Indoor Environment Quality in Irish Energy Efficient Dwellings
•Download as PPTX, PDF•
1 like•128 views
Marie Coggins and James McGrath presents at the AIVC & SEAI ventilation symposium at the Energy Show.
More Related Content
What's hot
Similar to Indoor Environment Quality in Irish Energy Efficient Dwellings
Similar to Indoor Environment Quality in Irish Energy Efficient Dwellings (20)
More from SustainableEnergyAut
More from SustainableEnergyAut (20)
Recently uploaded
Recently uploaded (20)
Indoor Environment Quality in Irish Energy Efficient Dwellings
- 1. Marie Coggins and James McGrath School of Physics NUIG Indoor Environmental Quality in Irish Energy Efficient Dwellings
- 2. EU challenges – Built environment 40% of energy consumption36% CO2
- 4. Ireland - Deaths by principal causes 2017 ages 0 - 64
- 5. Chronic illnesses on the increase …… 4th highest prevalence of asthma in the world 3rd highest rate of COPD in Europe Respiratory disease 1/3 emergency hospital admission mortality rate 113.6 / 100,000 v’s EU 28 average 85.2 Lung cancer leading cause of cancer death in Ireland, 1 in 10 due to radon exposure
- 6. Specific Irish challenges – Radon 200 bequerel per cubic metre (Bq/m3). Irish homes 77 Bq/m3 v’s worldwide average of 39 Bq/m3 300 lung cancer cases /yr
- 7. Outdoor PM Dublinwinter 260 100 OIL 13% WOOD 10% PEAT 62% OOA 2% COAL 3% Inorg 10%
- 8. Energy Efficient home Comfort, mental health and wellbeing Quality ventilation is the key to achieving low energy healthy buildings Outdoor sources Indoor occupant sources Natural source
- 9. Research Projects at NUI Galway funded under the SEAI RD&D 2018 call Indoor Air, Ventilation and comfoRt in Irish Domestic dwellings post DEep Energy reNovations – ARDEN Assessment of VentilAtion effectiveness via a Longitudinal indoor environmental study in ‘A’ rated Irish Dwellings: VALIDate Funded by Sustainable Energy Authority of Ireland (SEAI) - 2018 National Energy Research, Development & Demonstration Funding Programme
- 10. Indoor Air, Ventilation and comfoRt in Irish Domestic dwellings pre & post DEep Energy reNovations – ARDEN Pre & post @ 12 and 18 months
- 11. Home Selection Criterion SEAI Deep Retrofit Team Criteria Detached, semi detached Floor area approx. 130m2 Cavity walls Non-smoking
- 12. Pollutants of interest 24 hour – 3 months monitoring period Particulate matter (PM2.5) Total volatile organic Compounds (TVOCs) Carbon Monoxide (CO) Carbon Dioxide (CO2) Formaldehyde Radon BTEX (benzene, toluene, ethylbenzene and xylene) Nitrogen Dioxide (NO2) Temperature and Humidity
- 13. Where will monitoring will take place within the home? 2/3 of our time at home living room and the bedroom
- 14. Contextual information Field visit During construction Building materials Refurbishments
- 15. Contextual information Time activity diaries before and after retrofit
- 16. 0.00 50.00 100.00 150.00 200.00 250.00 300.00 350.00 4:15:50PM 4:41:50PM 5:07:50PM 5:33:50PM 5:59:50PM 6:25:50PM 6:51:50PM 7:17:50PM 7:43:50PM 8:09:50PM 8:35:50PM 9:01:50PM 9:27:50PM 9:53:50PM 10:19:50PM 10:45:50PM 11:11:50PM 11:37:50PM 12:03:50AM 12:29:50AM 12:55:50AM 1:21:50AM 1:47:50AM 2:13:50AM 2:39:50AM 3:05:50AM 3:31:50AM 3:57:50AM 4:23:50AM 4:49:50AM 5:15:50AM 5:41:50AM 6:07:50AM 6:33:50AM 6:59:50AM 7:25:50AM 7:51:50AM 8:17:50AM 8:43:50AM 9:09:50AM 9:35:50AM 10:01:50AM 10:27:50AM 10:53:50AM 11:19:50AM 11:45:50AM 12:11:50PM 12:37:50PM 1:03:50PM 1:29:50PM 1:55:50PM 2:21:50PM 2:47:50PM 3:13:50PM 3:39:50PM 24 hour time series of PM2.5 (ug/m3) concentration – post shallow retrofit BER C1 candle cleaning candle cleaning candle cleaning window open sweeping Burning toast
- 18. VALIDate Project
- 19. The impact of user behaviour on the control of indoor air quality Determination of occupant expectations of highly energy efficient buildings in relation to indoor air quality Identification of pollutants of concern especially in highly energy efficient buildings. Rationale
- 20. Evaluate the temporal and spatial variations in indoor air pollutant concentrations Collect occupant feedback relating to thermal comfort, potential mould growth, knowledge of ventilation system and satisfaction Conduct computational simulations examining the energy and operational performance of the ventilation system with a particular emphasis on the control category Determine the effectiveness of ventilation systems and obtain important information surrounding the implementation of building regulations and national strategies The purpose of this study is to investigate the indoor environmental quality within homes that have ‘A’ rated Building Energy Rating (BER) certification
