The current high cost of energy leads many companies to invest in the optimization of their installations to achieve energy savings in the paper industry. Brunnschweiler has recently developed a new process for energy recovery for the machines 1 and 2 of Industrias Forestales, S.A., at Nacimiento (Chile).

The supply included three air/fumes recovery units, two for the MP-1 and one for the MP-2, equipped with Baltogar fans, a member of the Brunnschweiler family of companies. The first recovery unit has been calculated to save at the most 582.300 kcal/h, while in normal operation this value is 468.900 kcal /h in cold season and 370.800 kcal/h in hot season. In the second unit the heat recovered can reach 984.300 kcal/h with 741.000 kcal/h in cold days and 591.000 kcal/h in warmer conditions. Finally, the third fumes/air exchanger has a heat recovery power of 732.300 kcal/h (585.300 kcal/h in cold season and 498.400 kcal/h in warm season).
 
The average savings are as follows:
-    The total heat recovered is 1.628.000 kcal/h, giving a steam saving up to 3.250 kg/h.
-    The return of investment for the overall project is less than one year payback, making this a very good investment.

A project team was assembled and collaborated to obtain the resulting energy savings to make this project a success. Other team members are the forest group CMPC Papeles, S.A., and  Industrias Forestales, S.A., a leader in the production of newspaper in Chile and the largest Latin-American exporter of this product.