NH_3-H_2O吸収式ヒートポンプにおける精留器の性能解析 第3報 : 精留器濃縮段の特性 [in Japanese] Performance Analysis of Rectifier in NH_3-H_2O Absorption heat pump (Characteristic of enriching section of rectifier) [in Japanese]
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Characteristic of stripping section of packed-tower type rectifierwas presentedin previous paper. In order to improve NH<sub>3</sub> concentration inrefrigerant vapor, enriching section is considered effective. Refrigerant vapor from stripping section of rectifier and reflux solution from partial condenser flow into this section, and the proportion of solution flow rate to vapor flow rate of enriching section called reflux ratio is much smaller than that of stripping section. So the effect of reflux ratio on rectification process might be larger. <br>In this paper the effect of reflux flow rate and NH<sub>3</sub> concentration in reflux solution is investigated experimentally. As a result, it was derived that the performance of enriching section was mainly decided by reflux ratio. Then the effect of rectification performance on heat rate of partial condenser and evaporator was evaluated using the experimental result of enriching section performance.
Trans.JSRAE 14(3), 255-263, 1997-11-01
Japan Society of Refrigerating and Air Conditioning Engineers