Radiators dissipation difference
Our present radiators are the result of a series of improvements due to experience and they offer considerable economic advantages. CONVETT radiators allow heat dissipation which is about 30-35% and more higher than the radiators made of stamped plate. Indeed, for a 25000 Kva transformer Italian technicians use:

  • No.19 stamped-plate radiators,I = 1900,N = 15 elements ,m2 = 597
  • No.16 CONVETT radiators,I = 1900,N = 15 elements ,m2 = 432
  • No.16 CONVETT radiators,I+EI=2100/1900 N= 13 elements, m2 = 406

Therefore the lower number of radiators used offers considerable advantages if compared with the usual radiator made of stamped plate:
Better exploitation of the available space, thus achieving solutions which might seem impossible;

  • saving of flanges and valves;
  • saving of oil
  • saving in assembly and transport
  • lower number of fans in case of ONAF;
  • reduced transformer dimensions and lower weight

Example
As by increasing the number of elements per radiator the efficiency of Convett radiators decreases less than that of stamped plate types, it should be noted that the optimum dimension can be reached by trying to decrease the number of radiators and increasing the number of elements of each, in order to reach a good compromise.

To see the example of a ONAN 190 KW dissipation with lowered radiators (tubular and stamped plate) with the surface overall difference needed, please click the following links:

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