Category: MATLAB

Learning Tool for Determination of H2O (water/steam) Properties.  Download this user-tool to learn about phase-determination of water/steam.  Exercise #1:  User specify (P,T) pair.  Exercise #2 User specify (P or T) and (v or u or h or s) to determine phase.

Diesel Cycle Analysis:  User enters compression process beginning state: (P,T), compression ratio, maximum cycle temperature.  Use air with variable specific heat to determine thermal efficiency, cutoff ratio, and mean effective pressure.

Otto Cycle Analysis:  User enters compression process beginning state: (P,T), compression ratio, maximum cycle temperature.  Use air with variable specific heat to determine thermal efficiency and mean effective pressure.

Brayton Cycle Analysis:  User enters compressor inlet (P,T), compressor outlet pressure, turbine inlet temperature, compressor and turbine efficiencies.  Use air with variable specific heat to determine thermal efficiency.

Classic analysis of a Rankine steam power plant with throttle (P,T), condenser (P), turbine efficiency and pump efficiency defined by user.

Determine the flow in a pipe with the head loss known.  Demo problem is for water flowing in a horizontal steel pipe.  Water properties determined via function call.  Reynolds Number determined via function call. Iterative solution for flow uses the bisection method via MATLAB function call.

Determine the head loss in a pipe with the flow known.  Demo problem is for water flowing in a steel pipe.  Water properties determined via function call.  Reynolds Number determined via function call.

Thermophysical properties of saturated liquid water (applies to all compressed liquid water), depending on temperature only:  Cp (specific heat), mu (dynamic viscosity), k (thermal conductivity), Pr (Prandtl Number), rho (density), specific volume, and surface tension.

Library of MATLAB tools offered on Jay’s Toolbox website.

Thermophysical properties of air that depend on temperature only:  Cp (specific heat), mu (dynamic viscosity), k (thermal conductivity), Pr (Prandtl Number).  Also, rho (density) using the ideal gas equation of state:  rho = P / (R T).