Noisebridge - User contributions [en]

Prototype proposal

2012-05-22T04:47:16Z

61.72.187.2: /* List of components and materials */

===Experimental Incubator (ei) - Project Proposal 20/5/2012===

'''Abstract'''

Experimental incubator is a device designated to control it’s internal conditions. The prototype is going to allow for a temperature regulation both at constant level and more importantly for controlled temperature oscillation. Another factor included is monitoring of it’s electricity consumption. The temperature is a crucial factor in food&beverage fermentations therefore device which is optimized for these purposes is needed. The novelty temperature oscillation function allows to optimize the growing conditions for cultures comprised from multiple microorganisms with wide range of temperature optimas. Next generations will be more sophisticated aiming for measurement and control of CO2, oxygen levels, stirring, humidity etc. The device will be build to comply with principles of low energy consumption, easy to repair and upgradeable structures, sturdiness in accordance with concept of environmentally friendliness. This project is based on an open source aiming to bring this tool to as many brewers and fermenters being as affordable as possible.

Key Words: experimental incubator; temperature regulation; temperature oscillation; measurement of electricity consumption; upgradable; environmentally friendly; open source; brewing; fermentations.

==== '''First prototype of ei. presented at Maker Fair 2-3/6/2012''' ====

* Functions

- temperature monitoring

- temperature control - setting up a constant level and allowing for controlled temperature oscillations

- electricity power consumption

===== '''The design''' =====

The incubator will consist of two separable parts,

* '''the box''' - respective incubator chamber composed from three layers - outer protective, middle insulational and internal protective and insulated doors

* '''central unit''' - arduino clone based microcontroller with display and manual control, peltier heating and cooling element with adjacent heat sinks and ventilation system

====== '''The Box Construction''' ======

'''Dimensions and materials'''

* External Protective Layer

dimensions - cube: a= 610-710 mm; thickness = 7-13 mm

material - [http://en.wikipedia.org/wiki/Medium-density_fibreboard MDF board]

cost - $30-40

* Middle Insulation Layer

dimensions - thickness a = 50-70 mm

material - [http://www.energysavers.gov/your_home/insulation_airsealing/index.cfm/mytopic=11600 polyurethane foam] or [http://en.wikipedia.org/wiki/R-value_%28insulation%29#Example_values extruded expanded polystyrene (XPS) high density]

cost - $20 - 30

* Internal Protective Layer

dimensions - cube - a=500 mm; material thickness = 5-10 mm

material - [http://en.wikipedia.org/wiki/High-density_polyethylene high-density polyethylene (HDPE) sheets] or [http://en.wikipedia.org/wiki/Polyvinyl_chloride polyvinyl chloride (PVC) sheets].

cost - $50-60

* Additional materials for the box construction

silicon or glue - cost = $2-4

brackets (to connect the MDF boards) - cost = $3-5

doors - door hinge - cost = $2-3; door bolt (magnetic) - cost = $5-6

ventilation duct - cost = $???

brackets for the ventilation duct - cost = ???

====== '''The Central Unit Construction''' ======

This is a part which is not clearly designed and any help is highly appreciated!

'''Dimensions and materials'''

* External Protective Layer

dimensions - cuboid: a= 400 mm; b = 400 mm; c = 300 mm; layer thickness = 7-13 mm

material - [http://en.wikipedia.org/wiki/Medium-density_fibreboard MDF board]

cost - $15-20

* Internal layer

There is probably no need to have additional internal insulation layer because of the ventilation system requirements. Or should be the internal cooling and heating unit with the fan system insulated??? If so how and how much???

* Electronic components

microcontroller: [http://www.google.com/url?q=http%3A%2F%2Fwww.atmel.com%2FImages%2F7593S.pdf&sa=D&sntz=1&usg=AFQjCNEXejfPb9-DEaMdejkK_IJwiVU7Bg ATMEL 90USB1286-AU]; power requirements - ??? W; cost = donated; otherwise = ???

display: [http://en.wikipedia.org/wiki/Liquid_crystal_display LCD display]; power requirements - ??? W; cost = $10-15

manual control - numeric keyboard ???; power requirements - ???; cost = $???

