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Brayton Cycle

The Brayton cycle is a thermodynamic cycle that describes the workings of a constant-pressure heat engine.

The efficiency of a Brayton cycle depends on the ratio of the pressure sources and the heat capacity ratio. The higher the ratio of high pressure to low pressure, the more efficient the engine.

Formula

QuantityVariable[Subscript["η", "th"], "ThermalEfficiency"] == 1 - (QuantityVariable[Subscript["p", "l"], "Pressure"]/QuantityVariable[Subscript["p", "h"], "Pressure"])^((-1 + QuantityVariable["γ", "HeatCapacityRatio"])/QuantityVariable["γ", "HeatCapacityRatio"])

symbol description physical quantity
ηth thermal efficiency "ThermalEfficiency"
ph high pressure "Pressure"
pl low pressure "Pressure"
γ heat capacity ratio "HeatCapacityRatio"

Forms

Examples

Get the resource:

In[1]:=
ResourceObject["Brayton Cycle"]
Out[1]=

Get the formula:

In[2]:=
FormulaData[ResourceObject["Brayton Cycle"]]
Out[2]=

Use some values:

In[3]:=
FormulaData[ ResourceObject[ "Brayton Cycle"], {QuantityVariable[ "\[Gamma]","HeatCapacityRatio"] -> 1.4`}]
Out[3]=

Source Metadata

  • Creator:
  • Date: 1791

Publisher Information