Quality Function Deployment (QFD)

1. Identify the customers: Who are they? CTI, Haiti women, Haitian children, General Mills, University of St. Thomas, Committee on Development.

2. Determine the customers’ requirements: What do the customers want? A simple and effective system for dehydration of the abundant supply of Haitian breadfruit. The dryer must be cost effective, easily and safely operated by Haitian women, robust, and must dry breadfruit at a sufficiently rapid pace. Modes of drying may include solar energy or desiccant-based drying. 3. Determine relative importance of the requirements: Who versus what? The Haitian women would be most concerned with safe and simple operation since they will be personally operating the system. CTI and COD would be more concerned with the robustness of the design as well as the simplicity of the system since they are principal investors. Both parties would be concerned with the drying time. St. Thomas’ priorities would reflect a combination of the needs of other parties. 4. Identify and evaluate the competition: How satisfied is the customer now? Being as this is a unique project, there is no direct competition for this project, however current methods used in Haiti are not meeting many of the needs of the stakeholders. Systems of the past have been slow and inefficient. Currently, the customers do not have a sufficient solution to the breadfruit drying problem. 5. Generate engineering specifications: How will the customers’ requirements be met? Cost – final production cost of the unit must be 150 USD or less. Easily operable by one person – highest tray or control location at 5 feet or less. Fully loaded trays of non-dried product shall weigh no more than 20 pounds. At least one tray dimension must be no larger than 3 feet. The other dimension may vary to increase the surface area of the tray. There shall be areas on the tray that are no thicker than 2 inches to allow for comfortable gripping of the tray. Safety – The unit shall remain upright and undamaged in winds of up to 15 mph, loaded or unloaded. Robustness – The unit shall remain upright and undamaged in winds up to 15 mph, loaded or unloaded. Drying Time – The dryer shall reduce the moisture of a load of breadfruit from 70% to 10-13% in less than 6 hours of good weather. The temperature inside the drying unit must be in the range of 100 to 150 degrees Fahrenheit. 6. Relate customers’ requirements to engineering specifications: How to measure what? Cost will ultimately be evaluated by material prices in Haiti. Product dimensions relating to easy operation will be measured by a tape measure and/or a scale.

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Safety and robustness will be tested and addressed once a working prototype is produced. Drying time will be evaluated using a stop watch and a moisture meter. The temperature of the drying unit will be monitored by a thermometer. 7. Set engineering targets: How much is good enough? The above specifications are minimum requirements, any improvement upon them are desirable, but not necessary. The degree to which we exceed the requirements will be a function of cost. 8. Identify relationships between engineering requirements: How are the hows dependent on each other? There will be a trade off between making the trays manageable by the operator and effectiveness of the drying unit (surface area). Cost will determine the ultimate safety and robustness of the unit, but for the sake of producing a working prototype it will not be heavily considered.

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Customer Requirements V. Engineering Specifications Matrix

Engineering Specifications

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Cost Effective x x xSafe & Easy to Use x x x x xRobust x x x x x x xRapid Drying Time x x x x x x xDrying Mode x x x x x x x

Customer Requirements

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Team Agreement Structure Leader/Facilitator: Ross McGruder – Write Agenda, keep group on task Secretary: Facilitator selects a designated note taker in alternating fashion – take notes during group meetings, formalize, and send to other team members for review. Also note the specified duties assigned during the meetings and formalize.

We decided that we will manage our weekly meetings by having a set agenda for the meeting which brings up the key issues from the previous meeting(s), specifically noting the tasks each member is working on or has accomplished and make sure they were addressed sufficiently, lists points for discussion, and assigns tasks for the upcoming week. Meetings will be of a standard length (typically one hour) and if an extension of the meeting is necessary we will determine at that point if we would like to continue the meeting or schedule a new meeting.

