scholarly journals ANALISIS NILAI KALOR DAN LAJU PEMBAKARAN BRIKET TONGKOL JAGUNG SEBAGAI SUMBER ENERGI ALTERNATIF

2021 ◽  
Vol 7 (2) ◽  
pp. 382
Author(s):  
Dwi Pangga ◽  
Sukainil Ahzan ◽  
Habibi Habibi ◽  
A’an Hardiyansyah Putra Wijaya ◽  
Linda Sekar Utami
Keyword(s):  
Burning Rate ◽  
Combustion Rate ◽  
Alternative Energy ◽  
Calorific Value ◽  
Heating Value ◽  
Corn Cobs ◽  
Alternative Energy Source ◽  
High Heating Value ◽  
Rate Of Combustion ◽  
High Heating

ABSTRAKTujuan dari penelitian ini yaitu untuk menghasilkan briket tongkol jagung sebagai alternative sumber energi yang memiliki nilai kalor yang tinggi. Briket tongkol jagung dibuat dari tongkol jagung yang sudah dikeringkan dan dihaluskan sebelumnya dengan ukuran 20 mesh. Masing-masing perlakuan dicetak dengan variasi persentase perekat tepung tapioka yaitu 5%, 10%, dan 15%. Selain variasi perekat dilakukan juga variasi tekanan pembentukannya untuk melihat komposisi terbaik yang menghasilkan nilai kalor yang tinggi dan laju pembakaran yang sesuai. Briket selanjutnya diuji nilai kalor dan laju pembakarannya dengan menggunakan alat bom calorimeter. Hasil penelitian menunjukkan bahwa secara berturut-turut nilai kalor dan laju pembakaran briket dengan persentase komposisi perekat 5%, 10%, 15% yaitu 21,00 kJ, 22,68 kJ, 31,08 kJ, dan 12,00 gram/menit, 13,33 gram/menit, 13,50 gram/menit. Hasil terbaik dihasilkan pada komposisi persentase perekat 15% dengan nilai kalor mencapai 31,08 kJ, dan laju pembakaran 13,50 gram/menit yang tidak terlalu jauh meningkat dibandingkan dengan komposisi persentase perekat lainnya. Kata kunci: briket; tongkol jagung; nilai kalor; laju pembakaran  ABSTRACTThe purpose of this research is to produce corn cobs briquettes as an alternative energy source that has a high calorific value. Corn cobs briquettes are made from corn cobs that have been dried and previously mashed with a size of 20 mesh. Each treatment was printed with variations in the percentage of tapioca starch adhesive, namely 5%, 10%, and 15%. In addition to variations of the adhesive, variations in the formation pressure were also carried out to see the best composition that produced a high heating value and an appropriate combustion rate. The briquettes were then tested for calorific value and rate of combustion using a bomb calorimeter. The results showed that the calorific value and burning rate of briquettes with the percentage of adhesive composition 5%, 10%, 15%, were 21.00 kJ, 22.68 kJ, 31.08 kJ, and 12.00 gram/minute, respectively. 13.33 grams/minute, 13.50 grams/minute. The best results were obtained at 15% adhesive percentage composition with a calorific value of 31.08 kJ, and a burning rate of 13.50 gram/minute which was not significantly increased compared to other adhesive percentage compositions. Keywords: briquettes; corn cobs; calorific value; combustion rate

scholarly journals USE OF CASTOR OIL PLANT PIE FOR SOLID BIOFUEL PRODUCTION

2019 ◽  
Vol 8 (3) ◽  
Author(s):  
Paula Martucheli Amaral ◽  
Luciano Donizeti Varanda ◽  
Gabriela Tami Nakashima ◽  
Pâmela Beatriz Moreira De Oliveira ◽  
Luis Ricardo Oliveira Santos ◽  
...  
Keyword(s):  
Castor Oil ◽  
Mechanical Test ◽  
Calorific Value ◽  
Biofuel Production ◽  
Residual Oil ◽  
Heating Value ◽  
High Heating Value ◽  
Solid Biofuel ◽  
High Heating ◽  
Oil Plant

The objective of this study was the characterization, analysis and compaction of residues from castor oil plant pie extraction to verify its potential as solid biofuel. The chemical analysis, the mechanical test and the gross calorific value had satisfactory results. With the extraction of residual oil of the material there was a decrease on the high heating value. The produced briquettes presented good longitudinal expansion as well as mechanical strenght, however the presence of residual oil had influence on their strenght. In conclusion, the castor oil plant pie possesses  energetic characteristics suitable for solid biofuel production, in addition it contributes with the reduction of industrial waste amount.

