Course Textbook
Godish, T., Davis, W. T., & Fu, J. S.
(2015). Air quality (5th ed.). Boca Raton, FL: CRC Press.
Our course project will be to develop a
document titled A Permit By Rule (PBR) Application for an Interior Surface
Coating Facility that will serve as a simulation of our work as a contract
environmental engineer to a small vehicle body shop located in the state of
Texas.
The Scenario:
You have been contracted with a vehicle
body repair shop named Texas Car Body Repairs, USA to engineer and write a
state (Texas) air permit application for a carefully designed interior lining
(painting) facility. According to Texas state laws and EPA laws, the facility
must have an air permit before construction begins. Once the facility is
completed, the construction air permit will then become the operational air
permit for the facility. As a result, your client wants the air permit
application to automatically align the interior surface coating facility into
operational compliance with state and federal air quality laws. Consequently,
it is extremely important for you to write the air permit application to meet
the air permit criteria using the state guidance document and considering the
equipment and chemicals already planned for the facility operations.
Your client has presented you with the
following specifications regarding the facility operations plan:
|
Interior Liner Coating Material |
10 gallons coating/vehicle |
2 gallons of solvent/vehicle |
|
|
Vehicle Lining Application |
Apply interior liners to two (2) |
Work five (5) hours/day and four (4) |
|
|
Vehicle Lining Curing |
Cure interior liners of |
Work five (5) hours/day |
|
|
Interior Liner Cure |
Heater fuel source is natural |
Heater generates 2.1 million (MM) |
|
|
Vehicle Lining Design |
Cross-draft air plenum |
Vehicle interior is the spray area |
|
|
Exhaust Fan |
10,000 ft3/min (CFM) |
1 exhaust fan |
|
|
Air Makeup |
5760 ft3/min (CFM) |
1 air makeup |
|
|
Filter Openings |
20.0 ft2each |
Two (2) filter openings |
|
|
Coating WV |
VOC content |
2.8 lb/gal coating Coating VM |
|
|
Water Content |
Per gal/coating |
1.0 lb/gal |
|
|
Water Density |
Per gal/water |
8.34 lb/gal |
|
|
Coating VW |
Water volume |
Calculation |
|
|
Exempt-solvent Content |
Per gal/coating |
0.5 lb/gal |
|
|
Exempt-solvent Density |
Per gal/exempt solvent |
6.64 lb/gal |
|
|
Coating Ves |
Exempt solvent volume |
Calculation |
|
The client has designed an interior coating
spray painting system that allows the interior of a vehicle to be coated (such
as for new vehicles, or vehicles being restored after fire damage or other
catastrophic interior damage). The operations will involve a stripped-down
vehicle body being brought into the facility’s shop. The shop is a steel
building with a finished concrete floor and a paint booth for each vehicle. The
vehicle will be placed in the spray booth. The booth will be opened at one end
of the booth for makeup air. The exhaust air will flow through an exhaust
chamber at the other end of the vehicle (see Cross-Draft Automotive Spray Booth
in Appendix F of the TCEQ Regulatory Guidance Document). For each vehicle, once
the liner application operations are completed the forced curing (drying)
operations will immediately commence.
Instructions:
Unit V Mini Project
As a
continuation of our course project due in Unit VIII, A Permit By Rule (PBR)
Application for an Interior Surface Coating Facility, complete the next
section, “Operational Face and Filter Velocities,” of your proposal by
following the instructions carefully, and then submit your continued draft for
grading.
Instructions
1. Closely read
the Required Reading assignment from your textbook, the TCEQ (2011) document,
and the Unit Lesson in the Study Guide.
2. Open your
proposal draft from Unit IV and make any improvements to your draft using your
professor’s feedback from the Unit IV project assignment.
MEE 6501,
Advanced Air Quality Control 5
3. Open the
Unit V Study Guide, read the Unit V Lesson, then review the calculations
demonstrated and explained regarding face velocity calculations and filter
velocity calculations for our scenario.
4. Make your
Unit V work your fourth level 1 heading titled “Operational Face and Filter
Velocities.” Describe and demonstrate (illustrate) the calculations for the
following for this section of your project: (a) calculate the face velocity and
(b) filter velocity of the spray booth in a minimum one-page, double-spaced
document.
