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SEALANT CURING OVEN

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.

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SEALANT CURING OVEN

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  1. SEALANT CURING OVEN Presenters Khoi Nguyen Meshari Al Ebrahim Engineering Design Team Paul Lucas MirceaBec Khoi Nguyen Thong Truong Meshari Al Ebrahim AsgedomGebrehiwot PSU Faculty Advisor Dr. FaryarEtesami Boeing Industry Advisor Rory Olson

  2. Preview • Project Background • PDS Summary • Previous Design • Steam Injection: advantages and disadvantages. • Water Atomization: advantages and disadvantages. • Current Design: Stulz-Ultrasonic Humidifier. • Questions

  3. Project Background • 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

  4. PDS Summary • Performance • RH 50 ± 5% @130 ± 5 o F • Un-Plumbed • Ergonomics • < 35 lbm supply

  5. Previous Design Atomizing Water Method: • Advantages • Inexpensive • Suitable for lower temperature and lower humidity • Disadvantages • Droplet/moisture formation • Temperature change

  6. Previous Design Cont. Steam Injection Method: • Advantages • Higher RH (100%) • Dry process • No temperature change • Disadvantages • Delay initial steam supply • More complex design • Expensive (steam generator) • Mass Flow rate from 4 lbm/hr to 60 lbm/hr

  7. Estimate Pressure In Operating Oven 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 Poven = 471 kPa

  8. Estimate The Flow Rate of Steam 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

  9. Current design Stulz-Ultrasonic Humidifiers Advantages: • Very fine mist • Small size (10.71” x 8.27”) • Long service life • Mass Flow Rate up to 4 lbm/hr

  10. Temperature Vs. Time

  11. Parts Illustrations

  12. Current Progress Humidifier Design: Including on board water tank, fan and controls

  13. Questions ?

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