Bachelor Research Repor T
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BACHELOR RESEARCH PROJECT Student: Mieke Evers, s0154334 University: Universiteit van Twente Company: Ndassie Energy, The Hague Supervisor Company: Jean Seraphin Supervisor University: Juan Jauregui: Bachelor Coordinator: Arie-Paul van den Beukel Rechargeable lamp for people in the off-grid areas of Cameroon REPORT PREFACE report describes the process and results of my Bachelor Research This project: "The design and manufacturability of a solar powered porta- ble lamp for people of the Bottom of the Pyramid (BOP) living in the off-grid communities in Cameroon", executed on behalf of Ndassie Energy. This project was conducted at Ndassie's office in The Hague, within a period of 3 months. I would like to thank Juan Jauregui for the advise he gave me throughout the project. Even though it took me a long time to finish this project, he was still willing to examine my work and I thank him for that. I would also like to thank Arie-Paul van de Beukel to have faith in me as he was willing to give me a last chance in completing this Bachelor Project. I would like to thank Jean Seraphin, for giving me the chance to work on this project. Although the collaboration has not always been as I would have liked, I learned a lot from him. Especially from his culture and entrepreneurship. Also thanks to Mei, Percy and Gracy who were Chinese interns working on the same project. At last I would like to thank my family and boyfriend, for having faith in me and helping me out during difficult periods. EXECUTIVE SUMMARY bachelor-research-project was the most important. Also some This describes the design process reports of interns that did a similar of a chargable lamp that has been design project (referring to the BOP designed for the company Ndas- market) for different companies were sie Energy. This lamp is part of a examined. "Business in a Box" product contai- ning a Dockingstation, a solar panel, To design an unique and successful two-hundred lamps, administrative product, it was important to do a necessaries, promotion material and market research in similar (subsitite) a Demo Kit. This product has been products and other possible solutions. designed by four interns, which all design another part. My part was de- The decision was made to firstly de- signing the chargable lamps that can termine the Battery and the LED's be- be charged in Docking Station which fore considering concepts. This was can charge five times four lamps in done, because these two components the same time. are restrictive to the design of the lamp. An general research in the- Ndassie Enery is a small company, se components has been done, where situated in the Hague (Netherlands), after a list of requirements has been which is just a few years old and set up and the battery and the LED's run by Jean Seraphin. During the first were determined. phase of this project, the compa- ny was mapped out by defining the The next step was to set up an ge- stakeholders, analyzing the business neral list of requirements. These were model and executing a SWOT analysis. put together by taking in considerati- Hereafter the project goals were de- on; the most important performances, termined and the project was framed. the requirements of the employer and the end-user. By summing up the The target group of the Ndassie lamp list, the information that was collected are the poor people of Cameroon, li- during the analysis phase was also ving on less than two dollars a day used. (Bottom of Pyramid) and are living in rural off-grid areas. The most im- Eventually the choice was made to portant goal of this lamp is giving use an SLA battery with the charac- people light, so they don't have to use teristics: 6V, 5.5 Amp/h. This battery a (dangerous and unhealthy) Kerosi- provides eight trough-hole LEDS which ne lamps. By providing these people each radiate 76 lumen. With these light, Ndassie hopes to contribute to parts, the three concepts were inven- the Millenium Goals. ted. The first concept has a functio- nal design in which the most of the During the analysis phase, all the in- requirements were taken shape. The formation needed to design the lamp second concept was mainly a functio- was gathered. The reports of previ- nal design, in which the focus was on ous interns were investigated in which producing (/manufacturing) the lamp the information referring to the lamp as inexpensive as possible. The third concept has a playful design imitating the Solidworks model, in which some the shape of a firefly (as a Came- renderings of the final result can be roonian cultural symbol for light). seen. The negative and positive points of In deciding upon the materials that