Preventative Heatstroke Cooling Shelter:
ASHRAE Design Competition
Andres Gomez
Errick Santana
Orangel Velazquez
EML 4551 Ethics and Design Project Organization
FIU Department of Mechanical Engineering
Miami, FL
Problem Statement
• Heatstroke
• Symptoms
• Treatments
• Statistics
• 675 people die due to heat exhaustion yearly
• Average temperature
• School occurrences
Preventative Measurements
• Apparatuses:
• Kestrel Heat Stress Meter
• Cooling Vest and accessories
• Cooling Centers around the country
Project Objective
• Build portable and reusable cooling shelter
• Shelter design must have two separate modes for cooling
• For dry hot climate
• For humid hot climate
• Achieve desired temperature in 10 minutes and maintain for an hour
• All cooling must be self generated
Project Objective
• Cost Efficiency
• Low power usage
• Low cost materials
• Reusable water
• Environmental Impact
• Water waste keep to minimum
• Materials
Design Alternative 1
• Advantages
• Easily collapsible
• Conical design creating vortex of air
flow.
•
Lightweight
• Disadvantages
• Restricts airflow at top
• Needs support to stand
Design Alternative 2
• Advantage
• Sturdy Design
• Easier to setup
• Portable
• Obstacles
• Difficult to install mist water flow system
• Bulky in storage
Proposed Design
• Advantage
• Lightweight <150lbs
• Easy hanging setup
• Portable
• Creates vortex air flow
• Obstacles
• Creating solid 3-pt buckle connection
• Securing mist water flow system
• Diameter = 3ft
• Height = 5.5 ft
Global Design Integration
• The shelter requires power from an
outlet
• Two different voltages and frequencies
around the world
• Device will accommodate to all global
standards
Global Design Integration
• There are 15 different types of
electrical outlet plugs around the
world
• The cooling shelter will accommodate
to all type of power outlets
Global Design Integration
• Shelter composed of various components
(fan, motor, mist water flow system, cooling Peltier plates)
• All parts can be individually replaced
• Simple end user replacement of all major components
• Use of cooling equipment is immediately ready for easy use when
connected
Engineering Standards
• The ASHRAE Handbook (American Society of Heating, Refrigerating and
Air-Conditioning Engineers)
• HVAC (Heating, ventilation and cooling) standards for components, and
mechanism
• ASHRAE 55
• Establishes requirements to be meet when creating thermal indoor environments
for human use .
• OSHA (Occupational Safety and Health Administration) Heat Index Guide
• Provides information and standards of safe temperatures for individuals working
outside.
• Tables and charts to determine the likelihood of suffering a heat stroke based on
outside conditions
Conclusion
• Three alternate designs were developed
• A final proposed design was completed
• All working components of the cooling shelter had been determined
(Fan, Mist water flow system, Fabric, Hanging strap system )
Future Work
• Flow Analysis and simulation of cooling shelter
• Calculate cooling Peltier plate efficiency and reliability
• Evaluate main cooling fan for optimal speed and dependability
• Analysis and simulation of fabric’s reflective performance under the sun
• Final build and testing of cooling shelter under various different
environments