Spark a portable device for harvesting excess cooking heat User - PowerPoint PPT Presentation

Spark a portable device for harvesting excess cooking heat

User Needs & Background People in developing Phones provide access to countries with limited mobile banking, healthcare, electricity access need a way educational tools, and to charge their phones. government resources. [1]

Spark A thermoelectric phone charger that: Can be used with any cooking pot Uses passive heat from everyday activities Features USB port

Spark Product Contract Customer need Product Attribute(s) Engineering Specification(s) Can reliably charge a phone Power Output Delivers between 2-6 W Is easy to store Size Fits within a volume of 8’’ x 8’’ x 4’’ Is safe to touch Safety Exposed contacts are less than 37 °C Can adapt to many cooking Versatility Materials used can withstand situations prolonged exposure up to 600 °C

Can we harness enough power to charge a phone? ● Mockup currently provides 1.8 W with 10 thermoelectric modules in series. ● Need at least 2 W to charge a phone.

Is Spark more beneficial to our target user than existing products? ● Currently, solar power is the only alternative in off-grid electricity implementations. [2] ● Spark uses passive heat and requires no change in infrastructure. ● Spark is less expensive than current alternatives.

Market & Pricing Ready Pay 10W Spark Electric Utilities ($4.07/mo.) [4] ($2.21/mo.) ($25/mo.) [3]

Next Steps ● Optimizing thermal flow ● Increase power output ● Form factor and user testing

References [1] Digital inclusion and the role of mobile in Nigeria, https://www.gsma.com/publicpolicy/wp- content/uploads/2016/09/GSMA2015_Report_DigitalInclusionAndTheRoleOfMobileInNigeria.pdf , (Accessed 10/16/2019) [2] Determinants of mobile phone ownership in Nigeria. Telecommunications Policy. 10.1016/j.telpol.2019.03.001. [3] Cost of Living in Nigeria, https://www.numbeo.com/cost-of- living/country_result.jsp?country=Nigeria&displayCurrency=USD, (Accessed 10/16/2019) [4] ReadyPay Solar Power System, https://www.engineeringforchange.org/solutions/product/readypay-10w-home-starter-kit/, (Accessed 10/16/2019)