“…Usually these plants operate 270 working days per year. Technical and economical data were elaborated from previous works and from experience in actual fish freezing plants (Crupkin et al, 1996;Giannini, Parin, Gadaleta, Carrizo, & Zugarramurdi, 2001;Montaner, Gadaleta, Parin, & Zugarramurdi, 1995;Zugarramurdi & Parin, 1988;Zugarramurdi, Parin, Gadaleta, Carrizo, & Lupin, 2004;Zugarramurdi, Parin, Gadaleta, & Lupin, 2000).…”