Engineering consulting services for the design, analysis and testing of reciprocating

internal combustion engines and engine systems.

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News & Events

Vronay Awarded California Energy Comission Project November 07, 2008

Vronay Engineering Services, Continental Controls Corporation, and the Gas Technology Institute (GTI) have been awarded a contract from The California Energy Commission (CEC) as Subcontractors to The Southern California Gas Company to Develop an Ultra Low Emissions Control System for Combined Heat and Power Gas Engine Systems.

The project falls under the CEC’s Public Interest Energy Research (PIER) program. The project is scheduled to last almost two years with funding from the CEC and in-kind sources totaling approximately $2.8M. Vronay`s roles consist of both project management and technical lead for all aspects of the engine controls, sensor testing and management of the field test.

The project will include:

  • Selection and evaluation of a variety of new sensors and technologies that will not only allow for compliance with ultra low emissions levels but will also assure continued compliance while providing on board diagnostics to report any potential emissions related problems.
  • The use of simulation software and model based control system development to qualify prognostic / predictive models for possible onboard diagnostic functions and more robust air-fuel ratio control algorithms.
  • Selected sensors will be procured and integrated with required data processing and recording systems for operating a 75 kW Waukesha F817GU stoichiometric engine in the test lab at GTI. The engine will be configured with a new, Continental Controls Corporation EGC 2 air-fuel ratio control and a three-way catalyst (to be supplied by Catalyst Manufacturer) designed to reduce emissions below CARB 2007 emission limits for distributed generation.
  • The next step of the project will include integration and installation of the sensor technologies that have been chosen from the above research in the lab along with an EGC 4 Electronic Gas Carburetor to be integrated on a Combined Heat and Power Generation Natural Gas Engine equipped with an NSCR catalyst in the field. This system will be continuously monitored for a period of more than one year with state of the art remote monitoring tools.

At the completion of this testing period a kit will be made commercially available that will apply the technologies that have been chosen to meet this very demanding emissions requirement.

While other suppliers of Air Fuel Ratio products have attempted to meet CARB 2007 emissions compliance, none have yet proven the ability to maintain compliance over an extended period. This ambitious project seeks to remedy this situation. Please follow the following link to view the field test prospectus. Field Test Prospectus

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