scholarly journals Measurement of Heating Value of Rice Husk by Using Oxygen Bomb Calorimeter with Benzoic Acid as Combustion Adjuvant

2012 ◽  
Vol 17 ◽  
pp. 208-213 ◽  
Author(s):  
Jianfeng Shen ◽  
Shuguang Zhu ◽  
Xinzhi Liu ◽  
Houlei Zhang ◽  
Junjie Tan
Keyword(s):  
Benzoic Acid ◽  
Rice Husk ◽  
Heating Value ◽  
Bomb Calorimeter ◽  
Oxygen Bomb

Research on the Heating Value Measurement of Ethanol-Biodiesel-Diesel Blend

2013 ◽  
Vol 333-335 ◽  
pp. 1884-1888
Author(s):  
Qi Zeng
Keyword(s):  
National Standard ◽  
Heating Value ◽  
Bomb Calorimeter ◽  
Oxygen Bomb ◽  
Calculation Results ◽  
Value Measurement

Research has been done on the heating value of ethanol, biodiesel and diesel, and their heating values were measured with oxygen bomb calorimeter, by means of GB/T384-81 national standard. All errors are limited in the range of national standard. Research and calculation results indicate that the heating value of ethanol-biodiesel-diesel decreases with the increasing ratio of ethanol and biodiesel. The calculation value through experimental formula of low heating value is higher than that of experimental measuring. The higher percentage is in the range of 5.7%~7.6%.

scholarly journals ANALISA NILAI KALOR DAN LAJU PEMBAKARAN PADA BRIKET CAMPURAN BIJI NYAMPLUNG (Calophyllm Inophyllum) DAN ABU SEKAM PADI

2014 ◽  
Vol 4 (2) ◽  
Author(s):  
M. Afif Almu ◽  
S. Syahrul ◽  
Yesung Allo Padang
Keyword(s):  
Combustion Rate ◽  
Rice Husk ◽  
Solid Phase ◽  
Heating Value ◽  
Bomb Calorimeter ◽  
Rate Of Combustion ◽  
New Energy ◽  
Heat Value ◽  
Independent Variable

The fuel is a source of energy with greatest consumption today. Where that stock is become less until 2025th. That’s way, it must to find some new energy to replacement, that one of alternative that is a fuel of solid phase that become from briquette. The briquette that use is compound between nyamplung’s fruit and rice husk. In this case because in NTB nyamplung’s fruit and  rice husk  is overabundance.This research conducted three testing that are testing of heat value, testing of combustion rate, and testing of dry measure. In case where to testing of heat value using bomb calorimeter. Independent variable both of this research is combine. Between nyamplung’s fruit and rice husk with comparison 1:1, 2:1, 3:1, 1:2, and 1:3. The highest heating value is obtained from sample 3:1 as big as 4792,40 cal/gr, the lowest rate of combustion from sample 3:1 as big as 0,00156 gr/s and the lowest of dry measure lowest from sample 1:1 that is 21,52%. 

scholarly journals An Analisys Of The Heating Value Of Briquettes Made From A Mixture Of Rice Husk and Tea Dregs using Tapioca Adhesive

2020 ◽  
Vol 2 (2) ◽  
pp. 57-64
Author(s):  
Hendra Irawan ◽  
Hendri Nurdin ◽  
Ambyar Ambyar ◽  
Rahmat Azis Nabawi
Keyword(s):  
Rice Husk ◽  
Raw Materials ◽  
Alternative Fuel ◽  
Public Knowledge ◽  
Rice Husks ◽  
Heating Value ◽  
Bomb Calorimeter ◽  
Test Tool ◽  
Heat Value ◽  
Optimum Heat

Increased energy consumption and lack of public knowledge to utilize rice husks and tea pulp as the most untapped briquette. The purpose of this research is to obtain a Calor value produced by rice husk briquette and tea pulp to be used as a briquette as an alternative fuel.. The results of the heat value test conducted using the Bomb calorimeter test tool showed optimum heat value in the variation of the 80% rice husk mixture and tea pulp and 20% tapioca adhesive, the value of the resulting heat of 11,638,112 kj/kg. This shows that the rice husk briquette and tea pulp with a mixture of comparison of 80% mixture of raw materials with 20% tapioca as higher glues produce a Calor value than 3 other variations. Based on the process that has been done shows that rice husk and tea pulp are potentially an alternative fuel.briquette and testing showed that rice husk and tea pulp could be potentially alternative fuel Konsumsi energi yang semakin meningkat dan kurangnya pengetahuan masyarakat dalam memanfaatkan sekam padi dan ampas teh sebagai briket yang belum dimanfaatkan secara maksimal. Tujuan penelitian ini adalah untuk mendapatkan nilai kalor yang dihasilkan briket sekam padi dan ampas teh untuk dijadikan briket sebagai bahan bakar alternatif.. Hasil pengujian nilai kalor yang dilakukan mengunakan alat bomb calorimeter test menunjukan nilai kalor yang optimum pada variasi 80% campuran sekam padi dan ampas teh dan 20% perekat tapioka, nilai kalor yang dihasilkan sebesar 11638.112 kj/kg. Hal ini menunjukan bahwa briket sekam padi dan ampas teh dengan perbandingan campuran 80% campuran bahan baku dengan 20% tapioka sebagai perekatnya lebih tinggi menghasilkan nilai kalor dari 3 variasi lainnya. Berdasarkan proses yang telah dilakukan menunjukan bahwa sekam padi dan ampas teh berpotensi sebagai bahan bakar alternatif.