scholarly journals The Effect of Binding Types on the Biomass Briquette Calorific Value from Cow Manure as a Solid Energy Source

2019 ◽  
Vol 125 ◽  
pp. 13004
Author(s):  
Amanda Anatasya ◽  
Ngurah Ayu Ketut Umiati ◽  
Agus Subagio
Keyword(s):  
Energy Source ◽  
Sugar Cane ◽  
Alternative Energy ◽  
Calorific Value ◽  
Carbonization Temperature ◽  
Cow Dung ◽  
Test Results ◽  
Composition Effect ◽  
Heating Value ◽  
Alternative Energy Source

Biomass briquettes have been made as an alternative energy source from cow dung waste. Molasses and starch were used as binder material with a carbonization temperature of 400 °C for 2 hours. The work aims to produce biomass briquettes with the best heating value based on analysis of composition effect and type of binder on the briquette with calorific value. The heat test results showed that briquettes with 10% sugar cane binding content produced the highest calorific value of 3907.5 calories/gram. Sugar cane drops become the better binder than starch in biomass briquettes production.

scholarly journals Study of making coal water slurry with lignite Pendopo coal

2021 ◽  
Vol 882 (1) ◽  
pp. 012029
Author(s):  
M A Rahmanta
Keyword(s):  
Moisture Content ◽  
Calorific Value ◽  
Fixed Carbon ◽  
Heating Value ◽  
Water Slurry ◽  
High Heating Value ◽  
Coal Water Slurry ◽  
High Heating ◽  
Lignite Coal ◽  
Total Moisture Content

Abstract The Coal Water Slurry (CWS) technology increases the calorific value and changes the phase of coal from solid to liquid. The CWS Plant with a coal capacity of 1.4 t/hour located at Karawang, West Java converts lignite coal to CWS. Coal undergoes pulverizing, upgrading, and slurry-making processes to become CWS. Pulverization is the process of refining coal size into 200 mesh. The upgrading process is through reducing the moisture content in heat exchangers (HE). It occurs in HE where the coal is pressurized to 15 MPa and the temperature is maintained at 330 0C for 30 minutes. The research objective was to determine the CWS characteristics of the South Sumatra Pendopo lignite coal. The method used is through testing where the Pendopo coal is converted into CWS at the CWS Plant. The result shows that Pendopo coal which has a heating value of High Heating Value (HHV) 2,725.00 kCal/kg As Received (AR) has an increase in HHV heating value of 3,218.00 kcal/kg AR when it becomes CWS. The total moisture content of Pendopo coal has decreased from 49.36% to 44.58% when it becomes CWS. The fixed carbon content of Pendopo coal increased from 19.78% AR to 24.01% AR.

scholarly journals Analisis Limbah Kelapa Sawit Sebagai Bahan Bakar Boiler dengan Menggunakan Variasi Campuran Antara Fiber dan Cangkang Buah Sawit

2020 ◽  
Vol 3 (1) ◽  
pp. 22
Author(s):  
Jatmiko Edi Siswanto
Keyword(s):  
Water Content ◽  
Palm Oil ◽  
Flue Gas ◽  
Calorific Value ◽  
Heating Value ◽  
Fiber Composition ◽  
High Heating Value ◽  
High Heating ◽  
Shell Composition ◽  
Research Analysis

The growth of the palm oil management industry in Jambi which has an impact on the increasing size of palm oil management holidays include Fiber and Shells. Each processing of 1 ton of FFB produces 120 kg of fiber and produces 50 kg of shells. Where the two wastes have a high calorific value and thousands of tons of FFB are processed in Jambi every month. In this analysis will analyze the composition of combustion using fiber and shell to get the highest calorific value on the Boiler, where the composition analyzed is the ratio of 100% Fiber, 75% Fiber 25% Shell, 50% Fiber 50% Shell, 25% Fiber 75% Shell 100% shell. The results of research analysis The heating value of fiber and shell composition variations ranged from 14978,053 kJ/kg to 15463,083 kJ/kg. With the highest heating value is 100% fiber composition (15463,083 kJ / kg), and the lowest heating value is 100% shell composition. (14978,053 kJ/kg). The composition that gives the highest profit is the composition of 100% fiber. With the details of the value of water content, air requirements, low flue gas, and also produces a high heating value.