Decision Making Decisions will be a team effort worked through by the team as a whole and being facilitated by the group leader ending ideally in an acceptable collaboration. If we cannot come to terms on a decision to be made, we will discuss the problem and the underlying issues and hopefully come to an acceptable decision. In the interest of progress and keeping an efficient structure for the meetings, the facilitator will initiate the following process. The two individuals present a synopsis of their views and have a majority vote. When the decision is of low priority, the team leader will make the authoritative decision. If the decision involves a high priority design issue, then an advisor will be referenced and the final decision will be based on their recommendations.

Conflict Resolution Conflict styles that are acceptable to the group are ones that end up in constructive discussions and fruitful decisions. We would like to avoid accommodating, compromising, or taking the conflict underground and merely express ideas and provide an environment where all the group members feel comfortable having their ideas heard. This means no personal attacks and offensive behavior.

Communication When making decisions we will consult every member of the group and have all opinions heard before we move on to different issues. If a team member does not feel like their opinions were listened to or expressed during the meeting they will need to tell the other group members that they do not feel as if they are being listened to or part of the active discussion. If the individual does not feel comfortable addressing the group, then they will need to address the group members through alternate modes.

Monthly meetings will be used to formally evaluate team dynamics and performance. The focus of these meetings will be to grow as a group and learn how each member can more effectively work in a team. These meetings will serve as a mechanism to discuss how when the group works well together and how we can continue working productively and efficiently. These meetings will also provide a platform to highlight inefficient tasks, and note ways in which the group does not work productively and efficiently. In addition, resolutions to improve productivity will be proposed. These meetings will be held monthly until the group dynamics have been worked out; at this point a consensus to end these meetings must be reached. Kara Torgerson will facilitate these meetings.

Expectations If somebody does not live up to the group expectations we will identify that behavior during the meeting and propose solutions to involve that individual in the team process.

Team Awesome decided that the most important aspect for the team to succeed and stay on schedule is to maintain a structure within the group, meaning promptness, adhering to the meeting agendas, and maintaining a group environment that encourages participation and civil behavior. We also decided that we would leave the 8:15-10:40 MWF timeslot open for meetings and teamwork.

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Preliminary Work Breakdown Structure (WBS)

Set objectives establish goals Research Design Build Prototype Testing

Develop final modualr

prototypes

Map project Brainstorm Evaluate pros & cons of previous designs Sketches Meet requirements

(general performance) Fine tune inequities

Gantt Chart Review thermo / fluid flow concepts

practicality/ ease of service CAD modleing Harry's dessicant formula Build w/ nesecarry

materials

Look at exisiting models Theories Buy parts other dessicant and concentration Wrap up loose ends

Research patents Pick 2-3 designs to prototype

Evaluate each prototye (#s vs #s), do we have enough $ and

time to build all prototypes

Find moisture meter to find moisture contant

Can it be cheaper/ better?

Talk to groups who shred (cheese, veggies) Design tray Assemble tray Effects of air movements

from dessicants

Look at Peace Corps documents Design fan airflow Assemble fan / airflow Effects of temp in food

Research Propulsion (foot pedal, hike, motor, crank) Design solar panels Assemble solar panels Drying of food

Research pressing methods Design dessicant towels Assemble dessicant towels

Research moisture testing methods

Choose characterisitcs we don't like

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Final Work Breakdown Structure (WBS)

Research Testing Design/Class Requirements

Read/common background Determine health or other hazard issues with MgCl Hand in gantt chart

Read old reports: modeling info. Create detailed test procedure for general fruit/veggie drying Brainstorm design possibilities

Determine other instrument needs. General to specific Buy/make equal thickness slicer Midterm presentation on progress

Review psychrometrics Finsih potato slice testing Hand in concept list

Read old desiccant report - take notes Purchase a bag of MgCl Make tradeoff charts and concept selections

Research solar dryer parts and "chimney effect" Analyze test data and determine best slice configuration

Determine design parameters - m-dot necessary, etc.

