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Re: [Shop-talk] diesel fuel question

To: <Shop-talk@autox.team.net>
Subject: Re: [Shop-talk] diesel fuel question
From: Al Fuller via Shop-talk <shop-talk@autox.team.net>
Date: Fri, 24 Apr 2020 19:59:23 -0400
Delivered-to: mharc@autox.team.net
Delivered-to: Shop-talk@autox.team.net
References: <OFF7446595.89F64735-ON85258554.00402A2E-85258554.0040A447@mail.megageek.com> <CAO8Q7CPgzoQnK9WGYLn4z+miWd-P7YE7frJnhMOW=h0N0UiCig@mail.gmail.com> <09ce01d61a44$deb43a60$9c1caf20$@gmail.com> <CAO8Q7CO=002A3i4SwzMVTBsQdaiFrxxVsTX9KMeBdUAYtq0XCA@mail.gmail.com>
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Hi Jeff:

=20

We do commissioning and validation. Lately it is mostly for =
FDA-regulated facilities [pharmaceutical, biotech, medical device, etc.] =
=E2=80=93 but also financial services and others.  And, Yup =E2=80=93 a =
boy CAN dream!! =F0=9F=98=8A

=20

It turns out that I am the =E2=80=98jinx=E2=80=99 when it comes to power =
failures:=20

*       Supplier in Las Vegas had a battery backup system. It turns out when =
the power failed they had never serviced the batteries=E2=80=A6
*       Client in Memphis had the wind storm and the transfer switch failed, =
no power to the building
*       Client in Minnesota lost electricity after a ~18 inch snow storm. Four =
(4) buildings on the campus each had individual natural-gas fired =
generators. One was less than 6 months old and HAD been tested as part =
of standing up the building. When I drove up in my Land Cruiser, the =
whole campus was dark! Although I had not personally been involved with =
validation of the building or generator, I was able to diagnose the =
campus-wide lack of power to a validation issue in about three minutes. =
I had then up and running within 10 minutes and headed back to my hotel, =
as the offices were closed.

=20

----------------

All the best,

=20

Al Fuller

=20

From: Shop-talk <shop-talk-bounces@autox.team.net> On Behalf Of Jeff =
Scarbrough via Shop-talk
Sent: Friday, April 24, 2020 11:21 AM
To: Shop-talk@autox.team.net
Subject: Re: [Shop-talk] diesel fuel question

=20

Al,

=20

You are correct - it is the engines that get exercised, not the =
generator, and that's an important distinction.  Do you do validation or =
commissioning, or both? =20

=20

Our generators  have been reliable so far in real emergencies, but live =
load testing with our current facility involves some challenges that =
have consequences we don't care to risk if we can help it. =20

Our new facility, currently under construction (coming online at the end =
of this year, pandemic notwithstanding), has two  2MW generators (3800 =
gallons each) with load bank for testing.  So we will exercise the =
generator along with the diesel engine.  We will probably include live =
load testing of the entire system including transfer switch, tie breaker =
for redundant power systems, and redundant power supply for one =
building, at least semi-annually.  As this place won't be a patchwork of =
50 years of continuous improvement with all that implies, I'm planning =
on the whole thing being seamless and trouble-free.

A boy can dream, right?

=20

On Fri, Apr 24, 2020 at 10:31 AM Al Fuller via Shop-talk =

Jeff [and all]:

=20

As regards the comment you made below that the generators get exercised =
30 minutes a week: Please keep in mind that its sounds like you meant to =
say the diesel engines get exercised [as opposed to the generators].=20

=20

The difference is the generator set also includes the transfer switch, =
wiring and other components. I had one client that fired up the diesel =
weekly, but when a wind storm blew down the power lines, the facility =
was down for a week while they tried to locate a new transfer switch. It =
turned out the building housed a lot more people and equipment than when =
the generator set was first specified and the switch set =
couldn=E2=80=99t support the load.  It was very frustrating to have a =
working diesel generator, but unable to power the building!

=20

As a validation person, our motto is if it needs to work, it needs to be =
tested ahead of time =E2=80=93 in the same way you would use it.

