{"id":117,"date":"2021-03-06T23:41:46","date_gmt":"2021-03-06T23:41:46","guid":{"rendered":"http:\/\/lubean.com\/cvtia\/?page_id=117"},"modified":"2024-01-25T21:57:14","modified_gmt":"2024-01-25T21:57:14","slug":"pipe-and-flow-data","status":"publish","type":"page","link":"https:\/\/lubean.com\/cvtia\/pipe-and-flow-data\/","title":{"rendered":"Pipe and flow Data"},"content":{"rendered":"

CVTIA System Pipe and Flow Data<\/h2>\n

Data Items for the CVTIA Irrigation System <\/strong>(Last updated 9\/28\/20 by Hank LuBean)<\/strong><\/h4>\n
Pipe size and pipe length from head gate:\u00a0\u00a0<\/strong><\/h5>\n

From canal to Headgate approx. 16\u2019 of 4\u201d pipe; from Headgate 1650\u2019, 5\u201d PVC across golf course, under Baker in plastic conduit, \u00a0to 85\u2019 West of centerline of Ashland along south side of 17th; then 180\u2019, 4\u201d PVC to Aurora laterals; then 135\u2019, 3\u201d PVC from Aurora laterals to Aurora\/Anne laterals; then 250\u2019, 3\u201d PVC from Aurora\/Anne laterals to Anne\/Sunset laterals along the North side of 17th; then 135\u2019, 2\u201d or 2.5\u201d PVC from the Anne\/Sunset laterals along the North side of 17th to the drainage culvert on the East side of Sunset Highway by the stop sign. <\/strong><\/p>\n

[<\/strong>Note: the historical file diagrams currently available indicate 2.5\u201d PVC from Aurora\/Anne laterals to Anne\/Sunset laterals but due to repair of the main line in 2014 (Hank dug into it while putting in his geothermal system) and he put in a 3\u201d repair collar 15\u2019 East of Anne or about 10\u2019 East of the new main valve installed in 200x on the East side of Anne. It needs to be verified whether there is 3\u201d or 2.5\u201d main line PVC East of the Anne\/Sunset laterals up to shut-off valve on the East side of Anne. Also, the original Aurora lateral were to be 2.5\u201d to start (when the lateral path was above the East side of the Aurora lots vs. along Aurora Ave.) but the other laterals down stream of Aurora are 3\u201d to start with. The 2.5\u201d value for Aurora laterals needs to be verified when it is dug up in the future to repair or replace valves or repair lines.]<\/strong><\/p>\n

Distance (pipe length) from head gate to:<\/strong><\/h5>\n

Ashland \u2013 1570 ft; Aurora \u2013 1825 ft; between Aurora & Anne \u2013 1960 ft;<\/p>\n

between Anne & Sunset \u2013 2213 ft; Sunset Hwy \u2013 2347 ft<\/p>\n

Vertical distance (Static Head) from head gate to:<\/strong><\/h5>\n

Ashland \u2013 82 ft; Aurora laterals \u2013 114 ft; Aurora\/Anne laterals \u2013 131 ft; Anne\/Sunset laterals \u2013 157 ft;<\/p>\n

Static Water Pressure at no flow conditions (based on Head \/ 2.31) from head gate to:<\/strong><\/h5>\n

Ashland \u2013 35.5 psi; Aurora laterals \u2013 49.4 psi; Aurora\/Anne laterals \u2013 56.7 psi; Anne\/Sunset laterals \u2013 68 psi;<\/p>\n

Water Pressure at 100 gpm flow conditions (<\/strong>based Hazen-Williams pipe losses) from head gate to:<\/strong><\/h5>\n

Ashland \u2013 34.1 psi;<\/p>\n

Aurora laterals \u2013 47.5 psi;<\/p>\n

Aurora\/Anne laterals \u2013 53.4 psi;<\/p>\n

Anne\/Sunset laterals \u2013 62.1 psi;\u00a0<\/strong><\/p>\n

Pipe Flow Theoretical Capacity: in gpm (Hazen-Williams Formula, pipe limit \u2013 not orifice):<\/strong><\/h6>\n

\"\"<\/p>\n

hf = 0.002083*L*(100\/C)1.85<\/sup>\u00a0* (gpm1.85<\/sup>\u00a0\/d4.8655<\/sup>)<\/strong><\/p>\n

hf\/L = a\/b = .002083*(100\/C)1.85<\/sup>\u00a0* (gpm1.85<\/sup>\u00a0\/d4.8655<\/sup>)<\/strong><\/p>\n

d = Pipe Dia. in inches, gpm = gal\/min<\/p>\n

C = Roughness coef. = 150 for pvc<\/p>\n

Pipe flow maximum gravity flow capacity or capability from canal and head gate to\/at:<\/strong><\/p>\n

