Document Type : Research Article
Authors
1
Department of Chemical Engineering, Kermanshah Branch, Islamic Azad University, Kermanshah, Iran.
2
Kermanshah Petroleum Products Refining and Distribution Company, Kermanshah, Iran
3
Department of Chemical Engineering, Kermanshah Branch, Islamic Azad University, Kermanshah, Iran
4
Department of Chemical Engineering, Faculty of Petroleum and Chemical Engineering, Razi University, Kermanshah, Iran
Abstract
Generally, gas is known as the main source of energy. In the industry, a lot of energy is used to increase the power of the heaters in the pressure reduction stations. Therefore, in this study, in order to increase the speed of the heat transfer rate in the heaters of the pressure reduction station, parts with special angles (classic twisted tape) have been embedded in the coils. The above study was carried out on the heater of CGS & TBS pressure reduction station of Maviyan (Kamiaran city, Kurdistan province) with a capacity of 2500 2500 m3/h. In this regard, different temperature conditions of the water heater have been carefully investigated. On the other hand, three classic twisted tape with three different steps had been designed. In all models, the length of the classic twisted tape is 200 cm, and the height is 3.8 cm. The length of each step in the first model is 8 cm, the second model is 6 cm, and in the third model is 4 cm. The results shows that the maximum percentage of heat transfer improvement using the classic twisted tape with the third structure in a water temperature of 35º Celsius is 16%. On the other hand, the minimum percentage of heat transfer improvement in the classic twisted tape with the first structure at 60° Celsius is about 3.82%. These results can be effective and practical for increasing heat transfer efficiency and reducing conversion costs.
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