increase in output!
When the engine combustion air is cold and therefore more dense, it contains more oxygen, which allows the combustion of the fuel to take place more efficiently. If the engine can draw its combustion air directly from outside, the performance of the engine will improve considerably, compared with having to draw its air from the - warm - engine room.
The power rating of a modern marine diesel engine is mostly determined by 3 major permanent factors: air pressure of 100 kPa, air temperature of 300 Kelvin(K) (81F) and atmospheric humidity of 60%. If the air temperature is increased from 80F to 150F (338 K), the following formula applies:
MOFI 100 Air Intake Box
A louvered air vent type 100, a MOFI 100 intake box and 7" air ducting hose can also be used for discharge of the warm air to the outside.
Ventilator Type VENT178
for large engines
Any engine in operation radiates a great deal of heat, which must be extracted, so as to keep the ambient temperature of the engine room as low as possible. Given a maximum outside air temperature of 77F and a maximum temperature in the engine room of 158F, this VETUS extraction ventilator, type VENT 178, is capable of keeping the ambient temperature in the engine room to an acceptable level when one or two engines of total output 150 kW (200 HP) are fitted. Should the engine(s) be more powerful, two or more extraction ventilators must be installed, to ensure sufficient ventilation.
VTVENT17812(LIST $425.00) 12 VOLT- 8 AMP (EXCL. HOSE)
VTVENT17824(LIST $425.00) 24 VOLT- 4 AMP (EXCL. HOSE)
Air Ducting Hose
To connect the (louvered) air intake device with the air filter housing ( 6" or 7"). The 7" hose may also be used in combination with the extraction ventilator. Suitable hose clamps are to be ordered separately.
VTVHOSE152(LIST $19.50) 6" PER FOOT
VTVHOSE152N(LIST $89.00) NOISE REDUCING 6" PER FOOT
VTVHOSE178(LIST $23.50) 7" PER FOOT
VTVHOSE178N(LIST $95.00)NOISE REDUCING 7" PER FOOT
In addition to the suction/pressure hose, suction hose with sound-deadening capacity is now also available.
Inside diameters, 6" or 7". Wall thickness: 20 mm. Temperature resistant between -20C and + 80C. Very
flexible: the hose will follow continuously all engine movements.