Difference between revisions of "Blower Door Test"
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− | [[Image:Initial Blower Door Test.JPG|right| | + | [[Image:Initial Blower Door Test.JPG|right|500px]] |
− | <small>return to [[Sustainability Labs]]</small> <br /> | + | <small>return to [[Sustainability Labs]]<br/> |
+ | return to [[Labs Highlights]]</small> <br /> | ||
<small>return to [[Current Labs Summary]]</small> | <small>return to [[Current Labs Summary]]</small> | ||
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---- | ---- | ||
− | ==== Goals of | + | ==== Goals of Experiment ==== |
* Determine if we met our air leakage design criteria of 0.1 AC/hr leakage rate. | * Determine if we met our air leakage design criteria of 0.1 AC/hr leakage rate. | ||
* Verify general effectiveness of sealing of building envelope with construction now complete. | * Verify general effectiveness of sealing of building envelope with construction now complete. | ||
* Measure potential energy and comfort impact of a window being left cracked open to try to inform occupants. | * Measure potential energy and comfort impact of a window being left cracked open to try to inform occupants. | ||
− | ==== Decisions to be made from | + | ==== Decisions to be made from Experiment ==== |
* Determine if any additional sealing or gasketing is required. | * Determine if any additional sealing or gasketing is required. | ||
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==== Participants ==== | ==== Participants ==== | ||
− | * Byczinski, Kenco - Perform test | + | * Ken Byczinski, Kenco - Perform test |
− | * Catey - Labs POC | + | * Laurie Catey - Labs POC |
* Library (USL) - assist with media (Flip, camera) | * Library (USL) - assist with media (Flip, camera) | ||
* Interested participants: | * Interested participants: | ||
− | + | ** Peggy Brennan - videographer, photos | |
− | ** Peggy - videographer | + | ** Kirsten Lyons - assist, record data (not on Wednesday) |
− | ** Kirsten - assist, record data (not on Wednesday) | + | ** Michael Paciero - remote interface |
− | ** Michael Paciero | + | |
==== Collaboration ==== | ==== Collaboration ==== | ||
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=== References === | === References === | ||
---- | ---- | ||
− | + | * [https://docs.google.com/spreadsheet/ccc?key=0AtbEzr-Y2qtadFpvQ2FNcmlJNkJid18taFVYRkNDMlE&authkey=CO2rm5MB&hl=en_US&authkey=CO2rm5MB Blower Door Test Workbook] | |
* [https://docs.google.com/spreadsheet/ccc?key=0AtbEzr-Y2qtadEpfLWZTUTNENkMyVTNGYUN2aGFZLVE&hl=en_US Experiment Tracker] - summary of all experiments & experiment project management | * [https://docs.google.com/spreadsheet/ccc?key=0AtbEzr-Y2qtadEpfLWZTUTNENkMyVTNGYUN2aGFZLVE&hl=en_US Experiment Tracker] - summary of all experiments & experiment project management | ||
− | |||
=== Questions === | === Questions === | ||
− | * Is there other test equipment that might handle the size of our building? Could multiple test apparatus achieve our pressure difference? | + | * Is there other test equipment that might handle the size of our building? (Centrifugal fan or using our equipment) |
+ | * Could multiple test apparatus achieve our pressure difference? (Yes; Ken will bring two sets of test equipment with him) | ||
=== TO DO === | === TO DO === | ||
− | * Plan / Do / | + | * ''Plan / Do / Study / Act / Repeat'' |
* Research blower door testing online to find if any other conditions/process requirements. | * Research blower door testing online to find if any other conditions/process requirements. | ||
− | ** [[http://nachi.org/blower-door- | + | ** [http://www.infiltec.com/inf-btst.htm Outline of Blower Door Test]] |
− | * Calculate the CFM for Annex and Historic Bldg corresponding to 0.1 AC/hr | + | ** [http://www.bpi.org/Web%20Download/BPI%20Standards/Building%20Analyst%20Professional_2-28-05nNC-newCO.pdf BPI Calculations & Factors] |
− | * Get small scale floor plans to note results and observations | + | ** [http://en.wikipedia.org/wiki/Blower_door Blower Door Basics] |
− | * Review experiment process - group, Ken | + | ** [http://www.nachi.org/blower-door-test.htm Blower Door Info] - temperature, barometric pressure affect test - correction factor |
− | * Confirm October 6, 2011 12-2 p.m. okay with Ken | + | * Calculate the CFM for Annex and Historic Bldg corresponding to 0.1 AC/hr - Kirsten |
+ | * Get small scale floor plans to note results and observations - Kirsten | ||
+ | * Review experiment process - group, Ken - DONE | ||
+ | * Confirm October 6, 2011 12-2 p.m. okay with Ken - CONFIRMED. DONE | ||
Latest revision as of 15:14, 7 November 2011
return to Sustainability Labs
return to Labs Highlights
return to Current Labs Summary
Blower Door Test Experiment
Goals of Experiment
- Determine if we met our air leakage design criteria of 0.1 AC/hr leakage rate.