Order moisture meters Examine thermal storage materials Select concept(s)

Greenhouse research Desiccant application method and concentration vs. drying time testing How to achieve necessary m-dot -- vent system

Follow-up with Dr. Blackshear - focus on testing Heat vs. airflow testing DFMA

Order other instrumentsCorrelate weight-based water

measurements with moisture meter readings

Hand in outline of non-technical issues

Make drying curves for other fruits using optimal slice configuration Student lecture presentation

Make drying curves for breadfruit using optimal slice configuration Develop preliminary computer model

Behavior of water in breadfruit when dried Hand in detail design milestones

Oral presentation for semester

Rough draft of final paper

Final draft of paper

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Initial Gantt Chart: As Followed During Fall Semester

ID Task Name Duration Start Finish PreResource Names

1 RESEARCH 1 day? Fri 10/10/03 Fri 10/10/032 Read/Common Background 4 days Fri 10/10/03 Wed 10/15/03 All3 Read old reports: modelling info. 4 days Fri 10/10/03 Wed 10/15/03 Ross4 Determine other instrument needs. General to specific. 14 days Fri 10/10/03 Wed 10/29/03 Jason5 Review psychrometrics. 2 days Fri 10/10/03 Mon 10/13/03 Ross6 Read old desiccant report. Take notes. 4 days Fri 10/10/03 Wed 10/15/03 Jason & Kara7 Research solar dryer parts & "chimney effect". 7 days Mon 10/13/03 Tue 10/21/03 Ross & Thomas8 Order Moisture Meters 2 days Tue 10/14/03 Wed 10/15/03 Jason9 Greenhouse research 7 days Mon 10/20/03 Tue 10/28/03 Ross & Thomas10 Follow-up with Dr. Blackshear--focus on testing. 1 day Wed 10/22/03 Wed 10/22/03 Jason & Kara11 Order other instruments. 7 days Wed 10/29/03 Thu 11/6/03 Jason1213 TESTING 1 day Fri 10/10/03 Fri 10/10/0314 Determine health or other hazard issues with MgCl 6 days Fri 10/10/03 Fri 10/17/03 Kara15 Create detailed test procedure for general fruit/veggie drying 1 day Fri 10/10/03 Fri 10/10/03 Ross16 Buy/make equal thickness slicer (adjustable cheese slicer) 1 day Fri 10/10/03 Fri 10/10/03 Ross17 Finish potato slice testing 1 day Fri 10/10/03 Fri 10/10/03 Ross18 Purchase a bag of MgCl from hardware store 1 day Fri 10/10/03 Fri 10/10/03 Jason19 Analyze test data and determine best slice configuration (Tradeoff Chart) 6 days Mon 10/13/03 Mon 10/20/03 Thomas20 Examine thermal energy storage materials 7 days Mon 10/20/03 Tue 10/28/03 Thomas21 Desiccant application method and concentration vs. drying time testing 20 days Mon 10/20/03 Fri 11/14/03 Kara22 Heat vs. Airflow experiments 20 days Mon 10/20/03 Fri 11/14/03 Ross & Thomas23 Correlate weight-based water measurements with moisture meter readings 14 days Tue 10/21/03 Fri 11/7/03 Jason24 Make drying curves for other fruits using optimal slice configuration 18 days Wed 10/22/03 Fri 11/14/03 Thomas25 Make drying curves for breadfruit using optimal slice configuration 5 days Mon 11/24/03 Fri 11/28/03 Thomas26 Behavior of water in breadfruit when dried 7 days Mon 11/24/03 Tue 12/2/03 Thomas2728 DESIGN/CLASS REQUIREMENTS 1 day? Fri 10/10/03 Fri 10/10/0329 Hand in Gantt Chart 0 days Fri 10/10/03 Fri 10/10/0330 Brainstorm design possibilities 3 days Mon 10/13/03 Wed 10/15/03 All31 Midterm Presentation on Progress: 30 mins. 0 days Fri 10/17/03 Fri 10/17/0332 Hand in Concept List 0 days Fri 10/17/03 Fri 10/17/0333 Make tradeoff charts and concept selections 5 days Mon 10/20/03 Fri 10/24/03 All34 Determine design parameters--m-dot necessary, etc. 7 days Mon 10/20/03 Tue 10/28/03 Ross35 Select Concept (s) 0 days Fri 11/7/03 Fri 11/7/0336 How to achieve necessary m-dot--vent system 10 days Mon 11/10/03 Fri 11/21/03 Thomas37 DFMA 7 days Mon 11/10/03 Tue 11/18/03 Jason38 Hand in Outline of Non-Technical Issues 0 days Fri 11/14/03 Fri 11/14/0339 Student Lecture Presentation 0 days Wed 11/12/03 Wed 11/12/0340 Develop Preliminary Computer Model 11 days Tue 10/28/03 Tue 11/11/03 Ross41 Hand in Detail Design Milestones 0 days Fri 11/21/03 Fri 11/21/0342 Oral Presentation for Semester 0 days Mon 12/8/03 Mon 12/8/0343 Draft Paper Due 0 days Fri 12/12/03 Fri 12/12/0344 Final Paper Due 0 days Wed 12/17/03 Wed 12/17/034546 J-TERM/SPRING SEMESTER 1 day Mon 2/2/04 Mon 2/2/0447 Parts Selection and Acquisition 30 days Mon 1/5/04 Fri 2/13/04 All48 Build Protoypes 24 days Thu 1/15/04 Tue 2/17/04 All49 Test prototypes 39 days Thu 1/22/04 Tue 3/16/04 All50 CADD Modelling 32 days Mon 1/26/04 Tue 3/9/04 Thomas51 Travel kit preparation 27 days Mon 2/9/04 Tue 3/16/04 All52 BOM 5 days Tue 3/9/04 Mon 3/15/04 Ross53 Go to Haiti--Test 10 days Wed 3/17/04 Tue 3/30/04 All54 Review test results/feasibility of design 11 days Wed 3/31/04 Wed 4/14/04 All55 Make design modifications according to testing results 6 days Wed 4/14/04 Wed 4/21/04 All56 Final paper preparation 10 days Thu 4/22/04 Wed 5/5/04 All57 Share results/feasibility of design with appropriate stakeholders 7 days Thu 5/6/04 Fri 5/14/04 All

