Energy Efficiency – Indoor Air Quality Dilemma in Educational Buildings: A Possible Solution
The energy efficiency – indoor air quality dilemma is well known and the main drawback to operate the mechanical ventilation is electricity costs as concluded from previous studies. Educational buildings are one of the places where future taxpayers spend a lot of time. This paper aims to study an al...
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doaj-9ee6a0573d1b47088dd71e87232c07802021-09-05T14:01:32ZengSciendoEnvironmental and Climate Technologies2255-88372020-01-0124135736710.2478/rtuect-2020-0020rtuect-2020-0020Energy Efficiency – Indoor Air Quality Dilemma in Educational Buildings: A Possible SolutionAsere Liva0Blumberga Andra1Institute of Energy Systems and Environment, Riga Technical University, Azenes iela 12/1, Riga, LV–1048, LatviaInstitute of Energy Systems and Environment, Riga Technical University, Azenes iela 12/1, Riga, LV–1048, LatviaThe energy efficiency – indoor air quality dilemma is well known and the main drawback to operate the mechanical ventilation is electricity costs as concluded from previous studies. Educational buildings are one of the places where future taxpayers spend a lot of time. This paper aims to study an alternative solution on how to reduce energy efficiency – indoor air quality dilemma in educational buildings by adopting systems that use renewable energy sources. A typical education building in Latvia is taken as a case study by changing it from a consumer to prosumer. This building type has a specific electricity usage profile that makes the choice of photovoltaics (PV) power quite challenging so the various power options have been analysed and used for an electricity solution. Also, the more decentralised preference is chosen – disconnect from a public heating provider and using a local system with a pellet boiler. Educational buildings using PV can reduce the electricity tariff, but the payback periods are still not very satisfactory without subsidies. The average electricity tariff per month varies between scenarios and the best one is for the scenario with 30 kW installed power. The educational building partly using 16 kW PV system reduces not only its bill for electricity but also reduces CO2 emissions by around 36 tons. The education buildings as energy prosumers using renewable energy sources are reducing GHG emissions by having high indoor air quality.https://doi.org/10.2478/rtuect-2020-0020educational buildingsenergy efficiencyindoor air qualityprosumersrenewable energy sourcesghg emissions |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Asere Liva Blumberga Andra |
spellingShingle |
Asere Liva Blumberga Andra Energy Efficiency – Indoor Air Quality Dilemma in Educational Buildings: A Possible Solution Environmental and Climate Technologies educational buildings energy efficiency indoor air quality prosumers renewable energy sources ghg emissions |
author_facet |
Asere Liva Blumberga Andra |
author_sort |
Asere Liva |
title |
Energy Efficiency – Indoor Air Quality Dilemma in Educational Buildings: A Possible Solution |
title_short |
Energy Efficiency – Indoor Air Quality Dilemma in Educational Buildings: A Possible Solution |
title_full |
Energy Efficiency – Indoor Air Quality Dilemma in Educational Buildings: A Possible Solution |
title_fullStr |
Energy Efficiency – Indoor Air Quality Dilemma in Educational Buildings: A Possible Solution |
title_full_unstemmed |
Energy Efficiency – Indoor Air Quality Dilemma in Educational Buildings: A Possible Solution |
title_sort |
energy efficiency – indoor air quality dilemma in educational buildings: a possible solution |
publisher |
Sciendo |
series |
Environmental and Climate Technologies |
issn |
2255-8837 |
publishDate |
2020-01-01 |
description |
The energy efficiency – indoor air quality dilemma is well known and the main drawback to operate the mechanical ventilation is electricity costs as concluded from previous studies. Educational buildings are one of the places where future taxpayers spend a lot of time. This paper aims to study an alternative solution on how to reduce energy efficiency – indoor air quality dilemma in educational buildings by adopting systems that use renewable energy sources. A typical education building in Latvia is taken as a case study by changing it from a consumer to prosumer. This building type has a specific electricity usage profile that makes the choice of photovoltaics (PV) power quite challenging so the various power options have been analysed and used for an electricity solution. Also, the more decentralised preference is chosen – disconnect from a public heating provider and using a local system with a pellet boiler. Educational buildings using PV can reduce the electricity tariff, but the payback periods are still not very satisfactory without subsidies. The average electricity tariff per month varies between scenarios and the best one is for the scenario with 30 kW installed power. The educational building partly using 16 kW PV system reduces not only its bill for electricity but also reduces CO2 emissions by around 36 tons. The education buildings as energy prosumers using renewable energy sources are reducing GHG emissions by having high indoor air quality. |
topic |
educational buildings energy efficiency indoor air quality prosumers renewable energy sources ghg emissions |
url |
https://doi.org/10.2478/rtuect-2020-0020 |
work_keys_str_mv |
AT asereliva energyefficiencyindoorairqualitydilemmaineducationalbuildingsapossiblesolution AT blumbergaandra energyefficiencyindoorairqualitydilemmaineducationalbuildingsapossiblesolution |
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1717810072494538752 |