7,936.641439
1
kg/s
7,936.641439
1
kg/s
The Mass Flow Rate Converter converts between all common units of mass flow rate, including kilograms per second, pounds per hour, metric tons per hour, and more. Mass flow rate is a fundamental parameter in chemical engineering, thermodynamics, combustion systems, and industrial process control.
Unlike volumetric flow rate, mass flow rate is independent of temperature and pressure, making it the preferred measurement in processes where fluid density changes significantly. Steam systems, gas pipelines, chemical reactors, and fuel injection systems all rely on mass flow rate for accurate process control and energy calculations.
The SI unit for mass flow rate is kilograms per second (kg/s), but industrial applications commonly use kg/hr, metric tons per hour (t/hr), pounds per hour (lb/hr), and short tons per hour. Our converter handles 10 common units with precision, using the exact pound-to-kilogram conversion factor of 1 lb = 0.45359237 kg.
Mass flow rate is related to volumetric flow rate by the equation mass flow = density x volumetric flow. For water at standard conditions (4°C), density is 1000 kg/m³, so 1 L/s = 1 kg/s. For other fluids, density must be known for conversion between mass and volume flow rates.
Common industrial mass flow rates: a household gas meter reads about 0.5–2 kg/hr of natural gas, a car engine consumes about 10–30 kg/hr of fuel at highway speed, and a large power plant boiler may process 500–2,000 t/hr of steam.
The converter works by first converting the input value to kg/s as the intermediate unit, then converting from kg/s to the target unit. Key factors: 1 lb = 0.45359237 kg (exact), 1 short ton = 907.18474 kg, 1 metric ton = 1000 kg. Time conversions: 60 s/min, 3600 s/hr.
Mass flow rate results are unaffected by temperature and pressure changes, making them more reliable for process engineering than volumetric flow rates. Always verify that the correct unit system (metric vs. imperial) is used when specifying equipment.
Inputs
Results
1 kg/s = 7936.6 lb/hr
Inputs
Results
10 t/hr = 166.67 kg/min
Mass flow rate is the mass of substance passing through a cross-section per unit time. It is typically measured in kg/s, kg/hr, or lb/hr.
Mass flow rate measures mass per time (kg/s), while volumetric flow rate measures volume per time (L/s). Mass flow is independent of temperature and pressure, making it preferred for gases and compressible fluids.
Multiply kg/s by 7936.64. The exact calculation: 1 kg/s x (1/0.45359237 lb/kg) x 3600 s/hr = 7936.64 lb/hr.
Coriolis flow meters directly measure mass flow. Thermal mass flow meters and differential pressure meters with density compensation are also used.
Combustion calculations require fuel and air mass flow rates to determine stoichiometry, heat release, and emissions. Volume changes significantly with temperature, but mass remains constant.
A typical kitchen faucet delivers about 8-10 L/min of water, which equals about 0.133-0.167 kg/s (since water density is approximately 1 kg/L at room temperature).
Use the formula: mass flow = volumetric flow x density. For example, 10 L/s of water (density 1000 kg/m3) = 10 kg/s. For gases, density depends on temperature and pressure.
Small industrial boilers produce 1-10 t/hr of steam. Large power plant boilers can produce 500-2,000 t/hr or more.
Chemical engineers commonly use kg/hr or kg/s for mass flow rate and m3/hr or L/min for volumetric flow rate, depending on the application.
Coriolis meters typically achieve 0.1-0.5% accuracy for liquids and 0.5-1% for gases. They directly measure mass flow without needing density compensation.
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