The purpose of the paper is to define the energy efficiency and environmental sustainability of bioenergy value chain for heat production from chips of Miscanthus x giganteus in Ukraine. The methodology of Life Cycle Assessment (LCA) was used, according to which, the scope of the product system includes the feedstock cycle of Miscanthus x giganteus cultivation and harvest, and the subsystem of Miscanthus chips conversion to heat in a 500 kW biomass boiler.<\/p>\n
Cumulative energy demand and energy yield coefficient were chosen as energy efficiency indicators. The product system was compared with the similar one using natural gas. Non-renewable energy yield coefficient was used to define how many times the energy output was bigger than input of non-renewable energy. An acceptable value for renewable energy installations and systems is to receive twice as much energy output as was spent of non-renewable energy, however the recommended value assumed in the work is to receive a 5 times more energy output compared to non-renewable energy input.<\/p>\n
As an environmental sustainability indicator, a reduction of GHG emissions was used. The acceptable level of GHG emissions reduction was chosen at a level of 60% for the whole life cycle from cultivation-to-heat, compared to traditional heat production in gas boilers.<\/p>\n
Results of the assessment identified that the most significant parameter affecting energy efficiency and environmental sustainability is transportation distance. The growing of Miscanthus x giganteus in Ukraine for the subsequent production of biofuel in the form of chips and its combustion in biofuel boilers is environmentally sustainable with a maximum transportation distance of 750 km and energy efficient with a maximum transportation distance of 400 km.<\/p>\n
Life cycle assessment of heat production from chips of Miscanthus x giganteus in Ukraine. Tryboi O.V. Journal “\u0411\u0456\u043e\u0435\u043d\u0435\u0440\u0433\u0435\u0442\u0438\u043a\u0430\/Bioenergy”, 2018, \u21162 (12), p. 22-27<\/a> (in Ukrainian)<\/address>\n","protected":false},"excerpt":{"rendered":"The purpose of the paper is to define the energy efficiency and environmental sustainability of bioenergy value chain for heat production from chips of Miscanthus x giganteus in Ukraine. The methodology of Life Cycle Assessment (LCA) was used, according to which, the scope of the product system includes the feedstock cycle of Miscanthus x giganteus […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[21],"tags":[],"class_list":["post-5800","post","type-post","status-publish","format-standard","hentry","category-articles"],"views":114,"_links":{"self":[{"href":"https:\/\/uabio.org\/en\/wp-json\/wp\/v2\/posts\/5800","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/uabio.org\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/uabio.org\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/uabio.org\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/uabio.org\/en\/wp-json\/wp\/v2\/comments?post=5800"}],"version-history":[{"count":0,"href":"https:\/\/uabio.org\/en\/wp-json\/wp\/v2\/posts\/5800\/revisions"}],"wp:attachment":[{"href":"https:\/\/uabio.org\/en\/wp-json\/wp\/v2\/media?parent=5800"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/uabio.org\/en\/wp-json\/wp\/v2\/categories?post=5800"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/uabio.org\/en\/wp-json\/wp\/v2\/tags?post=5800"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}