1 129 uppsatser · sida 44 av 60
Utveckling av värmeväxlare
… produce aircraft heaters whose origin is early 1970s which follows a high inefficiency in terms of energy consumption and size. The aircraft heater, which is sold worldwide, serves its purpose for customer satisfaction and has done so ever since it was developed in the 70s …
… where household electricity is reduced by 40%. The result of selected energy efficiency measures shows a reduction of the specific energy demand by 70 % compared to the BBR's requirements and 50 % compared to the reference house. In addition the environmental impact of the …
Hur ett befintligt fjärrvärmesystem kan bli mer effektivt
Fjärrvärmen utgör idag ungefär 12 % (48 TWh) av Sveriges totala energianvändning. Starka argument att använda fjärrvärme för att tillgodose bostäders och lokalers värmebehov är möjligheten att använda olika bränslen av skiftande pris och kvalitet, den goda verkningsgraden en …
En analys av energibesparande åtgärder samt uppvärmnings- och kylsystems driftkostnader och koldioxidutsläpp
… company has been examined in this work in order to find areas for energy efficiency improvement. The combined oil and electricity heating in the company were compared with other alternative heating systems including cooling of the premises in following combinations: Ground …
… Simulations were executed in the energy simulation program BV2 testing the efficiency of a mechanical ventilation system with fans dispatching the used stale air with heat recovery through the geo-thermal heat pump in comparison to a HRV-system. As BV2 can’t simulate heat pumps …
en fallstudie
… Simulations were executed in the energy simulation program BV2 testing the efficiency of a mechanical ventilation system with fans dispatching the used stale air with heat recovery through the geo-thermal heat pump in comparison to a HRV-system. As BV2 can’t simulate heat pumps …
en analys utifrån informationsdesignsprinciper
… uppfyller några kvalitativa komponenter som utgör användbarhet; learnability, efficiency, memorability, errors och satisfaction. Informationsdesign ger oss verktygen för att uppfylla dessa krav. Att formge efter gestaltlagar, organisera med tydlig struktur och genomarbetad …
<em>Hur påverkas hyresgästerna av </em><em> en ombyggnad </em>
… of energy in buildings. This calls for radical measures to implement energy efficiency of existing assistance particularly in the assistance that is now facing reconstruction. Most of the apartments that are in need of reconstruction is leased and residents. No matter what kind …
… and shipping- and security companies due to the increasing requirements for efficiency. The purpose with this graduation thesis is to find out which systems that is suitable to use while developing cost-effective software for positioning and to produce a prototype for such …
Beräkningar intervjuer och analys av energikraven i Boverkets Byggregler
… has gradually changed the regulatory framework in order to improve the energy efficiency for new buildings. Boverket issues the Swedish building code BBR which includes energy requirements for buildings. The new BBR 16 was published after only about 6 month after the previous …
Projektering för ett träffsäkert och energieffektivt slutresultat
Byggnadssektorn uppskattas idag stå för närmare 40 % av vår totala energiförbrukning, varav nästan 60 % utgörs av uppvärmning och varmvatten. Från myndigheter såväl som allmänheten börjar högre krav ställas på energihushållning i vårt byggnadsbestånd. I media duggar …
… of the processor and bit rate of the Ethernet controller provides the highest efficiency gain at different load levels. This work also investigates whether implementation of dynamic frequency scaling on a new processor is a complex task or not. Implementations in the Linux …
en potentialstudie i Biogas Öst-regionen
… in the region. This level can be maintained for another ten years if the efficiency of gas extraction is improved. The annual production will decrease with time since landfills aren’t allowed to receive more organic waste. Landfill gas is hence a large but not lasting source of …
En kvalitativ studie av SVT Play med fokus på användbarhet för barn i åldern 10-12 år
… time-consuming activities such as loading times etc. which has to do with the efficiency of the system. In the analysis of our empirical data we distinguished four factors of importance when developing interactive products. The system should help the user in terms of navigation …
… see similarities in the flow dynamics between modeled and measured data. The efficiency coefficient has been calculated to correspond to the mean of the measured values for the whole simulation period. With an automated calibration process the model should be able to perform …
