Free Response to Motion - District Court of Delaware - Delaware

Case 1:04-cv-01282-JJF Document 81-5 Filed O3/13/2006 Page1 of 4

Case 1 :04-cv-01282-JJF Document 81-5 Filed 03/13/2006 Page 2 of 4
From: Emcst Pagaduan
Sent: 'Ihursday. October 9. 2003 8:34 .#\l\¤l
T0: Abigail Reyes
Subject: FW; ESP CDS air slides
Attach: Ash loadingsxls

Aby.
Print att. And file
Ul & U2 precip
Arr slides ash loading
EP
·—--- Original Message ———-—
From: Paul Stinson
Sent; Thursday, October 09, 20t 13 7:56 AM
Tot Puerto Rico Leaders
Cc: Eduardo Santiago
Subject: F W : ESP CDS air slides
I thought some olyou rtnght be interested in this. Eduardo, rnuchos gracias For collecting the data.
Paul
———-— (Qiriginal Message —-—-—
From: Paul Stinson
Sent: Thursdayo October 09. 2ot_>3 3;-47 AM
To: IkHl”l.l]OgI1Bf6l[Qil[)O‘v\'B1.HlSlO11l com'
Cc: thomas, l.war‘dell@ power.alstom,com; williamnr .jarvis@power, alstorn . com
Subject: RE; ESP CDS air slides
Heres the ash loadings I calculated from the measurements the control room operator made last night. Please see the attached
spreadsheet.
The loading is about 9-12 tph for the 420s and about 2-3 tph for the 430s. Did not get any data for 440 and 150 valves.
Presumably because it took too long to till them.
With some degree of blinding of the membrane from ash contamination in the LP blower supply, vve surely are struggling
with the capacity ofthe 150 section ot` the airslide.
My proposal is to replace the section of airslrde under the 420 and -130 valves with a larger section, perhaps a 200 or larger
slide. I have contacted Claudius Peters about a proposal.
What is your input?
Can you ask the Alstorrr ESP experts what they would expect to happen if we are in fact overloading the 1 50 section ofthe
slides'? Would they expect there to be opacity implications?
I now have sigrriticarit time looking at the delta pressure measurements. On every slide, ifyou shut down all valves except
the —“lt)0s and —t10s. the pressure drop becomes fairly steady and low, about 1 inch of water. All higher delta pressure and
erratic pressure drop arises tiorn operation ol` the 420 through 450 valves. The B slide on Unit I is capable ot` operating all
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Case 1 :04-cv-01282-JJF Document 81-5 Filed 03/13/2006 Page 3 of 4
valves simultaneously without too much problem. ,-\ ll other slides do not appear to be able to run all tour valves tie. #120-
-·?l$l_?» without some opacity spiking
The operators main control on opacity is the s arting euid stopping ofthe 420--"l$U valves trying to avoid opacity spikes vvlnle
keeping the high levels down in all hoppers.
We replaced all ·‘l3tit valves on unit l \\/llll new vali. es ori Monday. The jury is still out, but I do not note any real
improvement in opacity for Unit l I assume however. that there must be some iinprovem ent.
I saw a real live blow back on unit l MOC airlock valve. We found it because the delta pressure on thatslide was spiking
negative The top tlapper was stuck open Interestingly, there was no opacity spike. Perhaps the hopper was empty.
Paul
---—— t`¤riginal l\/lessage ———-—
From; [email protected] [nimlto: lcarl.liognefzjffvpower,alst_omtepm]
Sent; Weclnesday_ October D8, 2003 12:37 PM
To: Paul Stinson
Cci thomas l [email protected], williamm [email protected]
Subject; RE; ESP CDS air slides
Paul
Comments to your temperature measurement lor the air slides at Unit l ESP.
In general the temperatures look very low.
Temperatures below dew point temp is not good for the process.
Temperatures below l 20`_‘F will increase risk for corrosion and make the
"high chloride" ash VERY sticky and dil`l`icult to tluidize.
Are the heaters for the tluid air working'? The temperature on the fluid
air is supposed to be l7l'1"`F
Are the inspection doors on the air slide leaking, so ambient air is
cooling down the ash?
Are all parts of the ash system insulated? I savr that some areas around
the double damp valves and some other sections were missing insulation
whenl was on site 'l`h1s insulation need to be re-installed to reduce
cooling ofthe ash.
Cooling down the ash will make it very sticky with high chloride content
and also increase the risk for clogging the fluid cloth.
Have you been able to check the fluid air flow to different sections of the
air slides"
Best regardsf Karl
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Case 1 :04-cv-01282-JJF Document 81-5 Filed O3/13/2006 Page 4 of 4
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