Akademik Veri Yönetim Sistemi
DEÜ FMD, cilt.21, sa.63, ss.733-740, 2019 (Hakemli Dergi)
This study presents the results of the thermodynamic analysis of the new desiccant- evaporativeair-cooling cycles can be applied in ships. The desiccant- evaporative- cooling system is
characterized by energy efficiency and low environmental impact. In this work, thermodynamic
possibility to install desiccant cooling system (DCS) has been studied for a M/V ASSTAR Trabzon RoRo cargo vessel, by using fraction of the heat rejected by existing on-board engine. The baseline
system is incorporated a desiccant dehumidifier, a heat exchanger, an indirect evaporative cooler,
and a direct evaporative cooler. The system offered sufficient sensible and latent cooling capacities
for a wide range of climatic, while allowing in flux of outside air in excess of what is typically
required for Ro-Ro cargo vessel. The present work aims at identifying the parameters of the system
cycle and investigates their effect on the performance of the waste-heat driven cooling systems. And,
the effect of different return air flow rates usage on the system performance is another aspect of the
study. Two ways are considered for mixing process of the return and outside air streams; one is
consists of two recirculation cycles, other one is a ventilation cycle, all of them have been examined
and demonstrated. The maximum coefficient of thermal performance (COP) of a waste-heat driven
cooling cycles were determined by assuming that the cycles are totally reversible.