What Is This Tool?
This unit converter helps you change measurements of power from pound-foot per hour, an imperial mechanical unit, to calorie (IT) per hour, a thermal power unit. It is designed for converting low-level power values used in legacy mechanical systems, calorimetry, and heat-transfer evaluations.
How to Use This Tool?
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Enter the numerical value in pound-foot per hour you wish to convert.
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Select the source unit as pound-foot/hour [lbf*ft/h].
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Choose the target unit calorie (IT)/hour [cal/h].
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Click convert to view the equivalent power in calorie (IT) per hour.
Key Features
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Converts between pound-foot per hour and calorie (IT) per hour units.
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Utilizes defined conversion rates based on joule equivalencies.
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Supports applications in historical unit interpretation and thermal testing.
Examples
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Convert 5 lbf*ft/h: 5 × 0.3238315535 = 1.6191577675 cal/h.
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Convert 10 lbf*ft/h: 10 × 0.3238315535 = 3.238315535 cal/h.
Common Use Cases
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Expressing very low mechanical power in outdated imperial units.
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Reporting small heat transfer rates during laboratory calorimetry.
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Interpreting legacy technical specifications using calories.
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Estimating power output from hand-cranks or slow winches.
Tips & Best Practices
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Ensure the power values are within low-level ranges where these units apply.
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Use this conversion for translation between mechanical work and thermal energy contexts.
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Verify the relevance of calorie unit use in your specific thermal measurement setup.
Limitations
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Only suitable for very small power quantities.
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Mechanical work and thermal energy units differ and require careful interpretation.
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Conversion approximates joule and calorie definitions and is not for high-precision needs.
Frequently Asked Questions
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What does one pound-foot per hour represent?
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It is an imperial unit of power indicating the rate of mechanical work done as one foot-pound force per hour.
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Why convert pound-foot/hour to calorie (IT)/hour?
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This helps translate mechanical power expressed in imperial units into thermal power units used in calorimetry and heat flow measurements.
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Is this conversion accurate for high precision calculations?
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No, due to the small power quantities and approximations in unit definitions, this conversion is not ideal for high-accuracy requirements.
Key Terminology
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Pound-foot/hour (lbf·ft/h)
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An imperial unit expressing mechanical power as one foot-pound force of work done per hour.
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Calorie (IT)/hour (cal/h)
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A unit of power defined by the rate of energy transfer equal to one International Table calorie per hour.
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Joule
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The SI unit of energy used as a reference in defining both power units during conversion.