Sökning: "radiative heat transfer"

Visar resultat 1 - 5 av 7 uppsatser innehållade orden radiative heat transfer.

  1. 1. Water born cooling of closed greenhouses : An enclosed vertical water curtain cooling system

    Magister-uppsats, Högskolan Dalarna/Institutionen för information och teknik

    Författare :Ahmad Kamal; [2022]
    Nyckelord :Greenhouses; Water born cooling; Enclosed water curtain; radiative cooling; Surplus heat energy;

    Sammanfattning : The greenhouses play a key role in food sustainable production, the purpose of the greenhouses is to make an artificial suitable environment to grow different kinds of plants. The cost of energy used in the greenhouses to ensure the optimum temperature, humidity, and CO2 concentration, makes up a large part of the final cost of food. LÄS MER

  3. 2. The I2T5 : Enhancement of the Thermal Design of an Iodine Cold Gas Thruster

    Master-uppsats, Luleå tekniska universitet/Rymdteknik

    Författare :Roger Michael Pereira; [2020]
    Nyckelord :Cold gas thruster; I2T5; CubeSat propulsion; thermal analysis; heat transfer; thermal resistance; orbital heat fluxes;

    Sammanfattning : The I2T5, an iodine-propelled, cold gas thruster, developed by ThrustMe, France, is the first of its kind to make it successfully to space. Due to its simple, reliable and cost-effective design, it is a suitable propulsion system for CubeSat missions with low delta-V (ΔV) requirements. LÄS MER

  4. 3. Thermal gas radiation modelling for CFD simulation of rocket thrust chamber

    Master-uppsats, KTH/Kraft- och värmeteknologi

    Författare :Rejish Lal Johnson Samee Lal; [2019]
    Nyckelord :Gas radiation; thrust chamber; CFD; heat transfer; Rocflam3; methane; Gasstrålning; tryckkammare; CFD; värmeöverföring; Rocflam3; metan;

    Sammanfattning : Methane and oxygen are a promising propellant combination in future rocket propulsion engines mainly due to its advantages like reusability and cost reduction. In order to have a comprehensive understanding of this propellant combination extensive research work is being done. LÄS MER

  5. 4. Thermal gas radiation modelling for CFD simulation of rocket thrust chamber

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Rejish Lal Johnson S; [2019]
    Nyckelord :Gas radiation; thrust chamber; CFD; heat transfer; Rocflam3; methane.; Gasstrålning; tryckkammare; CFD; värmeöverföring; Rocflam3; metan.;

    Sammanfattning : Methane and oxygen are a promising propellant combination in future rocket propulsion engines mainly due to its advantages like reusability and cost reduction. In order to have a comprehensive understanding of this propellant combination extensive research work is being done. LÄS MER

  7. 5. Measurement of Thermal Insulation properties of TBC inside the Combustion chamber

    Uppsats för yrkesexamina på grundnivå, Luleå tekniska universitet/Materialvetenskap

    Författare :Siamak Kianzad; [2017]
    Nyckelord :Materials; TBC; Thermal barrier coating; heat flux; crack; combustion chamber; heavy duty diesel engine; single-cylinder; dummy valve; 8YSZ; YSZ; segmented cracks; radiative heat transfer; lanthanum gadolinium; EB-PVD; PVD; APS; CVD; horizontal cracks; vertical cracks; crack propagation; crack initiation;

    Sammanfattning : This master thesis project was performed in collaboration with Scania CV AB, Engine Materials group. The purpose with the project was to investigate different ceramic TBC (Thermal Barrier Coating) thermal insulation properties inside the combustion chamber. LÄS MER