Essays about: "effective medium model"

Showing result 1 - 5 of 57 essays containing the words effective medium model.

  1. 1. Numerical Modelling of a Packed Bed Thermal Energy Storage for Applications in a Carnot Battery : KTH Thesis Report

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

    Author : Gabriel Juul; [2023]
    Keywords : Thermal energy storage; Carnot battery; sand; packed bed; granular medium; porous medium; effective medium technique; effective thermal conductivity; paramedic study; 3D model; COMSOL; numerical modelling; Lagring av värmeenergi; Carnot-batteri; sand; packad bädd; granulärt medium; poröst medium; effektiv mediumteknik; effektiv värmeledningsförmåga; parametrisk studie; 3D-modell; COMSOL; numerisk modellering;

    Abstract : This thesis explores the heat transfer characteristics of a packed bed thermal energy storage device through the development of a 3D model in COMSOL Multiphysics. The model is based on a laboratory-scale device consisting of an aluminum box filled with sand, which acts as the thermal storage medium. READ MORE

  3. 2. Developing a closed-loop supply chain to eliminate Single Use Plastic products : Implementing Circular Economy practices driven by EU commission directives

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

    Author : Elsa Ottosson; Rania Oweini; [2023]
    Keywords : Circular Economy; Circular Business Models; Closed Loop Supply Chain; Single Use Plastic; EU-directive; Small and medium sized enterprise; Post Consumer Plastic Waste;

    Abstract : Single use plastic products (SUPs) are a primary cause of plastic pollution causing significant environmental harm. These products have little to no value after use and are challenging to recycle cost efficiently. READ MORE

  4. 3. When is Electric Freight Cost Competitive? : Computational modeling and simulation of total cost of ownership for electric truck fleets

    University essay from Linköpings universitet/Institutionen för ekonomisk och industriell utveckling

    Author : Anton Zackrisson; [2023]
    Keywords : electric freight; battery-electric trucks; total cost of ownership; decision making under deep uncertainty DMDU ; cost-competitiveness; exploratory modeling and analysis EMA ; EMA workbench; quasi-Monte Carlo method; VRP; EVRP; elektrifiering; godstransport; elektriska lastbilar; total ägandekostnad; kostnadskonkurrenskraft; ruttoptimering;

    Abstract : Battery electric trucks (BETs) offer environmental benefits in terms of reduced carbon emissions and enhanced energy efficiency but have been challenged with economic viability compared to conventional internal combustion engine trucks (ICETs) caused by substantial acquisition costs, limited charging infrastructure, and concerns regarding range and payload capacity.  Previous studies focus on TCO at the vehicle or policy level but overlook the system and firm-level impacts. READ MORE

  5. 4. Applying persuasive design to increase engagement in sustainability-related projects : A case study of a climate change adaptation project’s website

    University essay from Linnéuniversitetet/Institutionen för informatik (IK)

    Author : Arian Zamanian; Huihong Yang; [2022]
    Keywords : Persuasive design; Sustainability; Theory of Planned Behavior; Fogg Behavior Model; User engagement; Persuasive design; Hållbarhet; Teorin för Planerat Beteende; Foggs Beteende Modell; Användarengagemang;

    Abstract : A website’s foundation should be its usability and its user engagement. Designers can go further and persuade users. The design practice of persuasive design revolves around affecting people indirectly by changing attitudes or behaviors through product features or service characteristics. READ MORE

  6. 5. ERP Usage and its Impact on Firm Performance : A Quantitative Study of Swedish SMEs

    University essay from Stockholms universitet/Företagsekonomiska institutionen

    Author : Alejandra Chavez; Michael Duberg; [2021]
    Keywords : ERP usage; SME; Firm performance; PLS; Post-implementation;

    Abstract : Purpose: In literature, there is not sufficient research of the impact of Enterprise Resource planning (ERP) usage on firm performance for small and medium sized Swedish companies. Therefore, the purpose of this paper is to provide clarifications regarding this topic by investigating two research questions: What factors drive ERP usage in small- and medium- sized Swedish enterprises? Does ERP usage affect Firm Performance in small- and medium- sized Swedish enterprises?  Design/Methodology/Approach: To approach our research questions 10 hypotheses are constructed based on previous studies. READ MORE