What Is This Tool?
This tool helps convert thermal conductivity measurements from calorie (th)/second/cm/°C, a cgs-based unit commonly used in materials science, to Btu (IT) inch/hour/sq. foot/°F, a unit widely used in building and HVAC engineering.
How to Use This Tool?
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Enter the thermal conductivity value expressed in calorie (th)/second/cm/°C
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Select the appropriate source and target units
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Execute the conversion to get the equivalent value in Btu (IT) inch/hour/sq. foot/°F
Key Features
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Converts thermal conductivity between calorie (th)/second/cm/°C and Btu (IT) inch/hour/sq. foot/°F units
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Supports legacy data translation into industry-standard units
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Browser-based and easy to use for engineering and design professionals
Examples
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2 calorie (th)/second/cm/°C converts to approximately 5801.93 Btu (IT) inch/hour/sq. foot/°F
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0.5 calorie (th)/second/cm/°C converts to approximately 1450.48 Btu (IT) inch/hour/sq. foot/°F
Common Use Cases
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Reporting thermal conductivity in older engineering references using cgs units
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Specifying insulation materials' thermal performance in building product datasheets
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Calculating steady-state heat transfer in walls, roofs, and glazing for HVAC energy modeling
Tips & Best Practices
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Verify the unit context carefully due to differences in temperature scales and unit dimensions
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Use the tool for steady-state and linear heat flow conditions to ensure validity
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Double-check converted values to avoid large errors caused by the substantial conversion factor
Limitations
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Conversion assumes steady-state heat transfer and linear thermal gradients only
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Large difference in unit scales requires careful handling to prevent errors
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Differences between °C and °F temperature units demand attention for accuracy
Frequently Asked Questions
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Why convert calorie (th)/second/cm/°C to Btu (IT) inch/hour/sq. foot/°F?
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To translate thermal conductivity data from older cgs-based measurements into units commonly used in building and HVAC industries, enabling compatibility with current standards.
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Is this conversion suitable for transient heat transfer scenarios?
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No. The conversion assumes stable steady-state heat flow and linear temperature gradients, so it may not be accurate in transient or nonlinear conditions.
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What should I pay attention to when converting between these units?
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You should consider the differences in temperature scales and unit dimensions, as well as carefully handle the large conversion factor to avoid significant errors.
Key Terminology
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calorie (th)/second/cm/°C
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A unit of thermal conductivity based on heat flow in thermochemical calories per second through a 1 cm thickness and 1 cm² area for a 1 °C temperature difference.
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Btu (IT) inch/hour/sq. foot/°F
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A unit of thermal conductivity defined as the British thermal unit transferred per hour through a 1-inch thickness and 1 square foot area for a 1 °F temperature difference.
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Thermal conductivity
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A physical property measuring a material's ability to conduct heat.