Add temperature handling

This commit is contained in:
2025-07-09 10:29:54 +02:00
parent 0efa76fa6a
commit 0f912b05e4
2 changed files with 16 additions and 4 deletions

View File

@@ -42,6 +42,9 @@ class nodeClass {
case "OTR":
this.reactor.setOTR = msg;
break;
case "Temperature":
this.reactor.setTemperature = msg;
break;
case "Dispersion":
this.reactor.setDispersion = msg;
break;

View File

@@ -25,6 +25,7 @@ class Reactor {
this.Fs = Array(config.n_inlets).fill(0); // fluid debits per inlet [m3 d-1]
this.Cs_in = Array.from(Array(config.n_inlets), () => new Array(NUM_SPECIES).fill(0)); // composition influents
this.OTR = 0.0; // oxygen transfer rate [g O2 d-1]
this.temperature = 20; // temperature [C]
this.kla = config.kla; // if NaN, use externaly provided OTR [d-1]
@@ -51,6 +52,14 @@ class Reactor {
this.OTR = input.payload;
}
/**
* Setter for temperature.
* @param {object} input - Input object (msg) containing payload with temperature value [C].
*/
set setTemperature(input) {
this.temperature = input.payload;
}
/**
* Calculate the oxygen transfer rate (OTR) based on the dissolved oxygen concentration and temperature.
* @param {number} S_O - Dissolved oxygen concentration [g O2 m-3].
@@ -121,9 +130,9 @@ class Reactor_CSTR extends Reactor {
tick(time_step) { // tick reactor state using forward Euler method
const inflow = math.multiply(math.divide([this.Fs], this.volume), this.Cs_in)[0];
const outflow = math.multiply(-1 * math.sum(this.Fs) / this.volume, this.state);
const reaction = this.asm.compute_dC(this.state);
const reaction = this.asm.compute_dC(this.state, this.temperature);
const transfer = Array(NUM_SPECIES).fill(0.0);
transfer[S_O_INDEX] = isNaN(this.kla) ? this.OTR : this._calcOTR(this.state[S_O_INDEX]); // calculate OTR if kla is not NaN, otherwise use externaly calculated OTR
transfer[S_O_INDEX] = isNaN(this.kla) ? this.OTR : this._calcOTR(this.state[S_O_INDEX], this.temperature); // calculate OTR if kla is not NaN, otherwise use externaly calculated OTR
const dC_total = math.multiply(math.add(inflow, outflow, reaction, transfer), time_step)
this.state = this._arrayClip2Zero(math.add(this.state, dC_total)); // clip value element-wise to avoid negative concentrations
@@ -204,13 +213,13 @@ class Reactor_PFR extends Reactor {
tick(time_step) {
const dispersion = math.multiply(this.D / (this.d_x*this.d_x), this.D2_op, this.state);
const advection = math.multiply(-1 * math.sum(this.Fs) / (this.A*this.d_x), this.D_op, this.state);
const reaction = this.state.map((state_slice) => this.asm.compute_dC(state_slice));
const reaction = this.state.map((state_slice) => this.asm.compute_dC(state_slice, this.temperature));
const transfer = Array.from(Array(this.n_x), () => new Array(NUM_SPECIES).fill(0));
if (isNaN(this.kla)) { // calculate OTR if kla is not NaN, otherwise use externally calculated OTR
transfer.forEach((x) => { x[S_O_INDEX] = this.OTR; });
} else {
transfer.forEach((x, i) => { x[S_O_INDEX] = this._calcOTR(this.state[i][S_O_INDEX]); });
transfer.forEach((x, i) => { x[S_O_INDEX] = this._calcOTR(this.state[i][S_O_INDEX], this.temperature); });
}
const dC_total = math.multiply(math.add(dispersion, advection, reaction, transfer), time_step);