Influence on off-gassing during storage of Scots pine wood pellets produced from sawdust with different extractive contents

Siwale, Workson; Frodeson, Stefan; Berghel, Jonas; Henriksson, Gunnar; Finell, Michael; Arshadi, Mehrdad; Jonsson, Carina

doi:10.1016/j.biombioe.2021.106325

Cited by 17 publications

(14 citation statements)

References 20 publications

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“…Solar cookers are being touted as options in kitchens in African rural homes, which will go a long way to improve health and well-being (SDG 3), when they replace the stoves being fuelled by charcoal and wood. That makes one think of a Zimbabwe powered totally by hydropower and solar energy, sometime in the distant future, while availing of bio-wastes to fulfil a significant part of the demand for heat energy (Siwale et al, 2022).…”

Section: Past To Present To the Desired Futurea Very Brief Literature...mentioning

confidence: 99%

A Small Beautiful Example of Sustainability in the Heart of Zimbabwe

Govindarajan

2022

seb

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Zimbabwe has diligently started pursuing the Sustainable Development Goals (SDGs) defined by the United Nations in 2015. While making progress and being aware of it, will be a shot in the arm, with success breeding more success, the journey may seem daunting at times. However, the journey – sustainable development towards the targets set - is what matters more than the final destination, as philosophers and savants often remind us. This article, while dwelling on sustainable development in this southern-African landlocked country in general, presents a beautiful example of a collaborative venture, undertaken by dedicated and determined international partners, and predicated on SDG#4 (Quality Education) and SDG#5 (Gender Equality), and harnessing the complementarities and synergies with the other SDGs, which set root during the COVID-pandemic, in Mwenezi in southern Zimbabwe. The pandemic while being a scourge, tended to have some silver linings to it, as it gave birth to many collaborations and made human beings realise that one’s own happiness is dependent to a very great extent on that of others. This venture emphasizes girls’ education and skills-development, which open the doors, synergistically, to sustained growth, development and progress. Education, indisputably, is a key component of the freedom necessary to live a life of value. To quote Nelson Mandela, ‘It is the most powerful weapon which you can use to change the world.”

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Section: Past To Present To the Desired Futurea Very Brief Literature...mentioning

confidence: 99%

A Small Beautiful Example of Sustainability in the Heart of Zimbabwe

Govindarajan

2022

seb

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“…It is assumed that biomass constitutes an alternative source of energy that, after processing to achieve specific physical and chemical characteristics, may replace fossil fuels to a significant degree. An important strategic goal of the Member States of the European Union has been to systematically increase the use of biomass in energy generation [4][5][6]. The primary issue associated with agricultural straw is the relatively low density of the material, which is problematic from the standpoint of its transportation and storage [7].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on the Cutting Process of Single Triticale Straws

et al. 2023

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This paper presents experimental research on cutting a single stalk of triticale straw for the production of biofuel in the process of its compaction using the piston technique. In the first stage of the experimental study of cutting single triticale straws, the variable parameters were the moisture contents of the stem equal to 10% and 40%, the offset between the blade and the counter-blade g, and the linear velocity of the knife blade V. The blade angle and rake angle were equal to α = 0° and β = 0°. In the second stage, the variables, including the blade angle values α = 0°, 15°, 30°, and 45° and the rake angle values β = 5°, 15°, and 30°, were introduced. Taking into account the analysis of the distribution of forces on the knife edge leading to the determination of the force quotients Fc″/Fc and Fw/Fc, and on the basis of the optimization performed and the adopted optimization criteria, the optimal knife edge angle α can be determined (at values g = 0.1 mm and V = 8 mm/s) at α ≅ 0° and the angle of attack β within the range of 5–26°. What the value will be in this range depends on the value of the weight adopted in the optimization. The choice of their values may be decided by the constructor of the cutting device.

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“…19 These residues can be used as a raw material in pyrolysis processes to produce a suitable biochar as a reinforcing charge, since Pinus has as its main characteristics the high volatile content (about 75% m/m), the low ash content (.10 -1.00% m/m) and the high calorific value (4460 kcal.kg À1 ). 20 The aim of this work is to verify the effects of the residence time of Pinus spp. in the pyrolysis process in the production of a biochar with reinforcing effect for NR elastomeric compounds.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of residence time in the reactor on the reinforcement of biochar in rubber compounds

Ribeiro,

Godinho,

Brandalise

2023

Journal of Elastomers & Plastics

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In the present work, the effect of residence time on the production of biochar by the pyrolysis process of Pinus spp. was investigated. Biochar was produced at three different residence times in the reactor (30, 60, and 240 min). The effect of residence time on the load in the pyrolysis process was evaluated based on the rheometric, physical and mechanical properties of the elastomeric compounds. The shortest residence time, 30 min, produced a biochar with a graphitic structure (turbostratic) that was ideal for the interaction between load and elastomer and caused the least possible disturbance to the crystallization process by stretching the natural rubber, which was observed from the tensile strength, while maintaining the mechanical properties. As the residence time increased, it was observed that the more crystalline structure interfered with the crystallization process of the natural rubber when stretched, causing a decrease in tensile strength and decreasing the interaction between the load- elastomer, thus increasing the vulcanization time of the rubber. The compound was prepared using the filler with the longest residence time (NR/BIO240min).

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Influence on off-gassing during storage of Scots pine wood pellets produced from sawdust with different extractive contents

Cited by 17 publications

References 20 publications

A Small Beautiful Example of Sustainability in the Heart of Zimbabwe

A Small Beautiful Example of Sustainability in the Heart of Zimbabwe

Experimental Study on the Cutting Process of Single Triticale Straws

Effect of residence time in the reactor on the reinforcement of biochar in rubber compounds

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