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Risk analysis case study of enthalpy wheels for laboratory exhaust

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Johns Hopkins Ross Research Building<br />

Benchmark Capacity:<br />

• 7 th Floor North – 10,545 gsf<br />

Lighting and Equipment:<br />

Maximum – 6.0 w/gsf<br />

Average – 3.3 w/gsf<br />

Minimum – 1.8 w/gsf<br />

240<br />

220<br />

200<br />

180<br />

7th Floor North Electrical Load: Total Lab Equipment & Lighting Use<br />

Equipment:<br />

Maximum – 5.0 w/gsf<br />

Average – 2.3 w/gsf<br />

Minimum – 0.6 w/gsf<br />

Current (Amps)<br />

160<br />

140<br />

120<br />

100<br />

A Phase<br />

B Phase<br />

C Phase<br />

80<br />

60<br />

40<br />

20<br />

0<br />

5:00<br />

AM<br />

6:00<br />

AM<br />

7:00<br />

AM<br />

8:00<br />

AM<br />

9:00<br />

AM<br />

10:00<br />

AM<br />

11:00<br />

AM<br />

12:00<br />

PM<br />

1:00<br />

PM<br />

2:00<br />

PM<br />

3:00<br />

PM<br />

4:00<br />

PM<br />

5:00<br />

PM<br />

6:00<br />

PM<br />

7:00<br />

PM<br />

8:00<br />

PM<br />

9:00<br />

PM<br />

Time<br />

7/21/03

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