Water Hammer Upstream Pipe Length
Water Hammer Upstream Pipe Length Formula |
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\(\large{ l = \frac{ \left( p_{inc} \;-\; p_i \; \right) \; t }{ 0.070 \; v } }\) (Water Hammer Upstream Pipe Length) \(\large{ p_{inc} = \frac{ 0.070 \; v \; l }{ t } \;+\; p_i }\) \(\large{ p_i = p_{inc} - \frac{ 0.070 \; v }{ t } \; l }\) \(\large{ t = \frac{ 0.070 \; v \; l }{ p_{inc} \;-\; p_i } }\) \(\large{ v = \frac{ t }{ 0.070 } \; \frac{ 1 }{ l \; \left( p_{inc} \;-\; p_i \; \right) } }\) |
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Symbol | English | Metric |
\(\large{ l }\) = upstream pipe length | \(\large{ft}\) | \(\large{m}\) |
\(\large{ p_{inc} }\) = pressure increase | \(\large{\frac{lbf}{in^2}}\) | \(\large{Pa}\) |
\(\large{ p_i }\) = inlet pressure | \(\large{\frac{lbf}{in^2}}\) | \(\large{Pa}\) |
\(\large{ t }\) = valve closing time | \(\large{sec}\) | \(\large{s}\) |
\(\large{ v }\) = flow velocity | \(\large{\frac{ft}{sec}}\) | \(\large{\frac{m}{s}}\) |
Tags: Water Hammer