Marcin Jarosław Jewiarz

Marcin Jarosław Jewiarz
University of Agriculture in Krakow | UR · Department of Mechanical Engineering and Agrophysics

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49
Publications
12,369
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485
Citations
Citations since 2017
46 Research Items
485 Citations
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2017201820192020202120222023020406080100120140
2017201820192020202120222023020406080100120140

Publications

Publications (49)
Article
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The relevance of the study is confirmed by the rapid development of automation in agriculture, in particular, horticulture; the lack of methodological developments to assess the effectiveness of the introduction of robotic technologies; and the need to expand the functionality of mobile robots. The purpose of the study was to increase the level of...
Article
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The gasification rate of fuel, biomass gasification in particular, is an important parameter which is worth considering in the process of creating a gasifier with a continuous operation process. The gasification of biomass is a complex thermochemical process. The theoretical and practical studies of the gasification rate of biomass are complicated...
Article
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The combustion of waste biomass is becoming a key challenge for the energy sector, especially in times of growing energy demand and increasing environmental awareness of society. Processing such fuels is usually demanding. Mathematical modeling makes it possible to adapt the course of the process. The best option is to use appropriate fuel mixtures...
Article
Full-text available
Biogas production is an important component of sustainable energy management. In addition to energy-rich biogas, this process also generates solid waste in the form of digestate. The management of this stream has been problematic for many years. One promising method of utilizing this fraction seems to be incineration under controlled conditions. Th...
Article
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Georgian forests are very valuable natural resources, but due to the lack of affordable alternatives to firewood, people are forced to use forest resources illegally and unsustainably. The aim of this study was to determine the productivity and biomass properties of four poplar clones from Aigeiros and Tacamahaca and one control clone, considering...
Article
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Miscanthus is resistant to dry, frosty winters in Poland and most European Union countries. Miscanthus gives higher yields compared to native species. Farmers can produce Miscanthus pellets after drying it for their own heating purposes. From the third year, the most efficient plant development begins, resulting in a yield of 25-30 tons of dry matt...
Article
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The paper presents the results of research aimed at evaluating the possibility of using selected tree leaf species to produce solid biofuels. The possibility of production of qualitative solid biofuels from urban tree leaves meets the expectations of the municipal sector. Collection of tree leaves in urban areas is very often necessary for road saf...
Article
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The aim of the paper was to summarize and discuss current research trends in biomass thermal treatment (torrefaction process). Quantitative analyses were carried out, in which the main countries, research units and scientists were indicated. The analysis showed a clear upward trend in number of publications after 2010. Most scientists on selected t...
Article
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The process of biomass compaction depends on many factors, related to material and process. One of the most important is the proper fragmentation of the raw material. In most cases, more fragmented raw material makes it easier to achieve the desired quality parameters of pellets or briquettes. While the chipping of biomass prefers moist materials,...
Article
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For biomass compaction, it is important to determine all aspects of the process that will affect the quality of pellets and briquettes. The low bulk density of biomass leads to many problems in transportation and storage, necessitating the use of a compaction process to ensure a solid density of at least 1000 kg·m−3 and bulk density of at least 600...
Article
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Increasing production of waste has compelled the development of modern technologies for waste management. Certain fractions of municipal solid wastes are not suitable for recycling and must be utilised in other ways. Materials such as refuse-derived fuel (RDF) fractions are used as fuel in cement or CHP (combined heat and power) plants. The low bul...
Article
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Modern decision support systems have many applications, including assistance in scheduling tasks. Biosystems engineering combines engineering sciences and physical sciences in order to understand and improve biological systems in agriculture, food production, environment, etc. The work reviews the decision support systems in the aspect of schedulin...
Chapter
Full-text available
The study aimed at determining applicability of permanent pasture (meadow) vegetation for energy purposes. The possibility of using mowed, air-dried and collected biomass as solid fuel was considered. Botanical composition of the sward and the yield size were determined on the studied area. For individual species found in the sward, analysis of che...
Article
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The aim of this study was to determine selected energy parameters, leachability of heavy metals and phytotoxicity of biomass ash for different types of plant biomass (wheat straw, miscanthus straw, bark and sawdust) and poultry manure, as well as biochars produced from them. Based on data from proximate and ultimate analysis of the investigated mat...
Article
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Methods that use robust optimization are aimed at finding robustness to decision uncertainty. Uncertainty may affect the input parameters (problem) and the final solution. Robust optimization is applicable in many areas, such as: operational research, IT, energy, production engineering and others. The aim of the work was to indicate the main method...
Article
