Päikesekollektor eramu energiavarustuses
Laen...
Kuupäev
2017
Kättesaadav alates
Autorid
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Eesti Maaülikool
Abstrakt
Käesoleva uurimustöö eesmärgiks on uurida kuidas mõjutavad klimaatilised tegurid
päikesekollektori tootlikust ja kui mõistlik on kasutada tahkeküttekatla kõrval lisaküttena
päikeseenergiat. Samuti on analüüsitud millist mõju avaldab elektritarbimisele
päikesekollektori lisamine energiavarustusse.
Soojusenergia tootlikkust mõõdeti 2015. aasta oktoobrist 2017. aasta aprillini. Mõõtmised
toimusid Põlvamaal, Partsi külas asuvas eramus, kuhu on küttesüsteemi lisatud 2
lamedapinnalist päikesepaneeli. Andmetena on kasutatud toodetud soojusenergia kogust
(kWh), kuude keskmiseid õhutemperatuure (oC), kuude summaarseid päikesepaiste tunde
(h) ja eramu elektritarbimist kuude kaupa (kWh). Kogutud andmeid on analüüsitud ja
võrreldus kasutades programmis Microsoft Excel.
Uurimusest selgus, et sooja vee kollektori tootlikkus on tugevas seoses kuu keskmise
temperatuuriga. Samuti mõjutab suuresti tootlikust temperatuuri ja päikesepaiste seos.
Kõige tugevamalt aga mõjutab tootlikust kuu keskmised päikesepaiste tunnid.
Majanduslikes arvutustes selgus, et eramu energiavarustusse lisatud päikesekütte süsteemi
tasuvusaeg ulatub 30 aastani. Sellest saab järeldada, et Lõuna - Eestis tahkeküttekatla
kõrval lisaküttena päikeseenergia kasutamise mõistlikus on kaheldav.
Elektrienergia tarbimist uurides selgus, et ei ole võimalik tuvastada päikesekollektori mõju
tarbimisele. Arvesse on võetud tarbimist enne ja pärast kollektori lisamist
energiavarustusse.
The aim of this research is to investigate how climatic factors are affecting the productivity of the solar collector and if it is reasonable to use additional heating by solar energy next to solid fuel boiler. It also analyzed the impact of solar collectors to electricity consumption. Thermal energy productivity was measured between october 2015 and april 2017. Measurements took place in Põlva county at a private house where two flat plate solar water heater collectors have been installed. Data that has been used are the energy produced by the sun (kWh), monthly average air temperatures (oC), sum of the total monthly sunshine hours (h), and residental electricity consumption by months (kWh). The collected data is analysed and compared by using Microsoft Excel. The study revealed that the hot water collector productivity is highly correlated with the monthly average temperature. Great effect to productivity is the correlation between sunshine and air temperature. But the highest effect on the productivity has the average monthly sunshine hours. Economic calculations showed that the collector payback period reaches up to 30 years. This shows that it is not reasonable to add solar water heater to solid fuel boiler system Adding the solar water heater to such house energy supply does not show any changes in electricity consumption.
The aim of this research is to investigate how climatic factors are affecting the productivity of the solar collector and if it is reasonable to use additional heating by solar energy next to solid fuel boiler. It also analyzed the impact of solar collectors to electricity consumption. Thermal energy productivity was measured between october 2015 and april 2017. Measurements took place in Põlva county at a private house where two flat plate solar water heater collectors have been installed. Data that has been used are the energy produced by the sun (kWh), monthly average air temperatures (oC), sum of the total monthly sunshine hours (h), and residental electricity consumption by months (kWh). The collected data is analysed and compared by using Microsoft Excel. The study revealed that the hot water collector productivity is highly correlated with the monthly average temperature. Great effect to productivity is the correlation between sunshine and air temperature. But the highest effect on the productivity has the average monthly sunshine hours. Economic calculations showed that the collector payback period reaches up to 30 years. This shows that it is not reasonable to add solar water heater to solid fuel boiler system Adding the solar water heater to such house energy supply does not show any changes in electricity consumption.
Kirjeldus
Bakalaureusetöö
Loodusvarade kasutamine ja kaitse õppekaval
Märksõnad
bakalaureusetööd, taastuvenergia, päikeseküte, soojusenergia, päikesekollektorid