Evaluasi Prediksi Higher Heating Value (HHV) Biomassa Berdasarkan Analisis Proksimat

2020 ◽  
Vol 4 (1) ◽  
pp. 1-7
Author(s):  
Made Dirgantara ◽  
Karelius Karelius ◽  
Marselin Devi Ariyanti, Sry Ayu K. Tamba
Keyword(s):  
Renewable Energy ◽  
Natural Gas ◽  
Key Words ◽  
Critical Analysis ◽  
Fossil Fuels ◽  
Calorific Value ◽  
Proximate Analysis ◽  
Heating Value ◽  
Bomb Calorimeter ◽  
Hhv Prediction

Abstrak – Biomassa merupakan salah satu energi terbarukan yang sangat mudah ditemui, ramah lingkungan dan cukup ekonomis. Keberadaan biomassa dapat dimaanfaatkan sebagai pengganti bahan bakar fosil, baik itu minyak bumi, gas alam maupun batu bara. Analisi diperlukan sebagai dasar biomassa sebagai energi seperti proksimat dan kalor. Analisis terpenting untuk menilai biomassa sebagai bahan bakar adalah nilai kalori atau higher heating value (HHV). HHV secara eksperimen diukur menggunakan bomb calorimeter, namun pengukuran ini kurang efektif, karena memerlukan waktu serta biaya yang tinggi. Penelitian mengenai prediksi HHV berdasarkan analisis proksimat telah dilakukan sehingga dapat mempermudah dan menghemat biaya yang diperlukan peneliti. Dalam makalah ini dibahas evaluasi persamaan untuk memprediksi HHV berdasarkan analisis proksimat pada biomassa berdasarkan data dari penelitian sebelumnya. Prediksi nilai HHV menggunakan lima persamaan yang dievaluasi dengan 25 data proksimat biomassa dari penelitian sebelumnya, kemudian dibandingkan berdasarkan nilai error untuk mendapatkan prediksi terbaik. Hasil analisis menunjukan, persamaan A terbaik di 7 biomassa, B di 6 biomassa, C di 6 biomassa, D di 5 biomassa dan E di 1 biomassa.Kata kunci: bahan bakar, biomassa, higher heating value, nilai error, proksimat  Abstract – Biomass is a renewable energy that is very easy to find, environmentally friendly, and quite economical. The existence of biomass can be used as a substitute for fossil fuels, both oil, natural gas, and coal. Analyzes are needed as a basis for biomass as energy such as proximate and heat. The most critical analysis to assess biomass as fuel is the calorific value or higher heating value (HHV). HHV is experimentally measured using a bomb calorimeter, but this measurement is less effective because it requires time and high costs. Research on the prediction of HHV based on proximate analysis has been carried out so that it can simplify and save costs needed by researchers. In this paper, the evaluation of equations is discussed to predict HHV based on proximate analysis on biomass-based on data from previous studies. HHV prediction values using five equations were evaluated with 25 proximate biomass data from previous studies, then compared based on error value to get the best predictions. The analysis shows that Equation A predicts best in 7 biomass, B in 6 biomass, C in 6 biomass, D in 5 biomass, and E in 1 biomass. Key words: fuel, biomass, higher heating value, error value, proximate 

OXYGEN BOMB CALORIMETER

1930 ◽  
Vol 3 (5) ◽  
pp. 464-472 ◽  
Author(s):  
Edgar Stansfield ◽  
John W. Sutherland
Keyword(s):  
Stainless Steel ◽  
Bomb Calorimeter ◽  
Oxygen Bomb ◽  
Simplified Method ◽  
Temperature Equilibrium

This paper describes a stainless steel Scholes bomb and the modification found necessary to reduce the time for temperature equilibrium, a new calorimeter equipment and a simplified method for correcting Beckmann thermometer readings. Notes on a vacuum cup calorimeter are also included.

scholarly journals Thermochemical Characterization of Rice Husk (Oryza Sativa Linn) for Power Generation

2020 ◽  
Vol 20 (2) ◽  
pp. 184
Author(s):  
Nikdalila Radenahmad ◽  
Md Sumon Reza ◽  
Muhammad S. Abu Bakar ◽  
Abul K. Azad
Keyword(s):  
Energy Source ◽  
Power Generation ◽  
Oryza Sativa ◽  
Moisture Content ◽  
Rice Husk ◽  
Biomass Gasification ◽  
Heating Value ◽  
A Value ◽  
Pellet Density

