What Is This Tool?
This converter transforms power values measured in water horsepower—a unit describing mechanical power for moving water—into gigajoule per second (GJ/s), an SI unit representing very large continuous power rates such as gigawatts.
How to Use This Tool?
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Enter the power value in horsepower (water) in the input field
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Select horsepower (water) as the input unit and gigajoule per second [GJ/s] as the output unit
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Click convert to see the equivalent power in gigajoule per second
Key Features
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Converts water horsepower to gigajoule per second using a standardized conversion factor
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Expresses hydraulic power in widely recognized SI units suitable for scientific and industrial contexts
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Useful for hydropower, municipal water systems, and energy infrastructure planning
Examples
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10 horsepower (water) converts to 7.46043e-6 GJ/s
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100 horsepower (water) converts to 7.46043e-5 GJ/s
Common Use Cases
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Sizing pumps for irrigation and municipal water supply systems
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Estimating available hydraulic power for micro-hydropower turbines
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Comparing hydraulic power with electrical or thermal power at gigawatt scales
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Designing piping and pumping systems to meet specific flow and head requirements
Tips & Best Practices
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Ensure accurate measurement of flow rate, head, and specific gravity for reliable input values
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Use gigajoule per second units when dealing with very large power quantities for clarity
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Consider the context carefully when applying this conversion, especially for small-scale power values
Limitations
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Results are very small numerically due to the large size of gigajoule per second units relative to water horsepower
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Accurate conversion depends on precise hydraulic power calculations and measurement assumptions
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Gigajoule per second is uncommon for small power levels and may be inappropriate in those contexts
Frequently Asked Questions
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What is water horsepower?
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Water horsepower indicates the theoretical mechanical power needed to move water against a defined head, calculated considering flow rate, head, and specific gravity.
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Why convert water horsepower to gigajoule per second?
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Converting to gigajoule per second allows expressing hydraulic power in standard SI units suited for large-scale scientific and industrial energy analyses.
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Is gigajoule per second suitable for small power measurements?
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No. Gigajoule per second represents very large power levels and is rarely appropriate for measuring small-scale power values.
Key Terminology
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Water Horsepower
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Theoretical mechanical power to move water against a head, calculated with flow rate, head, and specific gravity.
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Gigajoule per second [GJ/s]
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Unit of power equal to 10^9 joules per second, used to express very large continuous power rates.
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Hydraulic Power
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Power available from water flow used in pumps, turbines, and other hydraulic machinery.