Use of energy-technological analysis for assessment of animal production
1990
Hutnik, E. (Akademia Rolnicza, Wroclaw (Poland). Inst. Budownictwa Rolniczego)
In the energy analysis of the food production system, information concerning energy outlays or energy gains can be expressed as one of three recording forms: rated energy, usable energy, and cumulative energy. Only the last mentioned form should be used in preparing energy balances. In converting rated energy into usable energy an empirical coefficient of rated energy utilization is used. This coefficient incorporates the converting efficiency of rated energy, its utilization degree, and a factor converting traditional units to SI units. In converting usable energy into cumulative energy an empirical coefficient is used, described as the technological valency of usable energy. This coefficient can be applied as a criterion of evaluating food production cumulative energy consumption. Both coefficients, of rated energy utilization and of technological valency of usable energy, depend on actual production conditions in the enterprise as well as on the index of technological production level. Before a common method of balancing energy consumption in food production is accepted, it seems necessary to present simultaneously data concerning the usable energy and the cumulative energy in SI units along with specified factors of conversion
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