Environmental Engineering Reference
In-Depth Information
Temperature (T)- Enthalpy (H) Diagram
T
Hot composite curve
Cold composite curve
30
20
Cold composite curve is not completely below the hot composite curve
H
Figure 4. Temperature (T) Enthalpy (H) Diagram 1
Temperature (T- Enthalpy (H) Diagram
Minimum Heating Utility
T
Qh=300 kW
Hot composite curve
Cold composite curve
Minimum Temperature Approach
30
20
Qc=150 kW
Minimum Cooling Utility
H
Figure 5. Temperature (T) Enthalpy (H) Diagram 2
