The positions of air

The positions of air inlets and air outlets are to be such as to prevent short-circuiting of air.
E.5.5 In general the shipboard machinery, equipment and appliances in machinery spaces are to be
designed for continuous operation at maximum engine room air temperature as required in the GL Rules
for Machinery Installations (I-1-2), Section 1, C
E.5.6 For the determination of the ventilation capacity the heat radiation of the equipment in the
space and the required combustion air are to be considered.
E.5.7 The capacity and arrangement of ventilation systems/ducts is to ensure that accumulation of
oil vapour is avoided under normal conditions.
Note
The capacity requirements mentioned in E.5.5, E.5.6 and E.5.7 are in general deemed to be met by using
the calculations as per ISO Standard 8861 in the latest version.
E.5.8 The number of ventilation inlets, ventilators and exhaust openings in funnels shall be kept to a
minimum, consistent with the needs of ventilation and the proper and safe working of the ship