163 uppsatser · sida 4 av 11
… were analysed in VEDAIR for the year 2003: Vargön, Mariedal and the downtown district. In the whole municipality the upper evaluation threshold for PM10, which is defined as 14 µg/m3 for annual average, was exceeded due to background contribution of particles. In all areas …
Kartläggning av nuvarande fjärrkylasystem och framtida utvecklingsmöjligheter
… comfort cooling of the airport’s buildings is high and is mainly provided by district cooling. District cooling is based on the same principle as district heating. A centralized production facility for the district cooling offers advantages from both an environmental and …
… has been performed to, and in cooperation with Vetlanda Energi och teknik AB. District heating for commercial purpose started in the USA in 1877. Today the network has grown into big and complex systems, which demand maintenance and service to keep up the security of the …
… has been performed to, and in cooperation with Vetlanda Energi och teknik AB. District heating for commercial purpose started in the USA in 1877. Today the network has grown into big and complex systems, which demand maintenance and service to keep up the security of the …
En analys av dess förekomst och effekter
When several production units provide a district heating network, water is pumped from different directions. When the flows from the plants finally meet in the network, the water can be completely still. These places are called zero flow zones. In district heating networks with …
… of this installation was that they hoped it would lead to a smaller usage of district heating which would lead to a reduction of the heating expenses for their buildings. The geothermal heating system consists of 19 energy wells and 4 geothermal heat pumps, and it is one of the …
Att utveckla ett gemensamt gränssnitt
… is required. This thesis concerns the heating of buildings. The load on district heating is heavy during certain times of the day. This is partly because we are in need of a high power output of the heat in our homes in the winter. The power demand is also increased in response …
Kan man med hjälp av lagrad värme undvika att de uppstår i betonghus?
… is required. This thesis concerns the heating of buildings. The load on district heating is heavy during certain times of the day. This is partly because we are in need of a high power output of the heat in our homes in the winter. The power demand is also increased in response …
… heating. I have chosen to compare tree different alternatives for small district heating with straw as fuel. In two of the alternatives the plant is being fed by batches of straw in big bales in the third alternative the plant has a straw chopper and continues straw feeding by …
… and if the pellet is a reasonable substitute. 2008 statistics from the Swedish district heating association were analyzed and a calculation was performed to determine how many tons of pellets is needed to replace coal and oil. Fuel costs for oil and coal were compared with the …
… system is most suitable for the construction. The options are geothermal, district and pellet heating systems. The aspects of interest in this study are economics, service and maintenance, as well as environmental impacts. Another important factor is how well the system can be …
… period, solar collectors together with a pellet boiler have been compared to district heating and geothermal heating. This comparison concluded that district heating is the most economically viable option for the heating of the projected building. Despite a higher cost for the …
miljö- och systemkonsekvenser
District heating covers most of the residential areas and industries in the twoneighbouring Swedish municipalities Nyköping and Oxelösund. In Nyköping,Vattenfall AB Värme produces heat in a bio-fuelled CHP plant. In Oxelösund,waste heat and use of waste gases from the steel …
… of building a new CHP plant in another area of Enköping. The future demand on district heating and infrastructure at the new location have been projected. A new CHP plant has been dimensioned and economic analyses concerning the project have been made. Results show that the …
The aim of this thesis is to develop a new business model for district heating and 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 …
