Condensate load from heating air is the amount of water vapor that condenses into liquid water when air is heated. When air is heated, its capacity to hold moisture increases. The condensate load is the moisture that exceeds the air's capacity to hold water vapor, leading to the formation of liquid water.
Condensate Load from Heating Air Formula |
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\( m_c \;=\; \dfrac{ 60 \cdot c_a \cdot \gamma_a \cdot Q_a \cdot \left( T_{out} - T_{in} \right) }{ Q_{ls} }\) (Condensate Load from Heating Air) \( c_a \;=\; \dfrac{ m_c \cdot Q_{ls} }{ 60 \cdot \gamma_a \cdot Q_a \cdot \left( T_{out} - T_{in} \right) }\) \( \gamma_a \;=\; \dfrac{ m_c \cdot Q_{ls} }{ 60 \cdot c_a \cdot Q_a \cdot \left( T_{out} - T_{in} \right) }\) \( Q_a \;=\; \dfrac{ m_c \cdot Q_{ls} }{ 60 \cdot c_a \cdot \gamma_a \cdot \left( T_{out} - T_{in} \right) }\) \( T_{out} \;=\; T_{in} + \dfrac{ m_c \cdot Q_{ls} }{ 60 \cdot c_a \cdot \gamma_a \cdot Q_a }\) \( T_{in} \;=\; T_{out} - \dfrac{ m_c \cdot Q_{ls} }{ 60 \cdot c_a \cdot \gamma_a \cdot Q_a }\) \( Q_{ls} \;=\; \dfrac{ 60 \cdot c_a \cdot \gamma_a \cdot Q_a \cdot \left( T_{out} - T_{in} \right) }{ m_c }\) |
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| Symbol | English | Metric |
| \( m_c \) = Condensate Load | \(lbm\) | \(kg\) |
| \( c_a \) = Air Specific Heat | \(Btu \;/\; lbm-F\) | \(kJ \;/\; kg-K\) |
| \( \gamma_a \) (Greek symbol gamma) = Air Specific Weight | \(lbf \;/\; ft^3\) | \(N \;/\; m^3\) |
| \( Q_a \) = Air Flow Rate | \(ft^3 \;/\; sec\) | \(m^3 \;/\; s\) |
| \( T_{out} \) = Air Outlet Temperature | \(^\circ F\) | \(^\circ K\) |
| \( T_{in} \) = Air Inlet Temperature | \(^\circ F\) | \(^\circ K\) |
| \( Q_{ls} \) = Steam Latent Heat | \(Btu \;/\; lbm\) | \(kJ \;/\; kg\) |
