PowerPoint Presentation
ET 494 Senior Design II Fall 2013By: Justin Cifreo, Benjamin
Gabriel, Nathan TaylorInstructor: Dr. Cris KoutsougerasAdvisor: Dr.
Junkun MaMechanical Engineering TechnologySoutheastern Louisiana
UniversitySOLAR POWERED HVAC SYSTEM 1PURPOSE The objective of this
project is to research and design a solar heating, ventilation, and
cooling system that will reduce Southeastern Louisiana Universitys
energy consumption.2
3
Overlay of System on Site4
CURRENT CONDITIONPresent HVAC system in use
5GREENHOUSESCurrently use propane fueled convection heaters
6CHALLENGESHeat Load Calculation
Ventilation Flow Rates
Chiller Size Availability
Control Design
Unknowns 7
Solar Panels SelectionManufactured by SchucoSolar Thermal
PanelsArray of 5 PanelsMixture of Propylene 79.2% Efficiency Rating
Glycol and Water
8SOLAR ABSORPTION PANEL
9COMSOL PROTOTYPE10
Finished Solar Panel Array Mounted Atop Steel Structure11
HEAT EXCHANGERSManufactured by Schuco Plate-Style heat
exchangersTransfer heat gathered by propylene glycol to water
12HOT WATER STORAGE TANKManufactured by Lochinvar1,000 Gallon
CapacityProvides latent heat storage
13
CHILLER CHARACTERISTICSAdsorption
Silica gel
Efficiency
Operating Temperatures
Operating Conditions
14CHILLER CHARACTERISTICS cont.Environmentally
friendlyTemperature rangeNoiseSmall electricity
consumptionDurabilityMaintenance Lifespan
15CHILLER EFFICIENCY
16Chiller AvailabilityOld Chiller LineNew ADCM7 Chiller line178
min cycle timeLimited availability
New ADCM7 Chiller Line release
1-40 TR @ 1k 1.5k/ton
Cycle Time 2 min.4 times
COOLING TOWER AND PONDUtilization of a cooling tower with the
adsorption chillerAssists in cooling process of the chiller
condenser
18
EXTERIOR GEOTHERMAL HEAT SINK19
HEAT LOSSTwo types of building materialConcrete Masonry Units
(CMUs)Nominal size 1688 inchInsulated Metal Panels (IMPs)26 gauge
metalSandwiched Insulation 20
Heat Loss AnalysisU-values & R-valuesDoors, Windows,
Walls,Ceilings & FloorsInfiltration
21
Heat Loss Calculation22
Heat Lost or Gained During Fluid Transfer23
OVERALL SYSTEM CONTROL
24OVERALL SYSTEM CONTROL25
OVERALL SYSTEM CONTROL26
DELIVERABLES/ SOLUTIONSResearched existing solar heating and
cooling systems on the market Came up with a theoretical solar HVAC
system schematic Measure interior volumes of all facility spaces
for heat load calculation Measure area of exterior walls for heat
values Measure windows and doors for heat values Log present and
future equipment for heat gains 27DELIVERABLES Cont.Obtain heat
load and flow rate equations Make excel spreadsheet for heat load
calculation and flow rate analysis Research heat exchangers and
design simple heat exchanger in COMSOL Research duct flow rate
calculation, material selection, and geometry specifications Design
and analyze simple solar heating panel in COMSOLDesign system
control layout and flow charts for system
28DELIVERABLES Cont.Complete system specification Calculate
overall system costBuild table-top model of HVAC systemMake
specification sheet for system componentsContact local HVAC
professional 29TIMELINE1/25System introductory meeting with Mr.
Byron Patterson and Dr. Junkun Ma, obtained floor plan and area
measurements1/28Solar HVAC systems researched1/30Researched
different solar energy collector units, selected rough schematic
system diagram 2/1Collected height measurements at project site,
calculated volumes for heat calculations 2/6Visio schematics
constructed to present to Mr. Byron2/7Meeting with Dr. Ma,
discussed system components and operations of
components30TIMELINECont.2/27Brainstorming meeting Mr. Byron, Dr.
Ma, Dr. Rode3/6Biology building system walkthrough 3/8Calculate
total heat of each volume section, learn heat flow analysis, take
pictures Biology Building3/13Meet with Byron to solidify
specifications3/14Calculate and analyze individual system
components3/20Meet with Byron and Dr. Ma to get input and take next
step in design31TIMELINECont.3/27Discussed back tracking, heat load
and general duct work design4/11Researched duct work and sizing
along with heat load factors4/18Created excel
spreadsheet4/20Collected wall, window, and equipment
loads5/3Calculate Total Heat Load 5/10Set up Sensors ( Humidistat,
Thermometer)32TIMELINECont.FallObtain and Learn Manual J for heat
load
FallContact local HVAC professional
FallConstruct table-top system model
FallAnalyze system design compared to available system
componentsFallControl
33REFERENCES34Engineeringtoolbox.comModern Refrigeration and Air
Conditioning 18th editionShuco USALochinvar
CorporationAdsorptionchiller.comManual J: Calculating Heat Losses,
Manual 3, Sixth Edition35
