Autor: Szczukowski, S. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Willow biomass as a feedstock for gasification
Autorzy:: Stolarski, M. J.
Krzyżaniak, M.
Szczukowski, S.
Tworkowski, J.
Powiązania:: https://bibliotekanauki.pl/articles/334066.pdf
Data publikacji:: 2013
Wydawca:: Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Maszyn Rolniczych
Tematy:: willow
biomass
gasification
gasifier
raw gas
mass and energy balances
Opis:: A study concerns the balance of mass and energy in the process of gasification of willow chips (acquired in 5-year rotation), as well as in the process of combustion of the gasification product with flue gas heat recovery. Thermochemical conversion of willow biomass resulted in the production of raw gas with the calorific value of 4937 kJ/kg. The product of gasification comprised a mixture of gaseous compounds, tars and water vapour. The gaseous compounds determined in the study included: hydrogen (8.30%), carbon monoxide (27.51%), methane (1.51%), carbon dioxide (3.79%), nitrogen (55.87%) and small amounts of hydrocarbons C1-C3. The ultimate production output of willow fuel was equal to 91.5 kg of chips per hour and the power output achieved 315 kW. Raw gas produced from willow biomass, mixed with air, was burnt at a temperature exceeding 1000oC and the flue gas heat was recovered in a water boiler and distributed in the central heating system. The collected thermal energy accounted for over 79% of the chemical energy of the biomass at the start of the process.
Źródło:: Journal of Research and Applications in Agricultural Engineering; 2013, 58, 1; 168-171
1642-686X
2719-423X
Pojawia się w:: Journal of Research and Applications in Agricultural Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: The energy efficiency of willow biomass production in Poland - a comparative study
Autorzy:: Szczukowski, S.
Tworkowski, J.
Stolarski, M.J.
Krzyzaniak, M.
Powiązania:: https://bibliotekanauki.pl/articles/11962.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:: Field experiments with willow (Salix L.) coppice cultivation and Eko-Salix systems have been conducted at the University of Warmia and Mazury since 1992. In that wider context, the aim of the work described here was to compare energy inputs involved in setting up a plantation and producing biomass, and to assess the efficiency of willow-chips production under the coppice and Eko-Salix systems. The energy gain determined in the experiments was several to more than twenty times as great as the inputs needed to operate the plantation and to harvest willow biomass, this leaving both systems of willow cultivation under study attractive where setting up short-rotation coppices is concerned.
Źródło:: Papers on Global Change; 2015, 22
2300-8121
1730-802X
Pojawia się w:: Papers on Global Change
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Thermophysical and chemical properties of biomass obtained from willow coppice cultivated in one- and three-year rotation cycles
Autorzy:: Krzyzaniak, M.
Stolarski, M.J.
Szczukowski, S.
Tworkowski, J.
Powiązania:: https://bibliotekanauki.pl/articles/14814.pdf
Data publikacji:: 2015
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Opis:: Most of the energy today is obtained from fossil fuels, which are becoming more expensive and less available. Energy from biomass produced on agricultural land is an alternative option. Energy crops should guarantee high yield and good quality parameters, associated with their use in energy production. This study analysed the thermophysical and chemical properties of biomass obtained from 15 new clones of willow selected in the Department of Plant Breeding and Seed Production of the University of Warmia and Mazury in Olsztyn. The plants were cultivated in one- and three-year rotation cycles, run in 2009-2011 at two research stations: in Bałdy and in Łężany. The energy content as well as elemental and physical properties of biomass were analysed. The higher heating value was better in biomass from one-year shoots (on average 19.66 MJ kg-1 d.m.). The highest value of this parameter was recorded for the clone of Salix acutifolia UWM 093 (20.04 MJ kg-1 d.m.). The higher heating value in biomass of three-year old clones was on average lower by 0.06 MJ kg-1 d.m. The lower heating value in biomass increased in longer willow coppice harvest cycles. The highest lower heating value was recorded for the clone UWM 035 of Salix pentandra (9.27 MJ kg-1) harvested in a three-year cycle, whereas the lowest one was achieved by the clone of Salix dasyclados UWM 155 (7.55 MJ kg-1) harvested in a one- -year cycle. The average moisture content in three-year shoots was 50.01% d.m., being higher by 2.31% in one-year shoots. The ash content was lower in biomass harvested in three-year rotation. In conclusion, willow biomass obtained in a three-year harvest cycle contains less of undesirable elements and proves to be better quality fuel than biomass obtained in a one-year harvest cycle.
Źródło:: Journal of Elementology; 2015, 20, 1
1644-2296
Pojawia się w:: Journal of Elementology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Changes of willow biomass quality as renewable energy feedstock harvested with biobaler
Autorzy:: Stolarski, M.J.
Krzyzaniak, M.
Szczukowski, S.
Tworkowski, J.
Grygutis, J.
