COSTA, Eduardo Fernando Sobral da.; MIALHE, Luiz Geraldo.; GUEDES, Wallace Benedito.; SIMÕES NETO, Djalma Euzébio.
Résumé:
In the hilly lands of the Northeast Brazil, comprising
the south of Pernambuco State and the north of Alagoas State regions the transport in field has been done by animais through oangalhas* and zorras**.
The first studies aiming the meohanization in those are
as was necessary to gather information on flux of transport - FT
of traditional methods in order to allow oomparisions and studies of options for inoreasing its effioienoy.
Through analyses of the events whioh oaracterize the ope
rational oyoles of "oangalha" and "zorra" was ellaboreted a equation expressing FT in function of:
Dc - lenght of route with loaded equipment3 in m
Dv - lenght of route with unloaded equipment, in m
Qc - flux of loading in kg/s
Qd - flux of unloading, in gk/s
Vc - displaoing speed, loaded, in m/s
Vv - displaoing speed, unloaded3 in m/s
C - transported load, in kg.
Six sugar rrtills whioh have tipioal conditions for using
"oangalhas" and "zorras" were selected. In eaoh mill was oonsidered seven differents sets (equipment + animal + operator). For eaoh set was reoorded data of 4 oyoles ( replica tions) related
to Do, Dv, Qo, Vo, Vv and C.
The three methods shown a FT potenoially alike, varying from 0,04 to 0,54 t.km/h aooording the levei of TF, whioh depends on the value taken in aooount.