This study aimed to determine the productivity and energy values of 10 poplar cultivars for use as potential fuel sources in Poland. The study was conducted over a seven-year cycle in northern Poland. The cultivars belonged to clones traditionally used for timber production, as well as new clones specific to short-rotation coppice (SRC) practices....
Chapter
Full-text available
The authors of this study aimed at evaluating the influence of plant biomass added to sewage sludge on the product energy potential. In order to improve its physical properties, sewage sludge was mixed with wheat straw, sawdust, and bark of conifers. Materials with a natural water content were mixed at 1:1 weight ratio on a dry matter basis. The sc...
Article
The paper presents the results of research work aimed at determining process parameters for production of quality briquettes from Miscanthus raw material. Raw material was obtained from southern Ukraine from the autumn harvest. The obtained results clearly indicate that adequate grinding, humidity reduction of less than 15% and application of agglo...
Article
The paper presents research aimed to determine the potential of waste biomass from the processing of mustard. Raw material for research came from the central part of Ukraine. Studies have shown that mustard residues are a valuable raw material for the production of solid biofuels in the form of briquettes or pellets. Values of quality parameters (s...
Article
Full-text available
The paper presents the results of research aimed at determining the influence of the composition of the fertilizer mixtures and the compaction pressure on the specific density and density index of fertilizer granules. Investigated mixtures were prepared from fly ash from power plant fuelled by biomass and digestate from biogas plant. The urea, sulf...
Article
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Paper presents a concept of the mobile line for the production of granulated fertilizer from digestates and ash mixtures. The main assumption of the designed line is its mobility which allows line work in the place of production of digestate. The premise for developing such model of line was the fact that the transport of highly hydrated digestate,...
Article
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Paper presents design process of the prototype line, dedicated for production of fertilizer pellets from digestate-ash mixture. For enrichment of the nutritional characteristics of the final product additives were also used, like urea, elemental sulphur or phosphorite, and special fungal strains from Trichoderma spieces. During this process raw mat...
Book
Full-text available
The tutorial consists of two interrelated parts. The first of them gives an idea of modern structural materials and their main properties, and the second one contains information necessary for the practical manufacture of parts and assembly operations. Part One "Materials Science", consists of 8 sections: Section 1. "Structure, properties and metho...
Article
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KEYWORDS ABSTRACT renewable energy sources, marketing strategies, electric, biological fuel Recently, unconventional and renewable energy sources have become one of the most important criteria of energy security in the world. in the past, unclaimed ways of getting energy are actual now. Efficient energy conservation can not be imagined without the...
Chapter
Full-text available
Recently, unconventional and renewable energy sources have become one of the most importantncriteria of energy security in the world. in the past, unclaimed ways of getting energy are actual now. Efficient energy conservation can not be imagined without the use of alternative energy sources. the use of renewable energy significantly improves the se...
Article
Full-text available
Technology of processing of agricultural raw material and production residues from agri-food industry often requires their dewatering. Digestate is one of such materials i.e. the mass remaining after the bio-gasification process, which has great hydration (above 85%). The objective of the research was to know the impact of dewatering on the change...
Article
Full-text available
The paper presents the results of research, the objective of which was to determine the impact of particle size distribution and density of digestates and ash on density and tensile strength of granular fertilizer obtained from mixtures of these substrates. Particle size distribution, absolute density, envelope density and porosity of substrates we...
Article
Paper presents the results of work carried out by the project “Development of the methods for pretreatment of agricultural biomass used for production of energy” supported by the national program Innovative Economy. The research includes the analysis of several factors related to utilization of straw for energy purposes. The main points of interest...

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Projects (3)
Project
Dear Colleagues, Recently, research on biofuel production processes from biomass raw materials has become very popular in many scientific centres. As a results of the conducted research, the parameters of a wide range of raw materials and the influence of biomass parameters and process conditions on the final product properties are known, and new technologies are being developed. However, many questions and uncertainties remain. This is due to the diversity of raw material origin, the variety of final products (solid, liquid, and gaseous biofuels), and the multitude of technologies used. Once a greater understanding is obtained in these areas, it will be possible to fully utilize the biomass potential and effectively conduct production processes to obtain high-quality biofuels with minimal effort. This Special Issue will focus on: biomass pretreatment as well as biofuels process production and optimization with respect to process costs while maintaining high product quality. We therefore invite papers on biomass pretreatment technology, innovative biofuels production technology, modelling and optimization studies, reviews, and case studies. Topics of interest for publication include, but are not limited to, the following: Technical, economic, and environmental aspects of solid, liquid, and gaseous biofuels production; Optimization of biofuels production processes; Impact of raw material processing on product parameters; Ensuring high-quality biofuels; Technology assessment; Processes modelling, forecasting, and optimization techniques. Details at: https://www.mdpi.com/journal/energies/special_issues/Biomass_Pretreatment_Optimisation