University Library

1
University Library

• An analysis of spaces in the library

Michael DeMarco Environmental Technology
III Prof. Adil Sharag-Eldin February 6, 2003
2

• A Brief History
• Completed in 1970
• Built for a cost of 9 million
• Designed by the architecture
• firm Stickle International

University Library
3

• Layout
• Contains computer labs, copiers, and printing
  services for students
• Home to KSUs high administrative offices
• Many spaces for students to research and study
• Two of these such spaces were tested

University Library
4
Hypothesis The temperature and lighting levels
are adequate enough for students to study
efficiently.
University Library
5
Analysis To test the hypothesis, I placed two
(2) HOBO units in two different places in the
library one on the first floor and one on the
sixth floor, both in places where many students
go to sit and study.
University Library
6
Analysis (contd)
The first HOBO was placed on the first floor in
the study space immediately behind the
circulation desk.
University Library
I hid it down this aisle
It was placed in a central location to where
students would be in the space, so as not to
favor one space over another.
7
Data (HOBO-1)
Data taken once every 2 minutes for 4 days.
University Library
Average Temp. 72.6 Average Relative
Humidity 24.1
8
Analysis (contd)
The second HOBO unit was placed on the sixth
floor, at the end of the bookshelves near these
windows.
I hid him here
University Library
Again, this one was also placed near places that
students tend to study.
9
Data (HOBO-1)
Data taken once every 4 minutes for 4 days
University Library
Average Temp 74.4
10
Psychrometric Chart
Given the average temperature and relative
humidity data, the occupants of the space should
feel comfortable in approximately the zone
highlighted.
University Library
11
Post analysis
ASHRAE dictates that the comfort zone for 1.2 met
(seated and relaxed) is as shown in the diagram.
University Library
12
Analysis
Indeed, if one looks at the results taken from
the two different locations, the data collected
falls well within the comfort zone for the
activity level and the given conditions.
University Library
13
Analysis
Comfort Model Results Effective Temperature (ET)
73.9 Standard Effective Temperature (SET) 74.3
Discomfort (DISC) -0.00 Comfortable Thermal
Sensation (TSENS) -0.00 Neutral Predicted Mean
Vote (PMV) -0.37 Neutral Predicted Percentage
Dissatisfied (PPD) 7.82 Heat Stress Index (HSI)
13.12 Body Temperatures Skin Temperature (Tsk)
92.7 Core Temperature (Tcr) 98.3 Heat Balance
Summary (W m-2) Metabolic Rate (METAB) 70.00
Metabolic Shivering (SHIV) 0.00 Metabolic Work
(WORK) 0.00 Respiratory evaporative heat loss
(Eres) 5.65 Respiratory sensible heat loss
(Cres) 1.029 Dry heat loss from skin surface
(DRY) 49.78 Total Evaporative heat loss at skin
surface (ESK) 13.54 Heat storage in the skin
(SSK) 0.006 Heat storage in the core (SCR) 0.002
Skin Blood Flow (SKBF) (L m-2 hr-1) 12.97 Amount
of sweating (REGSW) (g hr-1 m2) 7.23
In the case of the sixth floor, the results are
actually more ideal than those received from the
first floor. The discomfort level is non
existent, and the PMV is slightly more toward
pure neutral than for the analysis of the first
floor.
University Library
14
Analysis
What does this mean? The discomfort level is very
low given the climatic conditions. The PMV is
-.51, which is certainly acceptable by ASHRAEs
standards. The percentage of people that would
be dissatisfied under these conditions is low, at
10.36
Comfort Model Results Effective Temperature (ET)
72.6 Standard Effective Temperature (SET) 73.4
Discomfort (DISC) -0.01 Comfortable Thermal
Sensation (TSENS) -0.01 Neutral Predicted Mean
Vote (PMV) -0.51 Slightly Cool Predicted
Percentage Dissatisfied (PPD) 10.36 Heat Stress
Index (HSI) 11.19 Body Temperatures Skin
Temperature (Tsk) 92 Core Temperature (Tcr) 98.3
Heat Balance Summary (W m-2) Metabolic Rate
(METAB) 70.00 Metabolic Shivering (SHIV) 0.00
Metabolic Work (WORK) 0.00 Respiratory
evaporative heat loss (Eres) 5.69 Respiratory
sensible heat loss (Cres) 1.078 Dry heat loss
from skin surface (DRY) 51.66 Total Evaporative
heat loss at skin surface (ESK) 11.56 Heat
storage in the skin (SSK) 0.004 Heat storage in
the core (SCR) -0.000 Skin Blood Flow (SKBF) (L
m-2 hr-1) 12.39 Amount of sweating (REGSW) (g
hr-1 m2) 4.13
University Library
15
Conclusions After analyzing the data, the
conclusion is that the library is a comfortable
place for students to come and study. This
supports the hypothesis that they are comfortable
in this space.
University Library
16

• Post analysis
• Things for consideration
• Only 2 of 12 floors
• Only one space on those floors
• Weather
• Different people occupy space i.e.,
  physiology, clothing,
• activity

University Library
17

HOBO Dude says
You can study here!!!
University Library