LIBRARY

Sensors.RelativeTemperatureSensor

Measures the temperature difference between two thermal nodes.

This sensor calculates the temperature difference between two connection points, port_a and port_b. It is ideal because it does not draw any heat flow from the system to which it is connected; specifically, the heat flows port_a.Q_flow and port_b.Q_flow are both constrained to be zero. The temperatures at these nodes are port_a.T and port_b.T. The relative temperature output T_rel is given by the equation:

$$T_{rel}=port\mathrm{\_}a.T-port\mathrm{\_}b.T$$

Usage

ThermalComponents.Sensors.RelativeTemperatureSensor()

Connectors

• port_a - This connector represents a thermal port with temperature and heat flow as the potential and flow variables, respectively. (HeatPort)

• port_b - This connector represents a thermal port with temperature and heat flow as the potential and flow variables, respectively. (HeatPort)

• T_rel - This connector represents a real signal as an output from a component (RealOutput)

Behavior

$$\begin{array}{rl}\mathtt{T}\mathtt{\_}\mathtt{rel}\left(t\right)& =-\mathtt{port}\mathtt{\_}\mathtt{b}\mathtt{.}\mathtt{T}\left(t\right)+\mathtt{port}\mathtt{\_}\mathtt{a}\mathtt{.}\mathtt{T}\left(t\right)\\ 0& =\mathtt{port}\mathtt{\_}\mathtt{a}\mathtt{.}\mathtt{Q}\mathtt{\_}\mathtt{flow}\left(t\right)\\ 0& =\mathtt{port}\mathtt{\_}\mathtt{b}\mathtt{.}\mathtt{Q}\mathtt{\_}\mathtt{flow}\left(t\right)\end{array}$$

Source

"""
Measures the temperature difference between two thermal nodes.

This sensor calculates the temperature difference between two connection points,
`port_a` and `port_b`. It is ideal because it does not draw any
heat flow from the system to which it is connected; specifically, the heat
flows `port_a.Q_flow` and `port_b.Q_flow` are both constrained to be zero.
The temperatures at these nodes are `port_a.T` and `port_b.T`.
The relative temperature output `T_rel` is given by the equation:

math T_{rel} = port_a.T - port_b.T

"""
component RelativeTemperatureSensor
  "First thermal connection point"
  port_a = HeatPort() {
    "Dyad": {
      "placement": {"icon": {"iconName": "port_a", "x1": -50, "y1": 450, "x2": 50, "y2": 550}}
    }
  }
  "Second thermal connection point"
  port_b = HeatPort() {
    "Dyad": {
      "placement": {"icon": {"iconName": "port_b", "x1": 950, "y1": 450, "x2": 1050, "y2": 550}}
    }
  }
  "Relative temperature as output signal"
  T_rel = RealOutput() {
    "Dyad": {
      "placement": {
        "icon": {"iconName": "default", "x1": 450, "y1": 1000, "x2": 550, "y2": 1100, "rot": 90},
        "diagram": {"iconName": "default", "x1": 450, "y1": 1000, "x2": 550, "y2": 1100, "rot": 90}
      },
      "tags": []
    }
  }
relations
  T_rel = port_a.T - port_b.T
  0 = port_a.Q_flow
  0 = port_b.Q_flow
metadata {
  "Dyad": {
    "labels": [
      {"label": "$(instance)", "x": 500, "y": 1100, "rot": 0},
      {"label": "K", "x": 565.6, "y": 545.5, "rot": 0}
    ],
    "icons": {"default": "dyad://ThermalComponents/RelativeTemperatureSensor.svg"}
  }
}
end

Flattened Source

"""
Measures the temperature difference between two thermal nodes.

This sensor calculates the temperature difference between two connection points,
`port_a` and `port_b`. It is ideal because it does not draw any
heat flow from the system to which it is connected; specifically, the heat
flows `port_a.Q_flow` and `port_b.Q_flow` are both constrained to be zero.
The temperatures at these nodes are `port_a.T` and `port_b.T`.
The relative temperature output `T_rel` is given by the equation:

math T_{rel} = port_a.T - port_b.T

"""
component RelativeTemperatureSensor
  "First thermal connection point"
  port_a = HeatPort() {
    "Dyad": {
      "placement": {"icon": {"iconName": "port_a", "x1": -50, "y1": 450, "x2": 50, "y2": 550}}
    }
  }
  "Second thermal connection point"
  port_b = HeatPort() {
    "Dyad": {
      "placement": {"icon": {"iconName": "port_b", "x1": 950, "y1": 450, "x2": 1050, "y2": 550}}
    }
  }
  "Relative temperature as output signal"
  T_rel = RealOutput() {
    "Dyad": {
      "placement": {
        "icon": {"iconName": "default", "x1": 450, "y1": 1000, "x2": 550, "y2": 1100, "rot": 90},
        "diagram": {"iconName": "default", "x1": 450, "y1": 1000, "x2": 550, "y2": 1100, "rot": 90}
      },
      "tags": []
    }
  }
relations
  T_rel = port_a.T - port_b.T
  0 = port_a.Q_flow
  0 = port_b.Q_flow
metadata {
  "Dyad": {
    "labels": [
      {"label": "$(instance)", "x": 500, "y": 1100, "rot": 0},
      {"label": "K", "x": 565.6, "y": 545.5, "rot": 0}
    ],
    "icons": {"default": "dyad://ThermalComponents/RelativeTemperatureSensor.svg"}
  }
}
end

Test Cases

No test cases defined.

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