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

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

May 20, 2023 672 likes •771 views

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

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SLIDE 1

Spark

a portable device for harvesting excess cooking heat

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SLIDE 2

User Needs & Background

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

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SLIDE 3

Spark

A thermoelectric phone charger that:

Can be used with any cooking pot Uses passive heat from everyday activities Features USB port

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SLIDE 4

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 situations Versatility Materials used can withstand prolonged exposure up to 600 °C

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SLIDE 5

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.
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SLIDE 6

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.

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SLIDE 7

Market & Pricing

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

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SLIDE 8

Next Steps

  • Optimizing thermal flow
  • Increase power output
  • Form factor and user testing
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SLIDE 9

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)