Publications

Safety Evaluation of the FuelMaker Home Refueling Concept: Final Report

2/1/2005

This report provides a safety evaluation of the FuelMaker compressed natural gas (CNG) home refueling appliance.

Authors: Waterland, L.R.; Powers, C.; Stickles, P.

Franklin County Sanitary Landfill - Landfill Gas (LFG) to Liquefied Natural Gas (LNG) - Project

1/1/2005

This report examines the Franklin County, Ohio project to convert landfill gas (LFG) to liquefied natural gas (LNG) for use by alternative fuel vehicles in Central Ohio Clean Fuels Coalition (COCFC) fleets.

Natural Gas Vehicle (NGV) Best Practice Case Study: The Saunders Hotel Group of Boston - Driving Their Guests Towards a Safer Future

1/1/2005

The Saunders Hotel Group has been at the forefront of environmental advances in the hospitality industry for over fifteen years. The Boston-based family business, which owns and operates The Lenox and Copley Square Hotels as well as the Comfort Inn & Suites Boston/Airport, has instituted more than 90 innovative, eco-friendly programs company wide. Their pioneering efforts have demonstrated for hotels worldwide how environmental measures can build customer loyalty and employee productivity while saving hundreds of thousands of dollars.

Development of the High-Pressure Direct-Injected, Ultra Low-NO_x Natural Gas Engine: Final Report

5/1/2004

This project targeted development of a high-efficiency, low-emission natural gas engine for heavy-duty trucks. Specifically, it targeted the demonstration of a Cummins ISX engine using HPDI natural gas fueling and exhaust gas recirculation (EGR) meeting the following specifications:

• Peak torque of 1,650 ft-lb (2,236 N-m)
• Rated power of 450 hp (335 kW)
• Peak thermal efficiency of 40% with typical diesel part-load efficiency
• NO_x emissions of 0.5 g/bhp-hr
• PM emissions of 0.1 g/bhp-hr
• Substitution of diesel with natural gas greater than 90% over the certification cycle

Testing and modeling of an otherwise unmodified Cummins ISX engine with EGR and HPDI fueling indicated that the program goals could not be met with the standard production hardware. Therefore, a turbocharger using a smaller trim compressor and a second EGR cooler were fitted to the engine along with an oxidation catalyst.

Authors: Duggal, V.K.; Pike-Lyford, E.J.; Wright, J.F.; Dunn, M.; Goudie, D.; Munshi, S.

1990 Clean Air Act Amendment Summary

2/24/2004

Clean Air Act of 1990 with amendments through January 2004

City of Los Angeles Bureau of Sanitation LNG Heavy-Duty Trucks

2/1/2004

This fact sheet describes an Advanced Vehicle Testing Activity (AVTA) field study for Dual-Fuel? liquefied natural gas (LNG) refuse trucks used by the City of Los Angeles Bureau of Sanitation. The study showed that the trucks with Dual-Fuel engines were best suited to meet the operational requirements of refuse collection. Specifically, the Dual-Fuel trucks had adequate horsepower and torque and could be operated safely over all terrains covered by the Bureau's refuse collection service.

Demonstration of a Low-NO_x Heavy-Duty Natural Gas Engine

2/1/2004

This project demonstrated a heavy-duty natural gas engine emission reduction strategy resulting in oxides of nitrogen (NOx) emissions of 0.54 g/bhp-h and particulate matter (PM) emissions of 0.004 g/bhp-h. Reducing NOx and PM emissions is crucial for meeting increasingly strict regulations (Figure 1). By 2010, the U.S. Environmental Protection Agency (EPA) will require NOx emissions of 0.2 g/bhp-h or less and PM emissions of 0.01 g/bhp-h or less. The technology demonstrated in this project may help natural gas engines meet the 2010 requirements. It is anticipated that this would lead to more extensive use of natural gas vehicles, resulting in reduced petroleum consumption.

The Next Generation Natural Gas Vehicle Activity

9/1/2003

The Next Generation Natural Gas Vehicle (NGNGV) R&D activity is leading important advances in natural gas vehicle (NGV) technology. NGNGV Phase I engine research projects demonstrated NO_x emissions well below EPA 2007 levels, and tow projects met EPA 2010 levels in medium-duty engines. NGNGV Phase II engine and vehicle projects covering a range of power and torque ratings are targeted to achieve EPA 2007/2010 emission levels in 2005. In addition, gaseous fuel expertise gained through the NGNGV activity and other government and industry NGV and infrastructure efforts is aiding the transition to a future transportation scenario based on hydrogen.

The Energy Smart Guide to Campus Cost Savings

7/1/2003

With 4,000-plus accredited, degree-granting institutions of postsecondary education in the U.S. and its outlying areas, energy efficiency improvements are impacting millions of students, faculty and staff. NACUBO and APPA are proud to have worked with the United States Department of Energy to bring you this resource guide, which is intended to give our members realworld input on a number of critical energy efficiency issues facing us today. It's also meant to alert our members to new opportunities to save both money and energy, while strengthening your institutions' contributions to environmental responsibility. And as such, it is part of our continuing services to our members. Our goal, as always, is to bring you up-to-date information you can use to make the difficult and important decisions that you face every day.

Evaluating the Emission Reduction Benefits of WMATA Natural Gas Buses

6/1/2003

This fact sheet describes the emission reduction benefits of natural gas buses demonstrated by the Washington D.C. Metropolitan Area Transit Authority fleet as part of the U.S. Department of Energy (DOE) FreedomCAR and Vehicle Technologies Program (FCVT).

On-Road Development of the C-Gas Plus Engine in Heavy-Duty Vehicles

6/1/2003

To advance NGV technology, DOE's National Renewable Energy Laboratory (NREL) supported on-road protoype development of the C-Gas Plus engine, beginning in November 2000. The goal of the project was to advance laboratory-developed technologies, on road and in service, for a natural gas truck and bus engine with significant improvements over the previous C8.3G natural gas engine. This goal was achieved. The C-Gas Plus was launched into production in July 2001 with increased engine ratings, reduced emissions, and lower cost compared with the C8.3G engine.

Tiger Teams Provide Coalitions Technical and Market Assistance

5/1/2003

This two-page fact sheet describes Clean Cities Technical Assistance (Tiger Teams) projects, both completed and ongoing.

Advanced Technology Vehicles in Service: NORCAL Waste Systems, Inc.

12/1/2002

This fact sheet describes the liquefied natural gas (LNG) long-haul heavy-duty trucks at Norcal Waste Systems Inc.'s sanitary fill company.

Authors: White, H.

Tiger Teams Technical Assistance: CNG Fuel Transfer

10/1/2002

This CD ROM offers step-by-step instructions on how to fuel compressed natural gas (CNG) from one bus to another.

Model Year 2003: Alternative Fuel Vehicles Available or Nearing Completion

8/27/2002

This document provides facts and figures for all model year 2003 alternative fuel vehicles available to fleet buyers and the general public to lease or purchase.

Authors: Coene, N.