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Meeting Minutes Sep 12, 2003 The meeting began at 9:00 am with both advisors and all students. The meeting lasted until 10:20 am. This was the first meeting used to discuss logistics, budget and specs on the project. Group introductions. Don Moran, CTI 651-632-3912, email tech@compatibletecnology.org Logistics – 2 teams: mechanical for grating, and solar dehydration for the drying process. Mechanical: Rick, Fox, Spah, Anderson Drying: Mauritzen, McGruder, Emiliusen, Torgerson Process should be user friendly and quicker processing time. Mechanical shall look at the process of shedding and grating with possibility of a corer and peeler process. (Maybe dewatering?) Breadfruit will be used by Haitians, but students will practice with potatoes, eggplants, and cassava. The Drying team shall look at solar/propane methods and desiccants methods for use on breadfruit and possibly other foods.. Testing techniques will need to be determined with use of moisture meters. The final product if dry chips will be ground and used as a four in breakfast bars, trail mix, and maybe cookies. Budget: $4000 from Ireland fund for materials and testing. $15,000 from Larry Matthews for travel expenses. 15 plane tickets have been reserved, 10 ENGR students, 2 professors, and 3 French students Estimated cost for entire trip will be about $1500 per person, with possibility of students paying $500-600 of that $1500 unless more funding is acquired. This cost will be added to students St. Thomas accounts. Sep 19, 2003 A pre-meeting began at 9:00 am with everyone present with Dr. George and Mr. Moran attending at 9:30. The meeting lasted until 10:30 am.

