Essays about: "purge"

Showing result 1 - 5 of 13 essays containing the word purge.

  1. 1. Conceptualisation, Implementation and Commissioning of a Controlled Pyrolysis Rig : KTH Master Thesis Report

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

    Author : Arjun Monga; [2023]
    Keywords : coke deposition; pyrolysis; catalysis; methane; sample; cooling channels; regenerative cooling; rocket engines; koksavsättning; pyrolys; katalys; metan; prov; kylkanaler; regenerativ kylning; raketmotorer;

    Abstract : Liquid methane has seen popular interest from industry and academia as a next-generation rocket fuel due to its favorable performance characteristics and potential for extra-terrestrial in-situ resource utilisation. Since the rocket combustion chamber and nozzle are subject to high heat loads, regenerative cooling is a standard method to achieve lower temperatures. READ MORE

  3. 2. Analysis of condition for ALD deposition of ferroelectric HZO

    University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

    Author : Teodor Qvint; [2022]
    Keywords : HZO; Ferro; ALD; Temperature; Purge time; Technology and Engineering;

    Abstract : Deposition of ferroelectric hafnium zirconium oxide (HZO) on semiconductor samples with Atomic Layer Deposition (ALD) has proven to be a viable method of production. But while the physical processes of ALD deposition is relatively well know, there exists some gaps in knowledge about different parameters for the ALD and the resulting depositions. READ MORE

  4. 3. A Component-based Model of a Fuel Cell Vehicle System

    University essay from Linköpings universitet/Fordonssystem

    Author : David Salomonsson; Erik Eng; [2021]
    Keywords : Fuel; Cell; Fuel cell; Energy; Efficiency; Powertrain; Control; Propulsion; Battery; Supercapacitor; Capacitor; Compressor; PEMFC; Hydrogen; Nitrogen pollution; Purge valve; Compressor; Throttle; Humidifier; Fuel cell model; Matlab; Simulink; Model; Emissions; PEM;

    Abstract : Improving the efficiency and performance of vehicle propulsion systems has always been desirable, and with increasing environmental awareness this has become increasingly topical. A particularly strong focus today is at fossil-free alternatives, and there is a strong trend for electrification. READ MORE

  5. 4. Investigation of a CO-Production of Substitute Natural Gas and Biomethanol Plant Compared to Stand Alone Biomethanol Plant

    University essay from Lunds universitet/Kemiteknik (CI)

    Author : Susanne Brixland; [2019]
    Keywords : biomethanol; SNG; substitute natural gas; co-production; gasification; gasifier; biomass; syngas; chemical engineering; kemiteknik; Chemistry; Technology and Engineering;

    Abstract : Climate change is one of humanities greatest challenges; the greenhouse gases in the atmosphere are still increasing. There is not one solution that will fix this problem several different products, raw material and technologies are required to take the steps towards a renewable society. READ MORE

  6. 5. SnOx electron selective layers for perovskite/silicon tandem solar cells using atomic layer deposition

    University essay from KTH/Energiteknik

    Author : Lisa Anna Zafoschnig; [2018]
    Keywords : ;

    Abstract : In this work the application of ALD deposited SnOx films as electron transport layers in perovskite solar cells is analysed. Processes to fabricate homogeneous, transparent and conductive tin oxide films were developed on an Oxford Instruments FlexAL tool using a TDMASn precursor and H2O as oxidiser. READ MORE