Design and energy efficient management of major refrigeration systems

V magistrskem delu je bil raziskan in opisan osnovni ter napredni hladilniški sistem za specifičen primer. Osnovni hladilniški sistem je bil predstavljen kot referenčno izhodišče, nato pa je bila pozornost na razvoju naprednejše rešitve. V delu je bilo podrobno analizirano in primerjano delovanje obeh sistemov. Napredni hladilniški sistem je vključeval inovativne komponente in pristop k doseganju boljšega izkoristka energije ter večjo učinkovitost sistema kot celote. Posebna pozornost je bila namenjena senzorju debeline ledu, ki je bil vgrajen v napredni sistem. Ta senzor je omogočil natančno spremljanje debeline ledu na površinah uparjalnika. S tem je bil sistem prilagojen glede na dejansko debelino ledu, kar je pripomoglo k boljšemu delovanju sistema in manjši porabi energije. Z izvedbo primerjalnih izračunov je bilo dokazano, da napredni hladilniški sistemi omogočajo znatne prihranke pri porabi električne energije v primerjavi z osnovnim sistemom. Ti prihranki so bili rezultat boljše regulacije, optimizirane uporabe komponent in prilagajanja delovanja hladilniškega sistema glede na dejanske razmere.In the master thesis, a basic and an advanced refrigeration system for a specific case was investigated and described. The basic refrigeration system was presented as a reference starting point and then the focus was on the development of a more advanced solution. The performance of both systems was analysed and compared in detail. The advanced refrigeration system included innovative components and an approach to achieve better energy efficiency and higher performance of the system as a whole. Particular attention was paid to the defrost sensor that was integrated in the advanced system. This sensor allowed the ice thickness on the evaporator surfaces to be monitored accurately. This allowed the system to be adjusted to the actual defrost sensor, which contributed to better system performance and lower energy consumption. By carrying out comparative calculations, it was shown that the advanced refrigeration systems offer significant savings in electricity consumption compared to the baseline system. These savings were the result of better control, optimised use of components and adjusting the operation of the refrigeration system to the actual conditions