sealant curing oven
DESCRIPTION
SEALANT CURING OVEN. Presenters Khoi Nguyen Meshari Al Ebrahim Engineering Design Team Paul Lucas Mircea Bec Khoi Nguyen Thong Truong Meshari Al Ebrahim Asgedom Gebrehiwot PSU Faculty Advisor Dr. Faryar Etesami Boeing Industry Advisor Rory Olson. Preview. - PowerPoint PPT PresentationTRANSCRIPT
SEALANT CURING OVENPresentersKhoi NguyenMeshari Al Ebrahim
Engineering Design TeamPaul LucasMircea BecKhoi NguyenThong TruongMeshari Al EbrahimAsgedom Gebrehiwot
PSU Faculty AdvisorDr. Faryar Etesami
Boeing Industry AdvisorRory Olson
Project Background PDS Summary Previous Design
Steam Injection: advantages and disadvantages.
Water Atomization: advantages and disadvantages.
Current Design: Stulz-Ultrasonic Humidifier. Questions
Preview
Objective:◦Produce a retrofit-able sealant oven capable of
controlling humidity and temperature that allows for more efficient flow control
Current Methods:◦Large size - inefficient flow control◦Anchored to floor - Costly to move
Project Background
Performance◦RH 50 ± 5% @130 ± 5 o F◦Un-Plumbed
Ergonomics◦< 35 lbm supply
PDS Summary
Atomizing Water Method:Advantages Inexpensive Suitable for lower temperature
and lower humidity
Disadvantages Droplet/moisture formation Temperature change
Previous Design
Steam Injection Method:• AdvantagesHigher RH (100%)Dry processNo temperature change
• DisadvantagesDelay initial steam supplyMore complex designExpensive (steam generator)Mass Flow rate from 4 lbm/hr to 60 lbm/hr
Previous Design Cont.
State 1: (Room condition)
P1,a = 101.33 Kpa T1 = 25oC = 278.15 K RH = 65% P*Air (25oC) = 3.17
kPa V1 = 36 ft3 = 1.02 m3
State 2: (Required condition)
Poven = ? T2 = 57oC = 330.15 K RH = 50% P*Air (57oC)=17.85
kPa V2 =18 ft3 =0.51m3
Estimate Pressure In Operating Oven
Poven = 471 kPa
Assume: Curing products occupied 50% volume
V1 = 1.02 m3 V2 = 0.51 m3
P1 = 103.39 kPa P2 = 471.00 kPa RH = 65% RH = 50% T1 = 298.15 K T2 = 330.15 K
Mass flow rate: 1.52 lbm/hr
Estimate The Flow Rate of Steam
Stulz-Ultrasonic HumidifiersAdvantages: Very fine mist Small size (10.71” x 8.27”) Long service life Mass Flow Rate up to 4 lbm/hr
Current design
0 200 400 600 800 1000 1200 1400 16000
10
20
30
40
50
60
70
80
90
100
110
120
130
140
RHTemperature
Time (sec)
Tem
pera
ture
(F)
/RH
(%
)
Temperature Vs. Time
Parts Illustrations
Current Progress
Humidifier Design: Including on board water tank, fan and controls
?Questions