Essays about: "elevated temperature."

Showing result 1 - 5 of 77 essays containing the words elevated temperature..

  1. 1. Experimental validation of a periodic heat transfer CFD model of a vertical shell and tube heat exchanger

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

    Author : Patrik Bengtsson; Dilip Kumar Vellore Saikumar; [2019]
    Keywords : ;

    Abstract : Flow obstructions are used as a passive design element in heat exchangers to enhance heattransfer. Further, a change in flow structure can also have a positive effect on the heat transfer. Avertical shell and tube heat exchanger, used to recover heat in the greywater stream, isinvestigated in this study. READ MORE

  2. 2. An Investigation of the Adhesive Interaction between Polyethylene and Silicone with DMA and AFM

    University essay from Lunds universitet/Centrum för analys och syntes

    Author : Joel Falk; [2019]
    Keywords : Atomic Force Microscope; Adhesion; Characterization; Dynamic Mechanical Analysis; Injection Molding; Polyethylene; Polymer; Silicone; Test method development; Materials chemistry; Materialkemi; Technology and Engineering;

    Abstract : Stickiness between materials can be a challening task when dealing with the complex interactions and processes related to packaging engineering. Part of the problem is that many factors like temperature, pressure, surface treatment as well as surface roughness all could play a part in contributing to the stickiness between materials. READ MORE

  3. 3. Climate change effects on the sub-Saharan agriculture- a case study in Kenya on maize growth and adaptation options

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Alessia Signorelli; [2019]
    Keywords : physical geography; sub-saharan africa; agriculture; maize; climate change; Earth and Environmental Sciences;

    Abstract : Climate change is progressively advancing, and is affecting the entire globe, with some areas more vulnerable than others. Among them, the sub-Saharan Africa, with a very low adaptive capacity, mainly relies on one economic sector: agriculture. Due to its high climate-dependency, agriculture is at elevated risk. READ MORE

  4. 4. West Nile virus i Sverige : har risken för spridning ökat efter fynd av Nilfebersmyggan?

    University essay from SLU/Dept. of Animal Environment and Health

    Author : Daniela Larsson; [2019]
    Keywords : West Nile fever; WNV; Culex modestus; häst; människa;

    Abstract : Virus är en vanlig orsak till sjukdomar världen över. West Nile virus sprids med myggor och orsakar sjukdomen West Nile fever hos bland annat människor och hästar. Sjukdomen kan ha allvarliga konsekvenser med neurologiska symtom och ibland dödlig utgång. Viruset upptäcktes ursprungligen i Uganda 1937 men har fått en omfattande spridning. READ MORE

  5. 5. Indoor Air Pollution, Passive Ventilation Strategies and Thermal Comfort in Nepal

    University essay from Lunds universitet/Institutionen för arkitektur och byggd miljö

    Author : Marianne Löwgren; [2019]
    Keywords : Energy poverty; Solid biomass fuels; Improved cooking stoves; Indoor air pollution; Carbon monoxide; Vernacular architecture; Passive ventilation; Air exchange rate; Indoor air quality; Thermal comfort; Operative temperature; Sustainable societal development; Social Sciences; Technology and Engineering;

    Abstract : Indoor Air Pollution (IAP) resulting from indoor burning of solid biomass fuels in poorly ventilated kitchens is a severe health risk in parts of the world where energy poverty is prevalent. Passive ventilation, i.e. taking advantage of naturally induced airflow has been suggested as crucial in reducing IAP levels below safe limits. READ MORE