AVL M.O.V.E PM PEMS iX
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AVL M.O.V.E PM PEMS iX PORTABLE SOOT AND PARTICULATE (PM) MEASUREMENT DEVICE. MARKET REQUIREMENTS In 2010, the US Environmental Protection Agency (US EPA) extended its heavy-duty in-use testing (HDIUT) legislation to include particulate (PM) emissions. This legislation requires that manufacturers of heavy-duty vehicles run tests with portable emission measurement systems (PEMS) to report emissions under real driving conditions. This also concerns manufacturers that deliver vehicles to the US. A correspon- ding ruling is also in preparation for off-road machines (US and EU). Besides legislation, soot and PM emissions are also important factors during engine development e.g. for the creation and validation of the Diesel Particle Filter (DPF) soot loading model which currently includes removal and weighing of the DPF. However due to the increasing com- plexity of exhaust aftertreatment systems, a removal of the DPF and the usage of common measurement devices for this application is not possible anymore requiring alternative solutions. THE AVL APPROACH The AVL PM PEMS iX has been specifically designed for legally required HDIUT and development tasks such as the creation and validation of the Diesel Particle Filter (DPF) soot loading model. The compact and robust device com- bines the time-resolved photo-acoustic soot measurement principle – as already known from the AVL Micro Soot Sensor – with a gravimetric PM measurement method using a particle filter. This combination is not only bene- ficial for the DPF soot loading model development, but also mandatory for HDIUT as the gravimetric measurement only delivers a single value for the entire test run, whereas the US legislation requires emission values over a defined period of time. The time-resolved particulate (PM) emissi- ons are calculated by using the mass of the particle filter, the time-resolved soot signal and the exhaust mass flow as inputs. All of the required calculations are available in AVL Concerto M.O.V.E.
Transcript of AVL M.O.V.E PM PEMS iX
AVL M.O.V.E PM PEMS iXPORTABLE SOOT AND PARTICULATE (PM) MEASUREMENT DEVICE.
MARKET REQUIREMENTSIn 2010, the US Environmental Protection Agency (US EPA) extended its heavy-duty in-use testing (HDIUT) legislation to include particulate (PM) emissions. This legislation requires that manufacturers of heavy-duty vehicles run tests with portable emission measurement systems (PEMS) to report emissions under real driving conditions. This also concerns manufacturers that deliver vehicles to the US. A correspon-ding ruling is also in preparation for off-road machines (US and EU). Besides legislation, soot and PM emissions are also important factors during engine development e.g. for the creation and validation of the Diesel Particle Filter (DPF) soot loading model which currently includes removal and weighing of the DPF. However due to the increasing com-plexity of exhaust aftertreatment systems, a removal of the DPF and the usage of common measurement devices for this application is not possible anymore requiring alternative solutions.
THE AVL APPROACHThe AVL PM PEMS iX has been specifically designed for legally required HDIUT and development tasks such as the creation and validation of the Diesel Particle Filter (DPF) soot loading model. The compact and robust device com-bines the time-resolved photo-acoustic soot measurement principle – as already known from the AVL Micro SootSensor – with a gravimetric PM measurement method using a particle filter. This combination is not only bene-ficial for the DPF soot loading model development, but also mandatory for HDIUT as the gravimetric measurement only delivers a single value for the entire test run, whereas the US legislation requires emission values over a defined period of time. The time-resolved particulate (PM) emissi-ons are calculated by using the mass of the particle filter, the time-resolved soot signal and the exhaust mass flow as inputs. All of the required calculations are available in AVL Concerto M.O.V.E.
Thanks to the flexible AVL M.O.V.E in-vehicle testing plat-form the AVL PM PEMS iX can be combined with additi-onal measuring equipment (e.g. AVL GAS PEMS, exhaust mass flow sensor), additional sensors (GPS, ambient conditions) and access to the vehicle CAN bus, making it a complete and integrated solution for PEMS testing.The AVL PM PEMS iX offers several new features inclu-ding an improved serviceability and a particularly low detection limit of 1 µg/m³. In addition it is still possible to choose between constant and proportional dilution. If constant dilution is selected, the AVL PM PEMS iX needs no actual signals during the test from the other testing equipment, making its integration into existing PEMS systems very easy. Data supplied from different measurement devices is integrated using AVL Concerto M.O.V.E software after the end of the test. Therefore the AVL PM PEMS iX is also a reliable measurement solution for the creation and validation of the particle filter soot loading model of latest exhaust aftertreatment systems. Here the device is used to validate the PM loading of the particle filter through usage of the gravimetric PM PEMS filter. This saves time and money, as a costly removal and weighing of the particle filter is not required anymore.
BENEFITS AT A GLANCE• US EPA approval for heavy-duty in-use testing (HDUIT)• Easy installation and integration into existing PEMS systems• User-friendly, robust design and high measurement accuracy
FOR FURTHER INFORMATION PLEASE CONTACT:
AVL List GmbH, Hans-List-Platz 1, A-8020 Graz, Austria Phone: +43 316 787-0, Fax: +43 316 787-400, Email: [email protected], www.avl.com
Left: Correlation results obtained with the AVL PM PEMS Mobile EmissionLab (MEL) during the US EPA In-Use evaluation program.Right: PM PEMS iX measurement on-board a passenger car.
Specifications
Operating temperature
Storage temperature
Ambient rel. humidity
Dimensions
Weight
Warm-up time at 20°C ambi-ent temperature
Power Demand/Operating Voltage
Exhaust inlet pressure
Data logging frequency
Interfaces
Dilution ratio (constant)
Dilution ratio (proportional)
Sample flow over filter
Filter holder
Soot measuring range
Soot detection limit
Rise time of soot signal
5 to 40 °C
-40 to +70 °C
Corr. max. humidity of 95 %at 25 °C
appr. 19 ” (482.6 mm) * 9.5 HU (422.3 mm) * 530 mm (w*h*d*)
appr. 45 kg
<1/2 hr
appr. 400 W (after warm-up), the PM PEMS can be operated either with 24 VDC or 110/230 VAC (depending on the version)
-80 mbar to +60 mbar (for higher pressures an optional available high pressure reduction module is required)
2 Hz standard, 10 Hz for selected values
Analog (0 -10 V, 2 In/ 4 Out), Digi-tal (4 In/ 4 Out), 1 TCP/IP
up to DR=20
DR=2 to 100
6 lpm
47 mm, measurement and backup filter
up to 1000 mg/m3 (at DR=20)
1 µg/m³
< 1 sec
