저장 열 에너지 시험 장비

Stored Energy Test Device(SET)

저장 열 에너지 시험, 직물 열 에너지, 피부 화상, Stored Energy Test Device

Product

제품특징

The Stored Energy Test (SET)

device evaluates the potential for skin burns that may be associated with a fabric’s stored thermal energy.

Firefighter protective clothing materials exposed to moderate levels of radiant heat can cause serious burn injuries when compressed against the skin. The amount of energy stored in a protective fabric and transferred to the wearer requires specific exposure conditions and complex analysis – parameters that the SET device was developed to isolate, reproduce, and quantify as per ASTM F2731.

The SET device provides a standardized procedure and controlled radiant heat conditions to generate repeatable measurements of heat storage and transfer in protective fabric materials. These measurements allow for rapid characterizing and ranking of materials, and, through the SET device’s integrated burn model software, provides a prediction of possible burn injury.

The SET device includes a radiant heat source, specimen holder, heat flux transducer, pneumatically actuated transfer tray with water-cooled carriage, compressor, DAQ/control system, and burn injury analysis program.

Associated test methods

• ASTM F2731

Features at a glance

• Black body radiant panel heat source (adjustable temperature) produces radiant energy matching the spectral density of a structural fire.
• Water-cooled sample carriage, electronically actuated for precise control of exposure time over the heat source.
• Pneumatic compressor applies an adjustible pressure load to the specimen via a low conductivity mandrel.
• Automatic or manual test operation.
• Compact size allows unit to be easily moved into and out of a fume hood.
• Burn results are shown as a real-time numerical and graphical display. Estimated time to second degree burn following exposure is also calculated.
• System includes a new Dell laptop computer installed with ThermDAC control software with integrated Burn Model to predict the severity of skin damage.

Specifications

Standard

• Radiant heat panel adjustable from 0-0.25 cal/cm2
• Heat panel can be operated in two modes: Temperature control or Heat Flux control
• Water-cooled carriage holds the test specimen and a water-cooled heat flux transducer
• Pneumatically controlled compression system
• Sample compression force can be adjusted using a precision regulator located on the front of the device
• Specimen size: 6 x 6” (15×15 cm). Spacers of various thicknesses are provided to help minimize edge compression of the materials being tested.
• Signal conditioning electronics and USB interface
• Power and control cabling
• Current model Dell laptop computer, includes ThermDAC control software with Burn Model

Options

• Chiller
• Additional Heat Flux transducer
• Additional specimen holders
• Protective shield
• Compression test device

Range / Performance / Accuracy

• ±1.0°C temperature measurement
• ±3% radiant heat flux measurement
• The SET device has been designed to operate with the radiant heating source in a vertical orientation.

Model Information

• Model Size: 24.5 x 17 x 14”H (62 x 43 x 36 cm)
• Min. Operating Space: 36 x 20 x 16”H (92 x 51 x 41cm)
• Power Requirements: 208-265 VAC, 50/60Hz, Single-phase. Maximum nominal current 5 Amps
• Compressed Air: Uses clean/dry air supplied at 70-90 PSI
• Cooling Water Requirement: water supply to device regulated to 32.5°C with a flowrate of 100 ml/min or greater

ThermDAC Control Software
ThermDAC is a Windows-based application providing full device control, fault detection, data logging and analysis capabilities:

• Define non-standard test conditions and custom tolerance criteria
• View multiple device and ambient variables on a single graph screen
• Apply real-time statistical functions to test data over any user-selected time range
• Burn results are shown as a real-time numerical and graphical display.

Service
All systems come with a one year warranty. Please ask about these service options:

• Startup installation and training
• Extended warranty
• Annual Service Care Package—a periodic maintenance and service contract designed to keep your Thermetrics equipment calibrated and in top operating condition