Essays about: "convective areas"

Showing result 1 - 5 of 9 essays containing the words convective areas.

  1. 1. The Heat reducing Effects of Reflective Clothing in Firefighting : A study on the efficiency of reflective textiles in personal protective equipment

    University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Author : Albin Henning; [2022]
    Keywords : Firefighter; Reflective textiles; Radiant heat; Protective equipment;

    Abstract : Modern firefighter protective equipment is excellent at protecting firefighters from surrounding heat, but how effective is at deflecting incoming radiant heat, and would the use of more reflective textiles, be able to further increase the equipment’s protective properties? This study aims to understand the different properties that reflective materials, compared to standard firefighter outer layers, have against radiative heat flux. The textiles of firefighter turnout gear and the reflective textiles used in the smelting industry have been examined when exposed to varying levels of radiant heat in a cone calorimeter. READ MORE

  3. 2. How design storms with normally distributed intensities customized from precipitation radar data in Sweden affect the modeled hydraulic response to extreme rainfalls

    University essay from Uppsala universitet/Luft-, vatten- och landskapslära

    Author : Daniel Elfström; Max Stefansson; [2021]
    Keywords : cloudbursts; cloudburst mapping; spatial rain variation; pluvial flooding; hydraulic response; Swedish precipitation radar data; idealized urban catchment; hydrodynamic modeling; skyfall; skyfallskartering; gaussisk regnfördelning; spatial regnvariation; pluvial översvämning; hydraulisk respons; svensk nederbördsradardata; idealiserat urbant avrinningsområde; hydrodynamisk modellering;

    Abstract : Intense but short-term cloudbursts may cause severe flooding in urban areas. Such short-term cloudbursts mostly are of convective character, where the rain intensity may vary considerably within relatively small areas. Using uniform design rains where maximum intensity is assumed over the whole catchment is common practice in Sweden, though. READ MORE

  4. 3. A Case Study Evaluating the Performance of the NWP model HARMONIE in Simulating Convective Snowbands

    University essay from Uppsala universitet/Luft-, vatten- och landskapslära

    Author : Louise Jungefeldt; [2020]
    Keywords : Convective snow bands; Baltic Sea; HARMONIE; Snökanoner; Östersjön; HARMONIE;

    Abstract : Convective snow bands forming over the Baltic Sea can result in heavy precipitation along the Swedish east coast. Forecasting these events well is of great importance to prevent road traffic injuries, increased pressure at hospitals and cancelled bus traffic. READ MORE

  5. 4. The influence of temporal rainfall distribution and storm movement on flood depth in urban pluvial cloud burst modeling

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Michael Henrich; [2019]
    Keywords : Pluvial flooding; cloud burst; flood modeling; MIKE 21; temporal distribution; storm movement; areal reduction factors; ARFs; hyetograph; design storm; CDS; Pluviala översvämningar; skyfall; översvämningsmodellering; MIKE 21; regnmönstrets tidsfördelning; molnrörelse; areal reduktion av nederbörd; ARFs; hyetograph; typregn; CDS;

    Abstract : Pluvial floods are the most difficult and to date least investigated phenomena in urban hydrology. While efforts are being made to increase the knowledge base concerning this type of flooding, a large part of the difficulty lies in the nature of the precipitation. READ MORE

  6. 5. An experimental study on an evaporative cooler for hot rural areas

    University essay from KTH/Energiteknik

    Author : Katarina Gustafsson; Hanna Simson; [2016]
    Keywords : ;

    Abstract : In developing countries about 40 % of the food-waste is due to post-harvest losses, such as improper storage. The Zeer-pot is an evaporative cooler, which cools the inside by convective heat transfer, and can be used to keep fruits and vegetables fresh longer. READ MORE