定轉速離心式冰水主機加裝變頻模組節能效益之研究

隨著變頻模組的發展趨近完善，價格也越來越親民，空調系統上也相當廣泛的應用，在以前被歸類為非必要性的選配設備，近年來也似乎成為能源節約改善的主要裝設設備之一，依近幾年變頻模組發展的技術，馬力數較大的冰水主機也能夠安裝使用。本研究案例之數據採用大樓能源管理系統所記錄的實際設備運轉數據作為改善前後分析資料，另一方面也對於將變頻模組應用在離心式冰水主機時，冷媒導流翼(IGV)開度、變頻器頻率、冷卻水進/出水溫度、冰水進/出水溫度及冰水主機效率等各數據之相互關係進行探討。研究中將定轉速離心式冰水主機改造為變轉速離心式冰水主機，對於其改善前後節能成效，先利用電腦模擬軟體預估，再對於實際紀錄之運轉數據做為分析。在本案例中預估改善後全年節能效益為14.5%，實際改善後全年節能效益為34.9%，其中節能比例以1月份53.3%為最高。

關鍵字

離心式冰水主機；變轉速離心式冰水主機；變頻器；冰水主機節能效益

並列摘要

Variable Speed Drive is wide application in air-conditioner industrial. It is one of the major device for energy saving strategy. Recenly, Variable Speed Drive is fully developed. The high capacity Variable Speed Drive becomes more popular because lower price and performance are improved. The research case used energy management system to record data in order to analysis running data when applying variable speed drive retrofit for a fixed speed centrifugal chiller. The measured data include chiller energy consumption, inter-guide-vane open percentage, frequency of speed, entering and leaving water temperature of the condenser, entering and leaving water temperature of the evaoprator, and efficiency of chiller. This reseach used computer software“Chiller System optimizer”to estimate the chiller energy consumption in Taipei climate, then analyzed the relationship between all of the collected data. To sum up this research of variable speed drive retrofit for a fixed speed centrifugal chiller, the simulation software estimates the total annual energy saving is 14.5% in this case. The actual annual energy consumption saving was 34.9%, and the highest saving ratio happened in January.

並列關鍵字

Variable Speed Drive ； Centrifugal Chiller ； Energy Savings

參考文獻

[10] 劉青龍，2005，變頻離心式冰水主機之節能分析，碩士論文，國立台北科技大學冷凍與低溫科技研究所碩士班

[19] 林憲德、黃國倉，台灣TMY2標準氣象年之研究與應用，2005年9月，建築學報53期， P.74-94

[5] Frank J. Lenarduzzi, P.Eng, P.E. Steven S. Yap, P.Eng , Measuring the Performance of a Variable-Speed Drive Retrofit on a Fixed-Speed Centrifugal Chiller, ASHRAE TO-98-6-3, ATLANTA: American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc., pp.2-3, 1998

[11] 徐金輝，2006，變頻離心式冰水機節能效益之研究，碩士論文，國立台北科技大學冷凍空調工程研究所

[12] 陳肇元，2007，冰水主機性能提升與節能驗證方法之探討，碩士論文，，國立台北科技大學能源與冷凍空調工程系碩士班

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定轉速離心式冰水主機加裝變頻模組節能效益之研究

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