AGENTS of CHANGE – WORKSHOP -  August 03AGENTS of CHANGE – WORKSHOP -  August 03

Plain Dealers are…Plain Dealers are…

Introduction Introduction

HypothesisHypothesis

AnalysisAnalysis

Methodology Methodology

DataData

Conclusion Conclusion

Introduction Introduction

After a walk through the building, our After a walk through the building, our team noticed variations in thermal team noticed variations in thermal conditions. The vestibule was warm. conditions. The vestibule was warm. The air in the corridor was stale. At The air in the corridor was stale. At the second floor the office seemed to the second floor the office seemed to be less humid. This lead us to wonder be less humid. This lead us to wonder whether these conditions were within whether these conditions were within the comfort zone or we were just used the comfort zone or we were just used to conventional buildings that are to conventional buildings that are designed to have very little variation in designed to have very little variation in thermal conditions, regardless of the thermal conditions, regardless of the function the space. function the space.

to be continued…to be continued…

Hypothesis Hypothesis 11

1A1A Temperature at different Temperature at different locations around the Lewis Center locations around the Lewis Center varies more than 5 varies more than 5 °F°F

1B1B The relative humidity at The relative humidity at different locations around the Lewis different locations around the Lewis Center varies more than 10 %.Center varies more than 10 %.

Hypothesis Hypothesis 22

The thermal conditions throughout the The thermal conditions throughout the Lewis center fall outside of the thermal Lewis center fall outside of the thermal comfort zone defined by ASHRAE.comfort zone defined by ASHRAE.

MethodologyMethodology

1. 1. Put HOBO data loggers in 10 locations throughout Lewis Center at 10pm.

2. 2. Use Testo Velocity Anemometer to check wind speed at those 10 locations at 9.30am and 11.00am.

3. 3. Use Raytek Infrared Thermometer to measure MRT at those 10 locations at 9.30am and 11.00am.

4. 4. Use Kestrel Pocket Weather Meter at those 10 locations at 9.30am and 11.00am.

5. 5. 12 noon collect HOBO data loggers.

D

A

Y

1

D

A

Y

2

OO

BB

SS

EE

RR

VV

AA

TT

II

OO

NN

OOn n

AAIIRRFFLLOOW W of of

IINNSISIDDEE

3

1

31 6

2 6

2

4

4

8

8

9

9 10

5

5

7

7

10

DataData

Next … EvaluationNext … Evaluation

9:30 11:00h1 operat temp 75.2 76

humidity 48 51

9:30 11:00h2 operat temp 73.6 76.1

humidity 58 54

h3 operat temp 77.3 80.5humidity 62 61

9:30 11:00h4 operat temp 77.3 76.6

humidity 54 54

h5 operat temp 73 73.6humidity 47 44

h6 operat temp 77.5 78.8humidity 58 53

9:30 11:00h7 operat temp 77.1 78.4

humidity 54 53

h8 operat temp 77.1 78.2humidity 56 59

9:30 11:00h9 operat temp 76.1 78.5

humidity 51 52

OT9 RH9 OT11 RH11

h1 75.2 48 76 51h2 73.6 58 76.1 54h3 77.3 62 80.5 61h4 77.3 54 76.6 54h5 73 47 73.6 44h6 77.5 58 78.8 53h7 77.1 54 78.4 53h8 77.1 56 78.2 59h9 76.1 51 78.5 52outside 76 64 82.9 63

Thermal Comfort at 11:00 am

0

10

20

30

40

50

60

70

72 74 76 78 80 82 84

Operative Temperature (f)

Re

lati

ve

Hu

mid

ity

Series1

ASHRAE COMFORT ZONEASHRAE COMFORT ZONE

P 43P 43, MEEB, MEEB

Thermal Comfort at 9:30 am

0

10

20

30

40

50

60

70

72 73 74 75 76 77 78

Operative Temperature (F)

Rel

ativ

e H

um

idit

y

Series1

vestibule outside

outside vestibule

next … Conclusionnext … Conclusion

Conclusion

  

The results of our measurements show:The results of our measurements show:

  

The greatest difference in temperature between the rooms is 7° F at 11:00 am. The The greatest difference in temperature between the rooms is 7° F at 11:00 am. The greatest difference in relative humidity is 7% at 11:00 am. These differences greatest difference in relative humidity is 7% at 11:00 am. These differences were between the vestibule and the upper floor office. There was very little were between the vestibule and the upper floor office. There was very little natural airflow within the building.natural airflow within the building.

  

The thermal conditions are at the limit of the comfort zone, except for one space: The thermal conditions are at the limit of the comfort zone, except for one space: the vestibule. The upstairs area of the atrium was on the very edge of the the vestibule. The upstairs area of the atrium was on the very edge of the comfort zone. comfort zone.