From 0f912b05e4060029afa53a90e1c223186588f707 Mon Sep 17 00:00:00 2001
From: "p.vanderwilt" <p.van.der.wilt@brabantsedelta.nl>
Date: Wed, 9 Jul 2025 10:29:54 +0200
Subject: [PATCH] Add temperature handling

---
 src/nodeClass.js     |  3 +++
 src/specificClass.js | 17 +++++++++++++----
 2 files changed, 16 insertions(+), 4 deletions(-)

diff --git a/src/nodeClass.js b/src/nodeClass.js
index 7ec81d3..2e00ced 100644
--- a/src/nodeClass.js
+++ b/src/nodeClass.js
@@ -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;
diff --git a/src/specificClass.js b/src/specificClass.js
index a41acec..efe0f1d 100644
--- a/src/specificClass.js
+++ b/src/specificClass.js
@@ -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);