CoolantDetrit.WaterCoolant#

Description and Method#

It is impractial for all of the water in the loop to be continuously detriated (from a power perspective) hence only a side stream shall be detritated. But what is the portion of the sidestream to be treated?

Seperated into the following models with these major equations:

• Tritium breeding rate
  • tritium Breeding Rate (mol/s) = Trit reactor input per 1GW thermal (mol/s) * Thermal Power * burn rate (%) * Tritium breeding ratio
• Permeation calculation
  • Permeation Rate (mol/s) = Permeability * (Area (m²) / Length (m)) * (sqrt(Blanket side partial pressure (Pa) - sqrt(coolant side partial pressure (Pa))
• Water split stream calculation
  • Split steam (kg/s) = permeation rate (mol/s) / (Assumed trit removal efficiency (%) * max trit concentration permissible (mol/kg))
• Electrolysis Energy
  • Electrolysis Power (kW) = tritiated water feed * (5/2) (kg/s) * electrolysis power
• Water heating calculation
  • Heating Power (kW) = Flowrate (kg/s) * (reflux ratio * heat capacity (kJ / kg.°C) * (Target T (°C) - Ambient T (°C)) + latent heat of vapourisation * vapour fraction)
• Gas Compression
  • Compressor energy (kW) = compressor work (kJ/kg) * hydrogen flowrate (kg/s)
• Total contingency factor
  • Electrolysis Power + Water Heating + Compressor work

Assumptions#

• Water Split stream calculation - Assumed tritium removal effciency of 95%