diff --git a/CokeOvenServiceSimulator.ipynb b/CokeOvenServiceSimulator.ipynb
index 5b312a5..9803afc 100644
--- a/CokeOvenServiceSimulator.ipynb
+++ b/CokeOvenServiceSimulator.ipynb
@@ -11,6 +11,8 @@
     "\n",
     "import numpy as np\n",
     "\n",
+    "import cantera as ct\n",
+    "\n",
     "import matplotlib.ticker \n",
     "from matplotlib import pyplot as plt\n",
     "%matplotlib widget"
@@ -328,9 +330,21 @@
     "        return next_oven_id\n",
     "\n",
     "    def bake (self, dt):\n",
-    "        dQ = self.dQ(dt) # array, dQ to all ovens\n",
+    "        # update combustion chamber equilibrium temperature\n",
+    "            # Tad = 연료 조성과 공연비로 결정\n",
+    "            # m_dot = 연료 발열량과 공급열량 공연비로 결정\n",
+    "            # m(h1 - h0) = hA(Tgas - Twall) => solve with initial T0 = Tad\n",
+    "        \n",
+    "        # advance time oven brick\n",
+    "            # from chamber heat flux boundary condition\n",
+    "            # to oven fixed temperature boundary condition\n",
+    "        \n",
+    "        # integrate heat to oven # 오븐 벽면 온도 우선 시간 함수로\n",
+    "\n",
+    "        dQ = self.dQ(dt) # array, dQ pairs of all oven taking from both walls\n",
+    "        \n",
     "        for cc in self.processing:\n",
-    "            cc.bake(dQ)\n",
+    "            cc.bake(dQ) # bake.(dQ[cc.idx_oven])\n",
     "\n",
     "    def push_and_charge (self, coke_charge):\n",
     "        if len(self.processing) >= self.size:\n",