ANALISIS PERFORMANCE COOLING TOWER TIPE INDUCED DRAFT COUNTER FLOW PLTP KAMOJANG UNIT 5

Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Pub Date : 2022-11-26 DOI:10.35308/jmkn.v8i2.6526

Hasan Abdurohman, Juli Mrihardjono, S. Darmanto

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Abstract

Cooling tower is a heat exchanger used to cool water from the condenser. The process is carried out by contacting water with air directly and discharged into the atmosphere using air fluid that is flowed naturally or flowed by a fan. Cooling tower type used in PLTP Kamojang Unit 5 is Induced draft Counter Flow. This equipment more important in increasing turbine efficiency, therefore special treatment is needed by knowing and observing the performance of the Cooling tower so that it can be analyzed in actual conditions and make decision steps in carrying out further repairs and maintenance, this is the basis of research that will be carried out by looking for value and the Cooling tower performance trendline. The calculation method uses the standard ASME PTC 23-2003 and CTI ATC-105 where the results are the calculation baseline and the historical trendline of Cooling tower performance based on the parameters of the 3-cell Cooling tower operating conditions. The parameters tested are by taking 5 valid data on PLTP KMJ Unit 5, then the Tower Capability performance values are obtained as follows, namely in the initial commissioning conditions the performance value is 92,1%, Q1 2021 is 78,8%, Q3 2021 is 74, 3%, Q4 2021 is 84,7%, and Q1 2022 is 83,8%. There was a decrease in Q3 2021. Then there was an increase in the trend in Q4 2021 due to previous overhaul activities on the Cooling tower. Keywords: Cooling tower, trendline, overhaul, tower capability

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卡莫江5号机组冷却塔型引风逆流PLTP性能分析

冷却塔是一种热交换器，用于冷却冷凝器中的水。该工艺是通过水与空气直接接触并使用自然流动或由风扇流动的空气流体排放到大气中来进行的。卡莫江5号机组采用的冷却塔型式为引风逆流式。该设备对提高汽轮机效率更为重要，因此需要通过了解和观察冷却塔的性能进行特殊处理，以便在实际情况下进行分析，并在进行进一步的维修和维护时做出决策步骤，这是寻找价值和冷却塔性能趋势线进行研究的基础。计算方法采用标准ASME PTC 23-2003和CTI ATC-105，计算结果为冷却塔运行工况参数的计算基线和冷却塔性能的历史趋势线。选取PLTP KMJ 5号机组的5个有效数据进行参数测试，得到塔能性能值为:在初始调试条件下，性能值为92.1%，2021年Q1为78.8%，2021年Q3为74.3%，2021年Q4为84.7%，2022年Q1为83.8%。2021年第三季度有所下降。然后，由于冷却塔之前的大修活动，2021年第四季度的趋势有所增加。关键词:冷却塔，趋势线，大修，塔性能

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Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi

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