Essays about: "lågtryck"

Showing result 1 - 5 of 9 essays containing the word lågtryck.

1. 1. Hydraulic Modeling and Quantitative Microbial Risk Assessment of Intrusionin Water Distribution Networks Under Sustained Low-Pressure Situations

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

   Author : Maryam Shakibi; [2022]
   Keywords : drinking water distribution network; EPANET; hydraulic modelling; low pressure; pathogen intrusion; Quantitative Microbial Risk Assessment QMRA ; distributionsnät för dricksvatten; EPANET; hydraulisk modellering; lågtryck; patogen inläckage; Kvantitativ mikrobiell riskbedömning QMRA ;

   Abstract : Drinking water systems aim to remove, reduce, and prevent microbial contamination in water by usingmultiple barriers from catchments to consumers. Water distribution networks are vulnerable tocontamination from external sources if they lose their physical or hydraulic integrity. READ MORE

3. 2. A Quantitative Microbial Risk Assessment Associated with Cross-Connections in the Drinking Water Network in Combination with Hydraulic Modeling

   University essay from Uppsala universitet/Institutionen för geovetenskaper

   Author : Fatin Alzuhairi; [2022]
   Keywords : EPANET; QMRA; Water distribution network; Health risk analysis; Cross-connections and backflow; Low pressure; Water quality; Simulation; Pathogen; EPANET; QMRA; vattendistributionsnät; hälsoriskanalys; korskoppling; lågtryck; vattenkvalitet; simulering; patogen;

   Abstract : Drinking water companies have the technology and responsibility to deliver safe and high-quality drinking water to the water distribution systems network (WDN). However, many events within the WDN, such as cross-connections and backflow, might degrade water quality and pose public health risks to consumers. READ MORE

4. 3. Fire Extinguishing in Complex Facilities – A Study of Large Fire Extinguishing

   University essay from Lunds universitet/Avdelningen för Brandteknik

   Author : Hampus Ragnar; [2017]
   Keywords : European Spallation Source; ESS; large fires; automatic fire extinguishing systems; manual fire suppression systems; sprinkler; low-pressure; high-pressure; water mist; foam; CAFS; PGA; powder; portable fire extinguisher; cutting extinguisher; PPV; extinguishing grenade; stora bränder; automatiska släcksystem; manuella släcksystem; lågtryck; högtryck; vattendimma; skum; pulver; handbrandsläckare; skärsläckare; släckgranat; Technology and Engineering;

   Abstract : This report analyzes fire extinguishing solutions that might cut time between fire alarm and fire extinguishing at the European Spallation Source. A special design fire with a very high peak heat release rate is used. READ MORE

5. 4. Differences and Similarities between Extratropical Cyclones during Summer and Winter

   University essay from Lunds universitet/Förbränningsfysik; Lunds universitet/Fysiska institutionen

   Author : Stina Olandersson; [2016]
   Keywords : Extratropical cyclones; cyclogenesis; jet; quasi-geostrophic theory; North Atlantic Ocean; GFS; Physics and Astronomy;

   Abstract : Extratropical cyclones (ETC) are synoptic scale low pressure systems, which have a large impact on the weather in the mid latitudes. These low pressure systems usually develop during several days and are connected to fronts. Thus, they can bring cloudiness, rain and even severe weather including strong winds. READ MORE

6. 5. Interferometric Charecterization of Supersonic Gas-Jets for Laser Wakefield Acceleration

   University essay from Lunds universitet/Atomfysik; Lunds universitet/Fysiska institutionen

   Author : Jonatan Henriksson; [2016]
   Keywords : Interferometry; Laser Wakefield Acceleration; Mach-Zehnder; Gas-Jet characterization; Physics and Astronomy;

   Abstract : The Multi-Terawatt laser at the LLC (Lund Laser Centre) is used to accelerate particles using laser wakefield acceleration. Laser wakefield acceleration is a particle acceleration method that utilizes intense electric fields in plasma created by high intensity laser pulses when passing through gas. READ MORE