Powiązania:: https://bibliotekanauki.pl/articles/14857.pdf
Data publikacji:: 2015
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:: biomass change
willow biomass
biomass quality
chemical composition
renewable energy
BioBaler harvesting system
Opis:: Willow biomass can be collected in the form of entire or chipped shoots. The method depends on the harvest cycle of the plants, availability of necessary machines and the expected use of harvested raw material. Methods of harvesting influence on biomass quality during its acquisition and further in the storage period. Therefore, the aim of the research was to characterize the harvest of willow plantation with the use of a biobaler WB 55 and to assess the quality of the obtained biomass during the 9-month period of its storage. Willow was harvested with biobaler WB 55 in January 2010 on a commercial plantation. The 3.5 ha plantation was situated in the north-east of Poland, in the village of Dorotowo (53°42′9.88″ N 20°25′11.02″ E). An analysis of the biomass quality in terms of its thermophysical and chemical properties was carried out at the laboratory of the Department of Plant Breeding and Seed Production of the UWM in Olsztyn. Willow harvesting with a unit consisting of a 129 kW tractor and biobaler WB 55 was conducted efficiently. The average harvesting efficiency was about 18 bales per hour of the unit operation (8.75 Mg h-1 FM). The fresh matter density in the bales averaged 358.10 kg m-3 FM, whereas in dry matter it was 166.16 kg m-3 DM. With extended duration of storage, the quality of willow biomass as an energy raw material improved. The biomass in the bales steadily lost its moisture, from 53.06% in January to 17.48% in September. On the other hand, the lower heating value increased during that same period from 7.75 MJ kg-1 to 15.65 MJ kg-1. It has been found based on the observations made during the study period that the advantages of a biobaler WB 55 are the easy and efficient harvesting of plants on a plantation and bales can be used for energy production as needed.
Źródło:: Journal of Elementology; 2015, 20, 3
1644-2296
Pojawia się w:: Journal of Elementology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Lignocellulosic biomass derived from agricultural land as industrial and energy feedstock
Dendromasa pozyskana z gruntów rolniczych jako surowiec przemysłowy i energetyczny
Autorzy:: Stolarski, M.J.
Krzyzaniak, M.
Waliszewska, B.
Szczukowski, S.
Tworkowski, J.
Zborowska, M.
Powiązania:: https://bibliotekanauki.pl/articles/52704.pdf
Data publikacji:: 2013
Wydawca:: Sieć Badawcza Łukasiewicz - Instytut Technologii Drewna
Opis:: Lignocellulosic biomass is a natural, renewable and highly versatile resource.In recent years, woody biomass produced in short rotation coppices has become increasingly popular. Hence, this research was undertaken to assess the thermophysical and chemical properties of willow, poplar and black locust stems in relation to a soil fertilization regime. The experiment was set up in the village of Samławki in north-eastern Poland (53°59’ N, 21°04’ E), on soil considered sub-standard for the traditional agricultural production of food or fodder crops. The black locust biomass was characterised by the lowest moisture content combined with the greatest lower heating value and ash content. The poplar plant had the highest carbon and hydrogen content and the greatest higher heating value, although due to its high moisture content, it had the poorest lower heating value. The willow biomass was characterised by the highest content of cellulose and holocellulose. Mycorrhiza improved the cellulose content as well as the lignin and holocellulose content in the wood of the black locust. In the case of the willow wood, the applicationof lignin to the soil was the only measure that reduced the content of the ligninin the lignocellulosic biomass.
Dendromasa to naturalny, odnawialny surowiec o szerokim i wszechstronnym zastosowaniu. W ostatnich latach wzrasta zainteresowanie biomasą drzewną pozyskiwanąw krótkich rotacjach zbioru z upraw polowych. Dlatego też podjęto badania oceny termofizycznych i chemicznych właściwości dwuletnich pędów wierzby, topoli oraz robinii akacjowej w zależności od sposobu nawożenia gleby. Doświadczenie zlokalizowane było w północno-wschodniej Polsce w miejscowości Samławki (53°59’ N, 21°04’ E) na glebie mało przydatnej do tradycyjnej produkcji rolniczej pod uprawy konsumpcyjne czy paszowe. Biomasa robinii charakteryzowała się najniższą wilgotnością oraz najwyższą wartością opałową i zawartością popiołu, natomiast topola – najwyższą zawartością węglai wodoru i najwyższym ciepłem spalania; jednakże ze względu na maksymalną wilgotność posiadała najniższą wartość opałową. Najwięcej celulozy oraz holocelulozy miała biomasa wierzby. Najkorzystniejsze zmiany w zawartości celulozy, ligniny i holocelulozy w drewnie robinii miało zastosowanie mikoryzy. W przypadku drewna wierzbowego, jedynie zastosowanie ligniny do nawożenia obniżyło w niewielkim stopniu zawartość ligninyw pozyskanej dendromasie.
Źródło:: Drewno. Prace Naukowe. Doniesienia. Komunikaty; 2013, 56, 189
1644-3985
Pojawia się w:: Drewno. Prace Naukowe. Doniesienia. Komunikaty
Dostawca treści:: Biblioteka Nauki

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