An experimental study of ammonia-water desorption in compact counter-flow geometries was conducted. Two novel vapor generation units, comprising integrated desorber, analyzer, and rectifier segments that use microchannel geometries, were conceptualized. The branched-tray concept features a desorber that uses pool-boiling mechanisms, while the vertical column desorber relies on falling-film evaporation mechanisms. Both concepts rely on falling-film mechanisms in the analyzer and rectifier sections. The vapor generation unit test sections were evaluated across a range of concentrated solution mass fractions (0.400 – 0.550), desorber coupling-fluid inlet temperatures (170 – 190°C), and concentrated solution flow rates (0.70 – 1.3 g s⁻¹). This paper, Part I, reports the experimental methodology and results while in Part II, flooding limits of these geometries and heat and mass transfer models that accurately predict component-level performance are presented.

进行了紧凑的逆流几何结构中氨水解吸的实验研究。概念化了两个新颖的蒸汽发生装置，包括使用微通道几何结构的集成解吸器，分析仪和精馏段。支塔盘概念的特征在于使用池沸腾机制的解吸器，而立式塔解吸器则依赖于降膜蒸发机制。这两个概念都依赖于分析器和整流器部分的降膜机制。在一系列浓溶液质量分数（0.400 – 0.550），解吸器耦合流体入口温度（170 – 190°C）和浓溶液流速（0.70 – 1.3 gs ^-1）范围内评估了蒸汽发生单元测试段）。本文（第一部分）报告了实验方法和结果，而在第二部分中，则提出了这些几何形状的泛滥极限以及准确预测组件级性能的传热和传质模型。