钎焊板式换热器（BPHE）最近被引入空调行业，因为它们可以提供更高的单位体积传热率，并且比传统的管壳式换热器更紧凑。本报告提出了一种新的实验方法和结果，用于研究铜焊式冷凝器在污垢工况下的水侧热性能。在实验室中开发了高和中等水污染势，以在实验过程中创造导致严重和中等降水和颗粒物污染的条件。化学抑制剂有意防止腐蚀和生物污染。 除其他优点外，新方法独立于实验室的地理位置和当地供水来源。使用这项技术，水的Langelier饱和指数约为3-3.5，这代表了非常严重的污染条件。

Brazed plate heat exchangers (BPHEs) have been recently introduced in the air conditioning industry because they could provide higher heat transfer rate per unit volume and are more compact than conventional tube-and-shell exchangers. This report presents a new experimental methodology and results of waterside thermal performance of brazed-type condensers under fouling operating conditions. High and medium water fouling potentials were developed in laboratory to create conditions that cause severe and medium precipitation and particulate fouling during the experiments. Corrosion and biological fouling were intentionally prevented by chemical inhibitors. Among other advantages, the new methodology is independent from the geographical location of the laboratory and from the local water supply source. Using this technique a Langelier Saturation Index of the water of about 3 - 3.5 was achieved, which represents very severe fouling conditions.