Abstract
This work presents a diesel engine total energy scheme where waste energy in the exhaust and block cooling water is recovered. The engine drives a RO plant, VC-A/C plant and supplies the neighbouring region electric power demands. The recovered energy fires an A/C system comprises a LiBr-H2O absorption machine and a silica gel air dehumidifying unit. The RO reject provides about one third of the cooling water required for various components in the scheme. Governing equations for the hot water regenerated air dehumidifying bed are presented, and the system is applied to a case study of 44/31 °C DBT/WBT. Results show the characteristics variations for the handled air as well as for the desiccant bed in both DH and RG mode in a coupled fashion with purging allowance. The hot cooling water regenerated desiccant bed showed a COPd of 0.62 and the exhaust gas driven absorption machine acquires a COPab of 0.8. The waste energy fired system could satisfy 40% of the A/C load at COPov of 1.15. The analysis showed an annual potential savings of 0.5×106 $ with an equivalent fuel savings of 11 000 barrel per year. The scheme saves 15.5% of the diesel capital plus a comparable percentage of the annual running expenses.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
