{"id":14462,"date":"2020-11-24T09:09:23","date_gmt":"2020-11-24T09:09:23","guid":{"rendered":"http:\/\/onlineclassesguru.com\/index.php\/2020\/11\/24\/mechanical-engineering-a-helicopter-of-mass-12000-kg-hovers-at-sea-level\/"},"modified":"2020-11-24T09:09:23","modified_gmt":"2020-11-24T09:09:23","slug":"mechanical-engineering-a-helicopter-of-mass-12000-kg-hovers-at-sea-level","status":"publish","type":"post","link":"https:\/\/onlineclassesguru.com\/index.php\/2020\/11\/24\/mechanical-engineering-a-helicopter-of-mass-12000-kg-hovers-at-sea-level\/","title":{"rendered":"Mechanical engineering A helicopter of mass 12,000 kg hovers at sea level"},"content":{"rendered":"<style type=\"text\/css\"><\/style><p>1- A helicopter of mass 12,000 kg hovers at sea level with a load of 16,113 kg. The horizontal blades above the helicopter cause a 18-m-diameter air mass to move downward at an average velocity proportional to the over-head blade rotational velocity (rpm). Determine the\u00a0<a href=\"https:\/\/homeworkhandlers.com\/power\/\">power<\/a>\u00a0input in kW required to hover with the load. Take the density of atmospheric air to be 1.18 kg\/m3. Assume air approaches the blades from the top through a large area with negligible velocity and air is forced by the blades to move down with a uniform velocity through an imaginary cylinder whose base is the blade span area. The elevation effects are negligible, and the frictional effects can be disregarded.<\/p>\n<p>2-A pump is used to lift the\u00a0<a href=\"https:\/\/homeworkhandlers.com\/water\/\">water<\/a>\u00a0from a large reservoir to 28.7 m above at a rate of 0.0264 m3\/s by a 10.4 kW pump. If the mechanical efficiency of the pump is 65.8 % determine the irreversible head loss (in meter) of the piping system. The density of water is 1000 kg\/m3. The flow is steady and incompressible.<\/p>\n<p>4-The impeller of a centrifugal pump has inner and outer diameters of 13 and 30 cm, respectively, and a flow rate of 0.68 m3\/s at a rotational speed of 1200 rpm. The blade width of the impeller is 8 cm at the inlet and 3.5 cm at the outlet. If water enters the impeller in the radial direction and exits at an angle of 60\u00b0 from the radial direction, determine the minimum powerrequirement in kW for the pump.<\/p>\n<p>Textbook that can help is Fluid Mechanics Fundamentals and Applications, 3rd Edition Cengel, Yunus; Cimbala, John, McGraw Hill<\/p>\n<p>Chapter 4,5 and 6.<\/p>\n<p><center><a href=\"http:\/\/onlineclassesguru.com\/orders\/ordernow\"><img decoding=\"async\" src=\"https:\/\/encrypted-tbn0.gstatic.com\/images?q=tbn:ANd9GcTyj99p60XCLyLk1htB7-1neRt8-2QdnenNlQ&usqp=CAU\"target=\"_http:\/\/onlineclassesguru.com\/orders\/ordernow\"\/><\/center><p>","protected":false},"excerpt":{"rendered":"<p>1- A helicopter of mass 12,000 kg hovers at sea level with a load of 16,113 kg. The horizontal blades above the helicopter cause a 18-m-diameter air mass to move downward at an average velocity proportional to the over-head blade rotational velocity (rpm). Determine the\u00a0power\u00a0input in kW required to hover with the load. Take the&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-14462","post","type-post","status-publish","format-standard","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v17.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Mechanical engineering A helicopter of mass 12,000 kg hovers at sea level - onlineclassesguru<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"http:\/\/onlineclassesguru.com\/index.php\/2020\/11\/24\/mechanical-engineering-a-helicopter-of-mass-12000-kg-hovers-at-sea-level\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Mechanical engineering A helicopter of mass 12,000 kg hovers at sea level - onlineclassesguru\" \/>\n<meta property=\"og:description\" content=\"1- A helicopter of mass 12,000 kg hovers at sea level with a load of 16,113 kg. The horizontal blades above the helicopter cause a 18-m-diameter air mass to move downward at an average velocity proportional to the over-head blade rotational velocity (rpm). Determine the\u00a0power\u00a0input in kW required to hover with the load. Take the...