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The meeting was used as a question answering session, to help the team know where to start. The team’s current understanding of the project so far is: A mission statement is due on Sep 26. Team Gantt charts and one collective Gantt chart. Research what has been done before. Review of Thermo laws and calculations. Questions team members had: What materials should we use/ not use? How do we account for the cost of the prototype? What are our immediate objectives? What are Haiti’s terrain, weather, and climate like? What are other variables and conditions in Haiti? Is cassava an example of the foods we will be testing? Is the 1.5 HP motor included in the $150 cost? What are the lengths of the summer/ winter days in Haiti? Do we design the peeler/corer? (is it in the budget?) Can we purchase one? Notes discussed during the meeting in response to our questions: It is hard to know what is happening in Haiti while we are in Minnesota. Dr. George has money in the account, she is checking on reimbursement procedures. Materials to use can be discussed later (some students worried about corrosion). Don’t count costs of design quite yet. Need PROOF OF CONCEPT is most important at this point. Team members should hand grate and dry (potatoes and eggplants) to get a better understanding of what it is we are designing. After team has done grating, testing needs to be done to determined when food is “dry enough” (moisture meters). Use appropriate technology. Some materials that we have access to, Haitians might not have yet. Make sure materials are cheap for them, not just us. Haitians can always import from Miami. Haitians have access to diesel, gasoline, and propane. The peeler and corer are minor. The Mechanical team should focus on the grating process. Grater needs to be of a robust design that can handle power of a motor, but still can be powered by human strength. Research patent sites for what has been done before and how did they do it.

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Check with CTI volunteers for grating ideas. Dr. Blacksmear (sp?) to help with desecants drying process. Hurry up and fail! Students will create a Work Break Down Structure (WBS). This is a chart with a breakdown of every task that will eventually need to be completed to finish this project. Each box will have a 1 sentence task description that is specific enough that it can be answered with yes or no if completed. Tasks may have a beginning or end date, and some are dependant upon other tasks being completed. The WBS will not be right the first time. Individuals to do their own chart and then a single one will be compiled. ACTION PLANS for next meeting: Dr. George will find out about reimbursement procedure. She will also bring her food shredder and food dehydrator for testing. Students to create WBS charts for 9-22-03 at 8:15 am and should begin researching patents. Also need to begin looking at moisture meters. Students will contact Dr G. and Mr. Moran about future speakers and next meeting time. Sep 22, 2003 Meeting began at 8:15am, Monday morning. Eventually everyone was present. Meeting ended at 9:45am. All 8 members made the WBS chart. 2 teams made mission statements. ACTION PLANS for next meeting: Michelle will bring potatoes. Everyone will do general research. Next meeting will be Friday, at 8:15 LL11, for shredding and research. Have Dr. George bring shredder and dehydrator for Friday meeting.

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Sep 26, 2003 Meeting began Friday 9-26-03 at 9:00am. Both groups were present in addition to Dr. George and Mr. Moran. Meeting ended at 10:00am. Individuals had researched ideas and concepts. Everyone tried grating potatoes with hand shedder and food processor. Food processor creates rice size. Their will be a meeting on Friday 10-3-03 with Mr. Moran and guest speakers. ACTION PLANS for next meeting: Next meeting for students, 9:00am 9-29-03 Monday morning 8:00 am in LL06 Mechanical Group talks to 150 class Possible Mechanical trip to culinary store. Students will begin drying methods in dehydrator in morning until evening. Dr. George will bring rice bags and meat grinder. Michelle will bring mulcher, caliper, and bicycle. Mr. Moran will bring the apple press. Ben will look into contacting people at The U’s Food Science department (Labuza?). Jason will get 4 3-ring binders. Kara will bring lava rocks and microwave Drying team splits researching jobs into Solar (Ross and Thomas, last year’s reports) and Desiccant (Jason and Kara) groups. Bobby and Adam to research more grating methods There will be a meeting Friday 10-3-03, at 8:15 LL11, for Mr. Moran and guest speaker. Oct 3, 2003 Meeting began Friday 10-3-03 at 8:15am. Members Present: Ross McGruder, Thomas Mauritzen, Jason Emiliusen Members Absent: Kara Torgerson Purpose: The meeting was held to finish the QFD (Quality Function Deployment) sheet assigned by Dr. Zell. Upon completion it was sent to Dr. Zell.

