Appliances information of TCA
Abstract:
The purpose of this document is to see how much energy is used for the appliances in TCA and
to find out how we can conserve the energy usage. In this document, freezers, microwaves, food
heat lamp and projectors are the subject. For the freezers, we checked the outside temperature to
see if the cold air comes out or the freezer is overheated. We also checked inside temperature to
check whether the refrigerator keeps food or drinks cold or not.
Equipment:
Kill A Watt EZ (model: P4460)
Thermal Leak Detector
Data:
Appliance:Freezer(for Ice-cream only)
* Unit for temperature: Celsius
surface (heat) temperature
red (hot); 31
inside temperature
-20
volt
120.7
watt
108
cost per year
$ 52
Appliance:Teacher’s refrigerator:
surface (side)
17
surface (upper)
21
inside of freezer
-17
Appliance:Student’s refrigerator:
surface (side)
20
surface (upper)
25.6
freezer
-17
Volt
122.7
Watt (with door closed)
25
Watt (with door opened)
67
cost per year
$ 92
Appliance:refrigerator in other room:
surface (bottom)
19
surface (upper)
22
freezer
-12.5
volt
120.4
Watt (with door closed)
11
Watt(with door opened)
49
cost per year
142
Appliances:Two Microwaves
Volt
122
cost per year
$ 1.85
Appliance:Food heat lamp:
volt
120.6
Watt (turned off)
1
Watt (turned on)
497
cost per year
$98.41
Appliance:Projector in Math class:
volt
116.4
Watt (turned off)
0
Watt (turned on)
420
cost per year
$104
Appliance:Projector in Science Lab:
Volt
120
Watt (turned off)
0
Watt (turned on)
560
cost per year
$92.9
Appliance:Projector in History class
volt
121.1
Watt (turned off)
5
Watt (turned on)
86
cost per year
$ 80.8
Conclusion:
The surface temperature of the ice-cream freezer was higher than any other refrigerators even
though its cost is lower than others while the cold air was emitted through the side of the
teacher’s refrigerators. The condition of refrigerator along with the water heater was dirty. These
observations mean that TCA need to check the refrigerator and to change it if there is serious
problem considering energy usage to save energy and the cost. The data also shows that when
the door of the refrigerator is open, the amount of Watt increases which means it uses more
energy when it is open. To prevent this, we always have to close the door of refrigerators. Most
of refrigerators work fine.
For the food heat lamp and the projectors, they use a lot of energy according to data. When they
are turned on, the Watt increases incredibly. To conserve the energy, we have to turn off the
projectors when it is not in use. We also need to plug out too because some of them use energy
even though they are not turned on.