My FINAL PROJECT "Smart cold room"

Project Background



My idea of final project is to design ,fabricate and code the control monitoring system of COLD rooms In addition this coldroom will composed with software part and hardware part for the aim of creating artificial environment in order to conserve the perishable food.

Problem statement

In recent years, various United Nations reports have stressed the growing constraint of food supply for Earth's growing human population. most of fruits and other perishable food ,



Project Sketch

Project users

THE User of the project will be fermer and seller By preventing post-harvest losses in food systems, we can increase the availability of food worldwide without requiring additional resources or placing additional burden on the environment. Food losses happen at every stage of the supply chain, as commodities become damaged, spoiled or lost while harvested, handled, processed, stored and transported. To over come this we I decided to develop smart cold room


project development

system sizing

  1. DESIGN
  2. THERMAL STUDY
  3. INTERFACE AND COMUNICTIION
  4. ASSEMBLY OF WHOLE PROJECT COMPONENTS

1.3D MODEL OF PROJECT

the design of my project is composed with two parts which is 3d design and eletronics even software design of interface

3D DESIGN OF MY PROJECT

I USED SOLIDWORKS SOFTWARE TO DESIGN WHOLES OF MY COLDROOM WITH ACTUAL DIMENSIONS , BELLOW A FLOW OF PROCESS OF DESIGNING JOURNEY IS ENDICATED

COLD ROOM HOUSING

ALUMINIUM CONNER BAR FOR support

HERE i decide to use solidworks feature called weld mate in order to use standard size of coner bar wich is alll ready exist on the market

coolling unit cover

Interesting ,I used SOLIDWORKS SHEET METAL FOR DESING THE SHEET COVER WHICH WILL HOLDS FUNS AND PELTIA PLATE AND HEAT SINKS

Heat sink

the model of heat sink is designed based on the raal product form second hand markets. I decided to to design heat sink to ensure the dimensions and disposition of heat sink to assembled with heat sinks in the cold rooom.

Full ASSEMBLY Project (3D FINAL MODEL)

I tried capture all view of the model in order to callify more detail

Manufacturing process of model of project

after design of full medel of the project export part by part as dxf for those which will be manufactured by substructive manufacturing process on CNC mchine. below there dxf file in vcarve pro software.

FINAL HOUSING MANUFACTED ON CNC OF COLDROOM

cooler manufacturing process on laser cuter.

laser cutter helps me in cutting small componets with high precision. bellow the attached photo shows dxf of cooller cover and its printing on laser cutter


2.ELETRONIC DESIGN OF MY PROJECT

I USED TO DESIGN THE MY ELETRONIC PART OF MY PROJECT BY USING KICARD SOFT WARE THE PHOTO BELLOW IS MY SCHEMATIC DIAGRAM 3D VIEW OF PROJECT PCB

Specifiction of all components used in eletronic circuit

Eletronic production of project pcb

THERMAL STUDY

The first step is to check the feasibility, and advantage, of having . We therefore need to calculate the heat power involved in the process. There are different sources which give information about peltier devices and support the necessary calculation. I first surfed through a very well made blog on the subject

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AFTER DOING THERMAL SMULATION THE OBSERVATION SHOWS THAT POLYSTERENE INSULATOR WILL PERFORM WELL AT 0.6 DEVIATION IN TEMPERATURE as shown bellow figure

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Heat load coalcultion and selstion of peltier (thermal eletric cooler )

with the aid of a company that provides a tool online to get a rough estimation of the heat energy that has to be extracted from cooler and freezer in a stade stade operation. here you can find link 

thermal eletric cooler discription for coolling and heating load calculation


design specification of my coldroom

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Here there is result obtained after cooling calculator

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after and cooling load the recomandation of cooler plate(peltier)

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From here i got an idea of how my system will be designed even the capacity of my cold room .below you can see how four cold plate (peltier) are mounted on my structure as recomanded by thermal eletric cooler manufacture .

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interface and communication

DASH BOARD OF MY PROJECT

Confguration of dash board

4. TESTING AND ASSEMBLING OF PROJECT

I DESIGN MY STRUCTURE AS KIT below you can find the figure which show the detail of mya design.

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