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Meeting adjourned at 9:45 am. ACTION PLANS for next meeting: Next meeting for students, 9:30am 10-6-03 Monday morning in LL54 Dr. Blackshear will be speaking about desiccants. Group members are to review Psychometrics as well as continue researching their individual topics. Oct 7, 2003 Meeting began Monday 10-6-03 at 9:30am. Members Present: Ross McGruder, Thomas Mauritzen, Jason Emiliusen, Kara Torgerson Also Present: Dr. George, Dr. Blackshear Members Absent: None Purpose: The meeting was held to introduce the team to Dr. Blackshear, learn about his research, and ask him any questions about his research involving desiccants. Main points: -Discussed the climate in Haiti -Breadfruit will be arriving in November -25 lb bag of MgCl can be purchased at the hardware store for about $12 -May wish to avoid using the wicks as they will not be cost effective -Dr. Blackshear suggested a design for drying using a solar reflector, a grid with thermal conducting legs, and the granular salt in the base. -Team needs to determine optimal size and shape of breadfruit pieces to be dried Meeting adjourned at 10:45 am. ACTION PLANS for next meeting: Next meeting for students, 8:15am 10-8-03 Wednesday morning in LL06. The team will be doing some experiments with potatoes. Group members are to be prepared for the experiments. Group members are to decide which dates work best for dinner at Dr. George’s. Oct 8, 2003 Meeting began Monday 10-8-03 at 8:15 am. Members Present: Ross McGruder, Thomas Mauritzen, Jason Emiliusen

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Members Absent: Kara Torgerson Purpose: The meeting was held to conduct drying experiments on potatoes to try and determine what was the optimal size and shape was for drying. Main points: -Thomas and Jason sliced potatoes -Slices and trays were massed and recorded -Slices were placed in 4 trays of Dr. George’s electric dehydrator -Ross set up a Data Sheet to record the data -It was decided that measurements of mass should be taken about once per hour -Ross volunteered to take the measurements Meeting adjourned at 9:30 am. ACTION PLANS for next meeting: Next meeting for students(Ross and Jason), 8:15am Friday morning 10-10-03 in LL06. The Gantt chart need to be completed. Mr. Moran will be there at 9:30 to discuss the Gantt chart. Members need to come up with items to be completed for the Gantt chart.

Oct 10, 2003 Meeting began Friday 10-10-03 at 8:15am. Members Present: Ross McGruder, Jason Emiliusen, Also Present: Mr. Moran Members Absent: Thomas Mauritzen, Kara Torgerson Purpose: The meeting was held to complete the team Gantt chart as well as meet with Mr. Moran and give him a progress report. Main points: -Mr. Moran gave some good advice on the Gantt chart. -Discussed the desiccant project as well as the meeting with Dr. Blackshear. -Mr. Moran also suggested that we clump the dehydrator and desiccant group tasks together. -Also suggested that we find out the heat and airflow correlations associated with the solar dryer. -The Gantt chart was completed and sent. Meeting adjourned at 10:40 am.

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ACTION PLANS for next meeting: Next meeting for students, 8:15am 10-13-03 Monday morning in LL06. Ross will finish up the testing as well as try to build a slicer. Jason will try to find the MgCl and pick out the testing materials to order. Oct 13, 2003 Meeting began Monday 10-13-03 at 8:15 am. Members Present: Ross McGruder, Thomas Mauritzen, Jason Emiliusen, Kara Torgerson Members Absent: None Purpose: The meeting was held to determine a list of concepts as well as assign tasks in preparation for the midterm design review. Main points: -Informed Kara and Thomas of Friday’s meeting -Made list of design concepts -Members picked their portions for the design review Meeting adjourned at 10:30 am. ACTION PLANS for next meeting: Next meeting for students: 8:00 am Wednesday morning 10-15-03 in LL06. Ross: Bring all of the old reports, finish testing, copy logbook requirements, Power Point slides on Project Management plan and Gantt chart Jason: Read MgCl MSDS as well as prepare for meeting with Dr. George, Power Point slides on customer requirements and engineering specs Kara: Read packets, bring Ziploc bags, Power Point slides on mission statement Thomas: Power Point slides on alternative concepts All: Look over Gantt chart, note any changes. Oct 15, 2003 Meeting began Monday 10-15-03 at 8:00 am. Members Present: Ross McGruder, Thomas Mauritzen, Jason Emiliusen, Kara Torgerson Members Absent: None

