Essays about: "exhaust gas treatment system"

Showing result 1 - 5 of 10 essays containing the words exhaust gas treatment system.

1. 1. Characterization of NOx sensor performance under oscillating pressure conditions

   University essay from KTH/Skolan för industriell teknik och management (ITM)

   Author : Álvaro López Méndez; [2023]
   Keywords : NOx sensors; engine – out heavy duty vehicle conditions; oscillating pressure; test rig testing; NOx-sensorer; motor – ut tunga fordonsförhållanden; oscillerande tryck; testriggtestning;

   Abstract : The NOx sensor is essential in the modern after-treatment system. Due to the introduction of regulations from the US, it is necessary to investigate how these sensors operate in conditions of pulsating pressures generated engine - out, after the turbocharger. READ MORE

3. 2. Design of flow guiding parts through CFD topology optimisation

   University essay from KTH/Fordonsdynamik

   Author : Aby Narayamparambil; [2021]
   Keywords : Topology optimisation in CFD; Ansys Fluent; Tosca Fluid; Particle track; Backflow tolerance; Topologi optimering i CFD; Ansys Fluent; Tosca Fluid; Particle track; Återflödets tolerans;

   Abstract : Scania works continuously to develop internal combustion engines and after treatment systems which can achieve low pollutant emissions and high efficiency. A major principal that Scania adopted for this goal is the Simulation Driven Development (SDD) process. READ MORE

4. 3. Evaluation of model-based fault diagnosis combining physical insights and neural networks applied to an exhaust gas treatment system case study

   University essay from Linköpings universitet/Fordonssystem

   Author : Björn Kleman; Henrik Lindgren; [2021]
   Keywords : model-based; fault diagnosis; neural networks; data-driven; Hybrid; SCR; exhaust gas treatment system; recurrent neural networks; grey-box; heavy duty truck; fault isolation; fault detection; diagnosis; urea; machine learning; Scania; structural model; MSO; residual; Fault Diagnosis Toolbox;

   Abstract : Fault diagnosis can be used to early detect faults in a technical system, which means that workshop service can be planned before a component is fully degraded. Fault diagnosis helps with avoiding downtime, accidents and can be used to reduce emissions for certain applications. READ MORE

5. 4. Simulating flow-noise for after-treatment systems

   University essay from KTH/Teknisk mekanik

   Author : Adam Sandström; [2020]
   Keywords : Flow-noise; CAA; DES; non-refelctive boundary conditions; stretched grid; Menter SST;

   Abstract : Modern silencers for heavy vehicle applications are designed to cancel out the sound generated by the effects of combustion and propagation of exhaust gases through the engine after-treatment system. The complex geometry within the compact silencer give rise to self generated (or flow-) noise that contribute to the total sound power radiated at the exhaust outlet. READ MORE

6. 5. Power and Methanol Production from Biomass Combined With Solar and Wind Energy : Analysis and Comparison

   University essay from KTH/Kraft- och värmeteknologi

   Author : Husni Firmansyah; [2018]
   Keywords : ;

   Abstract : The purpose of this work is to investigate the feasibility of an integrated system consisting of biomass-based power generation built-in with carbon capture technology combined with a water electrolysis unit operated by solar cells and wind turbines to produce fuel through the methanol synthesis process. The configurations are examined both technically and economically to determine their feasibility, and subjected to sensitivity analysis to determine their economic viability and optimum performance. READ MORE