Engineering Equation Solver Ees Cengel Thermo Iso ★ Quick & Fresh
"1st law" Q_in - W_b = m*(u2 - u1) Rule: ( v_1 = v_2 ), ( W_b = 0 ), ( Q = \Delta U ).
EES is case-insensitive but uses ^ for power. 3. Implementing Iso-Processes in EES a) Isobaric (( P = constant )) Cengel rule: ( P_1 = P_2 ), ( Q - W_b = \Delta H ) (for closed system, often ( W_b = P\Delta V )). Engineering Equation Solver EES Cengel Thermo Iso
Q_in = m*(u2 - u1) "W=0" Cengel use: Often for ideal gas (( Pv = RT )) or phase change (but constant T in two-phase region implies constant P). "1st law" Q_in - W_b = m*(u2 -
| Cengel Table | EES function | |--------------|---------------| | Saturated water T | v_f = volume(Water, T=T_sat, x=0) | | Saturated water P | h_g = enthalpy(Water, P=P_sat, x=1) | | Superheated | v = volume(R134a, T=T, P=P) | | Compressed liquid approx | h(T,P) ≈ h_f@T in EES: h = enthalpy(Fluid$, T=T, P=P) (EES corrects) | Implementing Iso-Processes in EES a) Isobaric (( P
"Steady-flow compressor work" w_comp_in = h2 - h1 "kJ/kg"