scholarly journals The Effect of the Type and Composition of the Adhesive on the Physical Properties and the Rate of Combustion Hyacinth Biobriquettes

2020 ◽  
Vol 8 (2) ◽  
pp. 85
Author(s):  
Lalu Muhamad Alfian Ramdani ◽  
Sukainil Ahzan ◽  
Dwi Sabda Budi Prasetya
Keyword(s):  
Physical Properties ◽  
Water Content ◽  
Combustion Rate ◽  
Calorific Value ◽  
Test Results ◽  
Heating Value ◽  
Rate Of Combustion ◽  
Materials Used ◽  
Tapioca Flour ◽  
Adhesive Materials

This study aimed to identify the effects of variety and composition of the adhesive used to the physical properties and the rate of combustion hyacinth biobriquettes. The physical properties referred to are water content, density and heating value. This research is an experimental study with a literacy study conducted in 3 stages, preparing tools and materials, making biobriquettes, and testing biobriquettes. The main ingredients used in the manufacture of biobriquettes are water hyacinth which is obtained at the Batujai Dam, Central Lombok Regency and the adhesive materials used are wheat flour, tapioca flour and cement. The method used to test the water content and density of the biobriquette was oven, while the calorific value and the rate of combustion were by heating water from the biobriquette combustion. The results showed that the biobriquette water content ranged from 5.138% - 13.953%, density 0.412 g/cm3 - 0.513 g/cm3, calorific value 2984.520 cal - 4476.780 cal, and combustion rate 0.029543 g/s - 0.042431 g/s. Based on the test results, it is known that the addition of adhesive material causes the water content, density, and combustion rate of the biobriquette to increase but the calorific value tends to decrease.

scholarly journals UJI LAJU PEMBAKARAN DAN NILAI KALOR BRIKET WAFER SEKAM PADI DENGAN VARIASI TEKANAN

2020 ◽  
Vol 6 (2) ◽  
pp. 200
Author(s):  
Muh. Arafatir Aljarwi ◽  
Dwi Pangga ◽  
Sukainil Ahzan
Keyword(s):  
Water Content ◽  
Combustion Rate ◽  
Rice Husk ◽  
Manufacturing Process ◽  
Calorific Value ◽  
Heating Value ◽  
Rate Of Combustion ◽  
Rate Of Increase

ABSTRAKPenelitian ini bertujuan untuk mengetahui laju pembakaran dan nilai kalor briket wafer sekam padi dengan variasi tekanan. Proses pembuatannya dengan menggunakan alat tekan briket, bahan yang digunanakan yaitu sekam padi dan tepung kanji. Hasil densitas briket wafer sekam padi dengan variasi tekanan secara berurut 20 PSI yaitu sebesar 0,453 g/cm3, 30 PSI yaitu sebesar 0,467 g/cm3, dan 40 PSI yaitu sebesar 0,500 g/cm3. Nilai kalor briket wafer sekam padi dengan variasi tekanan secara berurut 20 PSI yaitu sebesar 4.793,94 kalori, 30 PSI yaitu sebesar 5.137,64 kalori, 40 PSI yaitu sebesar 5.266,52 kalori. Kadar air yang dihasilkan dengan variasi tekana secara berurut 20 PSI yaitu sebesar 6,45 %, 30 PSI yaitu sebesar 6,40 %, 40 PSI yaitu sebesar 5,65 %. Nilai laju pembakaran briket wafer sekam padi secara berurut 20 PSI yaitu sebesar 2,2212  gram/menit, 30 PSI yaitu sebesar 2,2878 gram/menit, 40 PSI yaitu sesar 2,4363 gram/menit. Dapat disimpulkan bahwa semakin besar tekanan maka nilai kalor dan laju pembakaran dari briket wafer sekam padi akan semakin meningkat. Kata kunci: sekam padi, briket, nilai kalor, laju pembakaran. ABSTRACTThis study aims to determine the combustion rate and heating value of rice husk wafer briquettes with variations in pressure. The manufacturing process uses briquette press, the ingredients used are rice husk and starch. The results of the density of rice husk wafer briquettes with a sequence of 20 PSI pressure variations in the amount of 0.453 g/cm3, 30 PSI in the amount of 0.467 g/cm3, and 40 PSI in the amount of 0.500 g/cm3. The calorie value of rice husk wafer briquettes with a variety of sequential pressure variations of 20 PSI is 4,793.94 calories, 30 PSI is 5,137.64 calories, 40 PSI is 5,266.52 calories. The resulting water content with a variety of pressures in sequence 20 PSI is 6.45%, 30 PSI is 6.40 %, 40 PSI is 5.65%. The value of the rate of burning of rice husk wafer briquettes in sequence of 20 PSI is 2.22212 grams / minute, 30 PSI is 2.22878 grams / minute, 40 PSI is 2.4363 grams / minute fault. It can be concluded that the greater the pressure, the calorific value and the rate of combustion of rice husk wafer briquettes will increase.  Keywords: rice husk, briquettes, heating value, rate of increase.

