Overall Data:
Data:
Outside temperatures and occupancy:
- Hobos activated at 10:00 a.m. Thursday November 9th
- Hobos
deactivated at 10:00 a.m. Tuesday November 14th
|
Date: |
Mean Outside Air Temperature: |
Occupancy in theater 1: |
|
Thursday, 11/9/00 |
34 F |
48 people |
|
Friday, 11/10/00 |
33.4 F |
169 |
|
Saturday, 11/11/00 |
34.2 F |
149 |
|
Sunday, 11/12/00 |
35.3 F |
171 |
|
Monday, 11/13/00 |
38.4 F |
104 |
|
Tuesday, 11/14/00 |
32.6 F |
|
Movie times: 2:45 p.m. (sun); 5:30 p.m.; 8:15 p.m.; 11:00 p.m.
Analysis:
- Based on the data it is quite apparent that the majority of the heat introduced to Bijou's theater one climbs to the top of the space, where it is useless to the occupants. The two hobos placed above the seating plane (hobo 3 and 4) both experienced extremely high temperatures while the room was in use, yet plummeted to similar levels as the two hobos placed on the ground plane (hobo 1 and 2) while the space was not in use. The heat does warm the space to some degree, yet the temperature at the seating level still rarely rises above 65 degrees F, and can be below 60 F during early showings. This falls well outside the thermal comfort zone of a typical person according to Mechanical and Electrical Equipment for Buildings (Reynolds; 46). The chart, figure 1.1, below illustrates this problem, showing the thermal comfort of a person, in red, beginning at 68 F and the high temperatures in the Bijou shown in blue. This chart is based on a CLO and MET rate for the occupants similar to that of those in the Bijou, with the CLO rate potentially being slightly higher based on the cold outdoor temperature and the cold temperatures in the theater.
Figure 1.1: thermal comfort chart (Reynolds; 46)
- While the theater is in use the temperatures at the ceiling plane can be 35 degrees warmer yet fall to less than 5 degrees when not in use and the heat is off. The ceiling temperature also exhibits extremely rapid temperature swings when the heat is on or off. This shows that the heating strategy for theater one in the bijou is extremely inefficient. Saturday night, when the heat was left on for the duration of the evening this inefficiency is quite apparent because the two hobo's at the seating plane still do not manage to climb above 60 degrees F, with hobo #2 actually dropping below 50 degrees with the heat on. Hobos 1 and 4, located in the front of the theater, did maintain somewhat warmer temperatures than their counterparts placed in the rear, again showing an extremely inefficient heating pattern from the front to the rear. The chart below, figure 1.2, illustrates this heat distribution, with the hotter, red areas at the top and the colder areas below.
Figure 1.2: Section temperature gradient for theater one
