““SMART” Telecomm Ambient Air Cooling SystemSMART” Telecomm Ambient Air Cooling SystemTeam 5.1:Team 5.1: Justin Alms, Ramon Benitez,Justin Alms, Ramon Benitez, Jennifer Pahnke Jennifer Pahnke Sponsor:Sponsor: Dr. Wilson Poon Dr. Wilson Poon Advisor:Advisor: Dr. James Glancey Dr. James Glancey

System OperationSystem Operation The Programmable Logic Controller (PLC) collects and The Programmable Logic Controller (PLC) collects and uses sensor data to adjust the fan, valve, and heaters to uses sensor data to adjust the fan, valve, and heaters to manipulate the temperature and relative humidity of the air manipulate the temperature and relative humidity of the air inside the electronic enclosure.inside the electronic enclosure. SYSTEMSYSTEM HOTHOT: Create an open system : Create an open system Lowering Heater Output, Bring in Cool Ambient Air, and Lowering Heater Output, Bring in Cool Ambient Air, and Increase Fan SpeedIncrease Fan Speed SYSTEMSYSTEM COLDCOLD: Create a closed system : Create a closed system Recirculate Warm Air, Decrease Fan Speed, and Turn on Recirculate Warm Air, Decrease Fan Speed, and Turn on HeatersHeaters

ConceptConceptSubsystemsSubsystems

System ControlSystem Control• PLCPLC

• WarningsWarnings• ValvesValves

• Data AcquisitionData Acquisition

EnclosureEnclosure• Air, Water TightAir, Water Tight• Positive PressurePositive Pressure• Small as PossibleSmall as Possible

FanFan

SensorsSensors

RecirculationRecirculation

Heat SourceHeat Source

Green = Clean Green = Clean Filtered AirFiltered Air

Yellow = Air being Yellow = Air being Warmed by Warmed by ElectronicsElectronics

Red = Hot Air Red = Hot Air to be Vented or to be Vented or RecirculatedRecirculated

Air MixingAir Mixing

Project Concept StatementProject Concept Statement Modern telecomm base stations are packed with sensitive Modern telecomm base stations are packed with sensitive electronics and amplifiers that generate significant amounts electronics and amplifiers that generate significant amounts of heat. The project goal is to design, build, and evaluate a of heat. The project goal is to design, build, and evaluate a modular cooling system that incorporates a GORE-TEXmodular cooling system that incorporates a GORE-TEX® ® membrane filter and membrane filter and maintains the temperature and relative maintains the temperature and relative humidity inside an outdoor electronics enclosure.humidity inside an outdoor electronics enclosure.

Lifetime

Size

Unique

Power Usage

Heat Dissipation

0 2 4 6 8 10 12

Key MetricsKey Metrics

Key Customer WantsKey Customer Wants

Low Cost21%

High Efficiency14%

Unique 31%

Low Adaptation 14%

Simplicity9%

Standard Size8%

Key Features of PrototypeKey Features of PrototypeHeat Dissipation – Dissipates 1000W of heat Heat Dissipation – Dissipates 1000W of heat Lifetime/corrosion –Cooling Air RH below 70% Lifetime/corrosion –Cooling Air RH below 70% Unique Unique

Only product in market utilizing GORE-TEXOnly product in market utilizing GORE-TEX membrane filtration technologymembrane filtration technologyOnly Open System Only Open System

Low Adaptation Rate Low Adaptation Rate Design is modularDesign is modularOperating Noise level < 20dbOperating Noise level < 20db

Simplicity - Easy filter replacementSimplicity - Easy filter replacement

Current Market Competition Current Market Competition Only Closed Systems such as:Only Closed Systems such as: Air Conditioners (A/C)Air Conditioners (A/C) Heat Exchangers (HEX)Heat Exchangers (HEX)

Advantage of our “SMART” Open SystemAdvantage of our “SMART” Open System Only product using GORE-TEXOnly product using GORE-TEX®® membrane membrane filtration technology filtration technology Heat dissipation using ambient air Heat dissipation using ambient air Size is small and design is modular Size is small and design is modular Cost efficient compared to A/C and HEXCost efficient compared to A/C and HEX

Limitations of Closed SystemsLimitations of Closed Systems A/C are bulky, expensive, andA/C are bulky, expensive, andconsume large amounts of powerconsume large amounts of power HEX have reached upper limit HEX have reached upper limit of performanceof performance

www.danterm.com – Current HEX Technology

Prototype ValidationPrototype Validation

Accomplished Target SpecsAccomplished Target Specs Small Modular Size (0.219m3)Small Modular Size (0.219m3) Low Power Consumption (347 W)Low Power Consumption (347 W) Meets 1000 W Heat DissipationMeets 1000 W Heat Dissipation Unique Open System DesignUnique Open System Design Relative Humidity is maintained Relative Humidity is maintained <80% to ensure long lifetime.<80% to ensure long lifetime.

PLC

Valve

Modular Unit

Electronic Cabinet

Fan

Filter

Testing ObjectiveTesting Objective1.1.Test system to prove proper module operation.Test system to prove proper module operation.

2. Use lab to simulate room temperature conditions2. Use lab to simulate room temperature conditions3. Simulate extreme conditions to find system limits3. Simulate extreme conditions to find system limits