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Skip to Search Results- 1Atrin Tavakoli
- 1Boddez, Jason Bradley
- 1Bullock, Dallin S
- 1Ebrahimi, Khashayar
- 1Fathimani, Maryam
- 1Gordon, David
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Applications of nonautonomous infinite-dimensional systems control theory for parabolic PDEs
DownloadFall 2013
Parabolic partial differential equations (PDEs) are used as models of transport-reaction phenomena in a variety of different industrial chemical and materials engineering processes, and can yield precise descriptions of process variables with complex temporal and spatially dependent system...
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Characterization of Particulate Emissions of Homogeneous Charge Compression Ignition Engines
DownloadFall 2013
The particle size distribution, volatility, and effective density of particulate matter are measured using a cooperative fuel research engine during motoring, spark ignition, and homogeneous charge compression ignition. For all operating modes, less than 5% of the particulate mass remains when...
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Economic and Environmental Assessment of Large-scale Electro-chemical and Flywheel Energy Storage Systems for Stationary Applications
DownloadFall 2022
There are few cost and environmental feasibility assessments of energy storage systems for utility-scale applications. The development of techno-economic and environmental performance indicators is crucial to make an informed decision on future development and deployment of energy storage...
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Effects of Negative Valve Overlap on HCCI Combustion and its use in the Control of HCCI Combustion Timing
DownloadFall 2014
Homogeneous charge compression ignition (HCCI) combustion can produce higher efficiencies and lower emissions when compared to tradition spark or compression ignition engines. This study reports an experimental investigation into the effects of valve timings on HCCI combustion conditions. Using a...
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Fall 2012
An experimental single cylinder engine with variable valve timing is used to study spark ignition and homogeneous charge compression ignition (HCCI). The discrete wavelet transform, on a single cylinder engine with a cam-phasing head, is used in real time for knock detection in HCCI. Classical...
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Spring 2019
Homogeneous Charge Compression Ignition (HCCI) has the potential to significantly reduce oxides of nitrogen NOx emissions, while maintaining a high fuel efficiency compared to existing lean-burn spark ignition engines. HCCI is characterized by compression induced autoignition of a lean...
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Spring 2016
A dual-fuel system is used to control HCCI combustion timing and load in a CFR engine. The systems steady-state response to iso-octane and n-heptane injected energy is investigated then a dynamic ARMAX model is found using system identification. This model is used to design a norm-optimal...
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Localization of Global Discourse and the Breakdown of the Washington Consensus (WC): A Case Study of Korean Higher Education Reform (1993-2012)
DownloadFall 2015
In my dissertation paper, I sought the political implications of neo-liberal education reform with the case of recent Korean higher education reforms. I first explored the macro-causal relationship of neo-liberal higher education reform in transnational social relations, and then the political...
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Fall 2016
Different model based control strategies are developed for combustion timing and load control in a single cylinder Homogeneous Charge Compression Ignition (HCCI) engine. In HCCI engines, a lean homogeneous air-fuel mixture auto-ignites due to compression and the resulting combustion occurs at...