scholarly journals Assessment of Renewable Alternatives to Coal, Based on Their High Heating Value and Global Warming Potential

2021 ◽  
pp. 19-23
Author(s):  
V. Dhivakhar ◽  
Maju Varghese ◽  
Keerthi M. S. ◽  
S. Kaviya
Keyword(s):  
Global Warming ◽  
Global Warming Potential ◽  
Power Plants ◽  
Thermal Power ◽  
Thermal Power Plants ◽  
Major Contributor ◽  
Heating Value ◽  
High Heating Value ◽  
Green House Gas ◽  
High Heating

About 40% of the Global Electricity produced is fuelled by coal. Although Coal has various advantages like good High Heating Value, easy availability etc., it also has various disadvantages. Green House Gas Released from Coal Thermal Power Plants is the single major contributor to Global warming. Coal is also nonrenewable. Hence it is important to analyze the viability of potential alternatives and reduce the usage of coal. In this assessment, various potential replacements of coal have been analyzed based on their High heating value (HHV) and their Global Warming Potential. The Global warming Potential (GWP) of the assessed fuels have been calculated by the Respiratory Quotient (RQ) Factor method. Hence a direct comparison between Coal and other replacements based on their HHV and GWP has been performed.

scholarly journals PERBANDINGAN NILAI BAKAR BRIKET BATUBARA DAN BRIKET ARANG (CAMPURAN CANGKANG BINTARO (Cerbera Manghas) DAN BAMBU BETUNG (Dendrocalamus Asper)

2019 ◽  
Vol 6 (1) ◽  
pp. 1
Author(s):  
Ida Febriana ◽  
Zurohaina Zurohaina ◽  
Sahrul Effendy
Keyword(s):  
Alternative Energy ◽  
Bituminous Coal ◽  
Raw Materials ◽  
Calorific Value ◽  
Volatile Matter ◽  
Carbonization Temperature ◽  
Fixed Carbon ◽  
Alternative Energy Source ◽  
Tapioca Flour ◽  
Cerbera Manghas

Charcoal briquettes are smokeless fuels which are a type of solid fuel whose fly substance is made low enough so that the smoke generated on its utilization will not interfere with health. In this study charcoal briquettes were made from bintaro shell waste and betung bamboo using tapioca flour adhesives. This study aims to obtain the best quality sub-bituminous coal briquettes and coal briquettes. In this study the carbonization temperature used was 400ᵒC and the composition of raw materials for bintaro shells and betung bamboo was 50:50, the composition of raw materials for sub-bituminous coal and straw 90:10. The method used in this research is experiment or experimental method, with fuel value collection using ASTM D5865-03 standard. The results obtained from this study are for charcoal briquettes with 4000C carbonization temperature Inherent Moisture value of 1.91%, ash 2.29%, volatile matter 23.79%, fixed carbon 72.01% and calorific value 5878.7 kal / gr, and for coal briquettes obtained value Inherent Moisture 0.52%, ash 4.42%, volatile matter 17.98%, fixed carbon 77.08% and calorific value 7152.6 kal / gr. The fuel value of coal briquettes is greater than that of charcoal briquettes, but the combustion value of charcoal briquettes includes a good calorific value as an alternative energy source, and is in accordance with the SNI standard of 5000 kal / gr, even close to the Japanese standard 6000 cal / gr. Keywords: Bintaro, briquette, calorific value

scholarly journals Potensi Penerapan Energi Terbarukan Sebagai Upaya Mewujudkan Kemandirian Desa: Studi Kasus Desa Lendang Nangka Lombok Timur

