Advanced Energy Efficiency, Lecture 2: Industry - Rocky Mountain ...
Advanced Energy Efficiency, Lecture 2: Industry - Rocky Mountain ...
Advanced Energy Efficiency, Lecture 2: Industry - Rocky Mountain ...
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Pipe fittings: none are best<br />
◊ Equivalent-length / pipe-diameter loss<br />
coefficients:<br />
<br />
<br />
<br />
<br />
~2 for a pipe coupling or union<br />
~17 for a 45˚ elbow<br />
~75 for a 180˚ return bend<br />
Typically ~300 for a wide-open or ~475 for a half-open<br />
globe valve (!)<br />
◊ Pipe layout needs to be simple, even ugly,<br />
without “pretty” right angles<br />
◊ Avoid constrained entering/leaving conditions<br />
that kill pump efficiency: there’s generally<br />
space to do it right, and if there isn’t, make<br />
some more