Essays about: "ambient factors"

Showing result 16 - 20 of 63 essays containing the words ambient factors.

  1. 16. Performance Evaluation of Ground Heating and Cooling Systems - Long-term performance measurements of two case buildings

    University essay from Lunds universitet/Avdelningen för Energi och byggnadsdesign; Lunds universitet/Institutionen för arkitektur och byggd miljö

    Author : Hao Liu; Hongyi Zhang; [2020]
    Keywords : Ground source heat pump GSHP ; System performance; Long-term monitoring; Geothermal; Borehole heat exchangers; Office building; Uncertainty analysis; Deep Green Cooling; Free cooling; Heating; Cooling; Technology and Engineering;

    Abstract : Geothermal energy is one of the oldest and most sustainable energy sources and has been used for thousands of years. The temperature of the ground at shallow depth is fairly constant, above the air temperature in winter and lower than the ambient temperature in summer. READ MORE

  3. 17. Thermal induced yellowing of peroxide bleached birch pulp

    University essay from Luleå tekniska universitet/Industriell miljö- och processteknik

    Author : Alexander Nygren; [2020]
    Keywords : Accelerated ageing; Bleaching; Brightness reversion; Kraft pulp; pH; Yellowing;

    Abstract : Brightness reversion, also known as yellowing, is a well-known phenomenon which means that the brightness of paper products decreases during ageing. The name of this phenomenon is based on that paper products usually change in color towards yellow during ageing. READ MORE

  4. 18. Challenges in food system development for deep space missions

    University essay from SLU/Department of Molecular Sciences

    Author : Tor Blomqvist; [2020]
    Keywords : space food; deep space; microgravity; Mars; space food systems; bioregenerative food systems; food processing;

    Abstract : With a reinvigoration of space travel, space agencies around the world collaborate to land the first woman and the next man on the moon by 2024, establish a moonbase with a constant human lunar presence by 2028 and bring humans to Mars by 2030. Even though we may have the technology to bring humans to Mars, we do not have the required food systems and the food technology to sustain them. READ MORE

  5. 19. Burning material behaviour in hypoxic environments: An experimental study examining fire dynamics of composite materials in vitiated conditions

    University essay from Lunds universitet/Avdelningen för Brandteknik

    Author : Robert Bray; [2020]
    Keywords : ORS; Fire engineering; hypoxic; polymers; Technology and Engineering;

    Abstract : The progression of fire safety research has contributed to improving the guiding principles of standardised building design. Research making use of pure materials, once common in homes and workplaces, are less relevant as such materials are no longer as prevalent. READ MORE

  6. 20. Effects of hydrodynamics on mussel larvae settlement and mussel distribution - with a focus on fine-scale velocities in Port Alfred Marina, South Africa

    University essay from Lunds universitet/Avdelningen för Teknisk vattenresurslära

    Author : Magnus Janson; [2020]
    Keywords : Larval settlement; hydrodynamics; water velocity; mussel distribution; Port Alfred; South Africa; Technology and Engineering;

    Abstract : Mussels, like other intertidal organisms, depend on the motion of water throughout their entire life cycle. Hydrodynamic forces are essential for the transportation and settlement of mussel larvae, as well as feeding and growth for adult mussels. READ MORE