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.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 282-287 |
| Number of pages | 6 |
| Journal | ASHRAE Transactions |
| Volume | 114 PART 1 |
| State | Published - 2008 |
| Externally published | Yes |
| Event | 2008 Winter Meeting in New York City, New York of the American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. - New York City, NY, United States Duration: Jan 19 2008 → Jan 23 2008 |
ASJC Scopus subject areas
- Mechanical Engineering
- Building and Construction