new_contents: """
  Constants used throughout the cea.technologies package.
  
  History lesson: This is a first step at removing the `cea.globalvars.GlobalVariables` object.
  """
  
  # Heat Exchangers
  U_cool = 2500.0  # W/m2K
  U_heat = 2500.0  # W/m2K
  dT_heat = 5.0    # K - pinch delta at design conditions
  dT_cool = 2.0    # K - pinch delta at design conditions
  
  # Specific heat
  rho_W = 998.0  # [kg/m^3] density of Water
  cp = 4185.0      # [J/kg K]
  
  
  # Substation data
  roughness = 0.02 / 1000  # roughness coefficient for heating network pipe in m (for a steel pipe, from Li &
  NetworkDepth = 1  # m
  
  # Initial Diameter guess
  REDUCED_TIME_STEPS = 50 # number of time steps of maximum demand which are evaluated as an initial guess of the edge diameters
subject: Copy in constants file from master