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Automated Fractional Sampler of Diesel Particulate Being Used in a Wide Range of Test Applications
rules over the following three years. During the engine development phase, trade-offs between particulate generation and NOx emissions place high demands on engine testing, both in terms of measurement accuracy and system flexibility. Additionally, increased numbers of engine configurations being
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Impact of Biodiesel Emission Products from a Multi-Cylinder Direct Injection Diesel Engine on Particulate Filter Performance (.pdf)
to a 112kW General Electric. performance of diesel particulate filters. eddy current dynamometer used to load and motor the. engine for steady state testing. Continuous. Studies published by Williams and coworkers [10] report. measurement of emission products including NO, NOx,. a lower balance point
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Polymer Chip Drying - Spot Check Measurements (.pdf)
of less than -40 °C, multiple drying facilities can be. monitored within reasonable time frames by maintenance personnel at low costs. Where particulate contamination (dryer desiccant or polymer dust) is present at the sampling point, in-line filtration is. recommended. Reference Users. Conair
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Measurement and Control of Compressed Air Systems (.pdf)
the output of an air dryer after. a particulate filter. Correct positioning of flow and pressure regulation will. facilitate measurement at either line pressure or atmospheric pressure. A. suitably ranged flowmeter after the sensor provides an on-going indication. that an adequate flow rate is achieved
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Monitoring Fugitive Dust
piles. released in April 1971 and called for state EPA or DEQE, air quality. also produce fugitive dust, more. the measurement of total suspended. management districts, air resource. commonly known as dust bowl. particulate (TSP) in the range of 25. boards or special program agencies. conditions
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Partial Flow Sampling Systems For Transient Engine Testing
. The challenge for a. PFSS that provides accurate, repeatable. Trak) will become an important devel-. PFSS is to maintain constant propor-. particulate matter measurements for. opment tool for Caterpillar. "Repeatable. tional flow from an exhaust stream. transient testing of all engine types and. data
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Using emission spectroscopy to perform impurity analyses in UHP gases
Communications, pp 212 221, 1993. Mark L. Malczewski, PhD, is a development associate at Praxair, Tonawanda, NY. His research interests include particulate measurement in gases other than air or nitrogen and design of automated, continuous monitoring systems for particulate and gaseous impurities in UHP bulk
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Development and Application of a MHz Frame Rate
The ability to capture the unsteady dynamics of high speed compressible flows requires the use of ultra fast imaging diagnostics. Application of particulate based scattering techniques in high speed flows requires the use of high power, nanosecond duration, pulsed illumination sources