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Bostadsrättsföreningen Bogården
This diploma work covers an investigation over the heat - and hot water systems of the tenant-owner's association, Bogården. The heat - and hot water needs of Bogården are satisfied by both district heating as well as three heat pumps. Implemented investigation shows that the …
En studie om solvärme med säsongslagring
A home for elderly is planed to be built at Zakrisdal, Karlstad, Sweden. The heat source for the building was at the time not determined. In order by the local government of Karlstad this report is meant to examine if the need of heat could be provided only by solar heat …
with proposals for energy technological actions based on Scania’s building 64
The report comprises two separate parts: part 1: Temperature needs for district heating in the paint shop for axles in building 210part 2: Energy and low temperature waste heat solutions in heating and cooling systems for building 64 with surroundings The paint shop for axles in …
Studie av Hållsta skola i Eskilstuna
… the goal for schools was to have a maximum energy use of 118 kWh/m2year for heating and hot water. The school ”Hållsta skola”, just south of Eskilstuna, exceeds the limit since it used 270 kWh in 2008. The school is heated by oil burners, which is not desirable since oil is a …
… climate in a greenhouse. The computer model is built on the physical theory of heat exchange that occur in a greenhouse, such as radiation and convective heat exchange. The model also includes the heat storage that is active in a greenhouse. The computer model is used to …
teknik och investeringsutrymme
… materials take advantage of these assets locally. By combining production of heat withpower production at the farm it may be possible to not only reduce the direct use of fossil fuel forheating but also reduce energy costs.The purpose was to simulate different cases of using a …
… changes and moisture fluctuations in the air. Oneof the steps is to add heat during the cooling process in order to reduce the relativehumidity of the exhaust air. The air passes thru an adsorptions rotor which thenabsorbs moisture from the supply air. This results in the …
Jämförelse mellan tre utvecklade versioner av ett vattenvärmedrivet torkskåp
… plants. These contribute to high carbon emissions when only about 1/3 of the heat generate electricity and the remaining 2/3 of the heat cools off. Combined heat and power plants (CHP) have high efficiency because they use the residual heat for domestic heating. The CHP plant …
Förstudie av förutsättningar för, - och lönsamhet med, solfångare för att värma terapibadet
This report treats whether it is viable to invest in solar heating to heat the therapy pool at Östersunds Rehabcentrum. The rehab center is owned by the county council of Jämtland and is located on Solliden in Östersund city. The solar heating where supposed to be a complement …
… that is used to maintain a satisfactory indoor climate. Recovery of excess heat and excess cold is a solution that the European Commission think has the biggest potential to reduce the total energy consumption. The most common system used for energy recovery is air to air heat …
The district heating load is seasonally 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 …
Thermia Värme AB is one of the market leading manufactures of heat pumps. In order to maintain this position, the company wants to improve the vibration characteristics of their products. The aim of this thesis is to develop product design changes that lead to a reduction of …
… is also studied and discussed in the report. The VARS consists of four heat exchangers that rejects/absorbs heat to/from external sources; the evaporator, generator, condenser and absorber. There are two internal heat exchangers used to increase the performance of the VARS and …
en teknisk och ekonomisk utredning
Göteborg Energi has a surplus of district heating during spring, summer and fall. The heat surplus is due to a constant production of waste heat from oil refineries and heat from waste incineration over the year. It would be desirable to increase the demand for heat and the …
… has high energy cost due to the high amount of power needed to power fans and heat exchangers. Using high volumes of air for cooling also leads to noise pollution. The conversion from air to liquid cooling would possibly make the operation of the electronics more cost efficient …
