Abstract
It is well Known that the Persian Gulf in summer is undurable hot. Almost all the crews of oil tankers, engaging in Persian line operations, complain of the physical and mental fatigue caused by adverse climatic conditions. The auther investigated the climatic conditions at several spots in the crew quarter of an oil tanker on her Persian line. The results obtained were as follows; 1) The climatic conditions in the crew quarter on the Persian Gulf differ considerably from those on the other oceans. Generally speaking, the climate in the Persian Gulf is continental and very hot. 2) The effective heat stream into the crew quarter seemed to be caused by the solar radiation on the boat deck and also by the heat yielded in the engine room. As the measure for the insulation of the solar radiation, the permanent awning is desired. And it is also noticeable that the insulation of the engine casing is quite imperfect. But the accomplishment of the insulation will result in reduction of heat loss during the night, and accordingly refrigerating equipment is indispensable for the ship sailing to the Persian Gulf.