temperature sensor: thermistor - type ???; power requirements; cost - $1-2

combined heating and cooling unit: [http://www.ebay.com/itm/12V-60W-TEC1-12706-Thermoelectric-Cooler-Peltier-Module-/230665309463?pt=LH_DefaultDomain_0&hash=item35b4b94d17 peltier module (12 V 60 W)]; power requirements - 60 W; cost = $10-20

heatsink: aluminum alloy or copper based; dimensions - cooling smaller (3x4cm), heating bigger (7x10cm), details ???; cost = $10-15 (hot) and $5-10 (cold)

fans: 2 x 60 mm; power requirements - up to 2-4 W; cost = $2-3 (price and power consumption per each fan)

power source: 120-150 W; cost = $10-15

another electronic components:breadboard; relays; resistors; diodes etc. cost = $15-30

====== List of components and materials ======

{| class="wikitable"
|-
! Component/material!! Quantity !! Final price in US$
|-
| MDF board (1220x2440mm) || 2 || 30-40
|-
| insulation foam || 1 || 20-30
|-
| PVC or HDPE || || 50-60
|-
| silicon || 1 || 2-4
|-
| glue || 1 || 2-4
|-
| brackets (for MDF boards)|| || 3-5
|-
| ventilation duct|| ||
|-
| brackets (for ventilation)|| ||
|-
| ATMEL 90USB1286-AU microcontroller || 1 ||
|-
| LCD display|| 1 || 10-15
|-
| thermistors || || 1-2
|-
| peltier module (30-60 W) || 1 ||
|-
| heatsink (smaller 3-4 cm) || 1 || 5-10
|-
| heatsink (large 7-10 cm) || 1 || 10-15
|-
| fan (60 mm) || 2 || 2-3
|-
| insulation layer (between heatsinks)|| 1 ||
|-
|}

* Things to discuss concerning the design of the control unit and it's heating/cooling system controlled by microcontroller.

How to “close up” the ventilation duct to the chamber so the insulation is complete???

How to “switch” the warm or cold air circulation to the incubator and out???

* NOTES

Materials, literature and Interesting links

Peltier element

commercial cooler hacking - this is a video from Dave Jones where he is checking closely and hacking commercial version of peltier based incubator for reptile eggs

http://www.youtube.com/watch?v=AI0Q6-h3EGU

cooler kit test- short youtube video about how to test a cooling kit ordered from ebay based on peltier device, heatsink and fan

http://www.youtube.com/watch?v=Y-noP1nthdE

Links to tools for sharing and collaboration

Pirate Pad http://piratepad.ca/

Prototype proposal

2012-05-22T04:35:35Z

61.72.187.2:

===Experimental Incubator (ei) - Project Proposal 20/5/2012===

'''Abstract'''

Experimental incubator is a device designated to control it’s internal conditions. The prototype is going to allow for a temperature regulation both at constant level and more importantly for controlled temperature oscillation. Another factor included is monitoring of it’s electricity consumption. The temperature is a crucial factor in food&beverage fermentations therefore device which is optimized for these purposes is needed. The novelty temperature oscillation function allows to optimize the growing conditions for cultures comprised from multiple microorganisms with wide range of temperature optimas. Next generations will be more sophisticated aiming for measurement and control of CO2, oxygen levels, stirring, humidity etc. The device will be build to comply with principles of low energy consumption, easy to repair and upgradeable structures, sturdiness in accordance with concept of environmentally friendliness. This project is based on an open source aiming to bring this tool to as many brewers and fermenters being as affordable as possible.

Key Words: experimental incubator; temperature regulation; temperature oscillation; measurement of electricity consumption; upgradable; environmentally friendly; open source; brewing; fermentations.

