Design, construction and evaluation of a fiber extracting machine from Calotropis (milkweed) stems

Tarabi, Nazilla; Mousazadeh, Hossein; Jafari, Ali; Taghizadeh-Tameh, Jalil

doi:10.1016/j.eaef.2014.11.001

Cited by 4 publications

(4 citation statements)

References 18 publications

(16 reference statements)

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“…It may be seen from the figure that initially increased and then decreased with increasing roller speed (550–920 rpm), gap (2–4 mm), and pitch of the blade (0.5–2.5 mm). A similar pattern of initial increase followed by a decline in efficiency with increasing roller speed has been reported for calotropis fibers (Tarabi et al, 2015). With respect to gap and pitch, the behavior of the curve may be attributed to a similar variation in the yield.…”

Section: Resultssupporting

confidence: 80%

“…All the parameters including independent, interaction, and quadratic, except for the interaction AB and the quadratic term B 2 were found to have significant effect on energy consumption. According to reported studies (Oreko et al, 2018;Tarabi et al, 2015), energy consumption increases with rotational speed, which is evident in our results also. The effect of independent parameters on the energy consumption of the multiple fiber extractor is shown in Figure 3e,f.…”

Section: Energy Consumptionsupporting

confidence: 89%

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Design consideration and optimization of process parameters in fiber extraction unit via modelling studies

Vishnu

Harikrishnan

Warrier

et al. 2023

J Food Process Engineering

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Demand for natural fibers as an alternative to synthetic fibers is on the rise. Constraints of current fiber extraction units are limited to single raw material and has low energy efficiency. Hence, this study was taken up for the design and development of a multiple fiber extractor, modelling and optimization of the machine operating parameters, and economic analysis of the developed prototype. The designed machine operates based on the raspador principle. Box Behnken design (BBD) and artificial neural network (ANN) were used to evaluate the performance and optimize the variables of the designed multiple fiber extractor. The input variables included roller speed (550, 735, and 920 rpm), gap/clearance of the roller (2, 3, and 4 mm) and the pitch/distance between the spline slots (0.5, 1.5, and 2.5 mm), while the output variables were yield (kg), capacity (kg/h), energy consumption (kJ), and efficiency (%).The prediction accuracy of quadratic models (R 2 = 0.962-0.985) developed in BBD were better than the ANN models (R 2 = 0.831-0.946). The optimized combination was found to be 714.23 rpm roller speed, 3.12 mm gap, and 1.49 mm pitch of the blade, which yielded (1.48 kg) a desirability value of 0.95. The XRD results indicated the highest crystallinity index was recorded for Pineapple leaf fiber compared to banana fiber. SEM results revealed that extracted BF having typical network structure (cellulose, hemicellulose, lignin, and waxes) compared to smooth PLF (lignin and hemicellulose). The fibers extracted using the developed machine was utilized for making biodegradable cutlery. Practical ApplicationsThis study was taken up to design a multifiber extractor, to extract fibers from agricultural residues after their useful parts are taken for consumption or processing.Thus, a single machine capable of handling multiple byproducts can utilize those residues, which were previously discarded as waste. Moreover, the extracted fibers are used for the manufacture of biodegradable cutlery. With a small investment, this machine can provide an additional income to the farmers, along with taking away the concern regarding waste disposal.

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Section: Resultssupporting

confidence: 80%

Section: Energy Consumptionsupporting

confidence: 89%

Design consideration and optimization of process parameters in fiber extraction unit via modelling studies

Vishnu

Harikrishnan

Warrier

et al. 2023

J Food Process Engineering

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“…Calotropis stem has valuable fibers with various applications in the industry. Since extraction found to be more complex, extraction machine with the capacity of 2 kg/h based on dried mass of barks and fibers was developed [6]. Calotropis gigentea fruit fiber reinforced composites was prepared and mechanically tested.…”

Section: Introductionmentioning

confidence: 99%

Influence of surface treatments in natural fibre reinforced composites

Aruna

Sultan

Shehhi

2020

IJM

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There have been numerous endeavors to replace synthetic fibers with natural fibers in fiber-reinforced composites, due to increasing environmental alertness and diminution of oil assets. The information that natural fibers are existing inexpensively and in plenty, being biodegradable and low density, have driven many scientists throughout the world to reconnoiter their application potential in several industrial segments. Nevertheless, natural fibers also require some confines such as high moisture absorption and subsequent swelling and degradation, poor chemical and fire resistance, high dispersion of mechanical properties, poor interfacial interactions with polymeric matrices. Consequently, there is an enormous concern to modify the surface of natural fibers through many techniques, in order to overcome their intrinsic downsides and to effectively utilize these materials in different applications. The chemical treatment of fiber is intended at improving the adhesion between the fiber surface and the matrix. Modification in fiber surface results with increase in fiber strength. This study compares the result of different types of surface treatments of natural fibrous materials, chiefly Calotropis procera and Sisal fibers, on the mechanical properties of fiber composites. The application of surface treatments on fibrous materials can improve the compatibility with composite materials.

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“…Besides, there is still a very import part of the plant can be used widely, that is, calotropis gigantea fiber. Fibers can be obtained from the seeds or stems of the plant [12][13][14][15]. This paper only focuses on seed fibers.…”

Section: Introductionmentioning

confidence: 99%

Evaluation on a Promising Natural Cellulose Fiber- Calotropis Gigantea Fiber

Cheng

et al. 2018

TTEFT

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Calotropis gigantea fiber is a kind of natural cellulose fiber that regains increasing attention nowadays, thus it is evaluated here aiming to replace cotton or kapok fibers to some extent. New discoveries are found about its morphological structure, indicating that it has sharper, closed tip and coarser, open end, and that it usually has 4-6 grooves along its longitudinal axis, with fully distributed microvillus on its surface. The FTIR spectrum shows the fiber mainly contain cellulose, lignin and hemi-cellulose component. X-ray diffraction analysis shows that the fiber has higher crystallinity in comparison with kapok fiber. In term of breaking strength, the fiber is obvious lower than cotton fiber and a little higher than kapok fiber. Furthermore, the fiber has good water absorbing and releasing capability, implying it has excellent water transmissivity.

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Design, construction and evaluation of a fiber extracting machine from Calotropis (milkweed) stems

Cited by 4 publications

References 18 publications

Design consideration and optimization of process parameters in fiber extraction unit via modelling studies

Design consideration and optimization of process parameters in fiber extraction unit via modelling studies

Influence of surface treatments in natural fibre reinforced composites

Evaluation on a Promising Natural Cellulose Fiber- Calotropis Gigantea Fiber

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