=20

----------------

All the best,

=20

Al Fuller

=20

From: Shop-talk <shop-talk-bounces@autox.team.net =
via Shop-talk
Sent: Friday, April 24, 2020 9:15 AM
Subject: Re: [Shop-talk] diesel fuel question

=20

=20

We have two 500kW generators at work.  Each has a 1400 gallon tank; we =
go through about 500-800 gallons per year.  I expect that, despite the =
fact that these generators are having their 21st birthday this year, =
there is still some portion of fuel in the tank that is 21 years old.  =
This bothers me a little bit, but it keeps working.  We did throw a jug =
of biocide in one year with the fresh fuel.

=20

Having said that, we have a service guy come in twice a year to check =
fluids and change filters, and they get exercised 30 minutes a week just =
to make sure they will run when we need them. =20

=20

Do like the others have said:  check filters, check a fuel sample from =
the tank, and let us know what you find.

=20

There exist people who do fuel polishing - they come to your large ship =
or tank farm and run an extra fuel cleaning and refreshing for your =
stored diesel fuel.  Might be a bit of overkill on the farm.

=20

Jeff Scarbrough

Corrosion Acres, Ga.

=20

On Fri, Apr 24, 2020 at 7:46 AM eric--- via Shop-talk =

Does anyone know of a way to tell if diesel fuel has gone bad?=20

Here is my situation.  I have a large diesel fuel tank for my tractors =
on my property (so I don't have to buy 'over the road' diesel.)  The =
fuel in there has been there a few years.=20

My newest tractor (a small 25hp subcompact) started acting funny.  At =
full throttle, it seems to sputter a little.=20

Could be a fuel problem, but I would love to test the diesel somehow. Or =
is there a way of looking at the filter on the tractor? Or another test =
to do?=20

Related follow up, if the fuel is bad, and I have about 50 gals in a 250 =
tank.  Can I just add fresh fuel to it, or do I need to drain out all =
the bad first?  What would be a good bad/good ratio to dilute the bad =
fuel?=20

Thanks!=20


"Be as beneficent as the sun or the sea, but if your rights as a =
rational being are trenched on, die on the first inch of your =
territory." Ralph Waldo Emerson=20
-Who is John Galt?_______________________________________________

