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Flue Gas Density Equation:
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Flue gas density is a critical parameter in combustion engineering and environmental science that describes the mass per unit volume of exhaust gases produced from combustion processes. It plays a vital role in designing ventilation systems, calculating emissions, and optimizing combustion efficiency.
The calculator uses the ideal gas law equation:
Where:
Explanation: The equation calculates gas density based on the ideal gas law, which assumes gases behave ideally under specified conditions of temperature and pressure.
Details: Accurate flue gas density calculation is essential for designing efficient combustion systems, calculating stack gas velocities, determining buoyancy effects, and ensuring proper operation of pollution control equipment.
Tips: Enter molecular weight in g/mol, pressure in Pascals (Pa), and temperature in Kelvin (K). All values must be positive and valid for accurate results.
Q1: What is the typical molecular weight of flue gas?
A: Typical flue gas molecular weight ranges from 28-30 g/mol, depending on fuel composition and excess air levels.
Q2: Why use Kelvin for temperature?
A: Kelvin is the absolute temperature scale required by the ideal gas law to ensure accurate calculations.
Q3: How does temperature affect flue gas density?
A: Density decreases as temperature increases, following the inverse relationship in the ideal gas law.
Q4: What are common pressure ranges for flue gas calculations?
A: Flue gas systems typically operate at near-atmospheric pressure, around 101,325 Pa at sea level.
Q5: When is the ideal gas law not accurate for flue gases?
A: At very high pressures or very low temperatures where real gas behavior deviates from ideal assumptions.