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Architecture & Urban Research Institute

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³í¹®¸í »ç¹«¼Ò °Ç¹°¿¡¼­ ³Ãµ¿±âÀÇ ´ë¼öÁ¦¾î¸¦ ÅëÇÑ ³Ãµ¿±â °Åµ¿ Ư¼º ¹× ¿¡³ÊÁö Àý°¨ È¿°ú ºÐ¼® / Detailed Analysis on Operation Characteristics and Cooling Energy Saving Effect of Chiller Staging in an Office Building
ÀúÀÚ¸í ¼­º´¸ð½Äº°ÀúÀÚ ; ¼ÕÁ¤Àº ; À̱¤È£
¹ßÇà»ç ´ëÇѼ³ºñ°øÇÐȸ
¼ö·Ï»çÇ× ¼³ºñ°øÇÐ³í¹®Áý, Vol.28 No.04 (2016-04)
ÆäÀÌÁö ½ÃÀÛÆäÀÌÁö(137) ÃÑÆäÀÌÁö(8)
ISSN 1229-6422
ÁÖÁ¦ºÐ·ù ȯ°æ¹×¼³ºñ
ÁÖÁ¦¾î »ó¾÷¿ë °Ç¹° ; ºÎºÐºÎÇÏÀ² ; ³Ãµ¿±â ´ë¼öÁ¦¾î ; ¼º´É°è¼ö ; ¿¡³ÊÁö Ç÷¯½º ; Commercial building ; Part load ratio ; Chiller staging ; Coefficient of performance ; EnergyPlus
¿ä¾à2 Commercial buildings account for a significant proportion of the total building energy use in Korea, and cooling energy, in turn, accounts for the largest proportion of total energy consumption in commercial buildings. Under this circumstance, chiller staging is considered to be a reasonable and practical solution for cooling energy saving. In this study, the part-load ratio and the operating characteristics of a vapor compression chiller were analysed within an office building. In addition, energy consumption among different chiller staging schemes was comparatively analysed. As a result, significant proportions of total operating hours, cooling load and energy consumption turned out to be in the part load ratio range from 0% through 50%, and thus energy consumption was significantly affected by the chiller COP at low part-load conditions, indicating that the chiller operation at the part-load is an important factor in commercial buildings. In addition, utilizing a sequential chiller staging scheme can reduce the annual cooling energy usage by more than 10.3% compared to operating a single chiller.
¼ÒÀåó ´ëÇѼ³ºñ°øÇÐȸ
¾ð¾î Çѱ¹¾î
DOI http://dx.doi.org/10.6110/KJACR.2016.28.4.137
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