In order to be able to reduce energy consumption of feed factories, several parameters mustbe known (registered if possible or estimated when missing). These parameters can be used tocalculate the net Specific Mechanical Energy (SME) and Specific Thermal Energy (STE). Datawere provided by A, B and C. The analyses made in this project focused on the net SME of theexpander or BOA, of the press, of the process (expander/BOA+press) andon the STE of theconditioner. Based on these analyses, possible reduction of energy consumption were estimated.When considering SME and STE values per production line and/or per type of feed the mostoften produced in the factories, it was observed that:•Net SME values are mainly between 10 to 20 kWh/t. This corresponds to theexpectedvalues when producing pigs feed while this is quite high compared to the literature datafor poultry feed.•Opportunities exist to reduce energy consumption. For example, optimization of the ca-pacity values, of the meal temperature or of the use of the machine can help to reduce theSME and STE.•In the analyses conducted with the available data, the potential energyreduction by takingoff the most consuming runs was different within the factories. For example, when deletingup to 10% of the most consuming runs on a thermal or mechanical point of view,STEwas more efficiently saved than SME at A: up to 18% of thermal energy could be savedcompared to maximum 13 % of mechanical energy saved. This was the oppositeat B(15% of thermal energy saved vs. 21% of mechanical energy saved). At C, up to 12% ofmechanical energy could be saved when deleting 10% of the most consuming runs on amechanical point of view. Saving of thermal energy could not be estimated because of thewide spread of the values.It was therefore concluded that they are some opportunities to reducethe energy consumption.It was also concluding that by taking of a small part of the most consuming runs, an importantpart of energy use (up to 20 %) could be saved.
|Number of pages||31|
|Publication status||Published - 27 Nov 2013|