Low Energy Cooling Systems Based On The Cold Energy Sources Of The Ground : Preliminary study
Amineva, Evgenia (2009)
Amineva, Evgenia
Mikkelin ammattikorkeakoulu
2009
All rights reserved
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:amk-2011053010283
https://urn.fi/URN:NBN:fi:amk-2011053010283
Tiivistelmä
Nowadays a lot of attention is paid to low energy systems all over the world as includes low energy cooling system. In many places on the earth the building is necessary for some additional cooling. A lot of energy to cool the whole building was required. Therefore alternative systems of cooling of a building, for example use of cold energy sources of the ground have started to be developed. Ground is a very good cool storage because the depth of the earth in a warm season is usually colder than on a surface, also there are a lot of ground waters in the earth which usually have got low temperature. On the earth surface there are many the rivers, lakes and the seas which water also can be used for cooling of buildings.
Nowadays engineers are using quite extensively cold energy sources of the ground. There are four types of cooling systems based on these sources: ground coupled air system, sea / lake / river cooling, aquifer cooling, ground cooling with heat pump in reversible mode
All these systems are quite new. The first system was built about twenty years ago. In my bachelor thesis I have to review all these systems and show their advantages over typical cooling systems.
Capital cost of such systems can be bigger than conventional system in any case because besides equipment installation in the building, these systems need a lot of earthworks and research works. But the annual operating cost of systems which based on the cold energy sources of the ground will be about two times less than operating cost of conventional system. Also advance cooling systems are much more ecological than conventional cooling systems. Unfortunately it’s impossible to use all low energy cooling systems based on the cold energy sources of the ground in hot climate and in temporary buildings.
But in spite of disadvantages low energy systems began more popular from year to year. Such systems compare with low energy heating systems, lighting and good building envelope can help to make very low energy buildings.
Nowadays engineers are using quite extensively cold energy sources of the ground. There are four types of cooling systems based on these sources: ground coupled air system, sea / lake / river cooling, aquifer cooling, ground cooling with heat pump in reversible mode
All these systems are quite new. The first system was built about twenty years ago. In my bachelor thesis I have to review all these systems and show their advantages over typical cooling systems.
Capital cost of such systems can be bigger than conventional system in any case because besides equipment installation in the building, these systems need a lot of earthworks and research works. But the annual operating cost of systems which based on the cold energy sources of the ground will be about two times less than operating cost of conventional system. Also advance cooling systems are much more ecological than conventional cooling systems. Unfortunately it’s impossible to use all low energy cooling systems based on the cold energy sources of the ground in hot climate and in temporary buildings.
But in spite of disadvantages low energy systems began more popular from year to year. Such systems compare with low energy heating systems, lighting and good building envelope can help to make very low energy buildings.