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… value that were thrown away. A number of environmental laws and increcing energy prices have improved the prerequisites for increasing the use of these materials. At Seskarö sawmill they burn the sludgebark and a great deal of the bark in the sawmill furnace. The sludgebark has …
Med avseende på kyldistribution, drifttemperatur, klimat, isolering och termisk tröghet
Under 2011 började MacBat AB ta fram ett elenergilager kallat Macbat Energy Storage System (MESS), vilket är uppbyggt av 360 stycken tvåvolts bly-syrabatterier inhysta i ett 20 fots container. Då bly-syrabatterier är känsliga för värme är den här studien inriktad på att utreda …
… tried to find the most effective and cost effective way to harvest straw for energy recovery.You can choose between round bales and big square bales. Square bales are the cheapest way to produce straw for fuel recovery because you can optimize the length of the bales so they fit …
… The big question is if it´s possible to support this house in Malmö by energy from the sun as main source and pellets as secondary source? After a couple of guesses, limitations, see "Avgränsningar" below, and calculations the conclusions are that the first year of use the tank …
a potential approach to hurry up shelf-life tests on oat products
… shelf-life experiments, are used further in order to calculate the activation energy (EA) for the reaction of interest. The acceleration factor (AF) factor is thereafter calculated by using mathematical equations. The AF factor converts the accelerated shelf-life estimation …
… is today functional with electrical heating and heating of fossil fuel. The energy cost for these kinds of heating in buildings has heavily increased during the last years and the influence on the environment has become more visual. This leads to that enterprises today become …
… a guide for the Stockholm Arena to reduce theconsumption of purchased thermal energy, with the aim of producing its own energy.This is reported from a technical perspective, focusing at the design of a propersystem. Heat energy is today planned to be brought from district …
The purpose of the project has been to work out recommendations that reduce the energy-related costs and environmental impact of HPW Fresh & Dry Ltd., a fruit drying factory in Ghana. The factory produces electricity with diesel and biogas but also purchases electricity from the …
… as seasonal storage of solar heat from an adjacent solar field. Since both the energy company and the facility itself has undergone major changes over the past 30 years, there was a great need to gather facts in order to provide a picture of its current condition and potential …
… g?functions generated with the FLS approach and with the program EED (Earth EnergyDesigner). The latter is based on Eskilsons SBM, one of the first documents where the concept of g?functions wasintroduced. Once the approach is validated, the square COMSOL model is compared with …
In this thesis proposals for different designs of a borehole thermal energy storage (BTES) have been developed for the building DN-huset in Stockholm, Sweden. To build a BTES results in savings in energy costs by approximately 44 %, i.e. 2 million Swedish crowns annually …
… performance. The technology forrecovering the waste heat is a Borehole Thermal Energy Storage (BTES) which is aconstruction consisting of 140 vertical boreholes, 150 meters deep with an internal spaceof four meters.The calculated amount of energy for storage is approximately …
The high level of energy consumption that the industrialised countries have reached and the pollution that this brings has long been a cause for analysis and debate, development and usage of so called renewable energy sources is therefore more important than ever. The energy in …
En beskrivande litteraturstudie
… of district heating is associated with benefits such as better use of the energy in a fuel. This is the case of cogeneration plants where serial generation of electricity and thermal energy increases efficiency compared with the parallel generation where heat is generated …
Undersökning av ett nedlagt oljebergrum
This thesis considers the use of an oldrock cavern as thermal energy storage.With a large system of differentchillers a model was created to find anappropriate future system. There aremainly two trajectories to take. Eitheran installation of chillers needs to bemade or the rock …
