{"id":8133,"date":"2022-10-10T14:13:07","date_gmt":"2022-10-10T06:13:07","guid":{"rendered":"https:\/\/palas.com.cn\/en\/?p=8133"},"modified":"2022-10-11T11:13:35","modified_gmt":"2022-10-11T03:13:35","slug":"promo-2022-10-10","status":"publish","type":"post","link":"https:\/\/palas.com.cn\/en\/promo-2022-10-10\/","title":{"rendered":"Palas\u00ae Instrument Favored by Sichuan Universities"},"content":{"rendered":"

Instruments that provide accurate data monitoring and, that are well suited for use, are the cornerstone of supporting research experiments. In order to verify and guarantee the compliance of the dust collector discharge with the national air quality standards, the particle size distribution and concentration of dust-containing gases need to be measured online. A research team from the School of Chemical Engineering of a university in Sichuan in the research project “Application of Dilution Technology in Particle concentration Detection of High-humidity Aerosol”. A variety of instruments such as Palas\u00ae Light scattering aerosol spectrometer were selected for experimental testing. Thanks to Palas\u00ae instrument, reliable data on the number and size distribution of particles in aerosols can be obtained. The university’s research team has completed several research results in this project.<\/p>\n

Palas\u00ae Measurement Solutions<\/strong><\/p>\n

The university is a major national university. Its School of Chemical Engineering has established a range of chemical research, from basic to the transformation of engineering applications, Integrated scientific research system from chemical process development to chemical equipment design. The research team encountered Palas\u00ae through the recommendation of a professor at the Technical University of Vienna, Austria, after the experimental project was in the preparatory phase. After a careful review of the performance of the Palas\u00ae instruments. The RBG 2000 powder generator, VKL 10 aerosol dilution system, and Welas\u00ae Digital 2000 light scattering aerosol Spectrometer were selected as the instruments for the experiment.<\/p>\n

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Based on the measurement principle of light scattering detection device, a combined dilution and heating method was used to design an online detection system for high humidity aerosol particle concentration. The research team has achieved online detection of the emission concentration and particle size distribution of dust-containing gases. Pural NF particles in a naturally dry hygroscopic state are dispersed as aerosols by various instruments such as Palas\u00ae Welas\u00ae Digital 2000, RBG 2000 and VKL 10. \u00a0The particle size distribution of particles in different states was then monitored and compared with Spectrometer to characterize the offset of particle size distribution in different humidity. The test results are shown in the following figure:<\/p>\n

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Particle size distribution of raw aerosol gas in unused condition<\/em><\/p>\n

From the figure above, it can be seen that the particle size distribution of the hygroscopic particles is obviously different from that of the dry particles. The particle size distribution of the particles after moisture absorption was shifted to the direction of particle size reduction as a whole, and the concentration ratio of particles around 0.3 \u03bcm increased significantly. Take a particle size of 0.294\u03bcm as an example: the number concentration ratio was 0.069 in the dry state and 0.084 in the natural hygroscopic state, an increase of 22.7%. It was verified that the particle size and its distribution change in aerosol due to moisture absorption and condensation in high humidity environment. This leads to biased test results. The particle size distribution of the aerosol after dilution and drying by the diluter is basically the same as the particle size of the dry aerosol.<\/p>\n

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\nSchematic diagram of online inspection system
\n<\/em>
\nConstantly optimized stability monitoring
\n<\/strong><\/p>\n

The main detection instrument in the experiment, the Welas\u00ae Digital series, has now been upgraded to a Promo\u00ae series aerosol spectrometer. The unique design of the Palas\u00ae Promo\u00ae particle size spectrometer family allows for:<\/p>\n

\u00b7\u00a0 \u00a0Up to 106<\/sup>\/cm3<\/sup> particle number concentration limit, no dilution system required
\n\u00b7\u00a0 \u00a0256 raw sampling channels support up to 128 channels of output particle size distribution information
\n\u00b7\u00a0 \u00a0Interchangeable sensors provide greater flexibility for different applications
\n\u00b7\u00a0 \u00a0High temperature and high-pressure sensors are available, allowing for use at pressures up to 10 bar and temperatures from -120\u00b0C to 470\u00b0C.<\/p>\n

Palas\u00ae is pleased to provide strong technical support for research projects at Sichuan universities. In the future, we expect more opportunities to cooperate with universities and research institutions to help achieve research breakthroughs in aerosol detection.<\/p>\n

If you are interested in the technical article “<\/strong> Application of Dilution Technology in Particle concentration Detection of High-humidity Aerosol<\/strong> “<\/strong>, please register now to download the pdf file.<\/p>\n