Rice husk is biomass that can be utilized as fuel for biomass gasification as a renewable energy source. In this paper, thermochemical methods were used to determine the higher heating values, moisture content, bulk density, pellet density, microstructure, and elemental composition of Thai Rice Husk (Oryza Sativa Linn). The heating energy was analyzed using a bomb calorimeter, which showed a higher heating value of 15.46 MJ/kg. Determination of pellet density through rice husk powder pelletization exhibited a value of 1.028 g/cm3, while moisture content was 5.017 wt%. The heating value and moisture content revealed good agreement with the literature values, indicating the potentiality of rice hush for energy generation. Scanning electron microscopy (SEM) showed that the raw rice husk and its ash have similar porosity types but different bulk structure.  Elemental analysis using energy dispersive X-ray (EDX) indicated that rice husk contains O, Si, C while O and C percentages were drastically decreased during combustion. The obtained heating value and moisture content proved that rice husk could be used as a bio-energy source in biomass gasification for power generation.

scholarly journals Effect of Equivalence Ratio on the Rice Husk Gasification Performance Using Updraft Gasifier with Air Suction Mode

2020 ◽  
Vol 9 (1) ◽  
pp. 30-35
Author(s):  
Hendriyana Hendriyana
Keyword(s):  
Rice Husk ◽  
Equivalence Ratio ◽  
Volumetric Flow Rate ◽  
Unit Weight ◽  
Producer Gas ◽  
Heating Value ◽  
Cold Gas Efficiency ◽  
Gas Heating ◽  
Gas Efficiency ◽  
Cold Gas

Rice husk is the waste from agriculture industries that has high potential to produce heat and electricity through the gasification process. Air suction mode is new development for updraft rice husk gasification, where blower are placed at output of gasifier. The objective of this research is to examine these new configuration at several equivalence ratio. The equivalence ratio was varied at 32% and 49% to study temperature profile on gasifier, producer gas volumetric flow rate, composition of producer gas, producer gas heating value, cold gas efficiency and carbon conversion. The time needed to consume rice husk and reach an oxidation temperature of more than 700oC for equivalence ratio of 49% is shorter than 32%. Producer gas rate production per unit weight of rice husk increase from  2.03 Nm3/kg and 2.36 Nm3/kg for equivalence ratio of 32% and 49%, respectively. Composition producer gas for equivalence ratio of 32% is 17.67% CO, 15.39% CO2, 2.87% CH4, 10.62% H2 and 53.45% N2 and 49% is 19.46% CO, 5.94% CO2, 0.90% CH4, 3.46% H2 and 70.24% N2. Producer gas heating value for equivalence ratio 32% and 49% is 4.73 MJ/Nm3 and 3.27 MJ/Nm3, respectively. Cold gas efficiency of the gasifier at equivalence ratio 32% is 69% and at 49% is 55%.

scholarly journals INFLUENCE OF FAST PYROLYSIS WITH TEMPERATURE ON GAS, CHAR AND BIO-OIL PRODUCTION

2017 ◽  
Vol 26 (26) ◽  
pp. 1-11
Author(s):  
Marcos Antônio KLUNK ◽  
Sudipta DASGUPTA ◽  
Mohuli DAS
Keyword(s):  
Rice Husk ◽  
Fast Pyrolysis ◽  
Oil Production ◽  
High Heat ◽  
Alternative Source ◽  
Heating Value ◽  
High Heat Transfer ◽  
Bio Oil ◽  
Influence Of Temperature On ◽  
Increasing Temperature

Rice husk is among the products that stand out in use, and it is used as an alternative source of energy. The use of rice husk as biomass in the feeding of pyrolytic reactors for power generation and chemical products can reduce the environmental problem destination of this waste. The advantages of this process are in the proper disposal of this waste and energy generation. Fast pyrolysis of the rice husk was carried out in temperatures of 400-600°C. This work aims to evaluate the influence of temperature on yield and product composition of the gas, bio-oil, and char. The yield of bio-oil proved to be efficient (62 wt.% at 450°C) due to the high heat transfer and mass, as well as the residence time in the reactor. In addition, bio-oil production decreases slightly due to increased gas yield (1 to 15 wt.%) as the temperature increases in the range of 400-600°C, with the composition being severely affected, i.e., The concentration of CO increases and that of CO2 decreases. In addition, a slight increase in the concentration of CH4 and C2-C4 hydrocarbons occurs with increasing temperature. The yield of char at 400°C and 600°C was 41.14-34.77 wt.%, respectively, corresponding to a decrease of 16 wt.%. The char obtained is of low heating value but has good features for the production of active carbons and amorphous silica. These results demonstrate the efficiency and optimization of the fast pyrolysis of rice husk, in order to obtain biooil and char.

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