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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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Presentation Transcript
Sealant curing oven
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


Preview
Preview

  • Project Background

  • PDS Summary

  • Previous Design

    • Steam Injection: advantages and disadvantages.

    • Water Atomization: advantages and disadvantages.

  • Current Design: Stulz-Ultrasonic Humidifier.

  • Questions


  • Project background
    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


    Pds summary
    PDS Summary

    • Performance

      • RH 50 ± 5%

        @130 ± 5 o F

      • Un-Plumbed

    • Ergonomics

      • < 35 lbm supply


    Previous design
    Previous Design

    Atomizing Water Method:

    • Advantages

      • Inexpensive

      • Suitable for lower temperature

        and lower humidity

    • Disadvantages

      • Droplet/moisture formation

      • Temperature change


    Previous design cont
    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


    Estimate pressure in operating oven
    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


    Estimate the f low r ate of steam
    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


    Current design
    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


    Temperature vs time
    Temperature Vs. Time



    Current progress
    Current Progress

    Humidifier Design: Including on board water tank, fan and controls



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