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Minimiziranje stroškov pri nabavi gorivZabukovec, Igor ; Selan, B. ; Urbančič, A.Podjetja v Sloveniji napovedujejo porabo plina za naslednje leto enkrat lento ob podpisu pogodbe z dobaviteljem. Napoved mora vsebovati predvidene mesečne količine plina. Cena plina je sestavljena iz ... fiksnega (transportni stroški) in variabilnega dela (dejanska poraba). Variabilni del je odisen še od faktorjev, ki penalizirajo višjo ali nižjo porabo od napovedane. Predstavljeno je podjetje papirne industrije z lastno proizvodnjo toplote in električne energije. Stroške za njegovo oskrbo z gorivi je mogoče zmanjšati z delno nadomestitvijo plina s srednjim kurilnim oljem. Optimiranli smo oskrbo tega podjetja z gorivi in iskali mesečne količine plina, ki pridejo v poštev pri sklepanju letne pogodbe. Na naravo tega optimizacijskega problema najbolj vplivajo transportni strški. So stopničaste funkcije, odvisne od dinamike porabe. Problem smo za obravnavano podjetje modelirali in reševali kot zaporedje manjšega števila linearnih programov. Vzorčni primer izračuna in analiza občutljivosti predstavljata izhodišče za nadaljnje delo in osnove za razširitev modela za kompleksnejši energetski sistem ali drugačne karakteristike dinamike odjema.Source: Zbornik del SOR '93 (Str. 135-141)Type of material - conference contributionPublish date - 1993Language - slovenianCOBISS.SI-ID - 70067712
Author
Zabukovec, Igor |
Selan, B. |
Urbančič, A.
Topics
energetika |
toplotna energija |
gorivo |
transport |
stroški |
linearno programiranje
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Zabukovec, Igor | 12639 |
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