This experimental assessment aims to study the impact of twisted tape insert on city gas station (CGS) heaters performance. The interesting point in this study is that the unflavored pressure drop in many cases of using tube inserts is quite favor in this case. In other words, this insert is used in a station whose primary duty is to heat the natural gas and reduce its pressure, and the insert does a part of the pressure reduction besides enhances the heat transfer rate. The effects of twist ratio and heater water temperature on the heater performance features are assessed, and the outcomes are compared with those without inserts case. The outcomes indicated that the use of insert entails an intensification in the heater performance by up to 16% and the best heat transfer enhancement belonged to the insert with the twist ratio of 1.05 at the heater water temperature of 35 °C. In addition, the economic analysis revealed that the capital return rate and the time of the return of capital are quite desirable. Furthermore, the exergy analysis showed that the destroyed exergy diminishes by using the twisted tape insert, and the higher the twist ratio and heater water temperature, the less the destroyed exergy. This is because a CGS unit duty is reducing pressure, and using an insert can be helpful.

该实验评估旨在研究扭曲的带状插入物对城市加油站（CGS）加热器性能的影响。这项研究中有趣的一点是，在许多情况下，使用管嵌件时无味的压降在这种情况下是非常有利的。换句话说，该插入件用在主要用于加热天然气并降低其压力的工位中，并且该插入件除了提高传热率外，还进行了一部分压力降低。评估了扭曲比和加热器水温对加热器性能特征的影响，并将结果与​​没有插入件的情况进行了比较。结果表明，使用嵌件会使加热器性能提高多达16％，并且最佳的传热效果属于扭曲比为1的嵌件。05在加热器水温为35°C时。此外，经济分析表明，资本回报率和资本返还时间是相当可取的。此外，火用分析表明，通过使用扭曲的带状插入物，被破坏的火用减少，并且扭曲比和加热器水温越高，被破坏的火用越少。这是因为CGS装置的工作是降低压力，因此使用插入件可能会有所帮助。