Proper Supply Air Distribution Inside A Ship Cabin For A Best Ventilation Efficiency In Basrah City

Abstract

This paper focuses on the thermal comfort inside a selected Iraqi ship’s (GOUGE) cabin space whom working in the Umqaser port. Because of limited space and low ceiling height of these cabins, a low mixing ratio between the supplied conditioned air and the indoor air is expected. This lack of homogeneity of the air mixture causes many health problems for the crew and reduces their effectiveness. A computational fluid dynamics (CFD) has been used within the program (ANSYS 15) for the purpose of analysis and solving the equations of mass, momentum and energy and to compare the numerical results obtained from the program with the experimental results for distribution the temperature, velocity and relative humidity of the air conditioned inside Iraqi ship’s cabin, where the results showed good matching.A full scale test cabin has been designing and building as a simulator cabin with the same specifications of the real cabin to validate the measurements which carried out on this test cabin with the experimentaland numerical results on the real cabin. In this study different supply diffusers are tested, such as square and circular ceiling diffusers, side wall register and slot diffuser. It was found that the ceiling square diffuser is the proper diffuser for thecabin. This study focuses on the air changing per hour, also on the air diffusion inside the cabin, taking into consideration the climatic basrah where the temperature and high humidity.