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Purpose: To prepare for the mid-semester review—dry run and real thing. Main points: -Went over agenda -Revised Gantt chart -Members worked on individual projects Meeting adjourned at 9:30 am. ACTION PLANS for next meeting: Next meeting for students: 8:00 am Fridday morning 10-17-03 in LL06. All:- Prepare for dry run with Dr. George at 5:15 10-15-03 -Make necessary changes to presentation

Oct 22, 2003 Meeting began Wednesday 10-22-03 at 8:15 am. Members Present: Ross McGruder, Thomas Mauritzen, Jason Emiliusen, Kara Torgerson Members Absent: None Purpose: The meeting was held to bring team members up to speed on what should be done during mid-semester break. Meeting adjourned at 9:30 am. ACTION PLANS for next meeting: Next meeting for students: 8:15 am Monday morning 10-27-03 in LL06. Ross: Research water activity. Jason: Continue trying to find moisture meters. Think of desiccant test procedure. Kara: Think of desiccant test procedure. Thomas: Read “Drying and Food Preservation” packet. All: Brainstorm new/alternative concepts.

November 26, 2003 Meeting began Wednesday 11-26-03 at 8:45am. Members Present: Thomas, Ross, Kara, Jason Members Absent: None

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Purpose: To determine tasks and schedule for remainder of week and determine final presentation tasks. Main Points: -Determined group achievements since mid-term presentation to mention in final presentation: -additional concept brainstorming (desiccant and solar) -concept trade-offs / pros and cons -concept selection -final design direction (combination of “the heat” and “the teepee” -outline of non-technical issues -thermal storage material evaluation and trade-off chart -testing plan -DOE testing -prototype building (“the heat”) -plans for the remainder of the semester -update gantt chart -Final paper/presentation topic assignments: Jason – Team member assignments, background, mission statement, customer and engineering requirements Ross – Project management Thomas – Concept selection Kara – Remaining issues, conclusions to date Meeting adjourned at 9:15 am. Action Plans: Ross/Kara – continuation of DOE testing All team members complete final presentation powerpoint slides for Monday, December 1. February 4, 2004 Meeting began Wednesday 2-4-04 at 8:15 am. Members Present: Thomas, Ross, Jason, Kara Members Absent: None Purpose: Review revised Gantt chart and bring group members up to speed with second semester tasks. Main Points: -Team will not be traveling to Haiti -Alternate locations are being considered -Must keep on task and on time with Gantt chart Meeting adjourned for individual work at 8:45.

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Action Plans: Thomas: Perform deflection tests on screen Ross: Computer model on Excel, contact Don Moran Kara: Thermal tests on plastics Jason: Contact Titus and follow up on moisture meter progress February 16, 2004 Meeting began Wednesday 2-16-04 at 8:30 am. Members Present: Thomas, Ross, Jason, Kara Members Absent: None Purpose: Check progress, assign tasks, and instill sense of urgency. Discuss some trip needs. Main Points: -Must kick efforts into high gear in order to finish this project successfully. ALL MUST WORK 8-10 HOURS MINIMUM OUTSIDE OF CLASS TIME! -We will postpone further desiccant development until after the trip. -We cannot depend on the electronic moisture meter—prepare for mass moisture measurement in St. Vincent. Meeting adjourned for individual work at 9:00 am.