each concept were weighed up against are going to be needed to manufac- each other. In order to choose the ture several parts, the software CES right concept, a table has been made was utilized. Trough a list of requi- in which each concept for each re- rements and by defining the perfor- quirement was ranked. As a result mances the materials was chosen. of the outcomes the first concept was chosen, as this concept meets func- The following chapters describes the tionality, affordability and the right conclusion, the recommendations and appearance. the discussion. The main conclusion of this project was that the cost-pri- The chapter "Detailed Design" con- ce turned out to be too expensive tains a morphological chart, through for the set target group. This is due which the choices has been made to the too ambitious requirements of in the execution of various functions the employer. Suggestions to improve (for example the on/off indication) the lamp and make it a successful and the choice of different shapes product were made in the chapter (designs) of parts (for example the "Recommendations" (in which a dis- shape of the bottom part). Remai- tinction has been made between two ning decisions that were described in different target groups). this chapter were the color scheme, the graphic design of several parts The very last chapter describes the and the (complete) architecture of the discussion of my findings of this Ba- lamp. chelor-Research Project. With a cri- tical note I reviewed myself in what The next chapter was dedicated to I could have done differently what would have led to a successful result. SAMEN- VATTING deze bacheloropdracht is een op- een soortgelijke ontwerpopdracht heb- In laadbare lamp ontworpen voor het ben gedaan bij een ander bedrijf voor bedrijf Ndassie Energy. Deze lamp de BoP market bekeken. Hierbij is met is onderdeel van een Business in a name gezocht naar bruikbare infor- Box product wat onder andere een matie voor de Ndassie Lamp. Dockingstation bevat die van energie voorzien wordt door middel van zon- Om een uniek en succesvol product nepanelen. In dit dockingstation kun- te ontwerpen, was het belangrijk dat nen vier keer vijf lampen opgeladen er een marktonderzoek gedaan zou worden. Het business in a box mo- worden naar soorgelijke producten en del wordt ontworpen door vier interns, mogelijke andere toepassingen. waarvan ik er 1 van ben. In dit ontwerpproces is er voor geko- Het bedrijf Ndassie is een klein be- zen eerst de batterij en de LED's te drijf, gesitueerd in Den Haag en wordt kiezen voordat er concepten werden gerund door Jean Seraphin. In de bedacht. Dit omdat deze zeer bepa- eerste fase van het project is het lend zijn voor het ontwerp. Allereerst bedrijf in kaart gebracht, waarbij ge- is er algemeen onderzoek gedaan keken is naar de stakeholders, het naar deze twee onderdelen, waarna business model en er een SWOT ana- er een lijst van eisen is opgesteld en lyse is gedaan. Hierna zijn de project de batterij en de LED's zijn bepaald. doelen opgesteld en is er een frame- work opgezet. Vervolgens was het belangrijk om de algemene lijst van eisen op te stellen. De lamp die in deze bacheloropdracht Deze zijn opgesteld door onder andere ontworpen is, is bedoeld om arme te kijken naar de belangrijkste per- mensen in Kameroen die leven van formances, de eisen van de werkgever minder dan 2 dollar per dag (Bottom en de eindgebruiker. Bij het opstellen of Pyramid), die wonen in afgelegen van deze lijst is er ook gebruik ge- plekken zonder electriciteit, te voorzien maakt van de informatie dit is ge- van licht. Hierbij is het belangrijk dat wonnen uit het marktonderzoek. de (gevaarlijke en ongezonde) Kero- sine lampen die ze op dit moment De keuze voor de battery is gevallen gebruiken, vervangen worden door de voor een SLA battery met de speci- ontwerpen Ndassie lamp, waarmee ficaties 6V, 5.5 Amp/h. Deze voor- Ndassie wil bijdragen aan de Milleni- zien 8 trough-hole LEDS die elk 76 um Goals. lumen uitstralen. Met deze onderde- len zijn 3 concepten bedacht. Daarbij In de analyse fase is er gezocht naar is het eerste concept een functioneel alle informatie die nodig is om de ontwerp waarbij de meeste wensen lamp te ontwerpen. Hierbij zijn o.a. de en eisen tot uiting zijn gebracht. Het verslagen van de vorige interns be- tweede concept is vooral een functio- keken, waaruit de belangrijkste (voor neel ontwerp, waarbij de focus lag op de lamp gerelateerde) punten gehaald. het produceren van een zo goedkoop Ook zijn verslagen van studenten die mogelijk product. Het derde concept heeft een speels ontwerp in de vorm De volgende hoofdstukken van het van een vuurvlieg (dit als een cultu- verslag omschrijven de stijfheidsana- reel symbool voor licht).