Message-ID: <22395968.1075851907172.JavaMail.evans@thyme> Date: Mon, 29 Oct 2001 09:55:00 -0800 (PST) From: arnold.eisenstein@enron.com To: larry.campbell@enron.com Subject: FW: ENRON-TRANSWESTERN/PARTICULATES Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-From: Arnold L Eisenstein X-To: Larry Campbell X-cc: X-bcc: X-Folder: \Larry_Campbell_Nov2001_1\Notes Folders\Discussion threads X-Origin: CAMPBELL-L X-FileName: lcampbe.nsf resend in case the first one didn't come on friday -----Original Message----- From: jose.dumenigo@ps.ge.com@ENRON Sent: Friday, October 26, 2001 4:12 PM To: Eisenstein, Arnold L.; Rance, Byron Cc: vadim.nisman@ps.ge.com; Davide.Iannucci@np.ge.com; lucamaria.rossi@np.ge.com Subject: FW: ENRON-TRANSWESTERN/PARTICULATES Byron, Below is the letter I committed to provide Arnold this afternoon. I see that Vadim beat me to it by sending you an earlier email. As a general commentary, I would however, like to make the following clarifications on the subject which ETS may find useful. Particulate matter in the gas tubine exhaust comes from a variety of sources and may include smoke, ash, corrosion and erosion products, condensable hydrocarbons, inlet air particulates and particulates from the fuel and injected water or steam when applicable. In addition, SO3 in the exhaust is generally trapped on a wet collection medium as H2SO4 and may appear as particulates due to the measurement procedure. Gas turbines are very clean burning and are not, in general, sources of significant quantities of particulate emissions when burning good quality fuels. With distillate fuel containing less than 0.5% by weight, sulfur, total particulates at high power are expected to be less than 0.6 lbs. per 1000 lb. fuel as measured by EPA Method 5. Please note that the method used for measuring particulate matter can have a significant impact on the particulate level determined. For estimating purposes, all particulates may be considered to be in the size range less than 10 micrometers. With pipeline quality natural gas, there is virtually no smoke and the fuel contains no sulfur or ash. As a result, total engine generated particulate emissions are generally undetectable by EPA Method 5. Due to other particulate sources and the sensitivity of the measurement method, total particulates with pipeline quality natural gas for the LM2500 are estimated to be less than 3 pounds per hour assuming cleanliness levels for the inlet air, fuel, and water/steam injection in accordance with GE requirements. Regards, Jos,. <> <> - Transwestern particulate emissions.pdf - Transwestern particulate emissions.pdf