Micro-explosion and burning characteristics of a single droplet of pyrolytic oil from castor seeds

Chen, Guan Bang; Li, Yueh Heng; Lan, C. H.; Lin, Hsien Tsung; Chao, Yei Chin

doi:10.1016/j.applthermaleng.2016.12.052

Cited by 37 publications

(11 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The S5 sample was characterized by a higher carbon content (87.78 wt%) and lower hydrogen and oxygen content (9.88 and 0.31 wt%, respectively), which was also correlated with the data in [26]. This was likely due to the presence of a smaller amount of light hydrocarbons in the composition of this sample.…”

Section: Characteristics Of Liquid Hydrocarbons Obtained By Steam Gasification Of Used Automobile Tiressupporting

confidence: 81%

“…Seven stages of thermal transformation during bio-oil droplet combustion were identified into [25]. In particular, the stages of surface and bulk microbursts (stages 1 and 2, respectively), evaporation (stage 3), expansion in form of an additional microburst (stage 4) caused by the rapid increase in pressure inside the droplet [26], combustion (stage 5), smoldering (stage 6) and attenuation (stage 7) were identified. In [27][28], the appearance of microbursts during the combustion of liquid hydrocarbons is explained by the formation of a groups of small bubbles inside droplets.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Liquid Hydrocarbons Production by the Steam Gasification of Used Tires: Energy Characteristics and Environmental Sustainability

Ларионов¹,

Slyusarskiy²,

Kirgina³

et al. 2021

Preprint

View full text Add to dashboard Cite

The technical characteristics of liquid hydrocarbons obtained by steam gasification of the recycled automobile tires were studied as well as the features of their combustion process. Steam gasification of grinded tires was carried out in a tubular reactor using superheated steam with 500°C temperature and 5 kg/h mass flow rate. The obtained characteristics were compared with a traditional liquid fuel oil. The technical characteristics were determined via the standard analytical methods. An ignition and a combustion of liquid hydrocarbon samples were carried out in the combustion chamber at different temperatures of heating medium Tg = 450–700°C. Gas-phase combustion products were analyzed using a flow-through gas analyzer. It was found that liquid hydrocarbons were characterized by a low pour point (-43°C – (-52) °C) and comparable to calorific value of traditional fuel oil (40.56–43.3 MJ/kg). In addition, the studied samples of liquid hydrocarbons were characterized by a lower ignition delay time (by 56 %, on average) and flame burning time (by 30 %, on average). Combustion process of the studied samples (including traditional fuel oil) was accompanied by the formation of micro-explosions.

show abstract

Section: Characteristics Of Liquid Hydrocarbons Obtained By Steam Gasification Of Used Automobile Tiressupporting

confidence: 81%

Section: Introductionmentioning

confidence: 99%

Liquid Hydrocarbons Production by the Steam Gasification of Used Tires: Energy Characteristics and Environmental Sustainability

Ларионов¹,

Slyusarskiy²,

Kirgina³

et al. 2021

Preprint

View full text Add to dashboard Cite

show abstract

“…For further readings regarding this method, one can refer to the studies of Lu et al [24]. The burnout temperature (T b ) was estimated by the conversion method [24,25], where T b is defined as the temperature at which the conversion of the fuel reaches 99%.…”

Section: Combustion Characteristics Parametersmentioning

confidence: 99%

“…Knowing both T i and T b , two combustion characteristic parameters, namely, the combustion characteristics index (S) [25] and the flammability index (C) [26], were calculated. Typically, a fuel with a larger value of S and C has an improved combustion performance and combustion stability, respectively.…”

