Strawboard Log: Difference between revisions

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Start the log.
=Mon Feb 3, 2014=
 
Process: recruit feedback from mechanical engineering advisors as part of the process. Discuss ways of obtaining feedback - Facebook, ESW Facebook, professors, recruiting of stakeholders, etc.
 
Next:
*Biweekly meeting. Next: Research straw material. Sketchup rough drawing by next meeting - Feb 17 - post design to FB.
*Ask Dr. Stevens to be a technical reviewer
*How to edit wiki - [[Instructions]]
*See how to use documentation platform - [[Dozuki]]
*Start a log at [[Strawboard_Log]]
*Review
*ESW RIT - Facebook
*Team pictures
*'''Development Board''' - [http://opensourceecology.dozuki.com/c/Straw_Board_Machine?revisionid=HEAD]
 
 
==Strawboard Machine Requirements==
==Phase 1==
*Design is such that it can be modified readily to the continuous version
*Fed with chopped straw (1-2" pieces), manually though an elongated hopper
*Mold size for the heating/compression chamber is adjustable
*Piston creates pressure and feeds straw into chamber
*Piston foot size is adjustable to match heating/compression chamber aperture
*Heating elements are applied to flat plates in adjustable chamber
*Batch system - one end of the compression chamber
*Arduino temperature regulator controls temperature
*Temperature display shows temperature
*Pressure sensor shows pressure
*Uses [[Warehouse]] 4" square tubing for frame
*Length of frame is 8' long, but first prototype involves 4' length of heating area.
*Heating area is modular in 4' sections.
*Heating elements are insulated from the outside tom minimize heat loss
*Dual side heating
*1/2" plate is used to form the chamber
*Screw-down mechanism adjusts size of chamber
*Board prototype chamber is scalable in units of 4'
*2 hydraulic cylinders are used on the press foot
*Press foot is made from layered-up 1/2" steel
*Development Boards are used for each module
*We begin with Concept Design - Modules Definition - Interface Design, then all teams start working
*End side of strawboard machine is plugged to allow pressure buildup.
*Use a 4" cylinder - from [https://www.surpluscenter.com/Hydraulics/Hydraulic-Cylinders/Double-Acting-Hydraulic-Cylinders/]
*0-2000 psi - system pressure
*Power would be a Power Cube 27 hp gas engine - in the form of hydraulic flow
*0-14 gallons per minute
*Hydraulic Power Output from Power Cube feeds a hydraulic valve - [https://www.surpluscenter.com/Hydraulics/Hydraulic-Valves/Directional-Control-Valves/2-SPOOL-25-GPM-RD522EEAA5A4B1-OC-MOTOR-SPOOL-VALVE-9-6760.axd]
*Heating element takes heat up to 240F
 
 
Design goals -
 
==Phase 2==
*Addition of straw chopper for automatic chopping and feeding
*Continuous version - end side is opened for continuous throughput
*Pressure buildup is achieved by friction against compression chamber
*Chamber length is extended to build up pressure as needed, while retaining the same length of the heating chamber
 
==Google Drawing - Conceptual Design==
 
<html><img src="https://docs.google.com/drawings/d/1ZPnzGzNTnhVDGM9sPArcazU7ecMAasLIFGOjcQFtHh8/pub?w=566&amp;h=380"></html>
 
[https://docs.google.com/a/opensourceecology.org/drawings/d/1ZPnzGzNTnhVDGM9sPArcazU7ecMAasLIFGOjcQFtHh8/edit edit]
 


=Links=
=Links=


*[[ESW]]
*[[ESW]]

Revision as of 21:23, 7 March 2014

Mon Feb 3, 2014

Process: recruit feedback from mechanical engineering advisors as part of the process. Discuss ways of obtaining feedback - Facebook, ESW Facebook, professors, recruiting of stakeholders, etc.

Next:

  • Biweekly meeting. Next: Research straw material. Sketchup rough drawing by next meeting - Feb 17 - post design to FB.
  • Ask Dr. Stevens to be a technical reviewer
  • How to edit wiki - Instructions
  • See how to use documentation platform - Dozuki
  • Start a log at Strawboard_Log
  • Review
  • ESW RIT - Facebook
  • Team pictures
  • Development Board - [1]


Strawboard Machine Requirements

Phase 1

  • Design is such that it can be modified readily to the continuous version
  • Fed with chopped straw (1-2" pieces), manually though an elongated hopper
  • Mold size for the heating/compression chamber is adjustable
  • Piston creates pressure and feeds straw into chamber
  • Piston foot size is adjustable to match heating/compression chamber aperture
  • Heating elements are applied to flat plates in adjustable chamber
  • Batch system - one end of the compression chamber
  • Arduino temperature regulator controls temperature
  • Temperature display shows temperature
  • Pressure sensor shows pressure
  • Uses Warehouse 4" square tubing for frame
  • Length of frame is 8' long, but first prototype involves 4' length of heating area.
  • Heating area is modular in 4' sections.
  • Heating elements are insulated from the outside tom minimize heat loss
  • Dual side heating
  • 1/2" plate is used to form the chamber
  • Screw-down mechanism adjusts size of chamber
  • Board prototype chamber is scalable in units of 4'
  • 2 hydraulic cylinders are used on the press foot
  • Press foot is made from layered-up 1/2" steel
  • Development Boards are used for each module
  • We begin with Concept Design - Modules Definition - Interface Design, then all teams start working
  • End side of strawboard machine is plugged to allow pressure buildup.
  • Use a 4" cylinder - from [2]
  • 0-2000 psi - system pressure
  • Power would be a Power Cube 27 hp gas engine - in the form of hydraulic flow
  • 0-14 gallons per minute
  • Hydraulic Power Output from Power Cube feeds a hydraulic valve - [3]
  • Heating element takes heat up to 240F


Design goals -

Phase 2

  • Addition of straw chopper for automatic chopping and feeding
  • Continuous version - end side is opened for continuous throughput
  • Pressure buildup is achieved by friction against compression chamber
  • Chamber length is extended to build up pressure as needed, while retaining the same length of the heating chamber

Google Drawing - Conceptual Design

edit


Links

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