Action Plans: Thomas: Construction methods, esp. the trays. Jason: Construction methods, esp. the main structure; order another hygrometer/thermometer and two additional heat flux meters (on Wednesday) and make sure that we can get them prior to the trip. Thomas and Jason: Figure out approx. how much PVC will be needed, and which fittings and how many will be needed; order fittings and create a “shopping list” to take to the hardware store on Wednesday. Ross: Make corrugated metal and wood collector inserts for use in the DOE on Wednesday; work on computer model of air flow on ANSYS; track down another anemometer (air velocity meter) and another battery operated mass balance; analyze last BF drying data and try to get a hold of Titus A. Kara: Prep for thermal collector DOE on Weds.—look for corrugated metal and purchase a bag of charcoal briquettes for thermal storage; Run the DOE on Wednesday. Other Action Items (in case anyone gets bored)* -Make mesh baskets for ease of mass measurements in Haiti—we will want several. -Any other testing equipment items we must make for the trip?

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-Begin thinking about what we want to test in Haiti; come up with test procedures and data sheets. -Begin thinking about what we will bring to Haiti; construct a packing list that everyone can review and add to. *If you work on any of these things, please just let everyone know what your plans are so we don’t duplicate any work.

February 25, 2004 Meeting began Wednesday 2-25-04 at 8:15 am. Members Present: Thomas, Ross, Jason, Kara Members Absent: None Purpose: Review progress, bring all team members up to speed, and delegate next tasks. Main Points: -Time is running short -Thomas is almost done building first full-scale prototype -Kara is thinking about DOE and instrumentation -Jason has been assisting with building and instrumentation -Ross is nearly done with Ansys model Meeting adjourned for individual work at 8:45. Action Plans: Thomas: Finish building of first prototype Ross: Finish ANSYS model Kara: Tinker with instrumentation Jason: Build baskets for moisture measurement All: Think about items to add to packing list April 2, 2004 Meeting began Monday 04-02-04 at 8: 30 am.

Members Present: Ross McGruder, Thomas Mauritzen, Jason Emiliusen, Kara Torgerson, Dr. Zell, Dr. George

Members Absent: None

Purpose: The meeting was held to review the conclusions of the trip to St. Vincent and to determine what direction the project will take for the remainder of the semester.

Main points:

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-Breadfruit dried in 4.8 hrs. in ½ scale -Breadfruit dried in 3 hrs. in direct sunlight -Need to get in touch with CTI

Options: -Pursue current design -Improve sanitation in current design -Modify current design to favor airflow vs. solar energy -Develop rainy day option

Meeting adjourned at 9:30 am. ACTION PLANS for next meeting:

Next meeting for students: 8:15 am Monday morning 04-05-04. All: Brainstorm: performance improvements for current design, improvements for an improved solar design, cost reduction methods, rainy day/propane concepts. April 7, 2004 Meeting began Monday 04-07-04 at 8:30 am.

Members Present: Ross McGruder, Thomas Mauritzen, Jason Emiliusen, Kara Torgerson, Dr. George, Don Moran, Dave Elton

Members Absent: Dr. Zell

Purpose: The meeting was held to inform CTI members of the testing results from our experimentation in St. Vincent and to also attain some guidance and direction for the remainder of the semester.

Main points: -Briefed CTI members on breadfruit drying results -Dave said that 30oF over the ambient temperature with the collector is a good sign, it was probably a ventilation problem -Would be a good idea to have uniform, interchangeable trays -Don informed us that we are not failures, but in a common area of the product design process. CTI hopes to build on our results -Dave went through his test results with propane heating. It cost him $.12 of propane to dry 1 oz. of fruit -CTI would like us to analyze the data and come to the soundest conclusions possible -Need to optimize air drying

Options: -Possibly come up with a new set of specifications -Design guidelines/conclusions about airflow -Address cost/go over calculations/”Design Directives”

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Class Requirements: 1). We have a “working prototype”

a). Test data b). Dave Elton’s words

2). We have suggestions for improvement and cost cutting

CTI Requirements: 3). Why spend more money to dry in the same of more time

a). BF dries best in open air b). How do we optimize and protect BF?

4). BF drying Do’s & Don’ts and/or guidelines(Temp/Airflow)

Meeting adjourned at 10:30 am.

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