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OPTIMIZATION OF GENERATOR TEMPERATURES IN TWO-STAGE DUAL-FLUID ABSORPTION CYCLES OPERATED BY BIOGAS.

Author(s) : SIDDIQUI M. A., RIAZ M. S.

Type of article: Article, IJR article

Summary

GENERATOR TEMPERATURES IN AMMONIA ABSORPTION SYSTEMS AT SUBFREEZING EVAPORATOR CONDITIONS HAVE BEEN OPTIMIZED TO USE THE MINIMUM VOLUME OF BIOGAS REQUIRED TO OPERATE TWO-STAGE DUAL-FLUID CYCLES. IN THIS DUAL-FLUID CYCLE, A WATER-LITHIUM BROMIDE ABSORPTION SYSTEM IS USED AT THE FIRST STAGE WITH AMMONIA ABSORPTION SYSTEMS AT THE SECOND STAGE. THREE DIFFERENT REFRIGERANT-ABSORBENT COMBINATIONS (AMMONIA-WATER, AMMONIA-SODIUM THIOCYANATE, AMMONIA-LITHIUM NITRATE) WERE SELECTED FOR THE STUDY. LOWERING THE ABSORBER TEMPERATURE REDUCES THE HEAT INPUT TO THE GENERATOR, WHICH LOWERS THE GENERATING TEMPERATURE AND IMPROVES THE PERFORMANCE OF THE SYSTEMS AT THE SECOND STAGE. THE OPTIMUM GENERATOR TEMPERATURES AND COPS, AT THE FIRST AND SECOND STAGES AND THE OVERALL TWO-STAGE DUAL-FLUID CYCLES ARE PRESENTED GRAPHICALLY. A COMPARATIVE STUDY BETWEEN THE 3 AMMONIA SYSTEMS USED IN THE TWO-STAGE DUAL-FLUID CYCLE HAS BEEN CARRIED OUT.

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Pages: 148-155

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Details

  • Original title: OPTIMIZATION OF GENERATOR TEMPERATURES IN TWO-STAGE DUAL-FLUID ABSORPTION CYCLES OPERATED BY BIOGAS.
  • Record ID : 1991-1597
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 14 - n. 3
  • Publication date: 1991/05

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