A aviation & planes forum. AviationBanter

If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.

Go Back   Home » AviationBanter forum » rec.aviation newsgroups » Home Built
Site Map Home Register Authors List Search Today's Posts Mark Forums Read Web Partners

Gasohol



 
 
Thread Tools Display Modes
  #1  
Old June 29th 07, 05:33 AM posted to rec.aviation.homebuilt,rec.aviation.owning,rec.aviation.piloting
David Lesher
external usenet poster
 
Posts: 224
Default Gasohol

Jose writes:


Is there no diffusion at the boundaries?



There is some. How much is complex. It depends on what the two products
are, the rate, and a big issue, is the line kept tight?

By tight I mean, was it running non-stop at the same backpressure the
whole time? If the line went up & down in rate because they added pumps
or swung to a different tank, then there is a longer [time] or broader
[linear feet of product] mix region.

Some lines actually used spheres between, but they bring their own
problems...

For a real mess; picture a midline booster pump, only used for some
products. You must keep track of what product is now in the booster
station line section before you restart. No fair dumping Diesel or Kero
into the gas going by.... but the opposite is OK. [Too much gas in the
distillate is Not Allowed, but a bbl or 3 in a 100,000 bbl tank is no big
deal.]


--
A host is a host from coast to
& no one will talk to a host that's close........[v].(301) 56-LINUX
Unless the host (that isn't close).........................pob 1433
is busy, hung or dead....................................20915-1433
  #2  
Old June 29th 07, 10:19 PM posted to rec.aviation.homebuilt,rec.aviation.owning,rec.aviation.piloting
Mike Isaksen
external usenet poster
 
Posts: 242
Default Gasohol


"David Lesher" wrote
Some lines actually used spheres between, but they bring their own
problems...


A little further OT,... I've watched a lot of heavy #6 (needs to be heated
to pump) unloaded at the offshore platform. When the tanker is empty, we pig
the pipe and backfill with #2. The methods seem crude to the observer, but
the results are exact enough even for the accountants.


  #3  
Old June 29th 07, 10:42 PM posted to rec.aviation.homebuilt,rec.aviation.owning,rec.aviation.piloting
Morgans[_2_]
external usenet poster
 
Posts: 3,924
Default Gasohol


"Mike Isaksen" wrote

A little further OT,... I've watched a lot of heavy #6 (needs to be heated
to pump) unloaded at the offshore platform. When the tanker is empty, we
pig the pipe and backfill with #2. The methods seem crude to the observer,
but the results are exact enough even for the accountants.


Care to explain a little more, for the unfamiliar among us?

Pig the pipe?

Backfill with #2? What is that?

Why is it possible to be considered as crude, and why is it accurate?
--
Jim in NC


  #4  
Old June 28th 07, 08:04 PM posted to rec.aviation.homebuilt,rec.aviation.owning,rec.aviation.piloting
Tri-Pacer
external usenet poster
 
Posts: 120
Default Gasohol


He may cut early. middle or late; it depends on the two products. The
schedulers try to make adjacent 'tenders' friendly.


Interesting post. Thanks Dave

Paul
N1431A
KPLU


 




Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Gasohol Blueskies Piloting 240 July 6th 07 12:42 AM
Gasohol Blueskies Owning 233 June 30th 07 03:50 AM
How scary is gasohol? Charles Talleyrand Owning 27 March 1st 04 11:39 AM


All times are GMT +1. The time now is 08:44 PM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Copyright ©2004-2025 AviationBanter.
The comments are property of their posters.