If you ask about large wind turbines, the 50-meter tower barrel and distribution cabinet produced by Games (Gemisa) in Spain are expected to cost about 6 million yuan, and the 25-meter blade costs about 100,000 yuan in total. 3 blades can produce electricity. The price is estimated between 8 and 9 million. Tianjing Shenzhou may be cheaper. Dongqi (Vestas) machines and Sinovel towers are less than 70 meters and less than 10 million.
If it is a domestic wind turbine, it will cost around 2,000 to 2,500 euros.
Air-cooled generator: The diesel engine is a horizontal bar motor or a parallel bar motor generator, with one or more A large fan faces the generator body to force exhaust air to dissipate heat. Generally, gasoline generators and small diesel generators are used:
Air-cooled generator setsneed to be installed in open cabins, which causes greater noise;
Air-cooled generator sets have a simple structure and low failure rate, good starting performance, less air required, low fan power consumption, low fuel consumption, no risk of freezing, overheating and boiling, easy maintenance;
The air-cooled generator set is suitable for the tray or places where l If water is scarce or cold, there is no need to consider issues such as adding water, boiling point, freezing, etc. Due to the limitations of thermal load and mechanical load, the power is generally relatively low. The "Deutz" air-cooled unit does better.
2. Water-cooled generator set: Diesel engines are mainly four-cylinder, six-cylinder, twelve-cylinder and other large units. The water circulates between the ininside and outside the body, and the heat generated. the inside of the body is evacuated by the water tank and the fan. Water-cooled generator sets are mostly large-scale generator sets:
Water-cooled generator sets have complex structures, are relatively difficult to manufacture, and have many environmental requirements when used. used on chainrings, in terms of power reduction and coolant. water must be taken into account. To lower the boiling point, the boiling point and freezing point should be improved by adding a certain proportion of additives;
The cooling effect of the water-cooled generator set is ideal For. motors with the same technical parameters, water cooling is small in size, light in weight and has high energy density. Heat transfer performance is relatively goodes;
Large power generators are generally water cooled. generators. There are many brands of water-cooled generator sets, such as Mercedes-Benz generator sets, Cummins generator sets, Perkins generator sets, Yuchai generator sets and Weichai generator sets, etc.