- Verify general effectiveness of sealing of building envelope with construction now complete.
- Measure potential energy and comfort impact of a window being left cracked open to try to inform occupants.
Decisions to be made from Experiment
- Determine if any additional sealing or gasketing is required.
Expected Outcomes
- Determine a value for our overall building leakage (or at least observe leakage with smoke tracer if unable to measure).
- Provide educational information to building occupants on the effects of leaving windows open.
Methodology
General
- No occupants opening/closing doors/windows in building (SEND OUT NOTICE AHEAD OF TIME FOR TEST).
- Seal up any openings between Annex and Historic Building (CHECK WITH KEN; Kirsten has visquine).
- Seal up damper openings in exterior wall with visquine because pressure measurement so low.
- Seal openings for conduits/wires/pipes in wall between Annex and Historic.
- Seal ductwork openings between Annex and Historic.
- Make sure basement is segregated from rest of building; area is excluded from test.
- Start out sealing gaps in doors and windows. Incrementally test envelope construction, door/window gaps, then open window to observe impact.
- Prefer to perform test on low/no wind day (CHECK WEATHER).
- Building air systems off initially and sealed closed at outside envelope.
- Consider putting differential pressure meters in multiple locations (use blower door test apparatus meter, digital micro-manometer, magnehelic gauge). Calibrate meters together first to check for differences.
- Use building exhaust system as alternate approach if pressure differential from testing apparatus inadequate.
Process Measurements
- Record outside conditions; temp/RH/barometric pressure/wind speed & direction/weather conditions
- Record inside conditions; temp/RH
- Building pressure differential (Kenco equipment; LL Catey meters).
- Building leakage pressure (Kenco equipment then convert to CFM; otherwise bldg. equip CFM with smoke tracer).
- Use smoke tracer to check for leakage locations.
- Velocity/CFM through slightly open window with building under 0.02" w.c. negative
Resources Required
- Equipment for Test
- Blower Door Test Apparatus - Kenco
- TSI Digital Micro-Manometer - LL Catey
- Magnehelic Gauge - LL Catey
- Green Garage DDC Online through Laptop - LL Catey
- Media to Document
- Measurement recording: test form (LLC check with KEN or create in Experiment Workbook)
- Video - Flip camera USL
- Photos - Canon camera USL
Participants
- Ken Byczinski, Kenco - Perform test
- Laurie Catey - Labs POC
- Library (USL) - assist with media (Flip, camera)
- Interested participants:
- Peggy Brennan - videographer, photos
- Kirsten Lyons - assist, record data (not on Wednesday)
- Michael Paciero - remote interface
Collaboration
- USL - media
- Kenco - conducting testing, equipment
- LL Catey Engineering Services - equipment
Help Wanted
- Open to observers
Scheduling & Sequencing
- Sequencing/Prerequisites
- No occupants opening/closing doors or windows during test.
- Ventilation systems must be balanced.
- Must have control of ventilation systems.
- Openings/gaps sealed ahead of time.
- Scheduling
- Experiment design - 9/23/2011 - REVIEW
- Conduct field testing - 10/6/2011 between 12 p.m. - 2 p.m. (prep starting at 11:30 a.m.)
References
- Blower Door Test Workbook
- Experiment Tracker - summary of all experiments & experiment project management
Questions
- Is there other test equipment that might handle the size of our building? (Centrifugal fan or using our equipment)
- Could multiple test apparatus achieve our pressure difference? (Yes; Ken will bring two sets of test equipment with him)
TO DO
- Plan / Do / Study / Act / Repeat
- Research blower door testing online to find if any other conditions/process requirements.
- Outline of Blower Door Test]
- BPI Calculations & Factors
- Blower Door Basics
- Blower Door Info - temperature, barometric pressure affect test - correction factor
- Calculate the CFM for Annex and Historic Bldg corresponding to 0.1 AC/hr - Kirsten
- Get small scale floor plans to note results and observations - Kirsten
- Review experiment process - group, Ken - DONE
- Confirm October 6, 2011 12-2 p.m. okay with Ken - CONFIRMED. DONE