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Clean Energy             Energy Efficient BuildingEmbracing    Energy Audit  NewChallenges             Energy Conservation
Present IAQ Objectives                                             8-hour average on 4 samples             Parameter      ...
Proposed IAQ Objectives                                                    1-hour TWA based on             Parameter      ...
PM size                45th Floor                             26th Floor           Without e-filter                       ...
Present IAQ Objectives                                                      8-hour average on 4 samples                   ...
Proposed IAQ Objectives                                                            1-hour TWA based on                    ...
Case study 1: A General Office                                      BSize: 10,000 ft 2Occupancy: >100
Comparison of two IAQ(5P, 48H) Profiles taken at Sampling Points A & B
Comparison of two IAQ(5P, 48H) Profiles taken at Sampling Points A & B
Comparison of two IAQ(5P, 48H) Profiles taken at Sampling Points A & B
4/F      3/F            2/F
大 學 之 道 - The moral of learning is在 明 明 德 - in differentiating the rights from the          wrongs,        - in making pro...
Lecture 2b   Scientific and Systematic Manageme IAQnt of
Lecture 2b   Scientific and Systematic Manageme IAQnt of
Lecture 2b   Scientific and Systematic Manageme IAQnt of
Lecture 2b   Scientific and Systematic Manageme IAQnt of
Lecture 2b   Scientific and Systematic Manageme IAQnt of
Lecture 2b   Scientific and Systematic Manageme IAQnt of
Lecture 2b   Scientific and Systematic Manageme IAQnt of
Lecture 2b   Scientific and Systematic Manageme IAQnt of
Lecture 2b   Scientific and Systematic Manageme IAQnt of
Lecture 2b   Scientific and Systematic Manageme IAQnt of
Lecture 2b   Scientific and Systematic Manageme IAQnt of
Lecture 2b   Scientific and Systematic Manageme IAQnt of
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Lecture 2b Scientific and Systematic Manageme IAQnt of

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Lecture 2b Scientific and Systematic Manageme IAQnt of

  1. 1. Clean Energy Energy Efficient BuildingEmbracing Energy Audit NewChallenges Energy Conservation
  2. 2. Present IAQ Objectives 8-hour average on 4 samples Parameter Unit1 Excellent Class Good Class Room Temperature oC 20 to 25.5 < 25.5 FACTORS COMFORT Relative Humidity % 40 to 70 < 70 Air Movement m/s < 0.2 < 0.32POLLUTANTSAVOIDABLE Respirable Suspended μg/m3 < 20 < 180 Particulates (PM10) Radon (Rn) Bq/m3 < 150 < 200 Airborne Bacteria cfu/m3 < 500 < 1,000
  3. 3. Proposed IAQ Objectives 1-hour TWA based on Parameter Unit IAQ Profile1 Excellent Class Good Class Room Temperature oC 22 to 25 20 to 25 FACTORS COMFORT Relative Humidity % 40 to 65 < 70 Air Movement m/s < 0.2 < 0.32 Respirable Suspended counts To be decided Particulates (PM2.5/PM1)POLLUTANTSAVOIDABLE Radon (Rn) Bq/m3 < 200 Microbial To be decided
  4. 4. PM size 45th Floor 26th Floor Without e-filter With e-filterRemark: RSP measurement was taken September 2, 2008.
  5. 5. Present IAQ Objectives 8-hour average on 4 samples Parameter Unit Excellent Class Good Class3 Carbon Dioxide (CO2) ppmv < 800 < 1,000 μg/m3 < 2,000 < 10,000GASEOUS POLLUTANTS Carbon Monoxide (CO) ppmv < 1.7 < 8.7 μg/m3 < 40 < 150 Nitrogen Dioxide (NO2) ppbv < 21 < 80 μg/m3 < 50 < 120 Ozone (O3) ppbv < 25 < 61 μg/m3 < 30 < 100 Formaldehyde (HCHO) ppbv < 24 < 81 Total Volatile (TVOC) μg/m3 < 200 < 600 Organic Compounds ppbv < 87 < 261
  6. 6. Proposed IAQ Objectives 1-hour TWA based on Parameter Unit IAQ Profile3 Excellent Class Good ClassGASEOUS POLLUTANTS Carbon Dioxide (CO2) ppm(v/v) < 800 < 1,000 Carbon Monoxide (CO) ppm(v/v) < 2.0 < 10 Nitrogen Dioxide (NO2) ppb(v/v) < 20 < 80 Ozone (O3) ppb(v/v) < 25 < 60 Formaldehyde (HCHO) ppb(v/v) < 30 < 100 Total Volatile (TVOC) ppb(v/v) < 100 <250&500 Organic Compounds
  7. 7. Case study 1: A General Office BSize: 10,000 ft 2Occupancy: >100
  8. 8. Comparison of two IAQ(5P, 48H) Profiles taken at Sampling Points A & B
  9. 9. Comparison of two IAQ(5P, 48H) Profiles taken at Sampling Points A & B
  10. 10. Comparison of two IAQ(5P, 48H) Profiles taken at Sampling Points A & B
  11. 11. 4/F 3/F 2/F
  12. 12. 大 學 之 道 - The moral of learning is在 明 明 德 - in differentiating the rights from the wrongs, - in making progress - simplification - standardization - implementation - integration - globalization and在止於至善 - in the pursuit of excellence.

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