2021 ◽  
Vol 13 (1) ◽  
pp. 1-10
Author(s):  
Shafwan Amrullah
Keyword(s):  
Air Flow ◽  
Heating Value ◽  
High Heating Value ◽  
High Heating

Desa saat ini didorong menjadi desa mandiri, baik dalam bidang energi maupun ekonomi dengan mengimplementasikan energi terbarukan untuk meningkatkan kemandirian energi sebagai salah satu langkah meningkatkan ekonomi masyarakat. Penelitian ini bertujuan untuk menganalisis potensi penggunaan energi terbarukan seperti Pembangkit Listrik Tenaga Bayu (PLTB), Pembangkit Listrik Tenaga Surya (PLTS), Pembangkit Listrik Tenaga Air (PLTA), dan Konversi Energi Gasifikasi di desa Lendang Nangka, Kabupaten Lombok Timur. Penelitian dilakukan dengan pengumpulan data baik dari BMKG dan pengujian secara langsung menggunakan alat Air Flow Anemometer GM8902 untuk mengetahui kecepatan angin dan DIGITAL TECHNOMETER LX-1010B untuk mengetahui intensitas cahaya matahari. Selain itu dilakukan wawancara kepada pengusaha kecil dan menengah untuk mengetahui penggunaan energi dalam menyokong proses produksinya. Hasil dari penelitian menunjukkan bahwa potensi PLTB yang dapat diemplementasikan adalah PLTB sekala kecil dengan daya sekitar 23,4-632,88 kWh/turbin. Untuk potensi PLTS menghasilkan daya sebesar 410-566 kWh per meter persegi panel surya. Untuk potensi PLTA, turbin yang cocok adalah turbin ukuran kecil dengan potensi daya sekitar 0,3024-2,2194 kWh. Sedangkan untuk potensi penggunaan converter energi jenis gasifikasi dapat dilakukan untuk mengurangi penggunaan bahan bakar tidak terbarukan sekaligus menghemat biaya porduksi. Sebab, nilai High Heating Value gas sintetik yang dihasilkan 1,7 kali lebih besar daripada pembakaran langsung dengan kayu.

scholarly journals Energy Recovery from Waste Tires Using Pyrolysis: Palestine as Case of Study

Energies ◽  
2020 ◽  
Vol 13 (7) ◽  
pp. 1817 ◽  
Author(s):  
Ramez Abdallah ◽  
Adel Juaidi ◽  
Mahmoud Assad ◽  
Tareq Salameh ◽  
Francisco Manzano-Agugliaro
Keyword(s):  
Carbon Black ◽  
West Bank ◽  
The Other ◽  
Liquid Fuels ◽  
Pyrolysis Oil ◽  
Pyrolysis Gas ◽  
Heating Value ◽  
Waste Tires ◽  
High Heating Value ◽  
High Heating

The first industrial-scale pyrolysis plant for solid tire wastes has been installed in Jenin, northern of the West Bank in Palestine, to dispose of the enormous solid tire wastes in the north of West Bank. The disposable process is an environmentally friendly process and it converts tires into useful products, which could reduce the fuel crisis in Palestine. The gravimetric analysis of tire waste pyrolysis products from the pyrolysis plant working at the optimum conditions is: tire pyrolysis oil (TPO): 45%, pyrolysis carbon black (PCB): 35%, pyrolysis gas (Pyro-Gas): 10% and steel wire: 10%. These results are depending on the tire type and size. It has been found that the produced pyrolysis oil has a High Heating Value (HHV), with a range of 42 − 43   ( MJ / kg ) , which could make it useful as a replacement for conventional liquid fuels. The main disadvantage of using the TPO as fuel is its strong acrid smell and its low flash point, as compared with the other conventional liquid fuels. The produced pyrolysis carbon black also has a High Heating Value (HHV) of about 29 (MJ/kg), which could also encourage its usage as a solid fuel. Carbon black could also be used as activated carbon, printers’ ink, etc. The pyrolysis gas (Pyro-Gas) obtained from waste tires mainly consist of light hydrocarbons. The concentration of H2 has a range of 30% to 40% in volume and it has a high calorific value (approximately 31   MJ / m 3 ), which can meet the process requirement of energy. On the other hand, it is necessary to clean gas before the burning process to remove H2S from Pyro-Gas, and hence, reduce the acid rain problem. However, for the current plant, some recommendations should be followed for more comfortable operation and safer environment work conditions.

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