Canal to Headgate (4\u201d x 16\u2019, 18\u201d head) \u2013 420 gpm;<\/p>\n

Ashland (5\u201d) \u2013 591 gpm; Aurora (4\u201d) \u2013 362 gpm;<\/p>\n

between Aurora & Anne (3\u201d) \u2013 163 gpm;<\/p>\n

between Anne & Sunset (3\u201d) \u2013 153 gpm;<\/p>\n

\u00a0<\/strong><\/p>\n

Orifice Flow Rate at Head Gate based on submerged orifice formula: (Orifice limit)<\/strong><\/p>\n

\u00a0<\/strong><\/p>\n

Q = .61 * A * (64.4[H-h]).5<\/sup>,<\/strong><\/p>\n

where Q = flow in cfs<\/strong>, A = orifice area in ft2<\/sup>,<\/strong><\/p>\n

Height Change (H \u2013 h)<\/p>\n

= head diff before and after orifice in ft<\/strong>.<\/p>\n

(conversion:\u00a0\u00a0 gpm = cfs\u00a0 x 448.83,\u00a0\u00a0\u00a0 \u00a0in2<\/sup> =\u00a0 ft2<\/sup> x 144)<\/p>\n

\u00a0Current CVTIA Orifice limit:<\/strong><\/p>\n

CVTIA Orifice Area – A, is 6.62 in<\/strong>2<\/sup><\/strong>, 2\u201d x 3.31\u201d (at 14.07 shares x 5.5 gpm per share):<\/strong><\/p>\n

Q = 0 gpm and A = 6.62 in2<\/sup> for H-h = 0 in]<\/strong><\/p>\n

Q = 41 gpm and A = 6.62 in2<\/sup> for H-h = 2 in\u00a0\u00a0 <\/strong><\/p>\n

Q = 77 gpm and A = 6.62 in2<\/sup> for H-h = 7 in\u00a0\u00a0 (WRD uses 5 inches level above orifice as a rule of thumb)<\/strong><\/p>\n

Q = 117 gpm and A = 6.62 in2<\/sup> for H-h = 16 in<\/strong><\/p>\n

Q = 143 gpm and A = 6.62 in2<\/sup> for H-h = 24 in <\/strong><\/p>\n

(The physical limit of head (H-h) in our 60\u201d head gate box is about 36\u201d. At zero flow the water level is the same as the canal and is down about 12\u201d from the top leaving 48\u201d of water in the chamber. The chamber outlet is right at the bottom and is 5\u201d so that leaves 43\u201d of water above the outlet. Air starts to be sucked into the outlet when the water level gets to about 6\u201d to 7\u201d above to outlet; that leaves about 36\u201d of head to be utilized before significant air sucking. \u00a0\u00a0\u00a0The formula doesn\u2019t hold, or is not as accurate when the head gets more than 24\u201d since, at more than 24\u201d, the orifice is no longer submerged and the orifice flow would be a bit more than what is calculated because the flow from the orifice would not be as restricted as it is when submerged. The head gate outlet sits at the bottom of the head gate box and starts to suck air at somewhere around H-h of about 38\u201d or so at which point head losses greatly increase and consequently the pressure downstream drops off considerably.)<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

CVTIA System Pipe and Flow Data Data Items for the CVTIA Irrigation System (Last updated 9\/28\/20 by Hank LuBean) Pipe size and pipe length from head gate:\u00a0\u00a0 From canal to Headgate approx. 16\u2019 of 4\u201d pipe; from Headgate 1650\u2019, 5\u201d PVC across golf course, under Baker in plastic conduit, \u00a0to 85\u2019 West of centerline of…<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_uag_custom_page_level_css":"","_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"footnotes":""},"class_list":["post-117","page","type-page","status-publish","hentry"],"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false,"mailpoet_newsletter_max":false},"uagb_author_info":{"display_name":"admin","author_link":"https:\/\/lubean.com\/cvtia\/author\/admin\/"},"uagb_comment_info":0,"uagb_excerpt":"CVTIA System Pipe and Flow Data Data Items for the CVTIA Irrigation System (Last updated 9\/28\/20 by Hank LuBean) Pipe size and pipe length from head gate:\u00a0\u00a0 From canal to Headgate approx. 16\u2019 of 4\u201d pipe; from Headgate 1650\u2019, 5\u201d PVC across golf course, under Baker in plastic conduit, \u00a0to 85\u2019 West of centerline of...","_links":{"self":[{"href":"https:\/\/lubean.com\/cvtia\/wp-json\/wp\/v2\/pages\/117","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lubean.com\/cvtia\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/lubean.com\/cvtia\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/lubean.com\/cvtia\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lubean.com\/cvtia\/wp-json\/wp\/v2\/comments?post=117"}],"version-history":[{"count":10,"href":"https:\/\/lubean.com\/cvtia\/wp-json\/wp\/v2\/pages\/117\/revisions"}],"predecessor-version":[{"id":714,"href":"https:\/\/lubean.com\/cvtia\/wp-json\/wp\/v2\/pages\/117\/revisions\/714"}],"wp:attachment":[{"href":"https:\/\/lubean.com\/cvtia\/wp-json\/wp\/v2\/media?parent=117"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}