{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,5,14]],"date-time":"2025-05-14T10:38:55Z","timestamp":1747219135394,"version":"3.40.5"},"posted":{"date-parts":[[2022,12,16]]},"group-title":"Mathematics","reference-count":0,"publisher":"Cambridge University Press (CUP)","license":[{"start":{"date-parts":[[2022,12,16]],"date-time":"2022-12-16T00:00:00Z","timestamp":1671148800000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/publicdomain\/zero\/1.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"accepted":{"date-parts":[[2022,11,10]]},"abstract":"<jats:p>Hydropressor systems are of paramount importance in keeping water supplies running properly. A typical such device consists of two (or more) identical electropumps operating alternately, so as to avoid downtime as much as possible. A first challenge was, considering a dual pump configuration, to identify the ideal usage proportion of each pump (from 0%-100%, meaning interchange only upon failure, to 50%-50%, where each pump works half the time) in order to improve availability, accounting solely for corrective maintenance. A second challenge, related to the first one, consisted of improving the availability of a single pump under the hazard of failure in three different ways (with their own occurrence frequencies), while accounting also for preventive maintenance. Each challenge was tackled through Monte-Carlo simulation and the models were implemented with the Python programming language. The results seem to indicate that significant improvements to standard industry practice can be made.<\/jats:p>","DOI":"10.33774\/miir-2022-ntj1x","type":"posted-content","created":{"date-parts":[[2022,12,16]],"date-time":"2022-12-16T15:48:01Z","timestamp":1671205681000},"source":"Crossref","is-referenced-by-count":0,"title":["Availability of Hydropressor Systems"],"prefix":"10.33774","author":[{"given":"Sandra","family":"Aleixo","sequence":"first","affiliation":[{"name":"Instituto Superior de Engenharia de Lisboa"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3407-7757","authenticated-orcid":false,"given":"Ricardo","family":"Engui\u00e7a","sequence":"additional","affiliation":[{"name":"Instituto Superior de Engenharia de Lisboa"}]},{"given":"S\u00e9rgio","family":"Lopes","sequence":"additional","affiliation":[{"name":"Instituto Superior de Engenharia de Lisboa"}]},{"given":"Iola","family":"Pinto","sequence":"additional","affiliation":[{"name":"Instituto Superior de Engenharia de Lisboa"}]},{"given":"Pedro","family":"Matias","sequence":"additional","affiliation":[{"name":"Universidade Lus\u00f3fona"}]},{"given":"Luc\u00eda","family":"Fernandez-Suarez","sequence":"additional","affiliation":[{"name":"Instituto Superior de Engenharia de Lisboa"}]}],"member":"56","container-title":[],"original-title":[],"link":[{"URL":"https:\/\/www.cambridge.org\/engage\/api-gateway\/miir\/assets\/orp\/resource\/item\/636ce700deff976246dedd0e\/original\/availability-of-hydropressor-systems.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2022,12,16]],"date-time":"2022-12-16T15:48:01Z","timestamp":1671205681000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.cambridge.org\/engage\/miir\/article-details\/636ce700deff976246dedd0e"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,12,16]]},"references-count":0,"URL":"https:\/\/doi.org\/10.33774\/miir-2022-ntj1x","relation":{},"subject":[],"published":{"date-parts":[[2022,12,16]]},"subtype":"preprint"}}