What Is This Tool?
This converter transforms heat flux density measurements from calorie (th)/second/square centimeter, a unit based on thermochemical calories and surface area, into erg/hour/square millimeter, a CGS metric-based unit. It supports conversions needed for interpreting thermal data across different measurement systems.
How to Use This Tool?
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Enter the heat flux density value in calorie (th)/second/square centimeter
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Select the source and target units as calorie (th)/s/cm² to erg/hour/mm²
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Click the convert button to see the result in erg/hour/square millimeter
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Use the conversion result to analyze or compare thermal data across units
Key Features
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Converts between legacy thermochemical calorie-based units and CGS-derived erg units
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Based on an accurate conversion rate of 1 calorie (th)/s/cm² equaling about 1.50624×10⁹ erg/hour/mm²
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Supports heat flux density measurements used in laboratory, materials testing, and astrophysics
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Browser-based and easy to use without requiring installation
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Enables translation of historical and experimental thermal data across unit systems
Examples
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Convert 2 calorie (th)/s/cm² to erg/hour/mm²: 2 × 1,506,239,999.9979 = 3,012,479,999.9958 erg/hour/mm²
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Convert 0.5 calorie (th)/s/cm² to erg/hour/mm²: 0.5 × 1,506,239,999.9979 = 753,119,999.999 erg/hour/mm²
Common Use Cases
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Laboratory calorimetry and small-scale surface heating studies reported in calories
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Fire and radiative heat-flux testing using older or historical units
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Thermal characterization of microelectronic components using CGS units per square millimeter
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Comparison of thermal data in materials testing from legacy to modern unit systems
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Analyzing astrophysical radiative flux data expressed in CGS-derived units
Tips & Best Practices
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Ensure consistent units for area and time before converting to avoid errors
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Use steady-state flux measurements for reliable conversion outcomes
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Verify the context of measurement to apply the correct unit system
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Cross-check converted values when dealing with highly different unit scales
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Use this tool to facilitate comparisons between historical and current heat flux data
Limitations
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Large differences in scale and mixed unit systems require careful handling
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Conversions assume consistent reporting of time intervals and area units
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Measurement variations or transient conditions can affect conversion accuracy
Frequently Asked Questions
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What does calorie (th)/second/square centimeter measure?
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It measures heat flux density as the rate of thermochemical calorie energy transferred per second across one square centimeter.
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Why convert from calorie (th)/s/cm² to erg/hour/mm²?
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This conversion helps translate heat flux density data between legacy thermochemical calorie units and CGS-based ergs, supporting comparisons across scientific fields.
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Are there challenges when converting these units?
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Yes, differences in time units, area scales, and energy definitions require careful unit management to ensure accurate results.
Key Terminology
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Calorie (th)/second/square centimeter
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A heat flux density unit based on the thermochemical calorie representing energy transferred per second over one square centimeter.
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Erg/hour/square millimeter
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A heat flux density measure using energy in ergs per hour through one square millimeter, combining CGS energy with metric time and area.
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Heat Flux Density
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The rate of heat energy transfer per unit area, typically expressed in units combining energy, time, and surface area.