Functional Requirements
This section provides the functional requirements, the tasks and behaviours that the software is expected to complete.
Input-Initial-Values: Input the following values described in the table for Required Inputs, which define the tank parameters, material properties, and initial conditions.
Find-Mass: Use the inputs in FR:Input-Initial-Values to find the mass needed for IM:eBalanceOnWtr, using DD:waterMass, DD:waterVolume_nopcm, and DD:tankVolume.
Check-Input-with-Physical_Constraints: Verify that the inputs satisfy the required physical constraints.
Output-Input-Derived-Values: Output the input values and derived values in the following list: the values (from FR:Input-Initial-Values), the mass (from FR:Find-Mass), and \({τ_{\text{W}}}\) (from DD:balanceDecayRate).
Calculate-Values: Calculate the following values: \({T_{\text{W}}}\)(\(t\)) (from IM:eBalanceOnWtr) and \({E_{\text{W}}}\)(\(t\)) (from IM:heatEInWtr).
Output-Values: Output \({T_{\text{W}}}\)(\(t\)) (from IM:eBalanceOnWtr) and \({E_{\text{W}}}\)(\(t\)) (from IM:heatEInWtr).
| Symbol | Description | Units |
|---|---|---|
| \({A_{\text{C}}}\) | Heating coil surface area | \({\text{m}^{2}}\) |
| \({A_{\text{tol}}}\) | Absolute tolerance | – |
| \({C_{\text{W}}}\) | Specific heat capacity of water | \(\frac{\text{J}}{\text{kg}{}^{\circ}\text{C}}\) |
| \(D\) | Diameter of tank | \({\text{m}}\) |
| \({h_{\text{C}}}\) | Convective heat transfer coefficient between coil and water | \(\frac{\text{W}}{\text{m}^{2}{}^{\circ}\text{C}}\) |
| \(L\) | Length of tank | \({\text{m}}\) |
| \({R_{\text{tol}}}\) | Relative tolerance | – |
| \({T_{\text{C}}}\) | Temperature of the heating coil | \({{}^{\circ}\text{C}}\) |
| \({T_{\text{init}}}\) | Initial temperature | \({{}^{\circ}\text{C}}\) |
| \({t_{\text{final}}}\) | Final time | \({\text{s}}\) |
| \({t_{\text{step}}}\) | Time step for simulation | \({\text{s}}\) |
| \({ρ_{\text{W}}}\) | Density of water | \(\frac{\text{kg}}{\text{m}^{3}}\) |
Required Inputs following FR:Input-Initial-Values