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| Mantoam, Edemilson J; Mekonnen, Mesfin M; Romanelli, Thiago Libório. |
| The intensification of agricultural production systems demand power, supplied by agricultural machinery, besides more agricultural inputs such as fertilizer, pesticides and seeds. Agricultural mechanization provided increase in the global production of food, fiber and bioenergy; and it brought economic benefits to producers, but causing larger energy consumption. Energy embodiment in agricultural machinery has been approached, but data usually are from car industry. This study aimed to determine the energy demand in a plant that assembles five types of agricultural machinery from a multinational manufacturer located in Piracicaba municipality in Sao Paulo state, Brazil. That plant assembles two types of sugarcane harvester, coffee harvesters, sprayers and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agricultural engineering mechanization; Industrial process; Life cycle assessment; Energy balance; Sustainability. |
| Ano: 2018 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4831 |
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| Santos, Otávio Neto Almeida; Folegatti, Marcos Vinícius; Lena, Bruno Patias; Diotto, Adriano Valentim; Francisco, João Paulo; Romanelli, Thiago Libório. |
| Jatropha (Jatropha curcas L.) is an oil seed species, adaptive to different climate and soil conditions. It is known due to its high-oil-content seed, being an option for biodiesel production and presenting competitive yields under irrigated condition. This study was developed in an experimental area located in a humid subtropical region of Brazil and the objective was to evaluate Jatropha’s energy balance under irrigation and rainfed condition during the first four years of its cycle. First, the material flows were determined, which supported the calculation of, energy input and output flows were obtained. These were used to determine the energy indices: energy balance (EB), and energy return on investment (EROI) for both conditions. Fertilizers had the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biofuel; Energy efficiency; Sustainability; Energy flow. |
| Ano: 2018 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4597 |
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