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Showing result 1 - 5 of 109 essays matching the above criteria.

1. 1. Conjugate Heat Transfer Analysis of HPGP Thruster

   University essay from Luleå tekniska universitet/Rymdteknik

   Author : Lisa Svensson; [2024]
   Keywords : aerospace; HPGP; ECAPS; ANSYS; conjugate heat transfer; thruster; space;

   Abstract : This master's thesis was conducted in collaboration with ECAPS, where a conjugate heat transfer analysis on their High Performance Green Propulsion (HPGP) 22N thruster was done. ECAPS is a Swedish propulsion company specializing in green propulsion. They develop thrusters for spacecraft orbit and attitude control, utilizing the propellant LMP-103S. READ MORE

3. 2. Integrating Waste Heat from Hydrogen Production Into District Heating

   University essay from Lunds universitet/Institutionen för energivetenskaper

   Author : Fawzi Kayali; [2023]
   Keywords : Hydrogen; Electrolysis; Waste Heat Recovery; Combined Heat and Power Plant; District Heating; Simulation; Sustainable Heating Systems; Technology and Engineering;

   Abstract : The aim of this research is to explore the feasibility of the integration of waste heat from electrolyzers within a Combined Heat and Power (CHP) plant and district heating (DH) network and suggest a practical setup for integration. With the escalating emphasis on the development of green hydrogen through electrolysis powered by renewable energy, a substantial amount of waste heat is generated, typically left unused. READ MORE

4. 3. Sustainability demands on internal and external providers of IT

   University essay from Stockholms universitet/Institutionen för data- och systemvetenskap

   Author : Emma Lenman; Ida Appelgren; [2023]
   Keywords : sustainable IT; sustainability; IT; green IT; data governance; energy efficient; greenhouse gas emissions;

   Abstract : The use of IT in companies is constantly expanding, and therefore, so is the energy consumption and carbon footprint from IT. If companies do not take steps towards more sustainable IT usage, the footprint will continue to expand, toxic metals will be used in hardware and the usage of world resources will not become more circular. READ MORE

5. 4. Geospatial Analysis Of Public Green And Estimation Of Maintenance Cost

   University essay from Malmö universitet/Institutionen för datavetenskap och medieteknik (DVMT)

   Author : Sadaf Zohra; Anitha Rajasekaran; [2023]
   Keywords : Data Analysis; GIS; Design Science Research; Geographical Information Systems; Software Engineering; Spatial Data;

   Abstract : In accordance with the guidelines set forth by PBSGEO, this study aims to highlight the significance of public greenspaces within cemeteries and to propose cost-saving solutions for graveyard maintenance. This research employs a Design Science approach to examine the impact of various factors, including geospatial data, on cemetery maintenance costs. READ MORE

6. 5. Calibration of the Measurement System for Methane Pyrolysis in Rocket Nozzle Cooling Channels

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

   Author : Jennifer Ly; [2023]
   Keywords : Correlational method; gas analysis; real time measurements; speed of sound; thermal conductivity; methane pyrolysis; rocket nozzle cooling; Korrelationsmetod; gasanalys; mätningar i real tid; ljudhastighet; värmeledningsförmåga; metanpyrolys; kylning av raketmunstycken iv;

   Abstract : Methane-based rocket propellant is gaining traction as a green technology with advantages in sustainability, cost-effectiveness, and performance. However, under high temperatures found in rocket nozzle cooling channels, methane can undergo thermal decomposition known as methane pyrolysis, resulting in the generation of hydrogen and solid carbon. READ MORE