Larry Sorrels/RTP/USEPA/US 

05/01/2008 09:54 AM

	

To

Kathy Kaufman/RTP/USEPA/US@EPA

cc

Subject

Fw: Question for you









Kathy,  below is the email that is the reference 8 and 9 for chapter 6
that needs to go into the docket.   This email is the sole reference; I
just referred to it twice in the PM2.5 RIA.  Thanks.  

Larry Sorrels

Economist

US EPA/OAQPS/HEID/ABCG

C439-02

RTP, NC 27711

(919) 541-5041

fax:  (919) 541-0839

----- Forwarded by Larry Sorrels/RTP/USEPA/US on 05/01/2008 09:52 AM
-----

Sikander Khan/DC/USEPA/US

03/16/2006 06:55 PM

	

To

Larry Sorrels/RTP/USEPA/US@EPA

cc

Tim Smith/RTP/USEPA/US@EPA, Kevin Culligan/DC/USEPA/US, Mikhail
Adamantiades/DC/USEPA/US

Subject

Re: Question for you









Larry/Tim,

The attached file lists the ballpark cost estimating factors for three
ESP modification options: 1) adding an agglomerator, 2) adding
equivalent of one field surface area, and 3) adding equivalent of two
field surface area.

Please note that these costs cover only EGUs, i.e., not small industrial
units.  The costs are very preliminary and must be eventually confirmed
via detailed estimates.  The following cost factors should be used for
converting these costs to $/ton of PM2.5 removed (I explained this to
Larry today via a phone call).:

				Capacity factor:			85%

				Capital recovery factor:		12%

				Amount of PM2.5 removed:	Should be estimated based on the ESP
efficiency increases I have provided earlier

Sikander Khan

US EPA

Telephone:  202-343-9781

Fax:  202-343-2356

Email Address:  khan.sikander@epa.gov

Larry Sorrels/RTP/USEPA/US 

03/16/2006 09:21 AM

	

To

Sikander Khan/DC/USEPA/US@EPA

cc

Tim Smith/RTP/USEPA/US@EPA

Subject

Question for you









Sikander, will you be able to provide some costs for the ESP upgrades
(addtion of plates in series) you recommend we consider as a PM control
measure?  We have the control efficiency data, but not the cost data.  
Also, will you be able to send us today your estimate of cost for the
Indigo Agglomerator that includes the energy costs related to pressure
drop?   We are interested in this information, and we need it this week
if at all possible.   Thanks. 

Larry Sorrels

Economist

US EPA/OAQPS/HEID/ABCG

C504-02

RTP, NC 27711

(919) 541-5041

fax:  (919) 541-5489

