Energetic analysis in compost dairy barn: a case study in southeastern Brazil
Laen...
Kuupäev
2023
Kättesaadav alates
Autorid
Cruz, E.F.L.
Hernández, R.O.
Damasceno, F.A.
Tinôco, I.F.F.
Andrade, R.R.
do Nascimento, J.A.C.
Rossi, G.
Becciolini, V.
Barbari, M.
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Estonian University of Life Sciences
Abstrakt
Energy efficiency aims to optimize the energy consumption of the processes, activities,
and machinery of the farm, ensuring the comfort, handling, and safety of the animals. The purpose
of the study was to identify the energy consumption demanded by the activities performed at the
Compost Dairy Barn facility, located in Itaguara, Minas Gerais, Brazil and to propose energysaving alternatives, applying the Energy Audit Methodology described by the Institute for Energy
Diversification and Saving (IDAE in Spanish) from Spain. The energy assessment at the facility
allowed us to recognize unnecessary energy expenses in machinery uses, variations in milk
production in relation to environmental conditions, waste disposal, and to propose improvement
alternatives to reduce energy consumption expenses. Waste production data of 1577.7 kg per year
was obtained, which corresponds to the bedding and feeding areas, and 175 kg of waste for the
feeding area. Data on the temperature and humidity of the bedding area were collected to
determine which of the five months of research is the most demanding in terms of energy. To
maintain the animal’s welfare, tracing the times of substantial use of machinery (e.g., fans,
tractors) at the facility and calculating Equivalent Temperature Index (ETI) was necessary. The
highest percentage consumption of energy was represented by tractors in bedding maintenance
and supply, by around 95.03%. The energy analysis of the farm showed a reduction in energy
consumption of 45.03%, compared to the initial consumption percentages of the overall livestock
activity.
Kirjeldus
Received: February 2nd, 2023 ; Accepted: March 25th, 2023 ; Published: August 16th, 2023 ; Correspondence: erika.cruz@ufv.br, valentina.becciolini@unifi.it
Märksõnad
energy balance, energy consumption, livestock energy analysis, livestock sustainability, articles