117 uppsatser · sida 1 av 8
En studie i produktionsslag
The real estate company Ihus is facing an expansion of its comfort cooling in Noatun,Uppsala, to provide the buildings in the block with cooling. The buildings in Noatunare mainly used for office premises, where the requirements for an accepted indoorclimate is great. However …
Kartläggning av nuvarande fjärrkylasystem och framtida utvecklingsmöjligheter
Arlanda airport is Sweden’s largest airport. The demand for 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 …
… premises at Scania. During the summer months an increased demand for cooling occurs, leading to increased ventilation and a peak in district cooling system usage. Sorptive cooling is a technology where the supplied air is cooled by applying external heat. This technique involves …
… providing the Stockholmers with meat products. This area has a great need for cooling to supply large cold storages. To facilitate this, a central cooling system has been built, supplying the area with effective and safe cooling. The aim of this master thesis study is to give …
… system which is to be established to provide the building with heating and cooling. The consulting firm Umeå Projekt Team has therefore been asked to investigate the possibilities to invest in geothermal- heating and cooling. If the investigation of a geothermal heating- and …
En analys av energibesparande åtgärder samt uppvärmnings- och kylsystems driftkostnader och koldioxidutsläpp
… in the company were compared with other alternative heating systems including cooling of the premises in following combinations: Ground source heat pump for heating and coolingDistrict heating and absorption coolingDistrict heating and low temperate surface water cooling Energy …
… plants. One way to save energy in a district heating system is to increasing cooling to the return temperature. This leads to less power needed to drive the distribution pumps, and that more energy could be extracted from the same amount of fuel by an improved flue gas …
… important mechanism that many plants have, to cope with high temperatures, is cooling through transpiration. During transpiration, stomata open and release water vapor. Water molecules use heat energy from the leaf to convert into gas, thereby cooling the leaf. The aim of this …
A Swedish electronics company wants to make the cooling of one of their electronic components more efficient. They propose that a retrofit liquid cooler is the way to achieve this goal. The current air cooling has high energy cost due to the high amount of power needed to power …
… Undersökningens syfte är att visa på om respondenterna utsatts för ”cooling down” av sina studie- och yrkesvägledare. Den har genomförts medelst nio intervjuer med unga rörelsehindrade personer. Intervjuerna har analyserats med två kvalitativa analysmetoder, meningskoncentrering …
This thesis consider alternatives for heating and cooling planned office buildings at Arlanda airport. The thesis is divided into three parts where the third part is a shorter synthesis of the two first. In the first part the energy demands of the buildings are modelled in a …
In recent years, existing solutions for cooling personal computer CPUs have been supplemented by a new product category, factory sealed water cooling loops. These systems, consisting of a water block with an integrated pump, a fan and a radiator, perform well compared to the air …
… The inn at Utö is included in the project; where replacing or improving the cooling system for the cold storages is desired in order to reduce the use of energy.This report examines the possibility of changing or improving the current cooling system along with the potential …
Studie om LCC som verktyg att utva?rdera geoenergianla?ggningar
… for comparing the total cost of different alternatives, such as heating and cooling methods. Common heating and cooling methods in Sweden are geothermal energy, district heating and district cooling. This report aims to evaluate how different heating and cooling methods differ …
… of several subsystems in order to work properly, among other, systems for cooling and lubrication. Combustion engines are in need of a cooling system that reduces the heat developed during the combustion. In general, two main types of cooling systems are employed; either air …
