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Tri-Valley Jr./Sr. High School Hegins, PA

Tri-Valley Jr./Sr. High School Hegins, PA. Senior Thesis, Spring 2004. Outline. Introduction Background Existing Conditions Mechanical Redesign Structural Implications Electrical Implications Cost Analysis/Comparison Conclusions. Tri-Valley Jr./Sr. High School. Jason P. Kramer.

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Tri-Valley Jr./Sr. High School Hegins, PA

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  1. Tri-Valley Jr./Sr. High SchoolHegins, PA Senior Thesis, Spring 2004

  2. Outline • Introduction • Background • Existing Conditions • Mechanical Redesign • Structural Implications • Electrical Implications • Cost Analysis/Comparison • Conclusions Tri-Valley Jr./Sr. High School Jason P. Kramer Hegins, PA Mechanical Option

  3. Who Am I? Primary Faculty Advisor – Dr. Mumma Jason P. Kramer Mechanical Option Tri-Valley Jr./Sr. High School Jason P. Kramer Hegins, PA Mechanical Option

  4. Background • Setting • Hegins, PA • Rural, central PA town, population 5500 • Comprised of 450 students, grades 7-12 • Lobar, Inc – Gen. Contractor • Major Project Players • Tri-Valley School District - Owner • EI Associates – Architects • Brinjac – Engineers • Lobar, Inc – Gen. Contractor Tri-Valley Jr./Sr. High School Jason P. Kramer Hegins, PA Mechanical Option

  5. Existing Conditions • Mechanical • Four pipe water circulation system with fan coil units, unit ventilators and larger air handling units • Two 150 Ton air-cooled rotary chillers • Two fuel oil fired boilers • Structural • Original Building is cast-in-place concrete • Renovated parts include cast in place concrete and structural steel • Relative roof framing is steel truss construction • Electrical • 480V/277 feed from main line into transformer • 17 panels from main distribution panel • 277V lighting • 480V chillers • 120V unit ventilators, fan coils Tri-Valley Jr./Sr. High School Jason P. Kramer Hegins, PA Mechanical Option

  6. Mechanical Redesign • Basis for Redesign • Maintain current four pipe water circulation system • Switch primary ventilation system from current fan coil/unit ventilators to Dedicated outdoor air system (DOAS) • Use current fan coil/unit ventilator as secondary cooling/heating system Picture Tri-Valley Jr./Sr. High School Jason P. Kramer Hegins, PA Mechanical Option

  7. Mechanical Redesign • What is a Dedicated Outdoor Air System or DOAS? • Minimizes amount of ventilation air circulated through building • What are the advantages of DOAS? • 1 • 2 • 3 • … Tri-Valley Jr./Sr. High School Jason P. Kramer Hegins, PA Mechanical Option

  8. Mechanical Redesign • SEMCO Packaged Ventilation Units • 1 • 2 • … Pictures cut from SEMCO Tri-Valley Jr./Sr. High School Jason P. Kramer Hegins, PA Mechanical Option

  9. Mechanical Redesign CAD drawings of new ahu layout on roof Tri-Valley Jr./Sr. High School Jason P. Kramer Hegins, PA Mechanical Option

  10. Mechanical Redesign CAD drawings of new duct systems Tri-Valley Jr./Sr. High School Jason P. Kramer Hegins, PA Mechanical Option

  11. Structural Implications • Steel Truss Roof System • Information gathered from analysis of existing truss system and what, if anything, needs to be done to correct for new AHUs on roof Possible CAD drawings of new truss layout Tri-Valley Jr./Sr. High School Jason P. Kramer Hegins, PA Mechanical Option

  12. Electrical Implications • Addition of Panels and resizing of main electrical feeds to satisfy new AHUs Tri-Valley Jr./Sr. High School Jason P. Kramer Hegins, PA Mechanical Option

  13. Cost Analysis • Mechanical • Structural • Electrical Tri-Valley Jr./Sr. High School Jason P. Kramer Hegins, PA Mechanical Option

  14. Conclusions Tri-Valley Jr./Sr. High School Jason P. Kramer Hegins, PA Mechanical Option

  15. Special Thanks to… • My Parents • Dr. Mumma • All Other AE Faculty • Fellow Students Tri-Valley Jr./Sr. High School Jason P. Kramer Hegins, PA Mechanical Option

  16. Questions? Tri-Valley Jr./Sr. High School Jason P. Kramer Hegins, PA Mechanical Option

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