本研究开发了一种用于吸收式空间空调系统的风冷横流冷凝器的设计程序。考虑中的制冷剂是氨和水的二元流体混合物，这是吸收式热泵考虑的主要流体对之一。详细研究了双组分混合物对管侧温度分布的影响。空气侧考虑了几种替代翅片类型。通过计算换热器等效热负荷的质量，比较了不同翅片类型冷凝器的性能。在可用传热和摩擦系数关联式的限制范围内- 带有扁平、波浪形、百叶窗和环形翅片的管式换热器的设计符合典型的吸收循环设计条件。研究了设计变量的影响，如管的平行/蛇形流动布置、翅片密度、芯部深度以及传热性能和管侧和空气侧压降的其他参数。结果表明，在此处考虑的翅片几何结构中，波浪形翅片的换热器质量最小，以满足设计目标和约束条件。单位:双引文:研讨会，ASHRAE交易，1998年，第104卷，pt。1A，旧金山

A procedure for the design of air-cooled cross-flow condensers for absorption space-conditioning systems was developed in this study. The refrigerant under consideration is a binary fluid mixture of ammonia and water, which is one of the primary fluid pairs being considered for absorption heat pumps. The effect of a two-component mixture on tube-side temperature profiles was investigated in detail. Several alternative fin types were considered for the air side. A comparison of the performance of condensers with these different fin types was made through the computation of heat exchanger mass for equivalent heat duties. Within the limitations of the available heat transfer and friction factor correlations, round-tube heat exchangers with flat, wavy, louvered, and annular fins were designed to meet typical absorption cycle design conditions. The effect of design variables, such as parallel/serpentine flow arrangements of tubes, fin densities, core depth, and other parameters of heat transfer performance and tube- and air-side pressure drops, was investigated. It was shown that wavy fins result in the smallest heat exchanger mass among the fin geometries considered here for the imposed design objectives and constraints.Units: Dual