Diesel Exhaust Fluid (DEF) Supply System Modelling for Control and Diagnosis Applications

2015 ◽  
Vol 8 (1) ◽  
pp. 350-360 ◽  
Author(s):  
Federico Stola ◽  
Matteo De Cesare ◽  
Luca Lacchini ◽  
Nicolò Cavina ◽  
Sandeep Sohal
Keyword(s):  
Diesel Exhaust ◽  
Supply System ◽  
System Modelling ◽  
Diesel Exhaust Fluid

Application of data-driven methods for energy system modelling demonstrated on an adaptive cooling supply system

Energy ◽  
2021 ◽  
pp. 120894
Author(s):  
Thomas Schreiber ◽  
Christoph Netsch ◽  
Sören Eschweiler ◽  
Tianyuan Wang ◽  
Thomas Storek ◽  
...  
Keyword(s):  
Energy System ◽  
Supply System ◽  
Data Driven ◽  
System Modelling

scholarly journals System for controlled distribution of non-demand-covering water availability: concept, design and modelling

2021 ◽  
Author(s):  
David Walter ◽  
Philipp Klingel
Keyword(s):  
System Design ◽  
Water Availability ◽  
Storage Tank ◽  
Supply System ◽  
Consumption Patterns ◽  
System Modelling ◽  
Concept Design ◽  
Storage Tanks ◽  
Pipe System ◽  
System Input

Abstract This paper presents a novel water supply system to distribute limited water resources with varying quantity. The system enables a controlled, planned and, thus, fair distribution of the water availability independently from the consumption patterns. The system input is transported by gravitation through a branched pipe system to decentralised storage tanks. Each storage tank is allocated to a supply unit which comprises several consumers and, possibly, distribution structures connecting the consumers and the tank. At every junction the water is divided by a distribution tank with several chambers that are separated by weir overflows. Water that is not consumed is redistributed in the system automatically. The concept, the components, planning criteria and system design as well as the system modelling are described within the paper. The application of the solution in a supply area located in northern Vietnam is outlined.

Feasibility study of a near-infrared absorption sensor for detection of adulterated diesel exhaust fluid (Arla 32)

2018 ◽  
Author(s):  
Jorsiele Damasceno Cerqueira ◽  
Paulo Alexandre Souza da Silva ◽  
Valéria Loureiro da Silva
Keyword(s):  
Feasibility Study ◽  
Infrared Absorption ◽  
Diesel Exhaust ◽  
Near Infrared ◽  
Diesel Exhaust Fluid

scholarly journals Inline quality monitoring of diesel exhaust fluid (AdBlue) by using the 3<i>ω</i> method

2021 ◽  
Vol 10 (1) ◽  
pp. 5-12
Author(s):  
Ralf E. Bernhardsgrütter ◽  
Christoph J. Hepp ◽  
Martin Jägle ◽  
Hans-Fridtjof Pernau ◽  
Katrin Schmitt ◽  
...  
Keyword(s):  
Selective Catalytic Reduction ◽  
Diesel Exhaust ◽  
Catalytic Reduction ◽  
Combustion Process ◽  
Treatment Method ◽  
Good Alternative ◽  
Film Sensor ◽  
3Ω Method ◽  
Additional Information ◽  
Diesel Exhaust Fluid

Abstract. Because diesel combustion processes produce harmful detrimental nitrous oxides, the selective catalytic reduction, an after-treatment method using diesel exhaust fluid (AdBlue) to reduce these emissions, is an important part in the cycle of the combustion process. Therefore, it is crucial to continuously monitor the quality of the diesel exhaust fluid to secure the ideal selective catalytic reduction. This article presents a platinum thin-film sensor using the 3ω method which is able to characterize the diesel exhaust fluid. By means of the 3ω method, information about the concentration of urea in water can be extracted. In this investigation, a digital lock-in amplification technique is used to execute the measurements. The results show that this sensor can determine the urea content within 1 % by weight. Moreover, besides the analysis of the 3ω signal, the 1ω signal is analyzed in depth to receive additional information about the temperature. Because the same structure can measure multiple parameters, such as concentration, temperature, and flow, the sensor might be a good alternative to the state-of-the-art diesel exhaust fluid sensor.

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