Self Contained Heated Clothing Team 32-3 Lau Team Advisor: Dr. Lau Team members: Richard Fisher Alexis Ciccarelli Matt Tornetta Lee Trager Conjee Yeung Justin Lee Joseph Conahan

Background Why self contained heated clothing?

Background Negative effects from cold weather exposure Hazards caused by temperature, winds, dampness, and cold water Temporary solutions were not that helpful Multiple layers of clothing Chemical hand and feet warmers Reduce productivity

Background - Heat Loss Alpine Education Guidebook Book2 Although there are outside factors acting on the body, the body itself loses heat. People turn to alternate solutions to retain body heat.

Alternate Solutions Chemical heating: time frame safety issues non-controllable heat Better insulation or more layers: already used same problems too bulky on occasions Take frequent breaks: cuts down productivity not always an option

Criteria Safe Self contained Efficient Able to maintain a stable temperature

Materials - Wool Resists Wrinkles Resists soiling Durable Repels Moisture Retains Shape Resists Flames Wool is comfortable in all seasons

Materials – Nylon/Synthetic polymers Is stronger yet weighs less than any other commonly used fiber. It is elastic and resilient and responsive to heat setting. Fibers are smooth, non-absorbent and dry quickly. Dirt doesn’t cling to this smooth fiber nor is it weakened by chemicals and perspiration. Extensive washing and drying in an automatic dryer can eventually cause piling. Melts at high temperatures

Materials Because of the durability of these fibers when incorporated in certain weaves they can be tear resistant and yet comfortable and cause little agitation. Many other materials can be used to provide comfort for the wearer like elastic bands around the waist and at the cuffs. The suits can also contain padding or extra layering at areas of increased wear.

Insulation Material  Compared to other materials, like wool, fiberglass, polyurethane, and others, thinsulate is the best choice.  Thinsulate can control the temperature held within depending on the thickness of the material.

Insulation  Ideal for trapping insulating and reflecting back the body’s heat.  It does not wear down, even after it is machine washed and/or dried. solutions.3m.com/wps/ portal/3M/en_US/Thins ulateInsulation/Insulatio n/Thinsulate- Products/Thinsulate- Insulation/

Insulation  When thinsulate becomes wet, it still retains it’s strength and performance.  The material absorbs less then 1% of it’s weight in water therefore retaining it’s strength.

Thermal control Requirements Low Power Usable from -20° C to 25 ° C

Thermal Control – Human Controlled Dallas MAX6608 – Thermal Sensor 1.8V $0.59 Potentiometer 0V $1.00

Thermal control – Self Monitoring Dallas MAX6968 – LED display 5.5V but can be turned completely off when not in use $1.04 Dallas DS87C530-QNL – Microprocessor 5V power source plus power 5V backup battery Can be used to control to keep time $18.33 Dallas MAX6608 – Thermal Sensor 1.8V $0.59

Thermal control – Placement

Power Battery pack 25 Dollars Solar power module Charging Wireless charging  Electromagnetic Induction  SplashPad  WildCharge Wired charging  Built in plug

Future Research Adapt many more sensors through out the jacket Separate heating zones into many more strategic sections Obtain stronger batteries to power more sensors and more heating coils.

Future Applications The jacket will contain a heating and cooling system. Heating and cooling pants will be available to accommodate the jacket. Once the batteries are more advanced, cell phone and other chargers may be fitted into a pocket of the jacket or pants.

References Curtis, Rick. “Outdoor Action Guide to Heat & Cold Injuries.” Random House Feb. 16, Raguso, V. “Alpine Educational Guidebook.” “US OSHA Offers Tips to Protect Workers from Cold Weather.” Grain Elevator and Processing Society (GEAPS). Feb, Jan. 30,

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