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Appendix B LETTER AND QUESTIONNAIRE 99
l00 December 8, l980 Dr. Laurence S. Caretto's Invitation Letter sent to Automotive Heavy-Duty Manufacturers with NOX Membership List & Questionnaire Dear The National Research Council of the National Academy of Sciences has formed a committee to investigate the technological feasibility of industry meeting the l985 Nitrogen Oxides Standard for heavy duty vehicles (both gasoline and diesel). This committee, whose membership is shown in Attach- ment A, will meet in Chicago on Thursday, January 8, l98l. The specific purpose of this meeting is to discuss industry's current and planned activities for developing heavyâduty engine systems with low nitrogen oxides emissions. We invite you to make a presentation on behalf of Mercedes-Benz of North America, Inc. The committee is working on a compressed schedule, which requires the completion of its final report by the middle of April. Our deliberations will directly impact the Environmental Protection Agency's adoption in June l98l of a heavy-duty vehicle nitrogen oxides emission standard for l985. We believe information gathered at the January 8th meeting will constitute a significant part of our study. This meeting represents the committee's initial contact with the specific concerns of the heavy duty engine manu- facturers and suppliers regarding control of NOX emissions. We are planning future contacts with the various concerned organizations and we would like to make site visits to selected manufacturers. Thus, the January 8th meeting will provide you with an opportunity to discuss your company's engine/ control technology systems development activities with the entire committee. The specific questions the committee would like you to answer for the January 8th meeting are shown in Attachment B. Unfortunately, we will have a very limited time to hear your oral presentation. Therefore, we would appreciate receiving, prior to the meeting, written responses to our questions and supporting documentation wherever possible. If you request, all materials will be held in strictest confidentiality. We request you send to the meeting members of your engineering staff, who will be able to answer the committee's technical questions. The meeting schedule will be arranged so that only one company at a time will be present and give information to the committee. We hope you will be as candid as possible with the committee, so we may fully evaluate your company's potential for complying with heavy duty NOX emissions standard over both the short (l-5 years) and the long terms.
10l Dr. Laurence S. Caretto's Invitation Letter December 8, l980 Page Two The meeting will be in the O'Hare Hilton Hotel at Chicago's O'Hare Airport. Questions on scheduling arrangements should be addressed to Dr. Dennis F. Miller or his secretary, Vivian Scott (202/389-6974). A block of rooms has been set aside for those attendees requiring overnight accommoda- tions. Therefore, if you need such accommodations, please telephone Ms. Scott. We will contact you to confirm your attendance and to give you a specific time for your presentation. We will also need to know whether you require audio or visual equipment for your presentation. I am looking forward to seeing you at this meeting. Sincerely, Laurence S. Caretto Chairman Motor Vehicle Nitrogen Oxide Standard Committee LSC/vs Attachments cc: Dr. D. F. Miller/NAS
l02 Attachment B - Questionnaire HEAVY-DUTY NITROGEN OXIDES STUDY Please provide answers to the following questions with as much detail as possible. l. Describe your current line of heavy-duty engines (gasoline and diesel). Give the number of units sold and the emissions characteristics of each line. 2. Describe the engine/control-system packages that you have under develop- ment for possible sales in both the short (l-5 years) or long (beyond 5 years) terms. For each system, give specific engine and/or vehicle test data, and the tradeoffs for each on the following items. (Please note the test cycle used): (a) Gaseous emissions of regulated pollutants, e.g., hydrocarbons, carbon monoxide and nitrogen oxides; (b) Particulate emissions; (c) Emissions of unregulated pollutants, e.g., aldehydes, and odor; (d) Fuel economy and fuel economy penalty, if any, due to emission control; (e) Engine power output and any reduced output caused by emission control design features; (f) Other engine performance characteristics you consider significant, e.g., driveability, reliability, maintenance requirements, etc.; (g) In-use performance and deterioration of emission controls; (h) Costs attributed to emissions control features; this includes initial capital costs, changes in operating and maintenance costs, and fuel costs; (i) Manufacturing difficulties, if any, and lead-time requirements for production of the control system; and (j) Current development status and most likely and earliest possible introduction dates. 3. Describe work in progress, if any, on alternatives of engines such as gas turbines, adiabatic diesel, etc. What are emission and control problems with such engines?
l03 Attachment B 4. Do you have any data concerning the effect of fuel properties on emissions? Are you testing alternative fuels, such as methanol, in your engines? 5. What engine designs do you plan to market over the next" ten years? What are your estimated production figures for each type? 6. Do you have any information on the relative contribution of heavy-duty engines to total mobile source emissions? 7. List data on performance of specific after treatment devices you are considering which can be analyzed separate from the engine system. 8. What comments do you have on the test procedures for heavy-duty engines (gasoline and diesel) and the standards that can be achieved for heavy- duty engines? Thank you for your help in providing answers to these questions.