What Is This Tool?
This unit converter allows you to transform power measurements from kilojoule per minute (kJ/min), a unit expressing energy transfer rate per minute, into horsepower (water), which represents the mechanical power related to moving water against a head in hydraulic systems.
How to Use This Tool?
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Enter the power value in kilojoule per minute (kJ/min)
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Select kilojoule per minute as the input unit and horsepower (water) as the output unit
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Click convert to view the power in horsepower (water)
Key Features
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Converts kilojoule per minute values to water horsepower for engineering applications
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Uses an exact conversion factor for accurate results
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Supports calculations essential for pump sizing, hydraulic power estimation, and HVAC design
Examples
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Convert 10 kJ/min: 10 × 0.0223400885 = 0.2234 horsepower (water)
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Convert 50 kJ/min: 50 × 0.0223400885 = 1.117 horsepower (water)
Common Use Cases
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Estimating mechanical power for pumps in irrigation and municipal water supply systems
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Designing and assessing HVAC system pumping requirements
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Calculating available hydraulic power for micro-hydropower energy projects
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Translating metabolic or energy-based power measurements into hydraulic power for laboratory or industrial processes
Tips & Best Practices
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Verify input values in kilojoule per minute before conversion
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Use converted horsepower (water) values to compare with pump shaft or brake horsepower ratings
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Consider fluid properties and system parameters separately since the conversion assumes theoretical equivalence
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Apply this tool as a guide alongside detailed hydraulic calculations for system design
Limitations
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Kilojoule/minute indicates energy transfer per time but does not directly include hydraulic fluid properties
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Water horsepower depends on flow rate, head, and fluid density which are not accounted for in the conversion alone
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Conversion assumes ideal theoretical conditions and may not capture real-world system efficiencies
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Results are subject to unit system rounding differences and should be validated with engineering judgment
Frequently Asked Questions
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What does kilojoule per minute measure?
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Kilojoule per minute measures power as the rate of energy transfer equal to one kilojoule delivered or consumed each minute.
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What is horsepower (water)?
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Horsepower (water) represents the mechanical power transferred to move water against a specified head, used often in hydraulic and pump engineering.
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Why convert from kilojoule/minute to horsepower (water)?
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Converting helps translate metabolic or energy per time power into mechanical power relevant to hydraulic pump sizing and efficiency estimation.
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Is the conversion exact for all hydraulic applications?
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The conversion indicates theoretical equivalence but does not account for hydraulic parameters or real efficiency losses in systems.
Key Terminology
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Kilojoule per minute (kJ/min)
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A power unit measuring energy transfer of one kilojoule over one minute.
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Horsepower (water)
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Mechanical power required or transferred to move water against a certain head, expressed in horsepower.
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Hydraulic power
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Theoretical mechanical power available in moving a fluid, dependent on flow rate, head, and fluid properties.
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Pump sizing
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The process of selecting appropriate pump power based on required water flow and pressure head.