by Outcast_Searcher » Tue 11 Aug 2009, 12:19:43
$this->bbcode_second_pass_quote('Gerben', '
')Dewatering doesn't take a lot of energy (most of the water just condenses, allowing you to tap the water off). I've talked about pressurizing before. The lower the pipeline pressure the less energy it costs. It's only significant if you make CNG.
Well, perhaps. First, if the dewatering isn't done properly, there can be unpleasant consequences. For example, one recent time central KY had record low temperatures (-21 F in the 90's, as I recall), the main gas line feeding Ravenna KY, (50 miles Southeast of Lexington, where my girlfriend lived, so I got the story directly), FROZE SOLID due to the water vapor in the pipe. Kind of inconvenient for the folks that had to live in a shelter that night while the repair crew enjoyed the brisk night air.
If you don't do a good job dewatering, can it cause a real issue at typical CNG pressures? Remember, folks' cars need to operate extremely reliably under all kinds of adverse weather conditions.
I'm not taking a doomer tone here - just pointing out that this issue may not be completely trivial.