Petro-SIM 7.4 improvements to Unit Operations

Weighted LMTD calculation

• With mixed phase streams, the heat exchanger is now divided into sections and the LMTD for each zone is calculated and overall averaged
• This new feature improves the accuracy of the exchanger duty calculations
• For existing simulation cases this new feature is not active, the User has the ability to enable it

New weighted LMTD calculation option

Modified Equal percentage flow characteristic

The valve in Petro-SIM has a new flow characteristic option, the modified equal percentage flow

New mofified equal percentage

Water Electrolyser

We are introducing this new unit operation, the water electrolyser produces hydrogen (and oxygen) from water and three types of electrolysers are available:

• Proton Exchange Membrane electrolyser

PEM Electrolyser

• Alkaline electrolyser

Alkaline Electrolyser

• Solid Oxide electrolyser

Solid Oxide Electrolyser

New tool to visualize compressor, expander and pump performance curves

A plot of the head and efficiency vs. flow rate is shown next to the table of values that the User enters for rotating equipment

Performance curve plot

New modified equal percentage valve model

This new flow characteristic model is now available in the valve unit operation

New Modified Equal Percentage flow characteristic