Potensi Pemanfaatan Membran Untuk Regenerasi Refrigeran Dari Absorber Pada Sistem Pendingin Absorpsi Lithium Bromide-H2O

Rudiyanto, Bayu (2015) Potensi Pemanfaatan Membran Untuk Regenerasi Refrigeran Dari Absorber Pada Sistem Pendingin Absorpsi Lithium Bromide-H2O. Rona Teknik Pertanian, 8 (1). pp. 1-9. ISSN 2085-2614

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Abstract

The absorption refrigeration system has the characteristic is to produce cycle cooling not using compressor but using thermal energy. Utilization of low-level energy or heat to the regeneration process in the generator, not all can be used when the temperature is less than 85 ° C. So it is necessary to find an alternative process for separating between the refrigerant and absorbent to help or do not use high heat. One of the emerging separation technique today is the membrane technology. The working principle of membrane technology in the separation solution is to remove the solvent from weak solution to strong solution. The results showed that the operating pressure of 7 bar indicates the level of the highest rejection factor is equal to 0.96 but the resulting mass flux is low when compared to the operating pressure of 7.2 bar and 7.4 bar. Pressure of 7 bar with a rejection rate of 0.96 will result in a longer cooling time, otherwise it will result in rejection factor levels vapor pressure difference between the evaporator and the absorber chamber that will affect the lowest temperature attained.

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