Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/73771
Title: Predictive and diagnostic methods for centrifugal chillers
Authors: Saththasivam, J.
Ng, K.C. 
Issue Date: 2008
Source: Saththasivam, J.,Ng, K.C. (2008). Predictive and diagnostic methods for centrifugal chillers. ASHRAE Transactions 114 PART 1 : 282-287. ScholarBank@NUS Repository.
Abstract: This paper describes how the performance of chillers can be predicted by the Simple Thermodynamic Model (Gordon-Ng Universal Chiller Model) at steady state conditions that span across assorted coolant temperatures. It focuses on diagnostic capabilities of the simple thermodynamic approach using the published data from a 90-ton centrifugal chiller. Five different types of degrading chiller faults (reduced condenser water flow, condenser fouling, refrigerant overcharge, non-condensable in refrigerant and excessive oil in compressor) were succinctly detected by the model based on physically meaningful parameters of chillers. ©2008 ASHRAE.
Source Title: ASHRAE Transactions
URI: http://scholarbank.nus.edu.sg/handle/10635/73771
ISSN: 00012505
Appears in Collections:Staff Publications

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