Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Sortuj według:

Ogranicz wyniki do:

Energy aspect of vertical integration in agriculture

Bilan Y., Nitsenko V., Havrysh V.

Rynek Energii

2017

Nr 5

98--110

The paper investigates the state of energy aspects of agricultural integrated companies. The study proved that the integration in the agricultural and industrial complex should be viewed more broadly including bioenergy production. The scheme of relationships within vertical integration has been developed. The comparative efficiency of vertically integrated and non-integrated companies has been examined. Farms and agro-food processing facility strive to reduce energy dependence. On the basis of researches, a new scientific definition has been suggested: an agro-energy company or the agro-energy vertical. For the agro-energy company, the ways of vertical and horizontal integration building have been considered. The authors' vision of the feasibility of alternative fuel production has been presented. Efficiency of biogas production and its utilization (including by-product) has been calculated. It has been proved that the use of by-products increases the profitability of biofuel production.

Artykuł bada aspekty energetyczne rolniczych przedsiębiorstw zintegrowanych. Badania dowodzą, że integracja w zespołach rolniczo-przemysłowych powinna być postrzegana szerzej włącznie z produkcją bioenergii. Opracowano wykres relacji w ramach integracji wertykalnej. W badaniach porównano wydajność wertykalnie zintegrowanych i niezintegrowanych przedsiębiorstw. Gospodarstwa rolne i przedsiębiorstwa rolno-spożywcze starają się zredukować zależność energetyczną. Na postawie badań, zaproponowano nową, naukową definicję: przedsiębiorstwo agroenergetyczne lub agroenergetyczny pion. Dla przedsiębiorstwo agroenergetycznego rozważano sposoby integracji wertykalnej i horyzontalnej. Zaprezentowano autorską wizję wykonalności produkcji alternatywnych paliw. Wydajność produkcji biogazu i jego wykorzystanie (również jako produkt uboczny) została wyliczona. Dowiedziono, że użycie produktów ubocznych zwiększa zyskowność produkcji biopaliwa.

Evaluation of biogas production and usage potential

Kalinichenko A., Havrysh V., Perebyynis V.

Ecological Chemistry and Engineering. S

2016

Vol. 23, nr 3

387--400

The aim of the research is the development of theoretical and methodical bases for determining the feasibility of plant raw materials growing for its further bioconversion into energy resources and technological materials to maximize profit from business activities. Monograph, statistics, modelling and abstract logical methods have been used during the research. Directions of biogas usage have been examined. Biogas yields from different crops have been analyzed. It has been determined that high methane yields can be provided from root crops, grain crops, and several green forage plants. So, forage beet and maize can provide more than 5,500 m3 of biogas per hectare. Attention is paid to the use of by-products of biogas plants, especially carbon dioxide. Carbon dioxide is an important commodity and can increase profitability of biogas plant operating. It can be used for different purposes (food industry, chemical industry, medicine, fumigation, etc). The most important parameters of the biogas upgrading technologies have been analyzed. If output of an upgrade module is more than 500 nm3/h, investment costs of different available technologies are almost equal. According to experts, it is economically feasible to use anaerobic digestion biogas systems to upgrade biomethane provided their performance is equivalent to 3,000 litres of diesel fuel per day. The economic and mathematical models have been suggested to determine the feasibility of growing plant materials to maximize the gross profit. The target function is the maximum gross income from biogas utilization. It has the following limitations: annual production of biogas, consumption of electricity, heat and motor fuels. The mathematical model takes into account both meeting own requirement and selling surplus energy resources and co-products including carbon dioxide. In case of diesel fuel substitution, an ignition dose of diesel fuels has been considered. The algorithm for making a decision on construction of a biogas plant has been offered.