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En sammanställning av större geoenergianläggningar i Sverige har i samband med detta arbete gjorts. Arton anläggningar med bergvärme, borrhålslager, högtemperaturlager samt akfiverlager ingår i denna. Utifrån information om dessa anläggningars drift har rekommendationer för mätpunkter getts för att bättre säkra mätning och driftuppföljning. Geoenergi är Sveriges tredje största förnybara energikällShallow geothermal energy is the third biggest renewable source of energy in Sweden. Low-temperature energy stored in the ground and groundwater is collected by a ground heat exchanger with circulating brine and a ground source heat pump, GSHP. It is possible to extract both heating energy and cooling energy in these systems; in the winter the earth is utilised as a heat source, and in the summer

This paper examines the reaction-to-fire behaviour of building materials containing phase change materials by predicting their fire classification according to the European reaction-to-fire classification system (Euroclasses). While various building materials containing PCMs exist today, their application in buildings has been somewhat limited due to the fire behaviour of these building materials.

Packed beds with methane steam reforming reaction (MSR) can be used as thermochemical storage devices. The packing configuration can have a significant effect on the flow distribution which will further influence the heat/mass transfer, dispersion and reaction characteristics. In the present paper, the hydraulic, dispersion, heat/mass transfer and the MSR reaction properties are investigated in pa

Weakly coupled relaxors based on compositions (1-x) BaTiO 3 -xBiMeO 3 , where Me is a metal ion, have attracted at

The incineration furnace at National Veterinary Institute (SVA) in Uppsala, Sweden, generates a large amount of waste heat. Some of this heat is partially recovered and is used for heating one of the main buildings during the furnace operation. However, around 2,000 MWh is wasted annually due to unavailability of any storage system. This work studies in detail four different solutions to utilize t

The recent push for decarbonization in the maritime sector presents an opportunity for ports to strengthen their position as energy hubs. This work studies the existing energy flows in the Port of Trelleborg, one of Europe's biggest roll-on, roll-off ports, and proposes some energy-related development strategies. The current energy flows directly concerning the port are for the most part elect

Popular Abstract in English Heme is a small red-colored molecule consisting of an iron atom bound to a chemical structure called porphyrin. Heme is essential for many organisms, including humans, because it is a cofactor in a variety of proteins that are needed to sustain metabolism. The probably most famous heme protein is hemoglobin which gives blood its red color. The heme cofactor in hemoglobiHeme proteins form a large and diverse group of proteins which are involved in a variety of biological functions. The heme prosthetic group enables them to carry out redox reactions, transport electrons, bind gaseous molecules, and function as sensors. Despite their importance only little is generally known about heme protein biogenesis. The Gram-positive bacterium Enterococcus faecalis is found i

Som ett resultat av ökad efterfrågan på elektricitet från urban elektrifiering, den växande ekonomin och global uppvärmning står Indonesien inför stora utmaningar. För att lyckas med hållbar storskalig elektrifiering krävs stora mängder litiumjonbatterier som kan balansera elnätet. Den ökande efterfrågan på dessa har lett till brist på batterimineraler vilket försvårar situationen för landet. Sa

The true promise of MXene as a practical supercapacitor electrode hinges on the simultaneous advancement of its three-dimensional (3D) assembly and the engineering of its nanoscopic architecture, two critical factors for facilitating mass transport and enhancing an electrode’s charge-storage performance. Herein, we present a straightforward strategy to engineer robust 3D freestanding MXene (Ti3C2T

As the future energy goals of the building industry involve reducing the energy intensity in buildings as well as increasing the share of renewable energy sources, a suitable approach would be energy renovating existing buildings and further utilizing renewable energy production technology to reach Net-Zero Energy Building (NZEB) standard. This study is therefore investigating the economic feasibi

Sveriges framtida elsystem står inför en stor omställning, där kärnkraft successivt kommer att fasas ut, samtidigt som det sker en stor utbyggnad av vindkraft. Vindkraftens sjunkande priser, tillsammans med Sveriges mål om ett 100 % förnybart elsystem år 2040, gör det till en attraktiv resurs. En omställning från en leveranstrygg elproduktion baserad på kärnkraft, till en mer variabel med vindkrafSweden's future electricity system is facing a transformation, where nuclear power will gradually be phased out, while there is a large expansion of wind power. The declining wind power prices, together with Sweden's goal of a 100% renewable electricity system in 2040, makes it an attractive resource. However, a change from a secure supply of energy from nuclear production, to a more varia

Popular Abstract in English Fuel cells have been considered as alternative power source to petroleum oil. Especially, fuel cells have potentials to provide no pollutant emission (e.g., CO2, NOx, SOx) out of the power generation. For instance, once the fuel cells are installed instead of combustion engine in the cars used for commuting, transportation and leisure, the amount of pollutant emission cFuel cells are considered as a promising alternative environmentally benign power source to the existing ones depending on petroleum oil. Especially, proton-exchange membrane fuel cells (PEMFCs) have been intensively developed during the last decade because of their wide application windows including various portable, stationary and transportation applications. The market has been and will be main

The high penetration of wind power is increasing the intermittency and power variability into the existing power grid. This is forcing industries to look for optimal configurations in order to improve their systems performance and minimize these effects from the power production method. Studies show that there are different ways of reducing the power variability and therefore stabilize the energy