Техніко-економічний аналіз проєктних рішень технологічного комплексу промислового виробництва ентомофагів

Abstract

The purpose. To determine link of economic and constructive characteristics of capital equipment for growing hexapods and to find out demands which minimize technological cost price of its manufacture. Methods. Theoretical studies are lead on known procedure of parametric technical-economical analysis. As basic approach to solution of optimization problem they selected determination of ranges of values of technical parameters which minimize cost price without evaluation, actually, their values. At development of mathematical models the conjecture is accepted that monetary expenditures for materials and wages for manufacture of certain device are considered directly proportional area of its envelopment or length of its ridges. Results. Technical-economical analysis of capital equipment for growing hexapods (cells and boxes) for the purpose of determination of their optimum squares for minimization of technological cost price of manufacture of the equipment is lead. Mathematical model of cost price of manufacture of the equipment as function of geometrical sizes of cell and box is developed. For minimization of the specified cost price independent parameters on which optimization is carried out are selected, namely: amount of cells in a box, effective area of one cell, gross area of a box. All other parameters are regulated by technical requirements and are considered set. Model study shows that inside the set range of squares the objective function has no extreme, as in the specified range its first derivative always negative (it is not equal to null). Therefore the extreme (minimum) is attained only on boundary of the set range of squares, that is at peak figures of squares of cell and box. Conclusions. Cost of equipment, which is evaluated through technological cost of its manufacture, will be minimum at the greatest possible values of squares of cell and box. Limitations of these values will depend on technical requirements: ergonomics, strength, etc. At increase of sizes of cell from 25x25 cm up to 25x50 cm the reduced expenditures on materials for manufacture drop on 6%, and on payment — on 25%. At increase of productivity on 62% technological cost price of complex is drops on 2%. Approaches justified in study essentially improve economic indicators of complex.