Waste Heat Recovery
 

Introduction
Inquiry & Hypothesis
Methodology
Data
Graphs  
Physical Measurements  
Analysis
Conclusions


Appendix
Acknowledgements
 

 Data > Physical Measurements
 Spot Measurements and Building System Information

Dryer Exhaust Spot Measurements

Exhaust

Temperature

Flow Rate

Spot measurements, 4 PM, 1/13/01

113

°F

930

feet/minute

114

860

115

1080

122

440

Further measurements showed an average of about 1000 ft./min., with a peak of 1300 ft/min.

Tube Size

Exhaust tube diameter

13.5 inches

Exhaust tube cross sectional area

1 square foot

Exhaust Tube Surface

Temperature

Exhaust tube in laundry room

130

°F

Exhaust tube on roof

77

Building System Information

Laundry Room

Dryers (4@): Cissell Manufacturing (Lousville, Ky) www.cissellmfg.com,

Model #: L36URD36G
BTU input: 180,000
BTU value: 1024

Exhaust air: 1 @ 8 inch duct (round) from each machine into a single 13.5 inch diameter exhaust duct. This duct passes up through ceiling and eventually (approx. 30 foot uninsulated run) exhausts onto roof.

Dryer Specifications (online at www.cissellmfg.com)

Washers (3@): Milnor Pellerin (Kenner La.) water psi 10-75 psi

2@ Model #: 30022FF8J
1@ Model #: 30020M5M5G/AAA

half-hour wash cycle. The three dryers drain in series into a 3 inch diameter copper drain pipe.


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Joshua Brandt, Sangeetha Divakar, Doug Parker, Troy Peters    Winter 2001