{"id":2871,"date":"2021-07-08T15:40:00","date_gmt":"2021-07-08T15:40:00","guid":{"rendered":"https:\/\/systec-automotive.de\/?post_type=dt_portfolio&#038;p=2871"},"modified":"2024-09-15T13:11:44","modified_gmt":"2024-09-15T13:11:44","slug":"exhaust-gas-flow-meter","status":"publish","type":"dt_portfolio","link":"https:\/\/systec-automotive.de\/en\/produkte-services\/exhaust-gas-flow-meter\/","title":{"rendered":"Exhaust Gas Flow Metering"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"2871\" class=\"elementor elementor-2871 elementor-2477\" data-elementor-post-type=\"dt_portfolio\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-9d67430 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"9d67430\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-1ee87ce\" data-id=\"1ee87ce\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-2e459ce\" data-id=\"2e459ce\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-1437fbaa elementor-section-content-middle elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"1437fbaa\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t\t<div class=\"elementor-background-overlay\"><\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-wider\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-1940e367\" data-id=\"1940e367\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5520fdb elementor-widget elementor-widget-heading\" data-id=\"5520fdb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Exhaust Gas Flow Metering on the Engine Test Bed<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cbb2765 elementor-widget elementor-widget-heading\" data-id=\"cbb2765\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">deltaflowB - our exhaust gas flow meter<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-044c45d elementor-widget elementor-widget-text-editor\" data-id=\"044c45d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Precise reference flow measurement by a precise e<em>xhaust gas flow meter<\/em>\u00a0is one of the most important variables for exhaust gas and efficiency optimisation in modern engines. It plays a central role in exhaust gas flow and volume measurement on the engine test bed. Modern environmental regulations such as Euro 6, Euro 7, Tier II, Tier III, CN4 and CN5 need complex engine optimizations to be fulfilled.<\/p><p>The requirements for gas flow measurement on the engine dynamometer beds are particularly high. As a calibration standard, the measurement must not only be accurate, but also have a high dynamic response (measurement rate) and, depending on the application, withstand massive pulsation, contamination, soot and fowling and temperature. Their importance in modern test environments is immense. Gas mass flow measurement of fresh air, blow-by and exhaust gas is one of the most demanding measurement tasks, as it has to meet a large number of specific requirements:<\/p><ul><li>Fast measurement dynamics<\/li><li>Large measurement ranges<\/li><li>Pressure and flow pulsations resistance<\/li><li>Lowest possible pressure drop<\/li><li>High accuracy<\/li><li>CAN bus integration<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-ea85043\" data-id=\"ea85043\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4aaa9eb elementor-widget elementor-widget-image\" data-id=\"4aaa9eb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/systec-automotive.de\/wp-content\/uploads\/elementor\/thumbs\/freigestellt3-scaled-e1630590462859-rcy0u095nrayewa8ht7fv2i1lx4f8031zl2mzycdpg.jpg\" title=\"Abgasmengenmessung am Motorpr\u00fcfstandExhaust Gas Flow Meter\" alt=\"Abgasmengenmessung am Motorpr\u00fcfstand \/ exhaust gas flow meter\" loading=\"lazy\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-5d7fa8b elementor-section-content-middle elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"5d7fa8b\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t\t<div class=\"elementor-background-overlay\"><\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-wider\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-d0f66bf\" data-id=\"d0f66bf\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-05067b6 elementor-widget elementor-widget-image\" data-id=\"05067b6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/systec-automotive.de\/wp-content\/uploads\/elementor\/thumbs\/deltaflowB_freigestellt-e1734882837397-rcy0u09381qnnhb2025k60nbx35d6dmsthe4q3wwos.png\" title=\"deltaflow B exhaust gas flow meter ohne HG\" alt=\"exhaust gas flow meter deltaflowB\" loading=\"lazy\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">deltaflowB