Essays about: "hot spot"

Showing result 36 - 40 of 63 essays containing the words hot spot.

  1. 36. Molecular gas around the binary star R Aquarii

    University essay from Uppsala universitet/Institutionen för fysik och astronomi

    Author : Terese Olander; [2017]
    Keywords : R Aquarii; R Aqr; circumstellar envelope; CSE; CO;

    Abstract : At the end of the lives of low- to intermediate mass stars they can be found on the asymptotic giant branch (AGB). The AGB phase ends when the entire circumstellar envelope (CSE) is blown away in a superwindphase, in the end creating a planetary nebula. It is unknown what shapes the CSE and the planetary nebula. Binarity is a favored theory. READ MORE

  3. 37. Design of an Energy-Efficient and Cost-Effective Cross Laminated Timber (CLT) House in Waikuku Beach, New Zealand

    University essay from KTH/Energiteknik

    Author : Guillaume Bournique; [2016]
    Keywords : ;

    Abstract : The Canterbury earthquakes in 2010 and 2011 caused significant damage to the Christchurch building stock. However, it is an opportunity to build more comfortable and energy efficient buildings. READ MORE

  4. 38. Application of dynamic rating to improve transportation capability of the power systems connected to wind power plants

    University essay from KTH/Skolan för elektro- och systemteknik (EES)

    Author : Marco Merante; [2016]
    Keywords : dynamic line rating; overhead lines; conductor temperature model; wind energy;

    Abstract : Current flow in the electrical grid is changing due to the introduction of new generators and loads.Specifically, weak Overhead lines, are a constraint for the introduction of wind farms located farfrom the central network. The current situation requires smart solutions to improve the transportationcapabilities of these grid’s components. READ MORE

  5. 39. Mass flows of per- and polyfluoroalkyl substances (PFASs) in a Swedish wastewater network and treatment plant

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Linda Glimstedt; [2016]
    Keywords : per- and polyfluoroalkyl substances; PFAS; 6:2 FTSA; wastewater; wastewater network; wastewater treatment; WWTP; Uppsala; Kungsängsverket; per- och polyfluoroalkylerade substanser; PFAS; 6:2 FTSA; avloppsvatten; ledningsnät; avloppsnät; avloppsvattenrening; reningsverk; Uppsala; Kungsängsverket;

    Abstract : Per- and polyfluoroalkyl substances (PFASs) are man-made substances that hold unique properties. They are not only oil- and water repellants but also very resistant to degradation. Due to these properties, the applications are endless and PFASs can be found in a wide range of industrial applications and commercial products. READ MORE

  6. 40. CFD ANALYSIS ON THE COOLING OF NON GUIDED OIL NATURAL AIR NATURAL TYPES OF TRANSFORMERS

    University essay from KTH/Mekanik

    Author : Maura Gallarotti; [2016]
    Keywords : ;

    Abstract : ABB is moving towards more powerful and compact transformers and an efficient cooling is of paramount importance in order to avoid overheating.In this master thesis, transformers without guides for the oil flow have been analysed: they allow a faster and cheaper manufacturing process, but at the same time the absence of guides makes the cooling design more difficult. READ MORE