eprintid: 6438 rev_number: 2 eprint_status: archive userid: 1 dir: disk0/00/00/64/38 datestamp: 2023-11-09 16:18:13 lastmod: 2023-11-09 16:18:13 status_changed: 2023-11-09 16:06:43 type: conference_item metadata_visibility: show creators_name: Xiaoming, Z. creators_name: Sato, A. creators_name: Kudo, Y. creators_name: Nakamura, T. creators_name: Okitsu, J. creators_name: Aoki, H. creators_name: Majid, M.A.A. title: A case study of electric chiller performance bottleneck diagnosis by root cause analysis ispublished: pub keywords: Absorption cooling; Carbon dioxide; Cooling; Cooling towers; District heating; Energy efficiency; Information systems; Thermoelectric equipment; Water absorption; Water supply, Coefficient of Performance; District cooling; District cooling system; Electrical chillers; High energy efficiency; Performance bottlenecks; Performance degradation; Root cause analysis, Cooling systems note: cited By 4; Conference of 1st International Conference on Information Technology, Information Systems and Electrical Engineering, ICITISEE 2016 ; Conference Date: 23 August 2016 Through 24 August 2016; Conference Code:125721 abstract: As one of the core cooling equipment in district cooling system, latest electric chiller can achieve high energy efficiency and low CO2 emission. In recent years, many researches have been conducted on cooling plant performance evaluation and anomaly detection, but very few can quantitatively detect root causes of electric chiller's performance anomaly. In the case study at district cooling plant of UTP (Universiti Teknologi PETRONAS), we adapted RCA (Root Cause Analysis) diagnosis method from steam absorption chiller to electric chiller; developed two bottleneck models for electric chiller's COP (Coefficient of Performance) and CHW (CHilled Water supply) performance diagnosis. By applying new RCA models and method to field trial at UTP campus cooling system, we effectively diagnosed the root cause for electric chillers' performance degradation during period from 2014 to 2015. © 2016 IEEE. date: 2016 publisher: Institute of Electrical and Electronics Engineers Inc. official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85011263029&doi=10.1109%2fICITISEE.2016.7803069&partnerID=40&md5=918a9c471cbafc5060843e87480faa32 id_number: 10.1109/ICITISEE.2016.7803069 full_text_status: none publication: Proceedings - 2016 1st International Conference on Information Technology, Information Systems and Electrical Engineering, ICITISEE 2016 pagerange: 174-179 refereed: TRUE isbn: 9781509015672 citation: Xiaoming, Z. and Sato, A. and Kudo, Y. and Nakamura, T. and Okitsu, J. and Aoki, H. and Majid, M.A.A. (2016) A case study of electric chiller performance bottleneck diagnosis by root cause analysis. In: UNSPECIFIED.