for EGR and Blow-by<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-54e511f\" data-id=\"54e511f\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-2b36984 elementor-widget elementor-widget-text-editor\" data-id=\"2b36984\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div><p><span lang=\"EN-US\">deltaflowB, our <em>exhaust gas flow meter<\/em>, is based on the principle of differential pressure measurement, which offers significant advantages over other measurement methods:<\/span><\/p><ul><li><span lang=\"EN-US\">Insensitive to fouling and contamination, easy cleaning if necessary<br \/><\/span><\/li><li><span lang=\"EN-US\">Wide temperature and pressure range<\/span><\/li><li><span lang=\"EN-US\">High accuracy<\/span><\/li><li><span lang=\"EN-US\">Low long term drift<\/span><\/li><li><span lang=\"EN-US\">Easy to recalibrate<\/span><\/li><\/ul><p><span lang=\"EN-US\">We have developed the deltaflowB as an <em>exhaust gas flow meter<\/em> specifically for various gas volume flow measurement on the engine test bed and as a <em>master for the flow meter test bed<\/em>, where it has become an integral part of the engine test bed equipment. It offers many advantages over standard differential pressure measurement:<br \/><\/span><\/p><p><strong>Primary element:<\/strong><\/p><p>The deltaflowB does not use classical primary elements (such as orifice, venturi, nozzle), but a newly developed combination of a low pressure loss venturi and an airfoil probe. This combination reduces the permanent pressure drop to well below 10% of the measured differential pressure, which means that even at maximum flow rates the pressure drop remains &lt;20 mbar.<\/p><p><strong>Sensorics: <\/strong><\/p><p>Commercially available pressure, differential pressure and temperature sensors are too slow for the dynamic requirements of exhaust gas volume measurement on the engine dynamometer and flow measurement on the test bench. One of the main problems, in addition to the slow transmission of measured values to the test bench, is that engine pulsations cannot be detected by standard sensors. This leads to measurement errors that depend on the strength and frequency of the pulsation (square root error).<\/p><p>The CAN-based sensors from systec Automotive measure up to 2kHz and use sophisticated filter strategies to separate pressure and flow pulsations and calculate precise air mass flows.<\/p><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-10d7162 elementor-section-content-top elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"10d7162\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t\t<div class=\"elementor-background-overlay\"><\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-wider\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-8dbd686\" data-id=\"8dbd686\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1502085 elementor-widget elementor-widget-text-editor\" data-id=\"1502085\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3>Redundant digital analysing electronics:<\/h3><p>The <em>exhaust gas flow meter deltaflowB<\/em> is equipped with triple sensor recording, which gives you several advantages:<\/p><ul><li>Plausibility check of the 3 x 3 readings (p, dp, T)<\/li><li>Automatic maintenance and recalibration recommendations<\/li><li>High accuracy thanks to averaging<\/li><\/ul><p>As the sensor readings are taken at different points in the venturi, the user also receives information about the flow conditions at the meter. For example, highly disturbed inlet conditions will result in deviations between the three sensors.<\/p><h3>Measurement calculator:<\/h3><p>The sensors are analysed and displayed on the PC measuring computer via CAN. The user-friendly software displays both: Individual measured values and filtered averages. The measurement PC and operator terminal are designed as a 19\u2033 rack version. Connection to the test bench is via the PC&#8217;s second CAN interface as standard, with additional analogue outputs available via optional I\/O cards.exhaust\u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-f04c377\" data-id=\"f04c377\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-419ca09 elementor-widget elementor-widget-text-editor\" data-id=\"419ca09\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3>Our Exhaust Gas Flow Meter on the Engine Test Bed:<\/h3><h4>Benefits at a Glance<\/h4><p>Thanks to its Venturi design, the deltaflowB has low inlet requirements. It is supplied with an inlet section of approximately 10D, which can be connected upstream as required.