#
Temperature difference - I-nodes model of an Earth spacecraft

## Description

Temperature difference – I-nodes model of an Earth spacecraft

Related formulas
## Variables

T_{i} | node temperature(Kelvin) (dimensionless) |

k | effective thermal conductivity(W*m^-1*K^-1) (dimensionless) |

Δ_{t} | time difference (dimensionless) |

m | mass(kg) (dimensionless) |

c_{th} | specific thermal capacity(J/(kg*K)) (dimensionless) |

α_{AL} | Absorption coefficient (dimensionless) |

E_{o} | Solar constant (dimensionless) |

A_{i} | Area of node(m^2) (dimensionless) |

i | Imaginary unit |

n | index (dimensionless) |

k_{AL} | Thermal conductivity (dimensionless) |

d | diameter (dimensionless) |

Δ_{Ti} | index (dimensionless) |

T_{k} | index (dimensionless) |

Δ_{Tk} | index (dimensionless) |

ϵ | radiation via albedo(W) (dimensionless) |

σ | Stefan-Boltzmann constant(5.670373e-8 W*m^-2*K^-4) (dimensionless) |

l | radiation from Earth(W) (dimensionless) |

ϵ_{i} | emission coefficient (dimensionless) |

T | Initial temperature of nodes(Kelvin) (dimensionless) |