H4SH-17-C acoplamiento flender Helical gear unit H4

Flender/Flender Gear Units/Helical gear unit H4

exhaust gas stream, - aerosol conditioning, - signal formation and - signal recording and processing 1 tailored to the photoelectric aerosol sensor in accordance with the measuring task in hand One significant aspect in this context is the adaptation and optimisation of the PAS to various exhaust gas conditions on the plant side, as wet1 as testing and assessment of the measuring signals recorded while simultaneously recording the relevant exhaust gas parameters Buildin on the knowledge gained with the experimental PAS instruments, an estimation of the wilespread use of the PAS as an instrument for monitorin and/or adjustment of furnaces and industrial processes will be undertaken -with the goal openabling minimisation of emis- sions 3. Results The essential goals of the project were achieved In particular, the calibratability of the PAS was shown within the framework of studies on real combustion plants, the PAS signal shows linear relationship with the sum of the essentially environmentally-relevant 4 to 7-ringed PAHS (see also report by TW Rheinland) Many insights were ained for the development of the main sensor components, and also for the configuration of % experimental instruments,from the laboratory trials conducted during the first project phase, and particularly from various investigations The development of the components was aimed at operational reliability and minimum maintenance-free operating period of 1 to 1 year Fundamental investigations concerning the ageing behaviour of the 1 nm line of the UV lamps employed were conducted Furthermore, secondary calibration method was defined for the sensor (ozone method), the possibilities of optical calibration monitorin during operation were investigated, but their practical implementation is impeded by lac? of photoelectric sensors with long-term durab- lllty In extended measuring cam aigns on various combustion plants (inter alia oil, coal, refuse,car- bon electrode manufact