Abstract
Spray Ejector Condenser (SEC) is a device for condensing of water vapour at the outlet of gas‐steam turbine,
as well as compressing and separating CO2 from the mixture. Efficient thermal, mechanical and chemical
separation of CO2 from steam is required in order to effectively recover CO2 for further CCS processing.
A dedicated 1D mathematical model was applied for preliminary SEC dimensioning, resulting with two
geometry variants: one for low‐pressure lift and low water consumption (LPL), and another for high pressure
lift at increased water consumption (HPL). Initial results of experimental tests for the LPL geometry indicate
efficient thermal performance (max. condensing efficiency registered equal to 81% vs. 82% projected) at
somehow compromised mechanical performance (max. pressure lift registered equal to 0.08 bar vs. 0.23 bar
projected), truly due to irreversibilities in zones of intensive water recirculation in the mixing part of SEC.
as well as compressing and separating CO2 from the mixture. Efficient thermal, mechanical and chemical
separation of CO2 from steam is required in order to effectively recover CO2 for further CCS processing.
A dedicated 1D mathematical model was applied for preliminary SEC dimensioning, resulting with two
geometry variants: one for low‐pressure lift and low water consumption (LPL), and another for high pressure
lift at increased water consumption (HPL). Initial results of experimental tests for the LPL geometry indicate
efficient thermal performance (max. condensing efficiency registered equal to 81% vs. 82% projected) at
somehow compromised mechanical performance (max. pressure lift registered equal to 0.08 bar vs. 0.23 bar
projected), truly due to irreversibilities in zones of intensive water recirculation in the mixing part of SEC.