Essays about: "Cavities"

Showing result 1 - 5 of 81 essays containing the word Cavities.

  1. 1. Ash distribution and cavities in Icelandic glaciers, a marker for snow accumulation and radar signal velocity change

    University essay from Göteborgs universitet/Institutionen för geovetenskaper

    Author : Andrea Håkansson; [2020-01-15]
    Keywords : Iceland; GPR; CMP; Glacier; Vatnajökull; Háabunga; Langjökull;

    Abstract : Glaciers in the geologically active Iceland has a high scientific as well as touristic value.In this thesis, the two largest glaciers on Iceland have been studied with GPR to find ifthe method is suitable to use in future glaciolocial studies where accumulation patternsand similar attributes are in focus in a world of deglaciation. READ MORE

  2. 2. Dimples in corrugated channels to improve efficiency in plate heat exchangers

    University essay from Lunds universitet/Kemiteknik (CI)

    Author : Gustav Karlsson; [2020]
    Keywords : Dimples; Plate Heat Exchangers; Heat Transfer Enhancement; CFD; Large Eddy Simulation; Reynolds Averaged Navier Stokes Simulation; chemical engineering; kemiteknik; Technology and Engineering;

    Abstract : The development of new heat exchanger patterns is ever changing. Companies are constantly pushing innovation to satisfy costumer needs in terms of thermal efficiency, reliability and serviceability. In this thesis, the implementation of dimples in the corrugated pattern of a plate heat exchanger is investigated to increase the thermal efficiency. READ MORE

  3. 3. Comparison of Tunnel Convergence Measurement Methods

    University essay from KTH/Fastigheter och byggande

    Author : Olof Erlandsson; [2020]
    Keywords : tunnel; convergence; displacement; tilt; sensor; tunnel; konvergens; förskjutning; tilt; sensor;

    Abstract : When creating cavities below ground, movements occur in the surrounding soil due to disrupted equilibrium. In tunnel constructions these displacements are referred to as tunnel convergence. This report compares four dierent methods for monitoring tunnel convergence with regards to both measurement precision and method cost. READ MORE

  4. 4. The Influence of Cavity Widths and Lateral Ventilation Conditions on the Fire Behaviour within a Non-Combustible Ventilated Façade System

    University essay from Lunds universitet/Avdelningen för Brandteknik

    Author : Daniel Fogerty; [2020]
    Keywords : Technology and Engineering;

    Abstract : Present uncertainties in key ventilation parameters, characterising the fire performance of facades, has necessitated clarification in the foundational understanding of the Fire Science Body of Knowledge. A test program conducted in collaboration between Lunds Universitet and the Kingspan Group, studied the influence of cavity widths and lateral ventilation conditions on the fire behaviour within Intermediate-scale ventilated façades following the ISO 13785-1 standards. READ MORE

  5. 5. Gynnas talgoxens häckningsframgång av gallring i barrskogen? : en experimentell studie om anpassad skogsgallring

    University essay from SLU/Dept. of Ecology

    Author : Angelia Ellvin; [2020]
    Keywords : talgoxe; häckningsframgång; boreal skog; gallring; undervegetation;

    Abstract : Skogsbruket orsakar strukturella förändringar som hotar biologisk mångfald världen över, men industrin är samtidigt nödvändig för samhället. Speciellt undervegetationen försvinner ofta vid låggallring (CT), som är den dominerande gallringsmetoden i bl.a. Skandinavien, Baltikum och Ryssland. READ MORE