{"id":17832,"date":"2018-05-08T17:14:57","date_gmt":"2018-05-08T17:14:57","guid":{"rendered":"http:\/\/sitepourvtc.com\/?page_id=17832"},"modified":"2022-11-16T12:31:33","modified_gmt":"2022-11-16T12:31:33","slug":"pressure-loss-coefficient-plc","status":"publish","type":"page","link":"https:\/\/sitepourvtc.com\/nuclear-engineering\/fluid-dynamics\/bernoullis-equation-bernoullis-principle\/head-loss\/pressure-loss-coefficient-plc\/","title":{"rendered":"Pressure Loss Coefficient – PLC"},"content":{"rendered":"
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Minor Head Loss – Local Losses<\/h2>\n

Any piping system contains different technological elements in the industry, such as bends, fittings, valves, or heated channels<\/strong>. These additional components add to the overall head loss<\/strong> of the system. Such losses are generally termed minor losses<\/strong>, although they often account for a major portion of the head loss<\/a>. For relatively short pipe systems, with a relatively large number of bends and fittings, minor losses can easily exceed major losses<\/a><\/strong> (especially with a partially closed valve that can cause a greater pressure loss than a long pipe when a valve is closed or nearly closed, the minor loss is infinite).<\/p>\n

The minor losses are commonly measured experimentally. The data, especially for valves, are somewhat dependent upon the particular manufacturer\u2019s design.<\/p>\n

Like pipe friction, the minor losses are roughly proportional to the square of the flow rate,<\/strong> and therefore they can be easily integrated into the Darcy-Weisbach equation<\/a><\/strong>. K<\/strong> is the sum of all of the loss coefficients in the length of pipe, each contributing to the overall head loss.\"minor<\/p>\n

There are several methods<\/strong> how to calculate head loss from fittings, bends, and elbows. In the following section, these methods are summarized from the simplest to the most sophisticated.

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Pressure Loss Coefficient – PLC<\/h2>\n<\/p>

Sometimes, engineers use the pressure loss coefficient<\/strong>, PLC<\/strong>. It is noted K or \u03be \u00a0(pronounced \u201cxi\u201d). This coefficient characterizes pressure loss of a certain hydraulic system or a part of a hydraulic system. It can be easily measured in hydraulic loops. The pressure loss coefficient can be defined or measured for both straight pipes and especially for local (minor) losses<\/strong>.<\/p>\n

\"PLC<\/a><\/p><\/div><\/div>

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Summary:<\/h2>\n