The Development of Engine Evaporative Cooling System Nissan Motor Company, Limited

Format:

Conference/Event

Author/Creator:

Kubozuka, Takao, author.

Conference Name:

SAE International Congress & Exposition (1987-02-23 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1987

Summary:

A fundamental heat transfer study has "been conducted on a new engine cooling system in which heat is removed from the engine through the boiling process in the water jacket and is radiated to the air through a condenser. By carrying out a basic experiment using a model boiler as a substitute for the cylinder head water jacket and a real engine experiment, the following cooling system characteristics were found: First, a good heat transfer coefficient can be obtained up to an order of 103 kw/m2 heat flow with only a small coolant flow. Second, it is possible to obtain a more uniform temperature distribution over the engine structure by making use of the cooling by boiling characteristics which remove more heat from hotter surfaces than from cooler ones. Third, the good response of this system's variable temperature control procedure greatly reduces knocking, which in turn increases power.Further, the behavior of the coolant inside of the condensing radiator was observed as a mixture of dropwise and filmwise condensation. As a result, a better heat transfer coefficient was obtained than that of conventional convective radiators

Notes:

Vendor supplied data

Publisher Number:

870033

Access Restriction:

Restricted for use by site license