Tri-Valley Jr./Sr. High SchoolTri-Valley Jr./Sr. High SchoolHegins, PAHegins, PA
Senior Thesis, Spring 2004
OutlineOutline IntroductionIntroduction BackgroundBackground Existing ConditionsExisting Conditions Mechanical RedesignMechanical Redesign Structural ImplicationsStructural Implications Electrical ImplicationsElectrical Implications Cost Analysis/ComparisonCost Analysis/Comparison ConclusionsConclusions
Tri-Valley Jr./Sr. High SchoolTri-Valley Jr./Sr. High SchoolMechanical OptionMechanical Option
Jason P. KramerJason P. Kramer
Hegins, PAHegins, PA
Who Am I?Who Am I?
Primary Faculty Advisor – Dr. MummaPrimary Faculty Advisor – Dr. Mumma
Jason P. KramerMechanical Option
Tri-Valley Jr./Sr. High SchoolTri-Valley Jr./Sr. High SchoolMechanical OptionMechanical Option
Jason P. KramerJason P. Kramer
Hegins, PAHegins, PA
BackgroundBackground
Major Project PlayersMajor Project Players Tri-Valley School District - OwnerTri-Valley School District - Owner EI Associates – ArchitectsEI Associates – Architects Brinjac – EngineersBrinjac – Engineers Lobar, Inc – Gen. ContractorLobar, Inc – Gen. Contractor
Tri-Valley Jr./Sr. High SchoolTri-Valley Jr./Sr. High SchoolMechanical OptionMechanical Option
Jason P. KramerJason P. Kramer
Hegins, PAHegins, PA
SettingSetting Hegins, PAHegins, PA Rural, central PA town, population 5500Rural, central PA town, population 5500 Comprised of 450 students, grades 7-12Comprised of 450 students, grades 7-12 Lobar, Inc – Gen. ContractorLobar, Inc – Gen. Contractor
Existing ConditionsExisting Conditions
MechanicalMechanical Four pipe water circulation system Four pipe water circulation system
with fan coil units, unit ventilators with fan coil units, unit ventilators and larger air handling unitsand larger air handling units
Two 150 Ton air-cooled rotary Two 150 Ton air-cooled rotary chillerschillers
Two fuel oil fired boilersTwo fuel oil fired boilers
Tri-Valley Jr./Sr. High SchoolTri-Valley Jr./Sr. High SchoolMechanical OptionMechanical Option
Jason P. KramerJason P. Kramer
Hegins, PAHegins, PA
ElectricalElectrical 480V/277 feed from main line into 480V/277 feed from main line into
transformertransformer 17 panels from main distribution panel17 panels from main distribution panel 277V lighting277V lighting 480V chillers480V chillers 120V unit ventilators, fan coils120V unit ventilators, fan coils
StructuralStructural Original Building is cast-in-place concrete Original Building is cast-in-place concrete Renovated parts include cast in place Renovated parts include cast in place
concrete and structural steelconcrete and structural steel Relative roof framing is steel truss Relative roof framing is steel truss
constructionconstruction
Mechanical RedesignMechanical Redesign
Tri-Valley Jr./Sr. High SchoolTri-Valley Jr./Sr. High SchoolMechanical OptionMechanical Option
Jason P. KramerJason P. Kramer
Hegins, PAHegins, PA
Basis for RedesignBasis for Redesign Maintain current four pipe water Maintain current four pipe water
circulation systemcirculation system Switch primary ventilation system Switch primary ventilation system
from current fan coil/unit ventilators from current fan coil/unit ventilators to Dedicated outdoor air system to Dedicated outdoor air system (DOAS)(DOAS)
Use current fan coil/unit ventilator Use current fan coil/unit ventilator as secondary cooling/heating as secondary cooling/heating systemsystem
PicturePicture
Mechanical RedesignMechanical Redesign
Tri-Valley Jr./Sr. High SchoolTri-Valley Jr./Sr. High SchoolMechanical OptionMechanical Option
Jason P. KramerJason P. Kramer
Hegins, PAHegins, PA
What is a Dedicated Outdoor Air System or DOAS?What is a Dedicated Outdoor Air System or DOAS? Minimizes amount of ventilation air circulated through Minimizes amount of ventilation air circulated through
buildingbuilding
What are the advantages of DOAS?What are the advantages of DOAS? 11 22 33 ……
Mechanical RedesignMechanical Redesign
Tri-Valley Jr./Sr. High SchoolTri-Valley Jr./Sr. High SchoolMechanical OptionMechanical Option
Jason P. KramerJason P. Kramer
Hegins, PAHegins, PA
SEMCO Packaged Ventilation UnitsSEMCO Packaged Ventilation Units 11 22 ……
Pictures cut from SEMCO Pictures cut from SEMCO
Mechanical RedesignMechanical Redesign
Tri-Valley Jr./Sr. High SchoolTri-Valley Jr./Sr. High SchoolMechanical OptionMechanical Option
Jason P. KramerJason P. Kramer
Hegins, PAHegins, PA
CAD drawings of new ahu CAD drawings of new ahu layout on roof layout on roof
Mechanical RedesignMechanical Redesign
Tri-Valley Jr./Sr. High SchoolTri-Valley Jr./Sr. High SchoolMechanical OptionMechanical Option
Jason P. KramerJason P. Kramer
Hegins, PAHegins, PA
CAD drawings of new duct CAD drawings of new duct systemssystems
Structural ImplicationsStructural Implications
Tri-Valley Jr./Sr. High SchoolTri-Valley Jr./Sr. High SchoolMechanical OptionMechanical Option
Jason P. KramerJason P. Kramer
Hegins, PAHegins, PA
Steel Truss Roof SystemSteel Truss Roof System Information gathered from analysis of existing Information gathered from analysis of existing
truss system and what, if anything, needs to truss system and what, if anything, needs to be done to correct for new AHUs on roofbe done to correct for new AHUs on roof
Possible CAD drawings of new truss layoutPossible CAD drawings of new truss layout
Electrical ImplicationsElectrical Implications
Tri-Valley Jr./Sr. High SchoolTri-Valley Jr./Sr. High SchoolMechanical OptionMechanical Option
Jason P. KramerJason P. Kramer
Hegins, PAHegins, PA
Addition of Panels and resizing of main electrical Addition of Panels and resizing of main electrical feeds to satisfy new AHUsfeeds to satisfy new AHUs
Cost AnalysisCost Analysis
Tri-Valley Jr./Sr. High SchoolTri-Valley Jr./Sr. High SchoolMechanical OptionMechanical Option
Jason P. KramerJason P. Kramer
Hegins, PAHegins, PA
MechanicalMechanical
ElectricalElectrical
StructuralStructural
ConclusionsConclusions
Tri-Valley Jr./Sr. High SchoolTri-Valley Jr./Sr. High SchoolMechanical OptionMechanical Option
Jason P. KramerJason P. Kramer
Hegins, PAHegins, PA
Special Thanks to…Special Thanks to…
Tri-Valley Jr./Sr. High SchoolTri-Valley Jr./Sr. High SchoolMechanical OptionMechanical Option
Jason P. KramerJason P. Kramer
Hegins, PAHegins, PA
My ParentsMy Parents Dr. MummaDr. Mumma All Other AE FacultyAll Other AE Faculty Fellow StudentsFellow Students
Questions?Questions?
Tri-Valley Jr./Sr. High SchoolTri-Valley Jr./Sr. High SchoolMechanical OptionMechanical Option
Jason P. KramerJason P. Kramer
Hegins, PAHegins, PA