\n\u2022<\/span> \u00a0\u00a0\u00a0Burden \/ hold time
\n\u2022<\/span> \u00a0\u00a0\u00a0Total separation efficiency \/ gravimetric analysis
\n\u2022<\/span>\u00a0\u00a0\u00a0\u00a0Pressure loss<\/p>\n
Thanks to the modular layout, the individual components of the test rig, such as the high-resolution heatable light scattering spectrometer Promo\u00ae<\/sup>\u00a01000 H, the heatable dilution systems KHG 10 D and the heatable aerosol generator PLG 2100, can be simply removed from the HMT 1000 and used for other applications, e.g. measurements directly on the engine.<\/p>\n For many years, numerous companies all around the world have profited from the advantages of the heatable and pressure-resistant Palas\u00ae<\/sup>\u00a0test components for isothermal and isobaric particle size and particle quantity measurements on oil mists.<\/p>\n Palas\u00ae<\/sup>\u00a0HMT 1000 filter test rigs have been used internationally with great success in industry since 2001.<\/p>\n The heart of the\u00a0HMT 1000<\/b>\u00a0is the\u00a0light scattering spectrometer Promo\u00ae<\/sup>\u00a01000 H,\u00a0<\/b>which measures the particle size and the number of particles (and therefore the concentration) independently of each other but at the same time. With the aid of the Promo\u00ae<\/sup>\u00a01000 H it is possible to perform very quick,\u00a0clear<\/b>, reproducible and\u00a0isothermal<\/b>\u00a0measurements.<\/p>\n Fig 1: Promo\u00ae<\/sup>\u00a01000 H<\/p>\n Advantages of optical particle measurements over purely gravimetric measurements:<\/b><\/p>\n Conventional quantitative gravimetric determinations are often not quick or sensitive enough and provide no information about the particle size distribution. Thanks to the excellent correlation between the quantitative distribution measurement and the gravimetric analysis, very fast and volume-relevant testing of the oil separators is assured. The determination of the clean gas concentration can be performed within 1 minute using the Promo\u00ae<\/sup>1000 H system.<\/p>\n Why use isothermal measurements?<\/b><\/p>\n The viscosity of the oil \u2013 and therefore the particle sizes and particle concentrations in the oil mist \u2013 varies as a function of the engine temperature. For this reason, oil separators must be tested at different temperatures, i.e. with different particle sizes (up to approx. 5-8 \u00b5m) and particle concentrations (approx. 105<\/sup>to 107<\/sup>particles\/cm3<\/sup>) as well as different volume flows, in order to clearly characterize them in terms of their capacity to separate. Changes to the separation properties of the separator, e.g. due to the change in volume flow, temperature, filter burden etc. must be clearly determined through a reliableonline measurement<\/b>orin-situ measurement<\/b>. In order to avoid not only condensation effects, but also evaporative effects, on theHMT 1000<\/b>the entire aerosol guide, including the preparation, sampling and measurement volume, can be heated to 120\u00b0C. As a result, measurements of theisothermal fraction separation efficiency<\/b>can be performed.\u00a0Isothermal in-situ measurement, e.g. on the engine<\/b><\/p>\n The HMT 1000 test system is mobile and has a modular layout. As a result, the individual components can also be used for other tests and particle measurements, e.g. in-situ measurements on the engine.<\/p>\n Fig. 2: Isothermal particle sampling and in-situ measurement\u00a0Automatic measurement data acquisition with the Palas\u00ae<\/sup>\u00a0FTControl software<\/b><\/p>\n The software has been tried and tested in practice and enables almost fully-automated characterization of oil mist separators. This means that the results are independent of the person operating the test rig (see “Software” product group: FTControl).\u00a0Test rig control:<\/b><\/p>\n \u2022<\/span>\u00a0\u00a0\u00a0\u00a0Automated control of the volume flow Automatic measurement process<\/b>:<\/p>\n \u2022<\/span>\u00a0\u00a0\u00a0\u00a0Automatic evaluation of the pressure loss curve Fig 3: Comparison of different oil separators[\/vc_column_text][\/vc_column][\/vc_row]<\/p>\n","protected":false},"excerpt":{"rendered":" Heatable modular test system for oil mist separators better as ISO 17536<\/p>\n","protected":false},"featured_media":4793,"template":"","meta":[],"_links":{"self":[{"href":"https:\/\/palas.com.cn\/en\/wp-json\/wp\/v2\/product\/4778"}],"collection":[{"href":"https:\/\/palas.com.cn\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/palas.com.cn\/en\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/palas.com.cn\/en\/wp-json\/wp\/v2\/media\/4793"}],"wp:attachment":[{"href":"https:\/\/palas.com.cn\/en\/wp-json\/wp\/v2\/media?parent=4778"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}![\"\"](\"https:\/\/palas-china.com.cn\/en\/wp-content\/uploads\/2020\/07\/1-61-300x258.jpg\")
<\/p>\n![\"\"](\"https:\/\/palas-china.com.cn\/en\/wp-content\/uploads\/2020\/07\/2-41-300x191.jpg\")
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\n\u2022<\/span>\u00a0\u00a0\u00a0\u00a0Automated activation process for the aerosol generator
\n\u2022<\/span>\u00a0\u00a0\u00a0\u00a0Automatic switching between raw gas \/ clean gas measurement point
\n\u2022<\/span>\u00a0\u00a0\u00a0\u00a0Automatic temperature regulation
\n\u2022<\/span>\u00a0\u00a0\u00a0\u00a0Evaluation and recording of measurement signals, e.g. Dp, rel. humidity, temperature, volume flow, absolute pressure etc.<\/p>\n
\n\u2022<\/span>\u00a0\u00a0\u00a0\u00a0Automatic measurement of the fraction separation efficiency
\n\u2022<\/span>\u00a0\u00a0\u00a0\u00a0Automatic evaluation of the pressure loss curve under varying burden states, incl. measurement of the fraction separation efficiency<\/p>\n![\"\"](\"https:\/\/palas-china.com.cn\/en\/wp-content\/uploads\/2020\/07\/3-16-300x164.png\")
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