Essays about: "Testmetod"

Showing result 1 - 5 of 42 essays containing the word Testmetod.

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. Development of an Accelerated Test Method for Compressed Natural Gas Fuel System Robustness against Contamination

   University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

   Author : Elias Aretorn; [2023]
   Keywords : CNG; Natural Gas; Heavy-Duty Vehicles; Fuel System; Contamination; Cleanliness; Accelerated Testing; Experimental Setup; Pressure Regulator;

   Abstract : A key factor for driving the shift towards sustainable transportation systems is alternative fuels, where compressed natural gas (CNG) is a beneficial alternative to the conventional fossil fuels with respect to greenhouse gas emissions. A fuel system is needed for heavy-duty natural gas vehicles, in order to transport the highly pressurized gas from the fuel tanks to the internal combustion engine. READ MORE

4. 3. Environmental and technical evaluation of cement reduction and test methods for fibre reinforced shotcrete in tunnels

   University essay from KTH/Betongbyggnad

   Author : Elin Brodd; Lina Östlund; [2022]
   Keywords : Shotcrete; Global Warming Potential; Environmental Product Declaration; Tunnel construction; Fibre reinforcement; Compressive strength; Residual strength; GGBS; Sprutbetong; Klimatpåverkan; Miljövarudeklaration; Tunnelbyggande; Fiberarmering; Tryckhållfasthet; Residualhållfasthet; Granulerad Masugnsslagg;

   Abstract : The dominating support method for hard rock tunnels today is use of fibre reinforced shotcrete in combination with rock bolts. The fibre reinforced shotcrete secures smaller blocks, while rock bolts are used to support larger blocks in the rock. Application of shotcrete is done by spraying against the rock surface using compressed air. READ MORE

5. 4. A Tool Prototype Supporting Risk-Based Testing in Agile Embedded Software Development

   University essay from Mälardalens universitet/Akademin för innovation, design och teknik

   Author : Saef Jasem; [2022]
   Keywords : Risk-Based Testing; Risk Analysis; Qualitative Research; Risk Management Tools; Design Thinking; Riskbaserad Testning; Riskanalys; Kvalitativ forskning; Riskhanteringsverktyg; Designtänkande;

   Abstract : Risk-Based Testing is a testing approach in software development that involves identifying, analyzing, controlling, testing, and reporting risks. The strategy provides several benefits and helps companies control risks and manage them effectively. READ MORE

6. 5. Evaluation of a testing method for shear stiffness properties for cross laminated timber

   University essay from Lunds universitet/Byggnadsmekanik; Lunds universitet/Institutionen för byggvetenskaper

   Author : Calle Lind; [2022]
   Keywords : CLT; cross laminated timber; EN 16351; four-point bending; rolling shear modulus; FE-modelling; Technology and Engineering;

   Abstract : Cross laminated timber (CLT) is an engineered wood product that was first developed in the 1990s. Since then it has grown in popularity thanks to its many advantages such as: low environment impact, high degree of prefabrication and low weight. As the material is relatively new the standardization process is still in the early stages. READ MORE