Archive: http://www.team.net/pipermail/shop-talk =
http://autox.team.net/archive

http://autox.team.net/mailman/options/shop-talk/fishplate@gmail.com

_______________________________________________

Archive: http://www.team.net/pipermail/shop-talk =
http://autox.team.net/archive

http://autox.team.net/mailman/options/shop-talk/fishplate@gmail.com


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vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal>Hi =
Jeff:<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>We do commissioning and validation. Lately it is =
mostly for FDA-regulated facilities [pharmaceutical, biotech, medical =
device, etc.] =E2=80=93 but also financial services and others. =
=C2=A0And, Yup =E2=80=93 a boy CAN dream!! <span =
style=3D'font-family:"Segoe UI =
Emoji",sans-serif'>&#128522;</span><o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>It turns out =
that I am the =E2=80=98jinx=E2=80=99 when it comes to power failures: =
<o:p></o:p></p><ul style=3D'margin-top:0in' type=3Ddisc><li =
class=3DMsoListParagraph style=3D'margin-left:0in;mso-list:l0 level1 =
lfo1'>Supplier in Las Vegas had a battery backup system. It turns out =
when the power failed they had never serviced the =
batteries=E2=80=A6<o:p></o:p></li><li class=3DMsoListParagraph =
style=3D'margin-left:0in;mso-list:l0 level1 lfo1'>Client in Memphis had =
the wind storm and the transfer switch failed, no power to the =
building<o:p></o:p></li><li class=3DMsoListParagraph =
style=3D'margin-left:0in;mso-list:l0 level1 lfo1'>Client in Minnesota =
lost electricity after a ~18 inch snow storm. Four (4) buildings on the =
campus each had individual natural-gas fired generators. One was less =
than 6 months old and HAD been tested as part of standing up the =
building. When I drove up in my Land Cruiser, the whole campus was dark! =
Although I had not personally been involved with validation of the =
building or generator, I was able to diagnose the campus-wide lack of =
power to a validation issue in about three minutes. I had then up and =
running within 10 minutes and headed back to my hotel, as the offices =
were closed.<o:p></o:p></li></ul><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>----------------<o:p></o:p></p><p =
class=3DMsoNormal>All the best,<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Al =
Fuller<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><div =
style=3D'border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in'><p class=3DMsoNormal><b>From:</b> Shop-talk =
&lt;shop-talk-bounces@autox.team.net&gt; <b>On Behalf Of </b>Jeff =
Scarbrough via Shop-talk<br><b>Sent:</b> Friday, April 24, 2020 11:21 =
AM<br><b>To:</b> Shop-talk@autox.team.net<br><b>Subject:</b> Re: =
[Shop-talk] diesel fuel question<o:p></o:p></p></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><div><p =
class=3DMsoNormal>Al,<o:p></o:p></p><div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div><div><p =
class=3DMsoNormal>You are correct - it is the engines that get =
exercised, not the generator,&nbsp;and that's an =
important&nbsp;distinction.&nbsp; Do you do validation or commissioning, =
or both?&nbsp;&nbsp;<o:p></o:p></p></div><div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div><div><p =
class=3DMsoNormal>Our&nbsp;generators&nbsp; have been reliable so far in =
real emergencies, but live load testing with&nbsp;our current facility =
involves some challenges that have consequences we don't care to risk if =
we can help it.&nbsp;&nbsp;<br><br>Our new facility, =
currently&nbsp;under construction (coming online at the end of this =
year, pandemic notwithstanding), has two&nbsp; 2MW generators (3800 =
gallons each) with load bank for testing.&nbsp; So we will exercise the =
generator along with the diesel engine.&nbsp; We will probably include =
live load testing of the entire system including transfer switch, tie =
breaker for redundant power systems, and redundant power supply for one =
building, at least semi-annually.&nbsp; As this place won't be a =
patchwork of 50 years of continuous improvement&nbsp;with all that =
implies, I'm planning on the whole thing being seamless and =
trouble-free.<br><br>A boy can dream, =
right?<o:p></o:p></p></div></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><div><div><p class=3DMsoNormal>On =
Fri, Apr 24, 2020 at 10:31 AM Al Fuller via Shop-talk &lt;<a =
href=3D"mailto:shop-talk@autox.team.net";>shop-talk@autox.team.net</a>&gt;=
 wrote:<o:p></o:p></p></div><blockquote =
style=3D'border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in =
6.0pt;margin-left:4.8pt;margin-right:0in'><div><div><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Jeff [and =
all]:<o:p></o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>&nbsp;<o:p><=
/o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>As regards =
the comment you made below that the generators get exercised 30 minutes =
a week: Please keep in mind that its sounds like you meant to say the =
diesel engines get exercised [as opposed to the generators]. =
<o:p></o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>&nbsp;<o:p><=
/o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>The =
difference is the generator set also includes the transfer switch, =
wiring and other components. I had one client that fired up the diesel =
weekly, but when a wind storm blew down the power lines, the facility =
was down for a week while they tried to locate a new transfer switch. It =
turned out the building housed a lot more people and equipment than when =
the generator set was first specified and the switch set =
couldn=E2=80=99t support the load.&nbsp; It was very frustrating to have =
a working diesel generator, but unable to power the =
building!<o:p></o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>&nbsp;<o:p><=
