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 | \(Btu \;/\; lbm\) | \(kJ \;/\; kg\) |
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.
The condensate load can be a consideration in various systems, such as HVAC systems. Excessive condensate can lead to issues such as mold growth, corrosion, and damage to equipment. Therefore, managing condensate is an important aspect of designing and maintaining heating systems. It's important to note that the specific condensate load will depend on factors such as the initial moisture content of the air, the temperature to which the air is heated, and the relative humidity. Engineers and designers often take these factors into account when designing heating systems to ensure efficient operation and to prevent issues related to excess condensate.
