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":[7650,7624,1387,7654,667,7649,7652],"tags":[613,7594,1394,7598,7595,7593,7597,7599,7601,7590,7596,7591,7592],"class_list":["post-92622","post","type-post","status-publish","format-standard","hentry","category-assignment-writing-help","category-dissertation-help","category-dissertation-writing-service","category-healthcare-assignment-help","category-nursing-essay","category-research-essay-help","category-write-my-essay-online","tag-best-dissertation-writing-services-uk","tag-cheap-custom-essay-writing-services","tag-custom-research-paper-writers","tag-custom-research-papers-writing-service","tag-essay-writer-websites","tag-essay-writing-service-quality-cheap","tag-free-research-paper-writing-service","tag-help-me-write-a-research-paper","tag-i-need-help-with-my-dissertation","tag-professional-dissertation-writing-service","tag-quick-essay-writing-service","tag-top-rated-dissertation-writing-services","tag-top-uk-dissertation-writing-services"],"_links":{"self":[{"href":"https:\/\/www.studyproessays.com\/help\/wp-json\/wp\/v2\/posts\/92622","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=92622"}],"version-history":[{"count":0,"href":"https:\/\/www.studyproessays.com\/help\/wp-json\/wp\/v2\/posts\/92622\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.studyproessays.com\/help\/wp-json\/wp\/v2\/media?parent=92622"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.studyproessays.com\/help\/wp-json\/wp\/v2\/categories?post=92622"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.studyproessays.com\/help\/wp-json\/wp\/v2\/tags?post=92622"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}