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TSI Systems for Combustion Research with Main Focus on Fluid Mechanics Systems
Докладчик(и): Dr. Lucia Bustin (TSI GmbH, Aachen, Germany) Дата, время проведения: 07 июня 2018 (чт), 10:00 Адрес: Ижорская 13 с2 к224 Optical systems are ideal for combustion diagnostics because the noninvasive nature of these systems allows measurements to be taken without inserting a probe into the measurement region. TSI offers a number of optical systems especially suited to combustion diagnostics and characterization. PLIF-based systems are generally used to investigate the flame front (OH), the flame reaction zone (CH) and the quantity of pollutants (CO, NO, SO2) generated from the combustion process. Soot formation is inherent in many flames and the LII technique provides details on the amount of soot generated to determine the burning efficiency. PIV systems are remarkable for 2D and 3D velocity measurements of flow fields in flames. PDPA systems are particularly useful in determining the velocity and size of particulates formed in combustion. TSI offers fully integrated optical systems that operate from a single, easy-to-use and seamless platform. For imaging based systems, such as PLIF and PIV, the Insight 4G software package is the key component which can be shared across different applications. One of the most important aspects of an integrated system is the timing control by synchronizer of all of the interacting components, which include the Tunable Dye laser, the ICCD camera, and the flow system being observed. A unique graphical approach has been implemented into Insight 4G that allows the user to validate and adjust the timings of individual components using an intuitive visual timing diagram, which depicts all events and their duration. PLIF images can be either single shot images or can be CCD-integrated over numerous laser pulses. The timing diagram approach allows one to easily set and verify the PLIF image capture with respect to the laser sequence and the PLIF capture process. TSI also provides a brief overview of the electrical mobility technology as integrated in TSI SMPS™ and EEPS™ spectrometers as the only method for on-line measurements of size and number concentration of nano and ultrafine emissions that are emitted from the combustion sources. This method is used to study emissions coming fr |