======Logbook====== //This is your logbook. Insert here all relevant information regarding the evolution of your project// ===== Weekly Report ===== ==== 1st Week Report ==== * Debating about the different projects * Gathering information about the different projects * Decided to do the solar refrigerator ==== 2nd Week Report ==== * Gathering information about the topic * First meeting * Changing the topic to Solar Dryer * Visting the lab where the algae grow * Collection of information about microalgae, solar power, drying methods,... ==== 3rd Week Report ==== During this week we managed to: * take a closer look at the marketing issues * set up ethical code concerning our teamwork * discuss chosen options: hydrocyclone and distiller * focus on distiller as our choice, writing down all possible doubts * take part in 3rd EPS meeting with supervisors, discuss distiller concerns * run a test on magnetic properties of algae, which gave negative result * run a thorough investigation on: * controlers mode (liquid level, temprature sensor) * solar energy application (to run controlers and fan) * material for container (good heat conductivity, non-stick surface for algae) * filter for UV radiation * draw a block diagram of the solar algae dryer * start work on leaflet ==== 4th Week Report ==== This week was mainly devoted to creation of material list. We also made several changes to the construction of solar algae dryer. Those changes are: * new sun shinning control system - blinds controlled by step motor, * reflectors are to be installed inside the tank, not on it, * algae reamoval mechanism will be simply a valve and handle required for lifting up the tank, * there are going to be 3 fans instead of 1, * new level control system - ultrasound level control system. We also started to work on detailed scheme of our device. ==== 5th Week Report ==== Easter Holiday Week * We got feedback on our material list and we made the changes needed * Made the sketch of our system * Made 3-D model of the tank * Calculated the exact dimensions for ordering the plexi ==== 6th Week Report ==== * We wrote on Interim Report the whole week * Made charge test on the algae in INEB lab * Meeting to prepare presentation * Uploaded Interim Report and Interim Presentation ==== 7th Week Report ==== * Prepared and practised for presentation * Had Interim presentation and got feedback ===== Meetings ===== ==== 1st Meeting (2013-02-28) ==== === Agenda: === - Presentation - Modus operandi - Project proposal - Electronic Logbook === Minute: === - Presentation of the students and supervisors - Presentation of the project topics - Presentation of the Wiki page and how to use it - Presentation of the calander ==== 2nd Meeting (2013-03-07) ==== === Agenda: === 1.Environment: - What tasks/environment the object must fill/ is going to be used? 2. Dimensioning: - Is there a size limit? 3. Budget: - Are we able to build a prototype? - Are we allowed to buy used materials? 4. Design: - Outward appearance - More than one possibility (depends on marketing/sales) - Special functions 5. Framework: - What range should it operat in? 6. Technology - Efficiency (vertical vs. horizontal) - Portable vs. fixed (combination) - Electricity vs. Power autonomy (>24h) 7. Marketing - Target marketing - Costumer/consumer expectations 8. Free questions 9. Conclusion === Minute: === - Build a solar dryer that takes out the water and leaves the algae (90% algae, 10% water) - Prototype about 5l, adapt to 40-60l tanks - Temperature can't be higher than 50° C - 500€ budget to start with - built of reused materials, materials from ISEP, then identify what else materials we need -> find a shop -> ask for offer. - Design, solar panel, temperature control. - should operate in -5° - 40° C - should have a main switch, simple display (temperature) - considering also others interested in this product, fashionable right now in the bio market. - Reproducible ==== 3nd Meeting (2013-03-14) ==== === Agenda: === * Comparison of different drying methods * Distiller (two options) * Hydrocyclone * Which Solarpanel * Renewable parts to hydrocyclone? * Materials * Free questions? * Conclusion === Minute: === * Discussing the approach of the project: top-bottem * Materials: looking for local suppliers * __Discussing drying methods__: * Excluding hydrocyclone * The best distiller was the one without an extra heater * UV-protection * The dryer should be automated to its maximum extend * __Agreeing on doing 2 experiments__: * Are algae magnetic? * Can we charge algae and attract them with the