==== '''First prototype of ei. presented at Maker Fair 2-3/6/2012''' ====

* Functions

- temperature monitoring

- temperature control - setting up a constant level and allowing for controlled temperature oscillations

- electricity power consumption

===== '''The design''' =====

The incubator will consist of two separable parts,

* '''the box''' - respective incubator chamber composed from three layers - outer protective, middle insulational and internal protective and insulated doors

* '''central unit''' - arduino clone based microcontroller with display and manual control, peltier heating and cooling element with adjacent heat sinks and ventilation system

====== '''The Box Construction''' ======

'''Dimensions and materials'''

* External Protective Layer

dimensions - cube: a= 610-710 mm; thickness = 7-13 mm

material - [http://en.wikipedia.org/wiki/Medium-density_fibreboard MDF board]

cost - $30-40

* Middle Insulation Layer

dimensions - thickness a = 50-70 mm

material - [http://www.energysavers.gov/your_home/insulation_airsealing/index.cfm/mytopic=11600 polyurethane foam] or [http://en.wikipedia.org/wiki/R-value_%28insulation%29#Example_values extruded expanded polystyrene (XPS) high density]

cost - $20 - 30

* Internal Protective Layer

dimensions - cube - a=500 mm; material thickness = 5-10 mm

material - [http://en.wikipedia.org/wiki/High-density_polyethylene high-density polyethylene (HDPE) sheets] or [http://en.wikipedia.org/wiki/Polyvinyl_chloride polyvinyl chloride (PVC) sheets].

cost - $50-60

* Additional materials for the box construction

silicon or glue - cost = $2-4

brackets (to connect the MDF boards) - cost = $3-5

doors - door hinge - cost = $2-3; door bolt (magnetic) - cost = $5-6

ventilation duct - cost = $???

brackets for the ventilation duct - cost = ???

====== '''The Central Unit Construction''' ======

This is a part which is not clearly designed and any help is highly appreciated!

'''Dimensions and materials'''

* External Protective Layer

dimensions - cuboid: a= 400 mm; b = 400 mm; c = 300 mm; layer thickness = 7-13 mm

material - [http://en.wikipedia.org/wiki/Medium-density_fibreboard MDF board]

cost - $15-20

* Internal layer

There is probably no need to have additional internal insulation layer because of the ventilation system requirements. Or should be the internal cooling and heating unit with the fan system insulated??? If so how and how much???

* Electronic components

microcontroller: [http://www.google.com/url?q=http%3A%2F%2Fwww.atmel.com%2FImages%2F7593S.pdf&sa=D&sntz=1&usg=AFQjCNEXejfPb9-DEaMdejkK_IJwiVU7Bg ATMEL 90USB1286-AU]; power requirements - ??? W; cost = donated; otherwise = ???

display: [http://en.wikipedia.org/wiki/Liquid_crystal_display LCD display]; power requirements - ??? W; cost = $10-15

manual control - numeric keyboard ???; power requirements - ???; cost = $???

temperature sensor: thermistor - type ???; power requirements; cost - $1-2

combined heating and cooling unit: [http://www.ebay.com/itm/12V-60W-TEC1-12706-Thermoelectric-Cooler-Peltier-Module-/230665309463?pt=LH_DefaultDomain_0&hash=item35b4b94d17 peltier module (12 V 60 W)]; power requirements - 60 W; cost = $10-20

heatsink: aluminum alloy or copper based; dimensions - cooling smaller (3x4cm), heating bigger (7x10cm), details ???; cost = $10-15 (hot) and $5-10 (cold)

fans: 2 x 60 mm; power requirements - up to 2-4 W; cost = $2-3 (price and power consumption per each fan)

power source: 120-150 W; cost = $10-15

another electronic components:breadboard; relays; resistors; diodes etc. cost = $15-30

====== List of components and materials ======

{| class="wikitable"
|-
! Component/material!! Quantity !! Final price in US$
|-
| MDF board (1220x2440mm) || 2 || 30-40
|-
| Insulation phone || 1 || 20-30
|-
| PVC or HDPE || || 50-60
|}

* Things to discuss concerning the design of the control unit and it's heating/cooling system controlled by microcontroller.

How to “close up” the ventilation duct to the chamber so the insulation is complete???

How to “switch” the warm or cold air circulation to the incubator and out???

* NOTES

Materials, literature and Interesting links

Peltier element

commercial cooler hacking - this is a video from Dave Jones where he is checking closely and hacking commercial version of peltier based incubator for reptile eggs

http://www.youtube.com/watch?v=AI0Q6-h3EGU

cooler kit test- short youtube video about how to test a cooling kit ordered from ebay based on peltier device, heatsink and fan

http://www.youtube.com/watch?v=Y-noP1nthdE

Links to tools for sharing and collaboration

Pirate Pad http://piratepad.ca/