Pereelamu energiakasutuse analüüs
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Kuupäev
2015
Kättesaadav alates
Autorid
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Abstrakt
Kodumajapidamised moodustavad 2010. aasta seisuga kogu maailma energiatarbimisest 27%,
mis on märkimisväärne osa. Et vähendada kodumajapidamistes tarbitava energiahulga
osakaalu, peaksid pereelamud olema energiasäästlikumad. Käesolevas töös uuriti erinevaid
energiatõhusaid ehitisi ning leiti, et tarbija seisukohast on parimaks variandiks
nullenergiahoone ning selle nõuete saavutamine on võimalik ka põhjamaistes tingimustes.
Antud töös vaadeldud pereelamu vastab küll hetkel kehtivatele energiatõhususe
miinimumnõuetele, kuid samas kulub elektriarvetele, võrreldes Eesti keskmise
majapidamisega, küllaltki suur summa. Töö tulemusena leiti, et energiasäästule tuleks pöörata
suuremat tähelepanu alustades standby tarbijate hulga vähendamisega ja praeguse
valguslahenduse vahetamisega LED-lampide vastu. Samuti leiti, et maasoojuspump oleks küll
suurepärane lahendus energiakulude vähendamiseks, kuid antud hoones ei ole suure töömahu
tõttu selle paigaldamine mõistlik. Hoone elektrienergiaga varustamiseks tuleks ehitada 8 kW
päikesepaneelide süsteem, mis tagaks hoone aastase elektrienergia tarbimise ning mille
tasuvusaeg oleks 15 aastat.
In 2010 households formed 27% of world energy consumption, which is a significant part. To reduce the amount of energy consumed, residential buildings should be more energy efficient. For this paper, different energy efficient buildings were studied and it was found out that the best option for the consumer is a zero-energy building, which requirements can be achieved even in Nordic conditions. The observed residential building corresponds to the current energy efficiency minimum requirements; however, compared to the average Estonian household, the electricity bills are quite significant. The result of study is that energy saving should be paid more attention to, starting from reducing the number of standby power consumers and replacing the current lightning solution with LED-lamps. It was also found out that geothermal heat pump would be a great solution for reducing energy costs but in this building it does not make sense because of the high workload due to the installation. For supplying electric power, an 8 kW solar cell system should be installed, which produces the annual electricity consumption and which payback period is 15 years.
In 2010 households formed 27% of world energy consumption, which is a significant part. To reduce the amount of energy consumed, residential buildings should be more energy efficient. For this paper, different energy efficient buildings were studied and it was found out that the best option for the consumer is a zero-energy building, which requirements can be achieved even in Nordic conditions. The observed residential building corresponds to the current energy efficiency minimum requirements; however, compared to the average Estonian household, the electricity bills are quite significant. The result of study is that energy saving should be paid more attention to, starting from reducing the number of standby power consumers and replacing the current lightning solution with LED-lamps. It was also found out that geothermal heat pump would be a great solution for reducing energy costs but in this building it does not make sense because of the high workload due to the installation. For supplying electric power, an 8 kW solar cell system should be installed, which produces the annual electricity consumption and which payback period is 15 years.
Kirjeldus
Märksõnad
elektrienergia, energiatarbimine, analüüs, elamud, hooned, energiatõhusus, energia säästmine, bakalaureusetööd