What Is This Tool?
This tool converts heat flux density values from calorie (IT)/hour/square centimeter, a unit used for measuring heat transfer rate per unit area in small-scale or older literature contexts, into Btu (IT)/minute/square foot, a unit commonly applied in HVAC and building performance analysis. It supports accurate translation of thermal measurements between these two distinct unit systems.
How to Use This Tool?
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Enter the heat flux density value in calorie (IT)/hour/square centimeter
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Select calorie (IT)/hour/square centimeter as the input unit
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Choose Btu (IT)/minute/square foot as the output unit
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Click convert to view results
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Use the conversion formula or rate for manual calculations if needed
Key Features
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Supports conversion between calorie (IT)/hour/square centimeter and Btu (IT)/minute/square foot
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Uses exact defined conversion rate for precise results
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Browser-based and easy to use for quick conversions
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Helps bridge older engineering literature units with modern HVAC units
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Provides clear definitions and use cases for both units
Examples
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5 calorie (IT)/hour/square centimeter = 0.3072242125 Btu (IT)/minute/square foot
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10 calorie (IT)/hour/square centimeter = 0.614448425 Btu (IT)/minute/square foot
Common Use Cases
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Reporting localized heat loss or gain in laboratory thermal insulation tests
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Specifying heat flux from heaters or radiative sources in older engineering references
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Calculating heat loss or gain through building envelope components for HVAC design
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Rating surface heat transfer in heating and cooling system components
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Evaluating thermal performance and solar heat gain in insulation and fenestration studies
Tips & Best Practices
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Verify the use of International Table calories and BTU to ensure unit consistency
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Be aware of the scale difference when converting area and time units
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Use the exact conversion factor to avoid errors in thermal performance assessments
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Cross-check results when converting data from older literature or different standards
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Consider the non-SI nature of calorie (IT)/hour/square centimeter when comparing with SI units
Limitations
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Calorie (IT)/hour/square centimeter is a non-SI unit and less common in modern standards
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Accuracy depends on precise definitions of International Table calories and BTU values
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Scale differences in area (cm² to ft²) and time (hour to minute) must be carefully handled
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Variations in unit definitions across different standards can affect conversion consistency
Frequently Asked Questions
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What does calorie (IT)/hour/square centimeter measure?
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It measures the rate of heat transfer per unit area using International Table calories delivered per hour across one square centimeter.
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In what industries is this conversion commonly used?
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This conversion is used in thermal conductivity testing, HVAC engineering, building envelope design, insulation evaluation, and material thermal performance assessments.
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Why is it important to use exact conversion factors?
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Because calorie (IT)/hour/square centimeter and Btu (IT)/minute/square foot differ in scale and unit definitions, exact conversion factors prevent misinterpretation and inaccuracies in thermal measurements.
Key Terminology
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Calorie (IT)/hour/square centimeter
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A non-SI unit of heat flux density representing International Table calories transferred per hour across a square centimeter.
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Btu (IT)/minute/square foot
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A unit of heat flux density quantifying International Table British thermal units transferred per minute through one square foot.
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Heat flux density
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The rate of heat energy transfer through a unit area.