Click to register now to download<\/strong><\/a><\/p>\n

Promo\u00ae 3000 Aerosol Spectrometer
\n<\/strong>
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Advantages
\n<\/strong>\u00b7\u00a0 \u00a0Measuring range of 0.2 to 100 \u00b5m (4 measuring ranges selectable in one device)
\n\u00b7\u00a0 \u00a0Up to four measuring ranges in only one device:
\n\u2013\u00a0 \u00a00,2 \u00b5m \u2013 10 \u00b5m
\n\u2013\u00a0 \u00a00,3 \u00b5m \u2013 17 \u00b5m
\n\u2013\u00a0 \u00a00,6 \u00b5m \u2013 40 \u00b5m
\n\u2013\u00a0 \u00a02 \u00b5m \u2013 100 \u00b5m (additionally for sensors 2300 and 2500)
\n\u00b7\u00a0 \u00a0Up to 128 size channels per measuring range
\n\u00b7\u00a0 \u00a0Concentration range of 1 particle\/cm3<\/sup> to 106<\/sup>\u00a0particles\/cm3
\n<\/sup>\u00b7\u00a0 \u00a0Calibration curves for different refractive indices
\n\u00b7\u00a0 \u00a0Very high and reproducible counting efficiency rate starting at 0.2 \u00b5m
\n\u00b7\u00a0 \u00a0Optical fiber technology
\n\u00b7\u00a0 \u00a0Simple operation with a large touch display
\n\u00b7\u00a0 \u00a0Calibration, cleaning and lamp replacement can all be performed independently by the customer
\n\u00b7\u00a0 \u00a0External control by RS 232 or Ethernet
\n\u00b7\u00a0 \u00a0With analysis software PDAnalyze
\n\u00b7\u00a0 \u00a0Optional: Software PDControl for operation as Welas\u00ae digital available
\n\u00b7\u00a0 \u00a0Low maintenance
\n\u00b7\u00a0 \u00a0Reliable function
\n\u00b7\u00a0 \u00a0Reduces your operating expenses<\/p>\n

Applications
\n<\/strong>\u00b7\u00a0 \u00a0Emission monitoring of installations
\n\u00b7\u00a0 \u00a0Control of grinding and classification processes
\n\u00b7\u00a0 \u00a0Monitoring of production processes in the food, pharmaceuticals and chemicals industries
\n\u00b7\u00a0 \u00a0Testing of complete filters, inertial and wet separators or electrostatic precipitators<\/p>\n

Palas\u00ae China will arrange a series of online webinars both in English and Chinese for Ambient air quality continuous monitoring system, Palas\u00ae SMPS scanning mobility particle sizer, Palas\u00ae Promo\u00ae & Aerosol Generator & Dilution system, ISO 16890 filter media tester, Palas\u00ae MFP 3000 G, ISO 29463-3 filter media tester, Palas\u00ae MFP Nano plus 4000, ISO 17536 Fractional filtration efficiency tester of Oil Mist Separator, Palas\u00ae HMT 1000, as well as Particle Distribution Measurement Devices Introduction \u2013 Optical Scattering Method and many other solutions. If interested in the webinars for our products, you are more than welcome to register on our official website and get the latest webinar plan!<\/p>\n


\nTopic: Ultrafine Particle Monitoring and Research
\n<\/strong>Time: Friday, October 28, 2022 15: 00 – 16: 00<\/strong><\/p>\n

Speaker: Mr. Yi Fangjie
\nMarket Manager Industry and Science at Palas\u00ae China<\/strong><\/p>\n

You are welcome to register for the conference!
\nClick here now to register for the conference<\/strong><\/a>
\n<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

Palas\u00ae Light Scattering Instrument for Aerosol Particle Measurement in High Humidity Environments<\/p>\n","protected":false},"author":2,"featured_media":8135,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[376],"tags":[],"_links":{"self":[{"href":"https:\/\/palas.com.cn\/en\/wp-json\/wp\/v2\/posts\/8133"}],"collection":[{"href":"https:\/\/palas.com.cn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/palas.com.cn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/palas.com.cn\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/palas.com.cn\/en\/wp-json\/wp\/v2\/comments?post=8133"}],"version-history":[{"count":5,"href":"https:\/\/palas.com.cn\/en\/wp-json\/wp\/v2\/posts\/8133\/revisions"}],"predecessor-version":[{"id":8146,"href":"https:\/\/palas.com.cn\/en\/wp-json\/wp\/v2\/posts\/8133\/revisions\/8146"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/palas.com.cn\/en\/wp-json\/wp\/v2\/media\/8135"}],"wp:attachment":[{"href":"https:\/\/palas.com.cn\/en\/wp-json\/wp\/v2\/media?parent=8133"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/palas.com.cn\/en\/wp-json\/wp\/v2\/categories?post=8133"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/palas.com.cn\/en\/wp-json\/wp\/v2\/tags?post=8133"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}