브축냉을 위한 내부발열부하의 확률적 성상 모델화 (Modeling of Stochastic Properties of Internal Heat Generation of an Office Building for Slab Cooling Storage)

  • 정재훈
    • 설비공학논문집
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    • 제23권12호
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    • pp.836-842
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    • 2011
  • It has been shown that the air-conditioning system with slab cooling storage is effective in cutting peak load and utilizing nighttime electric power. The stochastic properties of internal heat generation which has great influence on the cooling load are examined in this paper. Based on the measured cooling load and electric power consumption in an office building with slab cooling storage, stochastic time series models to simulate these random processes are investigated. Furthermore, a calculated result by an optimal control method of thermal analysis taking into account the internal heat is compared with the measured cooling load.

내부발열의 확률적 성상을 고려한 슬래브축냉의 최적제어 (A Study on Optimal Control of Slab Cooling Storage Considering Stochastic Properties of Internal Heat Generation)

  • 정재훈
    • 설비공학논문집
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    • 제27권6호
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    • pp.313-320
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    • 2015
  • In this paper, a method to obtain the probability distribution of room temperature and cooling load is presented, when the internal heat generation is applied to the system as a disturbance in the air conditioning system with slab cooling storage. The probability distribution of room temperature and the cooling load due to the disturbance were examined in one room of an office building. When considering only the electric power consumption as a probability component, it was found that the effect on room temperature and cooling load is small, because the probability component of the measured electric power consumption in the building is small. On the other hand, when considering the stochastic fluctuations of electric power consumption together with the heat generated by human bodies, the mean value of the cooling load was about 2,300 W and the ratio of the standard deviations was 19% (10 o'clock in second day). It was revealed that the stochastic effects of internal heat generation acting on the air conditioning system with slab cooling storage are not small.