Anjarwati, Tria (2016) Analisis Termal Air Heater Dengan Elemen Pemanas Dun-Dun-Du Sebagai Fungsi Beban PLTU Paiton Unit 3 PT. IPMOMI. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Penggunaaan batubara campuran antara sub bituminus dan bituminus yang nilai kalorinya lebih rendah (<5200 Kcal/kg) dan total moisture lebih tinggi (25-30% moisture content ) PLTU Paiton Unit 3 PT. International Power Mitsui Operation and Maintenance Indonesia (PT. IPMOMI) telah menyebabkan menurunnya efisiensi pembakaran. Alternatif yang dapat ditawarkan adalah dengan mengoptimalkan pemanfaatan panas sisa dari flue gas sehingga meningkatkan efisiensi dari pembakaran. Ljungstrom air heater adalah sebuah penukar panas rotari dengan kecepatan putar 1 rpm. Siklus fluegas dari ruang pembakaran sebelum dikeluarkan ke Electrostatic Precipitation (EP), terlebih dahulu dilewatkan air heater. Sisa panas yang terkandung pada fluegas dimanfaatkan untuk pemanasan awal udara dari PA Fan dan FD Fan agar efisiensi sistem meningkat. Desain air heater pada PLTU Paiton Unit 3 terbagi menjadi tiga jalur, satu jalur di sektor aliran fluegas, dan dua jalur pada sektor aliran udara yaitu secondary air dari FD Fan serta primary air dari PA Fan. Selain itu heating element pada air heater juga terbagi menjadi tiga yaitu tipe Double Undulated Notch (DUN) pada sisi hot end layer dan intermediate layer, serta tipe Double Undulated (DU) pada sisi cold end layer.
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The use of a mixture of sub bituminous coal and bituminous in lower calorific value (<5200 Kcal / kg) and total moisture is higher (25-30% moisture content) Paiton Unit 3 PT. International Power Mitsui Operation and Maintenance Indonesia (PT. IPMOMI) has caused a decrease in the efficiency of combustion. Alternatives that can be offered is to optimize the utilization of the residual heat from flue gases thereby will increase the efficiency of combustion. Ljungstrom air heater is a rotary heat exchanger with a rotational speed 1 rpm. Fluegas cycle of the combustion chamber before it is issued to Electrostatic Precipitation (EP), first passed the air heater. Residual heat contained in fluegas used to preheat the air from the PA and FD Fan in order to increase system efficiency. Design of the air heater at the Paiton Unit 3 is divided into three lanes, one lane in fluegas stream sector, and two lanes on the secondary sector, namely air flow of air from the primary air and the PA Fan of FD Fan. In addition to the heating element in the air heater is also divided into three types Double undulated Notch (DUN) on the side of the hot end layer and the intermediate layer, and the type of double undulated (DU) on the side of the cold end layer.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSM 621.197 Anj a |
| Uncontrolled Keywords: | Ljungstrom air heater; konduksi transien; effectiveness; heat transfer |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK201 Electric Power Transmission T Technology > TJ Mechanical engineering and machinery > TJ263 Heat exchangers |
| Divisions: | Faculty of Industrial Technology > Mechanical Engineering > 21201-(S1) Undergraduate Thesis |
| Depositing User: | Yeni Anita Gonti |
| Date Deposited: | 24 Apr 2020 14:21 |
| Last Modified: | 24 Apr 2020 14:21 |
| URI: | http://repository.its.ac.id/id/eprint/75868 |
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