CoolPac: Cooling Device CoolPac: Cooling Device for Firefightersfor Firefighters

Team 2

BME: Jaspreet Mankoo

Kerri Blanc

ME: Nedim Begovac

Sean Meehan

Client: Createc Consulting LLC

Advisor: Hans Almqvist36A Bucks Hill RdSouthbury, CT  06488203-215-6824

OutlineOutline

BackgroundBackground Current ProductsCurrent Products ObjectivesObjectives RequirementsRequirements Project DescriptionProject Description Budget Budget ConclusionConclusion

Createc Consulting LLCCreatec Consulting LLC

Sponsor Advisor: Hans AlmqvistSponsor Advisor: Hans Almqvist Focused on designing personal safety Focused on designing personal safety

equipment for firefighters, industrial equipment for firefighters, industrial workers ,etcworkers ,etc

Main customers are local and federal Main customers are local and federal governmentgovernment

Successful designs include S.C.U.B.A Successful designs include S.C.U.B.A breathing apparatus, hazmat suits, breathing apparatus, hazmat suits, SCBA faceplatesSCBA faceplates

Heat StressHeat Stress

Buildup of body heat generated Buildup of body heat generated internally or externallyinternally or externally

Hastens muscular fatigueHastens muscular fatigue Increases cardiovascular strainIncreases cardiovascular strain Compromises cognitive functionCompromises cognitive function Firefighters especially at risk due to Firefighters especially at risk due to

high internal and external heathigh internal and external heat

Heat StressHeat Stress

CoolPac PrototypeCoolPac Prototype

Designed as a sleeve to be worn under the Designed as a sleeve to be worn under the suitsuit

Consists of the Consists of the sleeve, phase-change sleeve, phase-change material (PCM), and fastening devicematerial (PCM), and fastening device

Human thermoregulation involves increased Human thermoregulation involves increased blood flow to extremities under stressblood flow to extremities under stress

Temp. of the sleeve < temperature of the Temp. of the sleeve < temperature of the bodybody

Heat can be absorbed by the PCM due to Heat can be absorbed by the PCM due to the shallow blood vessels the shallow blood vessels

CoolPac PrototypeCoolPac Prototype

Current MarketCurrent Market

KoreKooler Rehab ChairKoreKooler Rehab Chair Similar heat transfer conceptSimilar heat transfer concept Limited by lack of mobilityLimited by lack of mobility PECS Cooling VestPECS Cooling Vest Not as physiologically inefficient Not as physiologically inefficient Adds considerable weight Adds considerable weight

ObjectivesObjectives

Validation testing for arms and legs Validation testing for arms and legs Mechanical RedesignMechanical Redesign PCM OptimizationPCM Optimization

RequirementsRequirements

Validation Testing:Validation Testing: Testing needs to be carried out in a scientific Testing needs to be carried out in a scientific

environment with the proper tools and environment with the proper tools and

equipmentequipment Cycling Bike, Thermal Sensors, Heart Rate Cycling Bike, Thermal Sensors, Heart Rate

Monitor, Full Body Suit and/or Firefighter Monitor, Full Body Suit and/or Firefighter Suit, CoolPac Prototypes(2-4)Suit, CoolPac Prototypes(2-4)

Farmington Health Center laboratory and/or Farmington Health Center laboratory and/or Gampel testing facilityGampel testing facility

RequirementsRequirements

Provided constraints need to be met. Provided constraints need to be met. Work generated by test subject:Work generated by test subject:

300 Watts300 Watts Test Cycle: Test Cycle:

Measure initial vital signs and core body Measure initial vital signs and core body temperatures.temperatures.

Donning of equipmentDonning of equipment Repeating cycles of work and rest Repeating cycles of work and rest Make final measurements.Make final measurements.

Age/Gender/Weight:Age/Gender/Weight: The age group should be focused in the range of 20-The age group should be focused in the range of 20-

30 years old as provided by the sponsor.30 years old as provided by the sponsor.

RequirementsRequirements Mechanical Re-DesignMechanical Re-Design::

Alteration to the prototype:Alteration to the prototype: Comfort/DurabilityComfort/Durability PCM Alignment: Maximize Surface PCM Alignment: Maximize Surface

AreaArea Fastening: Easy to put on and take offFastening: Easy to put on and take off

RequirementsRequirements PCM OptimizationPCM Optimization::

Research Alternative PCM for CoolPac Research Alternative PCM for CoolPac Device:Device:

Attempt to meet sponsors PCM Attempt to meet sponsors PCM needs:needs:

Latent Heat of Fusion: 70-75 Latent Heat of Fusion: 70-75 Wh/kgWh/kg

Melting Temerpatrue: 25-32°CMelting Temerpatrue: 25-32°C

BudgetBudget

Price per Phase Change Material padPrice per Phase Change Material pad $3.75 each$3.75 each Need up to 50 pads (to test on arms & Need up to 50 pads (to test on arms &

legs)legs) $3.75*50 = $187.50$3.75*50 = $187.50

Sleeve materialsSleeve materials approx. $50 for cloth/sewing materialsapprox. $50 for cloth/sewing materials approx. $50 for fastening materialsapprox. $50 for fastening materials

Total proposed budget:Total proposed budget: ≈ $300≈ $300

Project FlowProject FlowBackground

research

Consult Sponsor & Ask Questions

Research PCM

Test PCM Material

Properties

Select PCM

Validation Testing of current

prototype

Analyze Results

Discuss design options

(to make better)

Design new prototype

Results as expected?

No

Yes

Discuss with Sponsor

Finalize new design

Create new prototype

Presentation

ConclusionConclusion

Project involves testing and design Project involves testing and design optimizationoptimization

Great potential for financial successGreat potential for financial success Low budget with respect to our Low budget with respect to our

goalsgoals

Questions?Questions?