97 uppsatser · sida 2 av 7
Experimentell studie
… solution in the future as an effective and environmental friendly method to an energy storage system (ESS). The technology is reliable and has a high efficiency that comes with low energy losses and a long lifetime. The range of possible fields is suitable for cutting energy …
Energy consumption is at present a major political issue, and numerous projects that comprise many nations are currently in process to increase energy efficiency and bring down energy dependency. As a member state of the EU, Sweden now faces the challenge of implementing …
… dependent, with a low load during periods of high ambient temperature. Thermal energy storage (TES) has the potential to shift heating loads from winter to summer, thus reducing cost and environmental impact of District Heat production. In this study, a concept of high …
… depended on how hard the water was bond to the particles of the substrate. The energy removed with aeration from the containers became higher as temperature rose; however, the fastest drying was obtained at higher temperatures. The amount of energy used to evaporate one gram of …
… show that passive heat exchangers can recover about 10 ? 15 % of the hot water energy consumption, not including standstill losses and hot water circulation. Calculations indicate that the energy savings for passive heat exchangers could be 20-25 %. If several kinds of heat …
… Electric Vehicles) and PHEV:s (Plug-in Hybrid Electric Vehicles). The Swedish Energy Agency has funded numerous research and development projects about electric vehicles in recent years. An important task for the Swedish Energy Agency is to allocate state funds to those projects …
en jämförande studie av fyra flödeskedjor från avlägg till förbrukare
… by about 100 000 hectares per year. In later years the price for biomass energy has increased to the same level as pulp wood. The high price on biomass energy and the large areas of stands in the need of brushing has created a new market with its own technical, economical and …
… for wireless sensor platforms which is capable of supplying a sensor node with energy from multiple sources, as well as status information from the PSU. Present power storage devices, like electric double-layer capacitors (EDLCs) and batteries, have become more and more common …
Ekhagsmotet i Jönköping
… a wooden framework with the same U-value as the thermal blocks to get a fair energy comparison. One of the advantages of the thermal blocks is its relatively high heat storage capacity. The heat storage capacity makes the indoor temperature more even and you do not have to have …
… a wooden framework with the same U-value as the thermal blocks to get a fair energy comparison. One of the advantages of the thermal blocks is its relatively high heat storage capacity. The heat storage capacity makes the indoor temperature more even and you do not have to have …
With increased deployment ofintermittent renewable energy, such aswind and solar power, energy storagebecomes necessary to help reduceproduction peaks. Thermoelectric EnergyStorage is a method still in researchphase, which stores electricity in hotwater at a temperature of 120 ° …
… for this is because sugar- and fodderbeets contain the highest amount of energy per hectare arable land for crops, and therefore it is interesting to study how to optimize the use of this energy. Usually the beets have to be stored after the harvest since the most of the beets …
Jämförelse av färska, stuklagrade samt ensilerade betor i laboratorieskala
… for this is because sugar- and fodderbeets contain the highest amount of energy per hectare arable land for crops, and therefore it is interesting to study how to optimize the use of this energy. Usually the beets have to be stored after the harvest since the most of the beets …
… cooling firms which can contribute to a stabilization of the Swedish national energy system. The business model is developed for a district heating and cooling firm and is exemplified with Fortum Heat. The theoretical investigation around the topic creates a rigid base for …
a study on production conditions and international competitiveness
… led to large scale power producers importing their biomass needs. Due to high energy content and homogeneity, wood pellets have become an internationally traded commodity used for large scale power production. The Baltic States have emerged as one of the largest wood pellet …
