Comments for ekwestrel corp http://ekwestrel.com independent engineering consulting services Wed, 22 Feb 2012 05:11:40 +0000 hourly 1 http://wordpress.org/?v=3.3.1 Comment on What is the Purpose of Minimum Flow? by ekwestrel http://ekwestrel.com/what-is-the-purpose-of-minimum-flow/what-is-the-purpose-of-minimum-flow#comment-141 ekwestrel Wed, 22 Feb 2012 05:11:40 +0000 http://ekwestrel.com/?p=392#comment-141 Ricky, The energy costs of using a valve will need to be compared with that of a Variable Speed Drive (inverter). An energy and cost evaluation of the pumping system, the pump, operational cycles of the process and the machinery, etc. will provide a good indication of which type of pump minimum flow control is better. There are benefits to VSD pump control for many, but not all, systems. Benefits such as reduced pump and valve wear and tear, reduced power demand and reduced noise may be more difficult to justify economically, but may help to sway management opinion in favor of approval. I hope this helps. Randal Ferman Ricky,
The energy costs of using a valve will need to be compared with that of a Variable Speed Drive (inverter). An energy and cost evaluation of the pumping system, the pump, operational cycles of the process and the machinery, etc. will provide a good indication of which type of pump minimum flow control is better. There are benefits to VSD pump control for many, but not all, systems. Benefits such as reduced pump and valve wear and tear, reduced power demand and reduced noise may be more difficult to justify economically, but may help to sway management opinion in favor of approval. I hope this helps.
Randal Ferman

]]> Comment on What is the Purpose of Minimum Flow? by ricky http://ekwestrel.com/what-is-the-purpose-of-minimum-flow/what-is-the-purpose-of-minimum-flow#comment-140 ricky Wed, 22 Feb 2012 04:09:04 +0000 http://ekwestrel.com/?p=392#comment-140 So, When we decide using minimum flow valve or using motor inverter? thks So, When we decide using minimum flow valve or using motor inverter? thks

]]> Comment on What is the Purpose of Minimum Flow? by Granger Smith http://ekwestrel.com/what-is-the-purpose-of-minimum-flow/what-is-the-purpose-of-minimum-flow#comment-137 Granger Smith Sat, 18 Feb 2012 03:20:34 +0000 http://ekwestrel.com/?p=392#comment-137 Well said Randy. Well said Randy.

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