<\/p><p>Its high measurement dynamics enable accurate readings even with pulsations, without the need for dampers, known as volumes, between the engine and the measurement. It is therefore an advanced solution for both exhaust gas volume measurement on the engine dynamometer and flow measurement on the test bench, and offers a robust, efficient alternative to thermal flow meters.<\/p><p>Finally, thermal flowmeters need to be recalibrated up to four times a year, depending on accuracy requirements. This is not necessary with deltaflowB. The intelligent evaluation of the deltaflowB compares the redundant sensors and automatically recommends recalibration, usually every two years.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-36111d42 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"36111d42\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-73c39d7d\" data-id=\"73c39d7d\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3a435a28 elementor-widget-divider--view-line_text elementor-widget-divider--separator-type-pattern elementor-widget-divider--element-align-center elementor-widget elementor-widget-divider\" data-id=\"3a435a28\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\" style=\"--divider-pattern-url: url(&quot;data:image\/svg+xml,%3Csvg xmlns=&#039;http:\/\/www.w3.org\/2000\/svg&#039; preserveAspectRatio=&#039;none&#039; overflow=&#039;visible&#039; height=&#039;100%&#039; viewBox=&#039;0 0 20 16&#039; fill=&#039;none&#039; stroke=&#039;black&#039; stroke-width=&#039;3&#039; stroke-linecap=&#039;square&#039; stroke-miterlimit=&#039;10&#039;%3E%3Cg transform=&#039;translate(-12.000000, 0)&#039;%3E%3Cpath d=&#039;M28,0L10,18&#039;\/%3E%3Cpath d=&#039;M18,0L0,18&#039;\/%3E%3Cpath d=&#039;M48,0L30,18&#039;\/%3E%3Cpath d=&#039;M38,0L20,18&#039;\/%3E%3C\/g%3E%3C\/svg%3E&quot;);\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t\t<span class=\"elementor-divider__text elementor-divider__element\">\n\t\t\t\tSpecification\t\t\t\t<\/span>\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8459fee elementor-widget elementor-widget-text-editor\" data-id=\"8459fee\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<table class=\"bg-grau\">\n<tbody>\n<tr>\n<td><strong>Fluids<\/strong><\/td>\n<td>Air, Exhaust, Blow-By<\/td>\n<\/tr>\n<tr>\n<td><strong>Process<\/strong><\/td>\n<td>0..4,5bar abs <br>-40..200\u00b0C<\/td>\n<\/tr>\n<tr>\n<td><strong>Dimensions<\/strong><\/td>\n<td>Starts from DN25 (0..160kg\/h) up to DN200 (0..12.800kg\/h)<br>(others on request)<\/td>\n<\/tr>\n<tr>\n<td><strong>FlowSpan<\/strong><\/td>\n<td>Up to 1:28 (qmin\/qmax)<\/td>\n<\/tr>\n<tr>\n<td><strong>Accuracy<\/strong><\/td>\n<td>Standard: 1%<br>Pro: 0,5%<\/td>\n<\/tr>\n<tr>\n<td><strong>Flow Computer<\/strong><\/td>\n<td>CAN-based, Mess-PC 19&#8243;, 3HE Display\/Keypad: 19&#8243;, Slider,1HE<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-e462516 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"e462516\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-13759eb\" data-id=\"13759eb\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-236add9 elementor-widget elementor-widget-text-editor\" data-id=\"236add9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Rather interested in a portable emission measurement system (PEMS)? See the <strong><a href=\"https:\/\/systec-automotive.de\/en\/produkte-services\/pems-case-story-kba\/\">case story about our mini PEMS used by the KBA<\/a><\/strong>.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-324a331 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"324a331\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-3fd2ef1\" data-id=\"3fd2ef1\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7dd942f 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It plays a central role in exhaust gas flow and volume measurement on&hellip;<\/p>\n","protected":false},"author":3,"featured_media":3167,"comment_status":"closed","ping_status":"closed","template":"elementor_header_footer","dt_portfolio_category":[43],"dt_portfolio_tags":[],"class_list":["post-2871","dt_portfolio","type-dt_portfolio","status-publish","has-post-thumbnail","hentry","dt_portfolio_category-products"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Exhaust Gas Flow Metering - Systec Automotive<\/title>\n<meta name=\"description\" content=\"Looking for a high-precision exhaust gas flow meter for optimal engine performance? 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