Moisture Content
Mixing Streams
Heating
Cooling
Humidification
Air Dehydration
Solids Drying
Multistage Compression

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Examples

MoistAirTab™ Example 3 - Heating

Example 3

Moist air, saturated at 2°C, enters a heating coil at a rate of 10 m³/s. Air leaves the coil at 40°C. Find the required rate of heat addition.

Solution

The solution is presented below as a table generated from Excel. The gray shaded areas represent the input data.

Soution:	Units	Inlet	Outlet
Total pressure	bar	1.01325	1.01325
Dry bulb temperature	°C	2	40
Wet bulb temperature	°C	2	40.00
Volume flow rate	m3/s	10.00	11.39

Humidity ratio	kg_w/kg_{dry air}	0.0044	0.0044
Volume of moist air	m³/kg_{dry air}	0.7845	0.8932
Mass flowrate (dry air)	kg_{dry air}/s	12.7463	12.7463
Enthalpy of moist air	kJ/kg_{dry air}	12.98	51.53
Total enthalpy flow	kJ/s	165.45	656.86

Heat added	kW		491.42