This products have been widely used in wind power generators in India. The special arrangement of tubes lowers the internal wind-resistance, improves the cooling flow of the generator and increase the efficiency.
Use and applications: 
• Electric-Motors and Generators 
• Electrical converter plants 
• Air pre heating powered by exhaust or waste air 
• Heat recovery plants for process engineering 
Depending on the performance data required by the customer or user, several tube designs and arrangements are available: 
• Round tubes in triangular tube layout 
• Round tubes in square tube layout 
• Flat tubes in square tube layout 
Construction and design 
By using different arrangements of tubes (e.g."W-arrangement") the required performance and the permissible pressure loss can be achieved within the limited size of the heat exchanger. 
The tubes are either sealed in the tube plates with a special compound material or fixed into the tube plates by tube expansion. 
Depending on the operating conditions, the following tube materials can be used: 
• Aluminium alloy 
• Brass and complex brass 
• Cupro nickel 
• Steel or stainless steel

This products have been widely used in wind power generators in India. The special arrangement of tubes lowers the internal wind-resistance, improves the cooling flow of the generator and increase the efficiency.
Use and applications: 
• Electric-Motors and Generators 
• Electrical converter plants 
• Air pre heating powered by exhaust or waste air 
• Heat recovery plants for process engineering 
Depending on the performance data required by the customer or user, several tube designs and arrangements are available: 
• Round tubes in triangular tube layout 
• Round tubes in square tube layout 
• Flat tubes in square tube layout 
Construction and design 
By using different arrangements of tubes (e.g."W-arrangement") the required performance and the permissible pressure loss can be achieved within the limited size of the heat exchanger. 
The tubes are either sealed in the tube plates with a special compound material or fixed into the tube plates by tube expansion. 
Depending on the operating conditions, the following tube materials can be used: 
• Aluminium alloy 
• Brass and complex brass 
• Cupro nickel 
• Steel or stainless steel