eprintid: 1526 rev_number: 2 eprint_status: archive userid: 1 dir: disk0/00/00/15/26 datestamp: 2023-11-09 15:49:41 lastmod: 2023-11-09 15:49:41 status_changed: 2023-11-09 15:40:48 type: conference_item metadata_visibility: show creators_name: Abd Majid, M.A. creators_name: Reshid, M.N. title: Multi-state availability and reliability assessment of electric chillers of a district cooling plant ispublished: pub keywords: Chilled water; Confidence levels; Data clustering; Developed model; District cooling; Electric chillers; Markov method; Markov model; Multi state; Performance data; Reliability assessments; State space diagram, Availability; Clustering algorithms; Cooling towers; Differential equations; District heating; Markov processes; Reliability; Reliability analysis, Cooling systems note: cited By 3; Conference of 2011 IEEE Colloquium on Humanities, Science and Engineering, CHUSER 2011 ; Conference Date: 5 December 2011 Through 6 December 2011; Conference Code:89137 abstract: Study on availability and reliability of electric chillers (EC) at a co-generated district cooling plant using Markov model is presented in this paper. Five years performance data were used to determine the states of the models covering the full working, partial working and failed states. State space diagram is used to indicate the possible operating scenario of the EC. The differential equations were formulated to evaluate the availability and reliability of the chilled water generated by the EC. Results from the analysis indicate that the model is able to predict the EC availability with 95 per cent confidence level in comparison with the actual data. While for the case of reliability, the values obtained by the model are comparable with the traditional binary reliability. In conclusion the developed models could be useful to predict the availability and reliability of EC at the district cooling plant. © 2011 IEEE. date: 2011 official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84858995656&doi=10.1109%2fCHUSER.2011.6163711&partnerID=40&md5=cd733f7f31ada6e7f832aa5b1874dfa6 id_number: 10.1109/CHUSER.2011.6163711 full_text_status: none publication: 2011 IEEE Colloquium on Humanities, Science and Engineering, CHUSER 2011 place_of_pub: Penang pagerange: 178-183 refereed: TRUE isbn: 9781467300193 citation: Abd Majid, M.A. and Reshid, M.N. (2011) Multi-state availability and reliability assessment of electric chillers of a district cooling plant. In: UNSPECIFIED.