Yuliawati, Asri Anisa (2020) Kajian Pembakaran Sampah Plastik Polystyrene (PS) Terhadap Emisi, Suhu Pembakaran, Dan Destruction Removal Efficiency Pada Insinerator. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Penelitian ini bertujuan untuk mengetahui pengaruh faktor
operasi insinerator. Faktor operasi yang dipilih yaitu feeding rate
dan excess air. Kedua faktor ini menjadi control terhadap
temperature, time, dan turbulence (3T) dalam pengoperasian
insinerator. Feeding rate dan excess air dijadikan variabel dalam
penelitian ini. Feeding rate dan excess air diteliti pengaruhnya
terhadap emisi, suhu pembakaran dan Destruction Removal
Efficiency (DRE). Selain itu juga bertujuan untuk menentukan nilai
feeding rate dan excess air yang mamou menghasilkan emisi
paling rendah dan suhu pembakaran paling tinggi. Variabel feeding
rate divariasikan dari 2 kg/jam – 31 kg/jam. Sedangkan untuk
variabel penambahan excess air dimulai dari 5%, 15%, dan 25%.
Selain itu juga memperhitungkan desain dari Insinerator
Departemen Teknik Lingkungan ITS.
Penelitian dilakukan dengan simulasi persamaan
matematis. Nilai DRE dihitung dengan rumus DRE yang berdasar
pada jumlah sampah yang terdestruksi menjadi abu. Dimana
produksi abu dihitung dengan menggunakan fraksi kandungan
abu. Untuk parameter emisi dan suhu pembakaran menggunakan
dan rumus desain insinerator. Rumus desain insinerator ini
didasari oleh kesetimbangan persamaan reaksi pembakaran yang
terjadi. Sampah yang dibakar yaitu sampah dengan komposisi
homogen. Hanya terdiri dari sampah plastik polystyrene dengan
rumus senyawa (C8H8)x. Proses pembakaran yang terjadi
diasumsikan sempurna, menghasilkan CO2 dan H2O.
Dari hasil simulasi pembakaran pada insinerator secara
teoritis pada penelitian ini, diketahui bahwa semakin tinggi feeding
rate maka semakin tinggi pula emisi dan suhu pembakaran yang
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dihasilkan. Untuk hasil analisis pada variabel excess air, semakin
besar persentase excess air yang ditambahkan, suhu pembakaran
yang dicapai semakin rendah. Dari hasil penelitian juga didapatkan
bahwa emisi CO2 dan N2 paling rendah dihasilkan pada feeding
rate 2 kg/jam pada semua variasi excess air yaitu sebesar 6,764
kgCO2/jam dan 20,585 kgN2/jam. Sedangkan suhu pembakaran
paling tinggi dihasilkan pada feeding rate 31 kg/jam dengan variasi
excess air 5% yaitu sebesar 1185,271 celsius. Serta untuk nilai
DRE diperoleh sama untuk semua variasi feeding rate sebesar
99,96%.
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This study aims to determine the effect of feeding rate and
excess air on emissions, combustion temperatures, and
Destruction Removal Efficiency (DRE). In incineration operation,
these two factors control the temperature, time, and turbulence
(3T). This study also aims to determine the value of feeding rate
and excess air which can produce the lowest emissions and the
highest combustion temperature. The value feeding rate used in
this study is varied from 2 kg/hour - 31 kg/hour. Whereas the
variation of the addition of excess air in this study is 5%, 15%, and
25%. It also takes into account the design of the ITS Environmental
Engineering Department Incinerator.
The study was conducted using mathematical equations
simulation. The DRE value is calculated using a formula based on
the amount of waste that is reduced to ash. As for ash production,
it is calculated using the ash content fraction. Emissions and
combustion temperatures are estimated using the incinerator
design formula. This incinerator design formula is based on the
equilibrium of the combustion reaction that occurs. Homogeneous
waste is used in this study. Where it only consists of polystyrene
plastic waste with the empirical formula of (C8H8)x. The combustion
process that occurs is assumed to be complete, producing CO2 and
H2O.
From the theoretical results of the combustion simulation in
this study, it is known that the feeding rate has a proportional
relationship with the emissions and the resulting combustion
temperature. The higher the feeding rate, the higher the emissions
and combustion temperatures produced. While excess air has an
iv
inverse relationship with the combustion temperature. The bigger
the percentage of excess air added, the lower the combustion temperature achieved. The results of this research also show that the lowest CO2 and N2 emissions were generated at a feeding rate of 2 kg/hour in all variations of excess air. With 6.764 kgCO2/hour and 20.585 kgN2/hour are generated. While the highest combustion temperature achieved is 1185.271 Celsius with 31 kg/hour feeding rate at 5% excess air. For all variations of feeding rate the DRE values obtained having the same value, in which 99.96%.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | insinerasi plastik polystyrene, DRE, feeding rate, excess air, emisi polystyrene incineration, DRE, feeding rate, excess air, emission |
| Subjects: | T Technology > TD Environmental technology. Sanitary engineering > TD796 Incineration. Incinerators T Technology > TD Environmental technology. Sanitary engineering > TD883.5 Air--Pollution |
| Divisions: | Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Environmental Engineering > 25201-(S1) Undergraduate Thesis |
| Depositing User: | Asri Anisa Yuliawati |
| Date Deposited: | 19 Aug 2020 03:49 |
| Last Modified: | 23 Jun 2023 07:39 |
| URI: | http://repository.its.ac.id/id/eprint/78564 |
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