opposite charge? ==== 4th Meeting (2013-03-21) ==== === Agenda: === * Tank: size vs. speed * Present block diagram * Algae removal * UV-protection (75% or 98%) * Level control * Temperature control * Micro-control * Algae and water container, mirror * Solar panel * How long should it work a day? === Minute: === * Box world * Fan: Inside/outside? One fan/two fans? How much power does it need? * Cover: blinds with a stepper motor instead of a blanket * Inside walls of the tank should be reflective * Level sensor: ultrasound * Algae removal: valve/spring/manual/… ==== 5th Meeting (2013-04-05) ==== === Agenda: === * Prototype assembling * Pro-forma invoice * Interim Report (how do we elaborate on report later on?) * Interim Presentation * Model presentation (how we exactly imagine the dryer) * Charging algae test * How far should go into the algae topic in general? === Minute: === * __Supporting structure__: available at school if we buy wheels * __Pro-forma invoice__: we go to the store and ask the prices, we present the data to Nidia * __Interim report__: template available in moodle * __Interim presentation__: mostly visual information, 15-20min * __Charging test__: mail Cristina to remind her about the charging test * __Algae topic__: we have to describe the process and how to temperature, humidity,… affect the process * __Material list__: add the 4 wheels with breaks (Rua Almada), they have the 13mm tube at school, buy the micro controller at in motion arduino ==== 6th Meeting (2013-04-11) ==== === Agenda: === * Buying plexiglass * Interim report feedback * Technical documentation * Users manual * Product assembling instructions? * Temperature effect on microalgae === Minute: === * Abstract: more assertive, describe more what we want to build * Objectives: we have to mention: water 10%, how much time it will take, space we can use… → the requirements of the client * Related projects: not only for algae, just removing water is similar enough * Units!! K =Kelvin and k =1000 * End state of the art: conclusion “we use a tank of Plexiglas because…” of “this material is better but we had to use something from school” * Technical documentation: appendix: datasheets we used to make are decisions * Functions: all the functions, not only the main ==== 7th Meeting (2013-04-18) ==== === Agenda === Interim presentation === Minute === * Presentation * Evaluation ==== 8th Meeting (2013-04-22) ==== === Agenda: === - Could you recall the concerns that you think we should include into our report? - What about the money? Should we already collect proforma invoices? - Do we have to create proper 3D model of the divice? - Algae charging solution - application of polymer? Where to look for? - Why ultrasound controller is not a good solution? === Minutes: === - Contact with Cristina in order to proceed with algae attraction system - possibility of applying positively charged metal plate to attract algae - Characteristics of sensors and controlers should be checked - Electric diagrams/charts should be prepared - 3D model should be created - Problems with ultrasound sensor should be checked, test ought to be conveyed. - Rethink removing algae system. ==== 9th Meeting (2013-05-02) ==== === Agenda: === * Discuss 3D model * Presentation of drawings * Charging system - solution * Feedback from prototype building meeting * Ultra sound sensor test * Buying materials * Stepper motor: bipolar, unipolar, DC? ==== 10th Meeting (2013-05-09) ==== === Agenda: === * Discussing drawings * Budget * Purchase === Minutes: === * Arduino: set up * Discussing budget * To do: connection motor and blinds (if polymer: Joao Francisco (jfs) F327, if metal: Fernando Ferreira (fjf) F329) * To do: adding relays to budget ==== 11th Meeting (2013-05-16) ==== === Agenda: === * Charging test - results * Ultra sound sensor test - results * Stepmotor - blinds connection === Minutes: === * General remake: update the wiki (not only in word) with our corrections of the intrim report * What we need: construction for capacitor * Has the solar panel 20V output? * Will it work if lower voltage (12V)? But it will just take longer. → TEST * Maybe higher voltage is better because it will take less time, less time is less energy. Because it is an electrostatic charge * Not only taking pictures but measure the density → more scientific * Test different kind of algae with capacitor * Ultrasound test: problem sensor: 1cm was the lowest measured point. Solution: change software (x.10 / 58 → to mm) * Work on our group: only 2 people attended this meeting ==== 12th Meeting (2013-05-23) ==== === Agenda: === * Charging test * Ultra sound sensor test * Stepmotor - blinds connection * Place to assemble everything? * Electrical wires === Minutes: === * Discussing results tests: tests were successful * Solution steppermotor connection: protect rubber from UV * If we need tools: let the supervisors know * To do: Support sensor, Rails blinds, Email Benedita if she can switch her male for female wires ==== 13th Meeting (2013-05-30) ==== === Agenda: === - Is there any template for User Manual? - Arranging meeting for writing the program - Plexiglass === Minutes: === * User manual: * How to connect and switch on/off * How to interface → Functionalities * Discussing the programming * Final presentation: * Integrate sustainability, ethics and deontology and marketing. Just one slide per subject * 15 min (5min for demo) ==== 14th Meeting (2013-06-06) ==== === Agenda: === - Can we ask for help with connecting all the electrical appliances? - Printed report: when do we have to hand it in? === Minute: === * Solution glue: chloroform * Pushed deadlines: not for us (uploading monday is good too) * Connection electrical components: if we have a scheme of it they can help us * Printed report: after last feedback ===== Activities ===== //Please register here all project activities// ^ Start ^ End ^ Task ^Description ^ Who^ |2013-03-01|2013-03-03|Choose the project topic | | Team 1 | |2013-03-05|2013-03-05|Wrote agenda for the first meeting | |Team 1 | |2013-03-07|2013-03-07|First supervisor meeting |Changed the project to solar dryer|Team 1| |2013-03-09|2013-03-09|Gantt chart and task allocation ||Sven, Ola | |2013-03-11|2013-03-11|Meeting about different drying methods and research,writing week reports||Paul,Sven,Ola,Benedicte| |2013-03-12|2013-03-12|Setting up ethical code for teamwork| |Team 1| |2013-03-13|2013-03-13|Inside team meeting| Discussion over distiller |Paul,Sven,Ola,Benedicte| |2013-03-14|2013-03-14|Supervisors meeting| |Team 1| |2013-03-15|2013-03-15|Laboratory experiment| Checking algae magnetic properties|Paul,Sven,Ola,Benedicte| |2013-03-15|2013-03-17|Research| Creating first chapters of state of art| Team 1| |2013-03-18|2013-03-18|Meeting| Creating Box World, Material List| Team 1| |2013-03-19|2013-03-19|Group meeting|Agenda for 4th supervisor meeting, Work division, Discussion over different mechanisms in algae dryer| Team1| |2013-03-22|2013-03-22|Group meeting|Finished Material List|Paul,Bartek,Ola,Benedicte| |2013-04-03|2013-04-03|Group meeting|Discussed and divided tasks for the next week, wrote Agenda for 5th meeting, finished material list|Paul,Ola,Sven| |2013-04-08|2013-04-08|Group meeting|Working on seperate parts of the report, working on presentation for Energy & Sustainablility| Team 1| |2013-04-11|2013-04-11|Group meeting|Discussed the work plan for the next week|Team 1| |2013-04-12|2013-04-12|Laboratory experiment|Charging test in INEB lab|Team 1| |2013-04-12|2013-04-12|Group meeting|Preparing interim presentation|Team 1| |2013-04-18|2013-04-18|Presentation|Interim presentation|Team 1| |2013-04-19|2013-04-19|Project management|Made sprint for next 14 days|Paul, Sven, Benedicte| |2013-04-23|2013-04-23|Meeting|Tasks for next weeks, discussed feedback on interim report|Paul, Sven, Benedicte, Ola| |2013-04-24|2013-04-24|Meeting|Tried to meet with João Silva|Ola| |2013-04-26|2013-04-26|Meeting|Discussed plexiglas problems with João Silva|Sven, Bartek| |2013-04-30|2013-04-30|Meeting|Discussed the to do list and agenda for next meeting|Sven, Ola, Benedicte, Paul| |2013-05-02|2013-05-02|Test|Ultra sound sensor test|Sven, Benedicte, Paul| |2013-05-03|2013-05-03|Meeting|Discussion with Benedita|Ola, Paul, Benedicte, Sven| |2013-05-08|2013-05-08|Test|Algae charging test|Team 1| |2013-05-09|2013-05-09|Test|Algae charging & ultra sound sensor|Team 1| |2013-05-20|2013-05-20|Test|Algae charging with amended voltage|Benedicte, Paul, Sven| |2013-05-21|2013-05-21|Purchase|Purchasing of materials|Benedicte, Paul| |2013-05-22|2013-05-22|Test|Ultra sound sensor with amended software|Bartek, Sven| |2013-06-03|2013-06-03|Meeting|Meeting with João Francisco concerning assembling of the tank| Ola| |2013-06-03|2013-06-03|Meeting|Group meeting, working on the project together| Team 1| |2013-06-03|2013-06-03|Assembling|Connecting wheels to the pallet| Bartek, Ola| |2013-06-03|2013-06-03|Meeting|Benedita's advice on programming| Bartek, Ola| |2013-06-04|2013-06-04|Meeting|Working on the deliverables|Paul, Sven, Benedicte| |2013-06-05|2013-06-05|Meeting|Assembling the report|Sven, Paul|