風冷發(fā)電機組：柴油機為單缸發(fā)動機、雙缸發(fā)動機的發(fā)電機，用1個到多個大風扇對著發(fā)電機機體強制排風散熱。一般以汽油發(fā)電機和小型柴油發(fā)電機為主.風冷發(fā)電機組需要安裝在敞開式艙室內(nèi)，噪聲較大；風冷發(fā)電機組結(jié)構簡單、故障率低、啟動性能好，所需空氣量少，風扇消耗功率低，油耗也較低，沒有凍裂或過熱沸騰危險，利于維護；風冷發(fā)電機組適用于高原或缺水或寒冷的地方，不必考慮加水、沸點、凍結(jié)等方面的問題，因受到熱負荷和機械負荷限制，功率一般都比較小。

Air-cooled generator is a generator with a single-cylinder engine or a double-cylinder engine. One or more large fans are used to force the exhaust air to dissipate heat against the generator. Generally, gasoline generators and small diesel generators are the main ones.Air-cooled generators need to be installed in open cabins, which are noisy; Air-cooled generators have simple structure, low failure rate, good starting performance, and less air required the fan has low power consumption and low fuel consumption, and there is no danger of freeze cracking or overheating, which is conducive to maintenance; Thermal load and mechanical load limit, power is generally relatively small.  

水冷發(fā)電機組：柴油機為主要是四缸、六缸、十二缸等大機組，機體內(nèi)部與外部的水循環(huán)，通過散熱水箱和風扇帶走機體內(nèi)部產(chǎn)生的熱量。水冷發(fā)電機組以大型發(fā)電機組較多：水冷發(fā)電機組結(jié)構復雜，制造難度相對較大，對環(huán)境的要求比較多，在高原使用時，需要考慮降功率使用和冷卻液水的沸點降低，要通過加入一定比例的添加劑來改善沸點和冰點；水冷發(fā)電機組冷卻效果理想，相同的技術參數(shù)的電機，水冷的體積小，重量輕，能量密度大，傳熱性能比較好；大功率發(fā)電機組一般為水冷發(fā)電機組。

Water-cooled generators are mainly four-cylinder, six-cylinder, twelve-cylinder and other large units. The water circulates inside and outside the body, and the heat generated inside the body is taken away through the radiator and the fan. There are many large-scale water-cooled generators.The water-cooled generator is complex in structure, relatively difficult to manufacture, and has many requirements on the environment. When used in plateaus, it is necessary to consider the use of power reduction and the reduction of the boiling point of coolant water. A certain proportion of additives can improve the boiling point and freezing point; the cooling effect of water-cooled generator  is ideal, the motor with the same technical parameters, the water-cooled motor is small in size, light in weight, high in energy density, and good in heat transfer performance; high-power generators are generally water-cooled power.