Dynamic simulation based method for the reduction of complexity in design and control of Recirculating Aquaculture Systems

Abstract

Dynamic simulationModel controller Direct Computer Mapping A B S T R A C TIn this work we introduce the ''Extensible Fish-tank Volume Model" that can reduce the complexity in the design and control of the Recirculating Aquaculture Systems. In the developed model we adjust the volume of a single fish-tank to the prescribed values of stocking density, by controlling the necessary volume in each time step. Having developed an advantageous feeding, water exchange and oxygen supply strategy, as well as considering a compromise scheduling for the fingerling input and product fish output, we divide the volume vs. time function into equidistant parts and calculate the average volumes for these parts. Comparing these average values with the volumes of available tanks, we can plan the appropriate grades. The elaborated method is a good example for a case, where computational modeling is used to simulate a ''fictitious process model" that cannot be feasibly realized in the practice, but can simplify and accelerate the design and planning of real world processes by reducing the complexity.

Finding the optimal opening time of harvesting farmed fishery resources

“…Establishment of appropriate management policies of farmed aquatic organisms from economic viewpoints has been an urgent issue for current fishery sectors, which would depend on type and purpose of each aquaculture [7,12,13,17,19]. One of the most crucial issues in operating aquacultures is to decide the optimal opening time of harvesting the farmed fishery resources after which they are harvested and sold; however, the opening time has empirically been determined in the conventional aquacultures.…”

Modeling of mass transfer processes during dehydration of air-dried fish

“…Для моделирования динамики распределения воды в объекте обработки необходимо иметь значения коэффициентов потенциалопроводности массопереноса [13,14]. Значения этих коэффициентов зависят от содержания воды в рыбе и энергии связи воды с тканями рыбы [15][16][17][18][19][20].…”