Section: Combustion Characteristics Parametersmentioning

confidence: 99%

A Study of Sewage Sludge Co-Combustion with Australian Black Coal and Shiitake Substrate

et al. 2018

Self Cite

View full text Add to dashboard Cite

Co-combustion technology can be a gateway to sewage sludge valorization and net CO2 reduction. In this study, combustion characteristics of sewage sludge, Australian black coal, shiitake substrate, and their blends were analyzed via thermogravimetric analysis (TGA) coupled with Fourier transform infrared spectroscopy. The ignition temperature, burnout temperature, flammability index (C), and combustion characteristics index (S) of the fuels and their respective blends were estimated. Kinetic parameters were also estimated using the Coats-Redfern method. The results showed that the oxidation of the blends had two distinct stages. Synergistic effects existed for all the blends, with negative ones occurring at temperatures between 300 and 500 °C and positive ones during the char oxidation period. In the first oxidation stage, both C and S indexes increased with sludge addition to the coal. However, they decreased with sludge addition in the final oxidation stage. The catalytic effect of the sludge and the shiitake was pronounced in the final oxidation stage and it resulted in a decrease of activation energy. As for the pollutant emissions, the results showed that NOx and SO2 emissions decreased for 25 wt.% sludge addition to the coal. For the sludge-shiitake blends, NOx and SO2 emissions decreased with increasing shiitake addition. The single-pellet combustion results showed that ignition delay time reduced with increasing sludge/coal ratio but increased with increasing sludge/shiitake ratio. The volatile combustion duration decreased with the addition of sludge and total combustion time decreased sharply with increasing sludge ratio.

show abstract

“…However, the suspension wire has a significant impact on the droplet if the droplet size is too small. In spite of the limitation, this technology is still applied in many researches of single droplet, including evaporation [14,[20][21][22], puffing [10,13,15], micro-explosion [23][24][25] and combustion [16-18, 23, 24, 26, 27]. In the present work, a thermocouple is used as the suspension wire because of its convenient and synchronous measurement of droplet temperature and images.…”

Section: Introductionmentioning

confidence: 99%

Effect of ambient temperature on the puffing characteristics of single butanol-hexadecane droplet

Zhang

Huang

et al. 2018

Energy

View full text Add to dashboard Cite

Puffing characteristics of BUT50 (50% n-butanol and 50% n-hexadecane by mass) were investigated using the droplet suspension technology under 638, 688 and 738 K. Experimental results showed that BUT50 underwent transient heating, fluctuation evaporation and equilibrium evaporation phases under all ambient temperatures. In the fluctuation evaporation phase, the fluctuation frequency of 738 K was higher than those of 638 and 688 K and the (D max /D 0) 2 of 738 K was lower than those of 638 and 688 K. Easy bubble rupture led to high fluctuation frequency and low (D max /D 0) 2 at 738 K. Three turning points could be found in the curve of transient temperature growth rate at 638 and 738 K. Four characteristic droplet temperatures were analyzed, including droplet temperatures at the start (T 1) and end (T 2) of transient heating phase, at (D max /D 0) 2 (T 3) and at the end of total lifetime (T 4). T 2 was slightly lower and T 3 was slightly higher than the boiling point of n-butanol. T 4 was lower than the boiling point of n-hexadecane. Furthermore, the transient heating duration (t TH), fluctuation evaporation duration (t FE) and total lifetime (t TL) decreased with increasing ambient temperature. The reduction of t FE played an important role in the decrease of t TL. The percentages of t TH /t TL and t FE /t TL were stable with increasing ambient temperature.

show abstract

Micro-explosion and burning characteristics of a single droplet of pyrolytic oil from castor seeds

Cited by 37 publications

References 30 publications

Liquid Hydrocarbons Production by the Steam Gasification of Used Tires: Energy Characteristics and Environmental Sustainability

Liquid Hydrocarbons Production by the Steam Gasification of Used Tires: Energy Characteristics and Environmental Sustainability

A Study of Sewage Sludge Co-Combustion with Australian Black Coal and Shiitake Substrate

Effect of ambient temperature on the puffing characteristics of single butanol-hexadecane droplet

Contact Info

Product

Resources

About