Jehar & Associates

15120 Paradise View Dr. * Willis, TX 77318-3200

Engineering Software For Engineers


WinHeat© Thermal Rating And Analysis:
Rates most direct fired heaters, convections, unfired and supplementary fired recovery units, HRSG's, and other similar equipment with process on tube side.
GridData© Pressure Loss & Flow Regime:
Analyzes fired heaters on a tube by tube basis, calculating pressure drop, flow regime, vaporization, etc.
WinBurn© Combustion & Gas Properties:
Provides products of combustion, physical properties, heater thermal efficiency, heat balances, supplementary firing.
WinFlow© Ducting, Piping & Stack Analysis:
Provides point by point flow analysis for duct systems such as air preheat and HRSG systems, piping flow analysis, and heater stack draft calculations.
WinLoss© Insulation Heat Loss Analysis:
Calculates heat loss and temperature analysis for up to ten layers of insulation. User may add materials to data file with as few as three data points.
WinWall© Wall Thickness Calculation:
Calculates required wall thickness for heater tubes based on API RP530 or ASME Section I. Stress curves or tables are built in for most common pipe materials.
WinProp© Properties Grid Generation, Pressure Loss & Flow Regime: New Item
Analyzes fired heaters on a tube by tube basis, calculating pressure drop, flow regime, vaporization, etc.
Provides all the functionality of GridData, plus providing the ability to generate a properties grid from either the composition of the fluid or a boiling curve.
XPSIM© (eXtended  Process  SIMulation) is a software application for the design of process plants in the petroleum, gas and chemical industries.
This software may be obtained from XPSIM World by visiting their website at above link.
WinBoil© Heat Recovery Steam Generator Rating:
Will rate units with up to three pressure levels having up to fifteen coils and thirty streams. The systems can have integral deaerator systems and spray desuperheaters. The unit can have process coils mixed in with the superheaters, evaporators, and economizers. Coils can be in series or parallel. Units can be supplementary fired with burner placement anywhere in unit. CO combustion can be calculated in combustion chambers of CO Boilers.
Steamer© Once Through Steam Generator Rating:
This program is for rating Once Through Steam Generators as used in the oil fields. Units can be supplementary fired and is setup specifically for the horizontal tube recovering heat from gas turbine exhaust, but may be used for other applications.
Other Areas Of Interest
FreeWare Programs Online Calculators
Download Demo Programs Download BugFix Or Update
Other Fired Heater Web Pages Free Electronic API Data Sheets
Learn Fired Heater Design Online
Learn Heat Recovery Steam Generator Design Online
New Item WinHeat Manual Online

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