Plant data

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This sub-report documents the general plant data.

The aim of this sub-report is to document the efficiency of the plant. For this, a number of components having fixed values are evaluated. The reference values of the plant are then calculated from these starting values:

• Specification of the heat flow to the plant supply-limit
• Electrical power of the generators
• Electrical auxiliary load

 

Note: the heat flow for the gas turbines at the plant supply-limit must not be equal to the heat flow at the GT-inlet (e.g. fuel pre-heater, gas compressor)

 

The heat flow is calculated according to the following formula:

with:

M = Mass flow

NCV = calculated net calorific value at a given HU - reference temperature.

HT-Fuel = Enthalpy of the fuel at a given temperature of the fuel

HT reference temperature = Enthalpy of the fuel at the reference temperature for determining the heat value

 

Example:

Components for determining the plant data

 

For determining the plant data, a series of components must be specified (list of the components of the sub-protocol). Different attributes of the components are evaluated depending upon the component type.

The following table shows, which components are included in the evaluation and how these are evaluated:

Component	No.	Heat flow fuel at the plant supply-limit	El. power of generators	Electrical auxiliary load
Boundary value (pastille) on the fuel line	1	X
Boundary value (pastille) on the electrical line	1			X
Generator	11		X
Combustion chamber	21	X
Combustion chamber of gas turbine	22	X
Motor	29			X
Power summarizer	31			X
Start value setter on the fuel line	33	X
Start value setter on the electrical line	33			X
GT-Macro	40		X
Channel burner	41	X
Comparison – measurement point (Type = Power)	45	X
Control measurement point (Type = Power)	46			X
GT-Macro (ABB Type)	57		X
Evaporator/ Drum Macro (power requirement of pump)	70			X

In case the electrical power is calculated outside of the EBSILON^®Professional cycle, it must be specified for the calculation of the plant data. This can be done through a dummy-generator component, in which the power is specified at the electrical output through a pastille.

The generator is included in the list as component. The protocol-program then takes the power on the electrical line.

The generator, in this case, may not be calculated in the cycle:

Generator component Properties Advanced Options Calculation Do not calculate component

A part of the electrical auxiliary load can be calculated via the motors or the power summarizer respectively and via the component 70. In addition, the electrical auxiliary load can also be defined via a separate control measurement point (type = power) (see the table above).

The gross power is the total generator power without deducting the electrical auxiliary load. The gross power, after deduction of the electrical auxiliary load, is the net power of the plant.

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Create sub-reports

• Select the components in the cycle for calculating the plant data.
• Call the dialog box "Modify Sub-Report".
• Select the sub-report "Plant data" and include it in the list of the sub-reports.
• If needed, enter an additional title.
• Select the sub-report for the plant data and then click on the button "Modify" or double-click the sub-report for the plant data. The dialog box "Edit Sub-Report" now opens.
• A click on the button "Insert (Select)" the component selected earlier in the cycle is added in the list of the components of the sub-report.
• Close the dialog box for the list of the components through the button "Close".
• Close the dialog box for modifying the sub-report through the button "Close".