110 uppsatser · sida 3 av 8
… [kg CO2-eq./ functional unit].The purpose of this thesis is to examine how electricity, district heating, hotels, taxis, food and materials affect the climate and how emission factors for these areas can be calculated.This was done by reviewing and comparing different studies …
… to the biogas plant. The objective of this study was therefore to make an electricity and heat survey of the biogas plant, a detailed study of the heat consumption in the sanitation step and also a comparison of energy consumption with the present sanitation method and an …
… Because of a rapid technologic change and increased costs of production of electricity, the demand to develop effective methods for energy efficiency industries have grown.The electricity-intensive industries, such as plastic industry, the demand to reduce energy consumption has …
… use in the biogas production. The energy survey was divided into two parts: electricity and heat. Each part was treated separately and with somewhat different approach. To estimate the electricity usage during the projcet the rated power of each selected unit operation was noted …
… use in the biogas production. The energy survey was divided into two parts: electricity and heat. Each part was treated separately and with somewhat different approach. To estimate the electricity usage during the projcet the rated power of each selected unit operation was noted …
… profitable, while the NPV is a more accurate method. CHP plants produce both electricity and heat for consumption. They have a high efficiency between 80-90%. Previous studies show that Sweden is in a situation where they need to install more CHP to expand the district heating …
The study aims to investigate the feasibility of small-scale electricity production with solar electricity systems, also known as PV (photovoltaic) systems, in Australia. Due to the global warming, sustainable energy has in recent years become an increasingly important issue …
… main areas is made. Primarily the photovoltaic system is sized based on the electricity consumption in the buildings. Furthermore an assessment is made whether or not the photovoltaic system is a profitable investment. Lastly a comparison between the output of the analysis and …
En kvantitativ studie gällande hållbara uppvärmningsalternativ på en skärgårdsö
… cottages used for overnighting. The cottages now run solely on direct electricity, both for heating and hot water. The purpose of this report is to survey the current energy use of the four cottages with respect to the environmental effect and to propose alternative heating …
Electricity production from renewable energy resources such as wind energy and photovoltaics is variable. Integration of these intermittent resources into the electricity system leads to new challenges in how to manage imbalance between supply and demand on the grid. One way to …
-Ur ett tekniskt och ekonomiskt perspektiv
… property-investments. The unusually cold winters along with extreme prices of electricity in Sweden in recent years has also contributed to increased interest in energy-efficient buildings. The process of developing a modern family home in Kiruna, Sweden is presented the first …
… the last few years, there has been a lot of debate regarding the price of electricity on the Swedish market. According to a recent survey from Sifo, a non-bias governmental institute for consumer research and testing, the price of electricity is what worries Swedish households …
… hall, laboratories and storage areas. The energy audit showed that the electricity use is far greater in hus A, compared to the an average office and administration building. This is mainly due to production processes. A breakdown of the highest electricity consumers are …
… of production of blocks of flats at the building site. The main part of the electricity that is used during the production of apartment buildings goes into the heating of portacabins and illumination of the building during the construction phase. These together use about 70 % of …
en studie av torktumlare med varm- respektive kallvattenanslutning
… million tumble dryers are sold in Europe each year and 20 % of the residential electricity consumption in Sweden is used drying and washing clothes. Tumble dryers are also utilized in the industrial sector, but industrial dryers are not considered in this study.Increasing energy …
