Bivalplus

1. Monitoring information

This part of the project has as final aim to make easier the variable study that can affect the cockleshell breed. It consists in calculate the water temperature and some weather parameters (temperatura, speed and wind direction, rainfall and dampness) in real time and from a distance. These parameters are stored in a data base server, so they are accessible from any part of the world to their treatment.

There are two parts clearly differents. The first one, information purchase and the second one, the information display in a web page in an easy and  understandable way.

The device used to handle the information reception of the sensors and send them to a data base is a Raspberry Pi.A RF module has been added to this device to can notify with the sensor by wifi. A Photo PCB has been added too to set up the recived signal from the thermal water probe.

The weather station located outside, test the temperatura, speed and wind direction, dampness and rainfall. To each  time interval, the station sends information to the receptor, that accumulates the information in a data base by using 3G technology.

The evolution of the measurement parameters can be observed in the web page www.bivalplus.com, once registered as new user, inside of where you can add a visualise option, by using a evolution graph of each parameter.

This system offers the followings characteristics:

Capacity of device remote control to realise assignments as:

  • To modify the time period to take information.
  • To add or modify an access route to a data base where the information is stored.
  • To analyze the quality of the information received from the weather station.
  • In case of wrong or poor information signal, have the opportunity of change them.
  • Have the chance of put again the information in any other place where it’s range.
  • Exportable to any other context of parameters monitorization.
  • Easy to increase with more sensors.
  • Low power consumption.
  • Low cost.

2. Hanging structure building

The floating structure placement in San Vicente harbour in O Grove, is a testing prototype, destined to pre-fatten clam and cockleshell. It’s about a preview fase to their sowing in the sand. The seed with a side of 500 µm is moved to this hanging structure, to continue growing in the sea.

The pre-fatten of clam and cockleshell seed, it’s realised in farming units (“tambores o artefactos”) hanging in the water column and fixed by their top side at the platform. The upper side is supported over the water surface thanks to a float. It should be pointed out that the pre-fatten of this small seeds need mechanisms to force the water circulation through the mesh that contain the clam in the lower side of these devices. The forced flow of the water favoured the oxygen movement and nutrients through the mesh, avoid the dirt pile and the epibiont grow.

This pre-fatten structure for the seeds is provided by renowable energy systems and also has new systems about integration between renowable energy and hydrogen. By the amount of this energetic systems based on renowable sources its reduced the comsumption and it’s obtained improvements since the economic point of view, energetic and sustainability pre-fatten process  of sea clams.

At the same time to the devices building, it’s was realised the design in CAD 3D of the hanging structure, by doing simulations and mechanical calculations, as well as FEA tests for the maximum deformations study, suffered by the structure under critical loads conditions. Once realised the building project it was prepared the material supply and it was buildt the prototype.

 

3. Prototype design of a aseptic semiautomatic canned machine for cokcleshell.

Until the momento of this project develop, the canning industry used the autoclave as the food sterilization system. In a autoclave it was removed the microorganism by the insertion of high temperature and pressure steam during a certain time and there are areas (caused by the cans distribution) where a excesive thermal load is applied. This can cause high products decreases because part of the constituent water is liberated and reach values almost of 30%.

At this project it was developed a experimental prototype of semiautomatic aseptic canned machine for cockleshell that have a sterilization tank by temperature of 11 liters and a equivalent of cooling to avoid loses of product quality, a cabin of laminar flow with a HEPA H14 filter ( above 99.95% MMPS efficaty according to EN 1822), a mechanism supplier-sterilizator of cans, a cockleshell feeding hopper and a can closer device.  All of them are interconnected between them with AISI 316 steel. In order to any moment the product and the environmet are in contact since it’s carried at the upper tank. This fact allows to avoid the riks of microorganism appearance in the final product.