Experimentally demonstrate brake efficiency of 48.5% at EPA 2010 emission level at single steady-state point. The most noteworthy achievements in this program are summarized as follows: Demonstrated technologies through advanced integrated experiments and analysis to achieve the technical objectives of the NZ-50 program with 50.2% equivalent thermal efficiency under EPA 2010 emissions regulations. These objectives were successfully met during the course of the NZ-50 program. Ultimately, develop technical prime-path for meeting the overall goal of the NZ-50 program, i.e., 50% thermal efficiency at 2010 regulated emissions. Develop technology roadmap for meeting emission regulations of 2010 and beyond while mitigating the associated degradation in engine fuel consumption. Optimize subsystem components and engine controls (calibration) to demonstrate thermal efficiency that is in compliance with the DOE 2005 Joule milestone, meaning greater than 45% thermal efficiency at 2007 emission levels. Test prototype subsystem hardware featuring technology enhancements and demonstrate effective application on a multi-cylinder, production feasible heavy-duty engine test-bed. Implement an integrated analytical/experimental development plan for improving subsystem and component capabilities in support of emerging engine technologies for emissions and thermal efficiency goals of the program. The key objectives of the NZ-50 program for this first phase were to: Quantify thermal efficiency degradation associated with reduction more » of engine-out NOx emissions to the 2007 regulated level of ~1.1 g/hp-hr.
This phase was completed in September, 2010. The second phase was initiated in 2006, and this phase was named Advancements in Engine Combustion Systems to Enable High-Efficiency Clean Combustion for Heavy-Duty Engines. The first phase was called Near-Zero Emission at 50 Percent Thermal Efficiency, and was completed in 2007. This program was split into two major phases. Specifically, (i) A GT-Power,ĭetroit Diesel Corporation (DDC) has successfully completed a 10 year DOE sponsored heavy-duty truck engine program, hereafter referred to as the NZ-50 program. During this time, the project team heavily relied on highly detailed numerical modeling techniques to evaluate the feasibility of the APA technology. The first phase of the project consists of four months of applied research, starting from Septemand was completed by December 31, 2005.
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