\" \/>\n<meta property=\"og:url\" content=\"http:\/\/onlineclassesguru.com\/index.php\/2020\/11\/24\/mechanical-engineering-a-helicopter-of-mass-12000-kg-hovers-at-sea-level\/\" \/>\n<meta property=\"og:site_name\" content=\"onlineclassesguru\" \/>\n<meta property=\"article:published_time\" content=\"2020-11-24T09:09:23+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin_admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebSite\",\"@id\":\"https:\/\/onlineclassesguru.com\/#website\",\"url\":\"https:\/\/onlineclassesguru.com\/\",\"name\":\"onlineclassesguru\",\"description\":\"Cheap Professional coursework and reaction papers help\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/onlineclassesguru.com\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"http:\/\/onlineclassesguru.com\/index.php\/2020\/11\/24\/mechanical-engineering-a-helicopter-of-mass-12000-kg-hovers-at-sea-level\/#webpage\",\"url\":\"http:\/\/onlineclassesguru.com\/index.php\/2020\/11\/24\/mechanical-engineering-a-helicopter-of-mass-12000-kg-hovers-at-sea-level\/\",\"name\":\"Mechanical engineering A helicopter of mass 12,000 kg hovers at sea level - onlineclassesguru\",\"isPartOf\":{\"@id\":\"https:\/\/onlineclassesguru.com\/#website\"},\"datePublished\":\"2020-11-24T09:09:23+00:00\",\"dateModified\":\"2020-11-24T09:09:23+00:00\",\"author\":{\"@id\":\"https:\/\/onlineclassesguru.com\/#\/schema\/person\/1831fa4d28e47b468621cf27932f5742\"},\"breadcrumb\":{\"@id\":\"http:\/\/onlineclassesguru.com\/index.php\/2020\/11\/24\/mechanical-engineering-a-helicopter-of-mass-12000-kg-hovers-at-sea-level\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"http:\/\/onlineclassesguru.com\/index.php\/2020\/11\/24\/mechanical-engineering-a-helicopter-of-mass-12000-kg-hovers-at-sea-level\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"http:\/\/onlineclassesguru.com\/index.php\/2020\/11\/24\/mechanical-engineering-a-helicopter-of-mass-12000-kg-hovers-at-sea-level\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/onlineclassesguru.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Mechanical engineering A helicopter of mass 12,000 kg hovers at sea level\"}]},{\"@type\":\"Person\",\"@id\":\"https:\/\/onlineclassesguru.com\/#\/schema\/person\/1831fa4d28e47b468621cf27932f5742\",\"name\":\"admin_admin\",\"image\":{\"@type\":\"ImageObject\",\"@id\":\"https:\/\/onlineclassesguru.com\/#personlogo\",\"inLanguage\":\"en-US\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/429c8d043f7a770af242b0031e8b9f2b?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/429c8d043f7a770af242b0031e8b9f2b?s=96&d=mm&r=g\",\"caption\":\"admin_admin\"},\"url\":\"https:\/\/onlineclassesguru.com\/index.php\/author\/admin_admin\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Mechanical engineering A helicopter of mass 12,000 kg hovers at sea level - onlineclassesguru","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"http:\/\/onlineclassesguru.com\/index.php\/2020\/11\/24\/mechanical-engineering-a-helicopter-of-mass-12000-kg-hovers-at-sea-level\/","og_locale":"en_US","og_type":"article","og_title":"Mechanical engineering A helicopter of mass 12,000 kg hovers at sea level - onlineclassesguru","og_description":"1- A helicopter of mass 12,000 kg hovers at sea level with a load of 16,113 kg. The horizontal blades above the helicopter cause a 18-m-diameter air mass to move downward at an average velocity proportional to the over-head blade rotational velocity (rpm). Determine the\u00a0power\u00a0input in kW required to hover with the load. 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