| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 645991 | Applied Thermal Engineering | 2015 | 7 Pages |
•The LP-DTECD is a new steam recovery system.•The LP-DTECD cogenerates water and power without any external fossil energy.•It utilises an eductor to generate vacuum in the single desalinator and save the valuable steam.•This system is a good option for coupling to a plant where discharge steam emits to the environment.•The proposed system is a well economic and energy efficient choice.
This study proposes a novel steam recovery cogeneration system, which is based on the low temperature thermal desalination (LTTD) system and named Low Pressure-Discharge Thermal Energy Combined Desalination (LP-DTECD). This technology includes open water and closed power cycles. Utilizing discharged thermal energy from a waste steam in an ammonia plant to cogenerate water and power is one significant of this system. Also, using an eductor instead of a steam jet ejector or a rotary vacuum pump to save valuable steam and make a convenient operation is another merit of the proposed technology. The mixture of NH3–H2O is utilised as working fluid for its closed Rankin cycle. A 28% improvement in the exergy flow was noted as in comparison with the energy waste of the base case. Utilising the LP-DTECD system is economical and demonstrates an improved CO2 emission reduction by 7%.