/o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>As a =
validation person, our motto is if it needs to work, it needs to be =
tested ahead of time =E2=80=93 in the same way you would use =
it.<o:p></o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>&nbsp;<o:p><=
/o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>------------=
----<o:p></o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>All the =
best,<o:p></o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>&nbsp;<o:p><=
/o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Al =
Fuller<o:p></o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>&nbsp;<o:p><=
/o:p></p><div style=3D'border:none;border-top:solid #E1E1E1 =
1.0pt;padding:3.0pt 0in 0in 0in'><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b>From:</b>=
 Shop-talk &lt;<a href=3D"mailto:shop-talk-bounces@autox.team.net"; =
target=3D"_blank">shop-talk-bounces@autox.team.net</a>&gt; <b>On Behalf =
Of </b>Jeff Scarbrough via Shop-talk<br><b>Sent:</b> Friday, April 24, =
2020 9:15 AM<br><b>To:</b> <a href=3D"mailto:Shop-talk@autox.team.net"; =
target=3D"_blank">Shop-talk@autox.team.net</a><br><b>Subject:</b> Re: =
[Shop-talk] diesel fuel question<o:p></o:p></p></div><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>&nbsp;<o:p><=
/o:p></p><div><div><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>&nbsp;<o:p><=
/o:p></p></div><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>We have two =
500kW generators at work.&nbsp; Each has a 1400 gallon tank; we go =
through about 500-800 gallons per year.&nbsp; I expect that, despite the =
fact that these generators are having their&nbsp;21st birthday =
this&nbsp;year, there is still some portion of fuel in the tank that is =
21 years old.&nbsp; This bothers me a little bit, but it keeps =
working.&nbsp; We did throw a jug of biocide in one year with the fresh =
fuel.<o:p></o:p></p><div><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>&nbsp;<o:p><=
/o:p></p></div><div><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Having said =
that, we have a service guy come in twice a year to check fluids and =
change filters, and they get exercised 30 minutes a week just to make =
sure they will run when we need =
them.&nbsp;&nbsp;<o:p></o:p></p></div><div><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>&nbsp;<o:p><=
/o:p></p></div><div><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Do like the =
others&nbsp;have said:&nbsp; check filters, check a fuel sample from the =
tank, and let us know what you find.<o:p></o:p></p><div><div><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>&nbsp;<o:p><=
/o:p></p></div><div><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>There exist =
people who do fuel polishing - they come to your large ship or tank farm =
and run an extra fuel cleaning and refreshing for your stored diesel =
fuel.&nbsp; Might be a bit of overkill on the =
farm.<o:p></o:p></p></div><div><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>&nbsp;<o:p><=
/o:p></p></div><div><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Jeff =
Scarbrough<o:p></o:p></p></div><div><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Corrosion =
Acres, Ga.<o:p></o:p></p></div><div><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>&nbsp;<o:p><=
/o:p></p></div><div><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>On Fri, Apr =
24, 2020 at 7:46 AM eric--- via Shop-talk &lt;<a =
href=3D"mailto:shop-talk@autox.team.net"; =
target=3D"_blank">shop-talk@autox.team.net</a>&gt; =
wrote:<o:p></o:p></p></div><blockquote =
style=3D'border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in =
6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5=
.0pt'><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;margin-bottom:12.0pt'><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif'>Does anyone =
know of a way to tell if diesel fuel has gone bad?</span> <br><br><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif'>Here is my =
situation.&nbsp; I have a large diesel fuel tank for my tractors on my =
property (so I don't have to buy 'over the road' diesel.) &nbsp;The fuel =
in there has been there a few years.</span> <br><br><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif'>My newest =
tractor (a small 25hp subcompact) started acting funny.&nbsp; At full =
throttle, it seems to sputter a little.</span> <br><br><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif'>Could be a =
fuel problem, but I would love to test the diesel somehow. Or is there a =
way of looking at the filter on the tractor? Or another test to =
do?</span> <br><br><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif'>Related follow =
up, if the fuel is bad, and I have about 50 gals in a 250 tank.&nbsp; =
Can I just add fresh fuel to it, or do I need to drain out all the bad =
first?&nbsp; What would be a good bad/good ratio to dilute the bad =
fuel?</span> <br><br><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif'>Thanks!</span> =
<br><span =
style=3D'font-size:10.0pt;font-family:"Arial",sans-serif'><br><br>&quot;B=
e as beneficent as the sun or the sea, but if your rights as a rational =
being are trenched on, die on the first inch of your territory.&quot; =
Ralph Waldo Emerson <br>-Who is John =
Galt?</span>_______________________________________________<br><br><a =
href=3D"mailto:Shop-talk@autox.team.net"; =
target=3D"_blank">Shop-talk@autox.team.net</a><br>Donate: <a =
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te@gmail.com</a><o:p></o:p></p></blockquote></div></div></div></div></div=
><p class=3DMsoNormal =
style=3D'margin-bottom:12.0pt'>__________________________________________=
_____<br><br><a href=3D"mailto:Shop-talk@autox.team.net"; =
target=3D"_blank">Shop-talk@autox.team.net</a><br>Donate: <a =
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