Essays about: "Clogging"

Showing result 36 - 40 of 50 essays containing the word Clogging.

1. 36. Evaluation of Ce Addition by Different Wire inLiquid 316 Stainless Steel

   University essay from KTH/Materialvetenskap

   Author : Oscar Juneblad Målar; [2015]
   Keywords : Stainless steel; Continuous Casting; Mold Metallurgy; REM-­‐clusters; Electrolytic Extraction;

   Abstract : It is well known that REMs are strong oxide and sulphide formers that can easily form large clusters which have harmful effect on the casting process as well as the quality of the final steel product. By adding these elements right before casting, the number of narrow transfer parts are eliminated (compared to if added in ladle) Also, the REM inclusions has less time to sinter together to form large clusters, preventing clogging. READ MORE

3. 37. Biochar as soil amendment in flow-through planters - for increased treatment of zinc roof runoff

   University essay from SLU/Dept. of Landscape Architecture, Planning and Management (from 130101)

   Author : Froste Wiström; [2014]
   Keywords : biochar; pyrolysis; stormwater; bioretention; flow-through planter; zinc roof; cation exchange capacity; treatment; water holding capacity; carbon sequestration;

   Abstract : In times of increased flooding, enhanced by climate change, polluted stormwater poses an increased threat to the environment through contaminated water entering waterways. Bioretention utilizes natural processes in soil and vegetation to treat pollutants and combat this threat. READ MORE

4. 38. Experimental Transient Behaviour Characterisation of Induction Motor fed by Variable Frequency Drives for Pump Applications

   University essay from KTH/Elektrisk energiomvandling

   Author : Amer Halilovic; [2014]
   Keywords : Variable Frequency Drive; Centrifugal Pump; Induction Motor; Volts-per-Hertz Control; Speed Control; Overdimensioning; Frekvensomriktare; centrifugalpump; asynkronmotor; skalärkontroll; hastighetskontroll; överdimensionering;

   Abstract : The use of variable frequency drives in centrifugal pump applications has raised the question of how to select a drive. Clogging obstacles in waste water applications create unknown transient loads for the pump system. A sudden load increase occurrence can clog the pump if the drive cannot supply enough current to reach the motor’s torque demand. READ MORE

5. 39. Pressure measurements in pulsatingflows

   University essay from KTH/Mekanik

   Author : Marcus Winroth; [2014]
   Keywords : ;

   Abstract : Due to confidentiality several axis in the figures and large parts of the specifics of the resultsand of the experimental setups have been replaced by symbols. Also one section of the report,concerning a prototype sensor, has been removed completely due to the sensitive nature of theresults. READ MORE

6. 40. Water hyacinths (Eichornia crassipes) and their presence in Shire River, Malawi : Problems caused by them and ways of utilise them elsewhere

   University essay from Uppsala universitet/Institutionen för geovetenskaper

   Author : Malin Mellhorn; [2013]
   Keywords : water hyacinths; Eichhornia crassipes; green manure; Malawi;

   Abstract : Malawi is one of many countries throughout the world struggling with massive amounts of water hyacinths (Eichornia crassipes) in the country’s fresh water resources.  In nutrient-rich ecosystems where the aquatic weed has no natural enemies it will reproduce very rapidly with the consequence that lakes become overgrown, water flow in rivers is reduced, and other water organisms becomes excluded. READ MORE