diff --git a/intermediateFoodTests/Ex1.py b/intermediateFoodTests/Ex1.py
index 189054665..15dfd0789 100644
--- a/intermediateFoodTests/Ex1.py
+++ b/intermediateFoodTests/Ex1.py
@@ -18,7 +18,7 @@
 import matplotlib.pyplot as plt
 
 from tespy.components import Separator,Merge,CycleCloser,Valve
-from tespy.components.newcomponents import DiabaticSimpleHeatExchanger,MergeWithPressureLoss,SeparatorWithSpeciesSplits
+from tespy.components.newcomponents import DiabaticSimpleHeatExchanger,MergeWithPressureLoss,SeparatorWithSpeciesSplits,SimpleHeatExchanger
 
 import logging
 #logging.basicConfig(level=logging.DEBUG)
@@ -45,7 +45,9 @@
 # set conditions around boiler
 # fluid_back_ends={'Water': "INCOMP", "PHE": "INCOMP", "S800": "INCOMP"}
 c1.set_attr(fluid={'INCOMP::Water': 0.80,'INCOMP::PHE': 0.15,'INCOMP::S800': 0.05}, m=100, h=h0, p=p0, mixing_rule="incompressible")
-c2.set_attr(h=h0,p=p0)
+#c2.set_attr(h=h0,p=p0)
+c2.set_attr(h=h0)
+boiler.set_attr(pr=1)
 
 # solve and print results
 network.solve('design')
diff --git a/intermediateFoodTests/Ex1tespy070.csv b/intermediateFoodTests/Ex1tespy070.csv
index f5ff45442..91593cccb 100644
--- a/intermediateFoodTests/Ex1tespy070.csv
+++ b/intermediateFoodTests/Ex1tespy070.csv
@@ -1,3 +1,3 @@
-,m,m_unit,v,v_unit,p,p_unit,h,h_unit,T,T_unit,Td_bp,Td_bp_unit,vol,vol_unit,x,x_unit,s,s_unit,Water,PHE,S800
-source:out1_boiler:in1,100.0,kg / s,0.10392670186561417,m3 / s,2.0,bar,100.0,kJ / kg,46.94571580233958,C,0.0,C,0.0010392670186561417,m3 / kg,0.0,-,326.0023871536029,J / kgK,0.8,0.15,0.05
-boiler:out1_sink:in1,100.0,kg / s,0.10392670186561417,m3 / s,2.0,bar,100.0,kJ / kg,46.94571580233958,C,0.0,C,0.0010392670186561417,m3 / kg,0.0,-,326.0023871536029,J / kgK,0.8,0.15,0.05
+,m,m_unit,v,v_unit,p,p_unit,h,h_unit,T,T_unit,Td_bp,Td_bp_unit,vol,vol_unit,x,x_unit,s,s_unit,Water,S800,PHE
+source:out1_boiler:in1,100.0,kg / s,0.10392670186561417,m3 / s,2.0,bar,100.0,kJ / kg,46.94571580233958,C,0.0,C,0.0010392670186561417,m3 / kg,0.0,-,326.0023871536029,J / kgK,0.8,0.05,0.15
+boiler:out1_sink:in1,100.0,kg / s,0.10392670186561417,m3 / s,2.0,bar,100.0,kJ / kg,46.94571580233958,C,0.0,C,0.0010392670186561417,m3 / kg,0.0,-,326.0023871536029,J / kgK,0.8,0.05,0.15
diff --git a/intermediateFoodTests/diff.ipynb b/intermediateFoodTests/diff.ipynb
index 0a127bf5f..e003dabae 100644
--- a/intermediateFoodTests/diff.ipynb
+++ b/intermediateFoodTests/diff.ipynb
@@ -2,7 +2,7 @@
  "cells": [
   {
    "cell_type": "code",
-   "execution_count": 27,
+   "execution_count": 1,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -11,13 +11,13 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 28,
+   "execution_count": 2,
    "metadata": {},
    "outputs": [
     {
      "data": {
       "text/plain": [
-       "m        0.000000e+00\n",
+       "m        2.220446e-16\n",
        "p        0.000000e+00\n",
        "h        6.494361e-12\n",
        "T        2.223999e-12\n",
@@ -32,7 +32,7 @@
        "dtype: float64"
       ]
      },
-     "execution_count": 28,
+     "execution_count": 2,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -47,7 +47,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 29,
+   "execution_count": 3,
    "metadata": {},
    "outputs": [
     {
@@ -68,7 +68,7 @@
        "dtype: float64"
       ]
      },
-     "execution_count": 29,
+     "execution_count": 3,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -83,28 +83,28 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 30,
+   "execution_count": 4,
    "metadata": {},
    "outputs": [
     {
      "data": {
       "text/plain": [
-       "m        7.105427e-15\n",
+       "m        1.065814e-14\n",
        "p        0.000000e+00\n",
        "h        1.131468e-10\n",
        "T        1.203944e-10\n",
        "v        8.985868e-16\n",
        "vol      9.996344e-17\n",
-       "s        1.285571e-09\n",
+       "s        1.285741e-09\n",
        "x        0.000000e+00\n",
        "Td_bp    0.000000e+00\n",
-       "PHE      8.326673e-17\n",
-       "S800     2.220446e-16\n",
-       "Water    1.110223e-16\n",
+       "PHE      2.775558e-16\n",
+       "S800     3.330669e-16\n",
+       "Water    6.661338e-16\n",
        "dtype: float64"
       ]
      },
-     "execution_count": 30,
+     "execution_count": 4,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -119,28 +119,28 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 31,
+   "execution_count": 5,
    "metadata": {},
    "outputs": [
     {
      "data": {
       "text/plain": [
-       "m        7.105427e-15\n",
+       "m        1.065814e-14\n",
        "p        0.000000e+00\n",
        "h        1.131468e-10\n",
        "T        1.203944e-10\n",
        "v        8.985868e-16\n",
        "vol      9.996344e-17\n",
-       "s        1.285571e-09\n",
+       "s        1.285741e-09\n",
        "x        0.000000e+00\n",
        "Td_bp    0.000000e+00\n",
-       "PHE      8.326673e-17\n",
-       "S800     2.220446e-16\n",
-       "Water    1.110223e-16\n",
+       "PHE      2.775558e-16\n",
+       "S800     3.330669e-16\n",
+       "Water    6.661338e-16\n",
        "dtype: float64"
       ]
      },
-     "execution_count": 31,
+     "execution_count": 5,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -155,7 +155,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 32,
+   "execution_count": 6,
    "metadata": {},
    "outputs": [
     {
@@ -170,13 +170,13 @@
        "s        3.728383e-08\n",
        "x        0.000000e+00\n",
        "Td_bp    0.000000e+00\n",
-       "Water    5.551115e-16\n",
+       "Water    6.661338e-16\n",
        "PHE      2.220446e-16\n",
        "S800     1.040834e-16\n",
        "dtype: float64"
       ]
      },
-     "execution_count": 32,
+     "execution_count": 6,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -206,7 +206,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.8.15"
+   "version": "3.10.11"
   },
   "orig_nbformat": 4
  },