Optimización del Sistema de Generación de vapor para la producción de quesos en la Quesera “El Nevadito”, Parroquia San Juan Chimborazo

Abstract

Optimization of steam generation system for the milk y farm "El Nevadito" it is located in San Juan parish Chimborazo province , in order to avoid loss of energy, extend equipment life, improve the process and production conditions taking into account established standars. It was started with an equipment diagnosis , determination of process variables, collecting of samples for physics - chemical characterization of water by apply ing the “ Standard Methods 2550 ” these combined with laboratory tests at the Faculty of Sciences of the Escuela Superiór Politécnica de Chimborazo. Pressure data 3 0 PSI were obtained , feeding water temperature 19 C , steam produced 121, 13 C, total heat transfer coefficient 5.84 kcal / m2.hC, boiler efficiency 67%, hardness for calcium conce ntration 22,4 mg / L and magnesium 7, 8 mg / L, loss for carcass isolation 7926, 53 kcal / h, and L angelier index of - 1.8 indicating corrosivity for the materi als. It w as determined to add 4, 44 g of lime to the feed ing water, 2 kg of sodium carbonate to treat incrustation s of calcium sulphate. Studies and analyzes obtained the following improvements: 36, 4% reduction in hardness, up 20% on the total heat transfer coefficient. It is concluded that according to the calculation done, the following changes should be implement ed in the plant a pretrea tment and internal treatment to the boiler water , and to in crease the purge level to 2, 53 kg of steam / h. It is recommended to add insolation i n the pipes conducting steam, to replace the carcass isolation and to carry out the proposal of this research work in order to reduce loss of energy and soon equipment deterioration.