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Mining Publication: Estimation of Metabolic Heat Input for Refuge Alternative Thermal Testing and Simulation
Keywords: Carbon dioxide Heat Oxygen Refuge chambers Temperature
Original creation date: August 2018
Authors: TE Bernard, D Yantek, E Thimons
Peer Reviewed Journal Article - August 2018
Go to Web Page
NIOSHTIC2 Number: 20052363
Min Eng 2018 Aug; 70(8):50-54
Refuge alternatives provide shelter to miners trapped underground during a disaster. Manufacturers must demonstrate that their refuge alternatives meet the U.S. Mine Safety and Health Administration (MSHA) requirements for oxygen supply, carbon dioxide removal, and management of heat from the occupants and mechanical/chemical systems. In this study, miner size and activity level were used to determine the metabolic heat rate, oxygen requirements and carbon dioxide generation that are representative of miners in a refuge situation. A convenience sample of 198 male miners was used for the distribution of current U.S. coal miners, and the composite 95th percentile height and weight were determined to be 193 cm (76 in.) and 133 kg (293 lb). The resting metabolic rate (RMR) was determined to be representative of activity level in a refuge alternative. The highest likely metabolic heat generation ranged from 113 to 134 W, depending on occupancy. The highest required oxygen supply and carbon dioxide removal were estimated to be 23 L (0.81 cu ft) of oxygen per hour per person and 20 L (0.71 cu ft) of carbon dioxide per hour per person, which means the margin of safety is 50 percent or more compared with the MSHA requirements. The information on metabolic heat generation can be used to assess refuge alternative thermal environments by testing or simulation. The required oxygen supply and carbon dioxide removal can be used to assess refuge alternative requirements.
First page of Estimation of Metabolic Heat Input for Refuge Alternative Thermal Testing and SimulationPeer Reviewed Journal Article - August 2018
Go to Web Page
NIOSHTIC2 Number: 20052363
Min Eng 2018 Aug; 70(8):50-54
See Also
Analysis of Heat Loss Mechanisms for Mobile Tent-Type Refuge Alternatives
Announcing Two New Sister Publications on Refuge Alternatives
Cryogenic Life Support Technology Development Project
Development of Heat Mitigation Systems for Refuge Alternatives used in Underground Coal Mines
Effect of Coal Type and Oxyfuel Combustion Parameters on Pulverised Fuel Ignition
Effects of Mine Strata Thermal Behavior and Mine Initial Temperatures on Mobile Refuge Alternative Temperature
Investigation of Temperature Rise in Mobile Refuge Alternatives
Performance Comparison of Rescue Breathing Apparatus
Portable Refuge Alternatives Temperature and Humidity Tests
Temperature Rise Within a Mobile Refuge Alternative (RA) - Experimental Investigation and Model Validation
Page last reviewed: October 29, 2018
Page last updated: October 29, 2018
Content source: National Institute for Occupational Safety and Health, Mining Program
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