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»ç¹«¼Ò °Ç¹°ÀÇ Á÷ÆØ½Ä AHU-¼ö·©½Ä VRF¿Í ÀÏ¹Ý °øÁ¶ ½Ã½ºÅÛÀÇ ³Ã¹æ ¿¡³ÊÁö ¼º´É ºñ±³ ºÐ¼® / Comparison of Cooling Energy Performance Between DX AHU-Water Source VRF System and Conventional AHU System in an Office Building / ±¸µÎ¹ßÇ¥ - 18.°Ç¹°¿¡³ÊÁö/°øÁ¶ºÎÇÏ |
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´ëÇѼ³ºñ°øÇÐȸ 2017³âµµ ÇϰèÇмú¹ßÇ¥´ëȸ (2017-06) |
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»ó¾÷¿ë °Ç¹° ; ¿¡³ÊÁöÇ÷¯½º ; VRF ½Ã½ºÅÛ ; ¸ÅÆ®·¦ ; ³Ãµ¿±â ; Commercial building ; EnergyPlus ; VRF system ; BCVTB ; Matlab ; Chiller |
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The term variable refrigerant flow (VRF) refers to the ability of the system to control the amount of refrigerant flowing to the multiple evaporators (indoor units), enabling the use of many evaporators of differing capacities and configurations connected to a single condensing unit. The purpose of this paper is to comparatively assess the cooling energy performance between direct expansion (DX) air handling unit (AHU)-water source VRF system and conventional AHU system through co-simulation between EnergyPlus and Matlab. Advanced control logic using EMS function was used in EnergyPlus for outdoor unit modeling and prediction models for cooling tower, boiler, pump were constructed in Matlab. As a result, DX AHU-water source VRF system can achieve the cooling energy saving by 14% compared to the conventional AHU system. |