Review of the 21st Century Truck Partnership, Second Report (2012) / Chapter Skim
Currently Skimming:
Appendix C: Responses from the 21st Century Truck Partnership to the Findings and Recommendations from the National Research Council Phase 1 Review
Appendix C: Responses from the 21st Century Truck Partnership to the Findings and Recommendations from the National Research Council Phase 1 Review
Pages 145-160
The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.
From page 145... ...
Appendix C Responses from the 21st Century Truck Partnership to the Findings and Recommendations from the National Research Council Phase 1 Review 145
|
From page 146... ...
Notable failures of that kind are develop hybrid medium-duty and heavy-duty components and systems and REPORT discussed in Chapter 3, under the headings of "Goal of Thermal Efficiency of 55 Percent" and the work done to implement idle reduction technologies in the market. The "Goals Involving Fuels." Partnership would like to highlight the accomplishments by the major RECOMMENDATION: A clearer goal setting strategy should be developed, and the goals should engine manufacturers in meeting stringent 2007 emissions regulations with be clearly stated in measurable engineering terms and reviewed periodically so as to be based on no degradation in fuel economy.
|
From page 147... ...
FINDING: Although DOE has concluded that the 50 percent thermal efficiency goal has been DOE's public- private partnerships are to facilitate technologies which 3-1 achieved, the experimental test results show that none of the industry partners achieved the goal of would demonstrate feasibility of stretch goals. Achieving 50 % engine ENGINES 50 percent thermal efficiency at 2010 emissions standards with a complete engine system.
|
From page 148... ...
The SuperTruck projects involve demonstration strategies for 50 percent thermal efficiency goals and pursuit of real-world demonstration of 50 percent thermal efficiency engines in Class 8 trucks, building on previously-developed technologies and developing new technologies with partners.
|
From page 149... ...
3-6 result in the Partnership's goal of 50 percent thermal efficiency for a typical Class 8 tractor-trailer ENGINES combination on a level road at a constant speed of 65 mph and a GVW of 80,000 lbs. Even if 50- The SuperTruck solicitation included "the development of a heavy-duty percent thermal efficiency were to be achieved at, or near, the peak torque condition, up to a 7 diesel engine capable of achieving 50% Brake Thermal Efficiency (BTE)
|
From page 150... ...
With respect to ongoing work on Low recommended levels for many years. The feasibility of reaching a 2013 Temperature Combustion, DOE should objectively analyze the potential viability of this stretch goal of 55% thermal efficiency demonstration goal may need to be combustion concept for heavy-duty engine applications, recognizing the many issues that would reconsidered, and the partnership has commenced the process to revise the need to be resolved to achieve commercial viability.
|
From page 151... ...
The committee is concerned support two principal objectives; first to assess the robustness of FUELS about the viability of low temperature combustion regimes used in this effort, and that the combustion strategies to fuel property variations found within modern applicability of the results of this project may be of limited value. The committee is also commercial fuels, and second to develop better understanding of fuel concerned that DOE's work may define optimum fuel properties for an engine with a new effects to support longer term co-development of fuels and engines by combustion regime that are not consistent with the properties of conventional diesel fuel defined industry.
|
From page 152... ...
21CTP HTML projects have utilized the laboratory extensively; it has provided support to 35 different 21CTP In 2007 the HTML discussed a five-year plan with the director of the projects since 2001. Whereas few advanced materials were actually utilized in the 21CTP project Vehicle Technologies Program that addresses the needs of the HTML and to demonstrate the major 50 percent thermal efficiency goal, it is expected to contribute to the the HTML User Programs to effectively support the missions of the 21CTP in valuable ways in the future.
|
From page 153... ...
propulsion and idle reduction features, including start-stop operation and creeping under all electric power. RECOMMENDATION: Development and demonstration of heavy-duty hybrid truck technology should be continued as part of the 21CTP program in order to reduce barriers to Page 9 153
|
From page 154... ...
involvement in this process would be beneficial and could help accelerate RECOMMENDATION: Since tax credits for hybrid trucks established in the Energy Policy Act development of procedures more suitable than the interim procedures of 2005 expire at the end of 2009, DOE should work with EPA and stakeholders to accelerate the currently specified by the IRS for obtaining tax credit certification. development of fuel economy and emissions certification procedures for heavy-duty hybrid vehicles so that the benefits of hybridization can be rewarded to encourage commercial adoption Under the SmartWay program, the EPA is working on drive cycle development for different vocations.
|
From page 155... ...
idle reduction auxiliary power unit to efficiently prevent unnecessary truck idling. FINDING: The 21CTP lightweight materials research was terminated as a result of the 2007 Thanks to the availability of Recovery Act funding to support two 5-2 budget reduction.
|
From page 156... ...
5-6 range of new program participants and the sharing of responsibilities among new program PARASITICS partners, inherently incorporating higher technical and durability risks than the present The SuperTruck projects for the first time integrate vehicle, engine, and approaches. Truck manufacturers are assemblers of components specified by the truck buyer, and component goals into an integrated set of objectives.
|
From page 157... ...
reduction technologies. RECOMMENDATION: The 21CTP should continue to support R&D for the technologies that As discussed in the 5-1 response, DOE also funded a project to develop a reduce idle time and address the remaining technical challenges (including California emission factory integrated and installed idle reduction auxiliary power unit to requirements, completely integrated APU/HVAC (auxiliary power unit/heating, ventilation, and efficiently prevent unnecessary truck idling.
|
From page 158... ...
It is EPA's SmartWay Transport Partnership program has a robust deployment REDUCTION unclear whether the emissions requirement of the goal was met. program for idle reduction technologies.
|
From page 159... ...
provide more improvements in idle reduction and parasitic losses related to engine components that are more efficient and provide better control of energy use. FINDING: The work on fuel cell APU is being carried out by the DOD and a number of The Partnership concurs with this recommendation.
|
From page 160... ...
In light of this need, DOT future plans have been directed and DOT will continue to share information and coordinate on various largely at accident avoidance technologies. topics such as hydrogen, hybrid electrics, and additional alternative fuels, RECOMMENDATION: The committee agrees with the apparent decision by DOT to put more as they relate to tradeoffs between safety and fuel economy.
|
Key Terms
This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
More
information on Chapter Skim is available.