Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 9 of 9 for “"throttle valve"”.
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Analog and digital control of an electronic throttle valve
Two electronic throttler controllers were designed and implemented for an automotive throttle valve on a four-cylinder, spark-ignition gasoline engine. The first controller was designed using operational amplifiers and other analog componentry to realize a proportional-integral controller and …
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Design and Validation of a Proportional Throttle Valve System for Liquid-Fuel Active Combustion Control
… for liquid-fuel active combustion control. The throttle valve modulation system, discussed in this thesis, uses a 500-um piezoelectric stack coupled with an off-the-shelf valve. After comparing three other types of actuators, the piezoelectric stack was selected because of its compact size, …
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Flow modelling of scroll compressors and expanders
… of a scroll machine as an expander to replace a throttle valve has never been reported. This thesis describes the work carried out to develop a two phase scroll expander for use in vapour compression refrigeration systems. By this means the power requirements of the system would be decreased and …
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Development and performance of a velocity control system for modern combustion-powered scooters
… covers the development of a velocity-controlled Throttle-by-Wire-System for modern four-stroke 50 cc scooters (Euro 5). Further, the system performance, fuel-saving effect and exhaust optimization was investigated. The European Parliament has adopted major CO2 emission reductions by 2030. But …
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Control of the hybrid engine of the REMUS 600
… the closing and opening of the choke and throttle valve and write a code that allows the user to easily control the stepper motors that attach to each valve. Then, the engine was to be started, brought up to an ideal speed, and stabilized. All these processes were done through a PIC C …
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Design and Validation of a High-Bandwidth Fuel Injection System for Control of Combustion Instabilities
… is performed in this thesis: a piston and a throttle-valve configuration. The two systems were successfully built with piezoelectric actuation to drive the prime movers proportionally up to 800 Hz. Discussed in this thesis are the important constituents of the fuel injection system that …
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Continuous flash extraction of alcohols from fermentation broth
… the Bottoms. The CO2-rich phase was continuously throttled producing a condensate (Tops) as a result of the Joule-Thompson cooling effect. The total ethanol recovered from the extraction scheme was 46.0 to 80% for the fermentor containing 2% (v/v) ethanol and 57 to 89% for the fermentor containing …
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Time-resolved measurements of a transonic compressor during surge and rotating stall
… operation by slowly closing the downstream throttle valve. Measurements were obtained at several different span-wise locations and at two different operating speeds. The rotor was shown to exhibit many of the same characteristics typical of low-speed axial-flow machines. Both rotating stall …
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Inovace výukového modelu virtuálního dvojčete DC motoru
Tato bakalářská práce se zabývá inovací experimentálního stanoviště stejnosměrného motoru a jeho virtuálního dvojčete, vytvořeného v rámci předchozí bakalářské práce. Cílem bylo identifikovat a následně odstranit konstrukční nedostatky a rozšířit experimentální možnosti stanoviště. V oblasti …