- 21. Measurements Thermal Comfort (Temperature and Humidity) CO2 Radon VOCs Air Pressure
- 22. A Longitudinal Study Monitor environmental quality over two heating season and a cooling season Provide an accurate representation of the effectiveness of whole-house ventilation Long-term measurements as opposed to snapshots of individual rooms and periods Questionnaires will be administered concurrently with the monitoring data to capture information on occupants awareness of their ventilation system
- 23. Methodology Low cost sensors 18 months Contextual information 4 rooms Kitchen Living room Master Bedroom Bathroom
- 27. Expected outputs ARDEN First Irish dataset on IAPs in domestic dwellings post deep retrofit Linked to contextual information & occupant activity diaries Identify pollutant and potential indoor sources Concentrations during occupied and unoccupied periods Insight into interaction between occupants and their interaction with different ‘exposure controls’ventilation systems provided as part of the retrofit VALIDate 300 million time-series data points - data over 2 heating seasons and a cooling season Identifying the temporal and spatial variations in indoor air pollutant concentrations Assessment of the effectiveness of the ventilation system Conduct computational simulations examining the energy and operational performance of the ventilation system with a particular emphasis on the control category
- 28. Acknowledgements Indoor Air, Ventilation and comfoRt in Irish Domestic dwellings post DEep Energy reNovations – ARDEN Marie Coggins (NUIG), Andrew Apsley (NUIG), Miriam Byrne (NUIG), Hilary Cowie (IOM), Stephanie Long (EPA) Assessment of VentilAtion effectiveness via a Longitudinal indoor environmental study in ‘A’ rated Irish Dwellings: VALIDate Miriam Byrne (NUIG), James McGrath (NUIG), Alison Connolly, James O’Donnell (UCD) Funded by Sustainable Energy Authority of Ireland (SEAI) - 2018 National Energy Research, Development & Demonstration Funding Programme
- 29. Thank You
- 30. Deep Energy Renovation Upgrades the energy efficiency of a home to an A-rated energy efficient home. The renovation takes a holistic approach to this by considering multiple energy efficient measures together. Wall insulation, attic insulation Replacing windows and doors Air tightness and ventilation (DCV/MVHR)
Editor's Notes
- Meeting our CO2 reduction targets is clearly a Significant challenge facing society today Buildings are responsible for approximately 40% of energy consumption and 36% of CO2 emissions in the EU. Currently, about 35% of the EU's buildings are over 50 years old and almost 75% of the building stock is energy inefficient, while only 0.4-1.2% (depending on the country) of the building stock is renovated each year. Therefore, more renovation of existing buildings has the potential to lead to significant energy savings – potentially reducing the EU’s total energy consumption by 5-6% and lowering CO2 emissions by about 5%.
- Where are we starting from …. If we look at all cause mortality to the age of 65 in Ireland, CVD and respiratory = 1/3 of deaths in Ireland If we look at all age CVD is responsible for an even greater proportion
- The rate of chronic illness is also on the rise Radon is leading cause of lung cancer in non smokers
- Here in Ireland we have specific challenges with certain pollutants found indoors Average concentration indoors in Irish homes Radon is leading cause of lung cancer in non smokers 9% of population living in homes above reference level
- We also have a challenge in relation to Outdoor PM2.5 concentrations, colleagues measure peak conc of 300 ug/m3 on still winter evenings, 24 hr average concentrations often almost double the WHO outdoor limit of 25 ug/m3, largely due residential solid fuel burning
- While improving the energy performance of your home has clear benefits on occupant comfort, health and wellbeing, Ventilation is key to achieving good air quality indoors. But we nee to understand potential outdoor sources ind
- SEAI recognise this =NB linkage – energy and health
- Arden has started in feb and we are currently recruiting homes and field work will start this week or next
- Tsi SidePak Am510 (Measuring PM2.5)
- 61% of our time at home 36% time sleeping
- Interaction with ventilation system
- Interaction with ventilation system
- SEAI recognise this =NB linkage