A water pipeline consists of three pump stations, each having one constant-speed motor-driven pump of 2000 HP. The analysis of current operations shows that the pipeline has been operating at a fairly constant flow rate of 3000 gal\/min, and the pump throttle pressures are as follows:
\nA water pipeline consists of three pump stations, each having one constant-speed motor-driven pump of 2000 HP. The analysis of current operations shows that the pipeline has been operating at a fairly constant flow rate of 3000 gal\/min, and the pump throttle pressures are as follows:
\nA water pipeline consists of three pump stations, each having one constant-speed motor-driven pump of 2000 HP. The analysis of current operations shows that the pipeline has been operating at a fairly constant flow rate of 3000 gal\/min, and the pump throttle pressures are as follows:<\/p>\n
Pump station 2:75 psi<\/p>\n
Pump station 3:85 psi<\/p>\n
Pump station 1 has zero throttle pressure. Trimming the pump impellers to the correct size so as to eliminate wasted HP from pump throttle is estimated to cost $50,000 per pump station. Retrofitting each pump station with VFD motor-driven pumps is estimated to cost $500,000 per pump station. The operating cost for the VFD units is $50,000 per site.<\/p>\n
(a) Determine the economics of installing trimmed impellers and the payment period based on 8% interest rate. Assume 80% pump efficiency for HP calculations and an electricity cost of 10 cents\/kWh.<\/p>\n
(b) If it was decided not to trim the pump impellers, compare the VFD motor option with the constant-speed pump option. Consider the control valve annual operating cost to be $5000 per site.<\/p>\n
—-
\nA water pipeline is made up of three pump stations, each with a 2000 HP constant-speed motor-driven pump. The pipeline has been operating at a fairly consistent flow rate of 3000 gal\/min, according to a review of current operations, and the pump throttle pressures are as follows:
\nA water pipeline is made up of three pump stations, each with a 2000 HP constant-speed motor-driven pump. The pipeline has been operating at a fairly consistent flow rate of 3000 gal\/min, according to a review of current operations, and the pump throttle pressures are as follows:
\nA water pipeline is made up of three pump stations, each with a 2000 HP constant-speed motor-driven pump. An examination of current operations reveals that the pipeline has been running at a reasonably steady rate.<\/p>\n","protected":false},"excerpt":{"rendered":"
A water pipeline consists of three pump stations, each having one constant-speed motor-driven pump of 2000 HP. The analysis of current operations shows that the\u2026<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8797,8792,8791,8795,8796,8798,8785,8800,8786,8784,8788,8794,8793,8789,8799,8790,8787],"tags":[7555,7554,7550,7553,7551,7558,7556,7552,7557,7324],"class_list":["post-92869","post","type-post","status-publish","format-standard","hentry","category-assignment-helper","category-assignment-writers","category-assignment-writing-services-near-me","category-best-assignment-writing-service","category-engineering-assignment-writing-service","category-essay-writing-help-free-essay-writer","category-homework-help-free","category-homework-help-global-tiktok-guy","category-homework-help-online","category-homework-help-websites","category-homework-solver","category-homework-writer-free","category-homework-writer-online","category-homework-writing-jobs","category-homework-writing-machine","category-homework-writing-services-online","category-top-homework-helper","tag-assignment-writer","tag-assignment-writing-service-uk-essays","tag-assignment-writing-service-uk-with-20-off-assignment-help","tag-cheap-assignment-writing-service-uk","tag-cheap-uk-assignment-writing-services","tag-custom-assignment-writing-and-proofreading-service","tag-online-assignment-help-uk","tag-uk-assignment-geek","tag-uks-1-experts-proofreaders-hire-our-thesis-advisors","tag-university-assignment-help"],"_links":{"self":[{"href":"https:\/\/www.studyproessays.com\/help\/wp-json\/wp\/v2\/posts\/92869","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.studyproessays.com\/help\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.studyproessays.com\/help\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.studyproessays.com\/help\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.studyproessays.com\/help\/wp-json\/wp\/v2\/comments?post=92869"}],"version-history":[{"count":0,"href":"https:\/\/www.studyproessays.com\/help\/wp-json\/wp\/v2\/posts\/92869\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.studyproessays.com\/help\/wp-json\/wp\/v2\/media?parent=92869"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.studyproessays.com\/help\/wp-json\/wp\/v2\/categories?post=92869"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.studyproessays.com\/help\/wp-json\/wp\/v2\/tags?post=92869"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}