Biochar Heat Recovery System

Transcription

1 Biochar Heat Recovery System Problem Definition Design Review Courtney Smith Kent Derbyshire Kyle Bossung Phung Tran Zak Gustavesen

2 Overview Team Introductions Project Background Problem Statement & Goals Use Scenario Customer and Engineering Requirements Risks

3 Introduction & Roles

4 Background: Biochar Porous, high carbon content, low density Biochar-soil amendment, filtration, building materials, animal feed additive Made from: cherry pits, wood, or other organic materials

5 Background: Kon-Tiki Incan Sun God Creates biochar Burns dry, woody materials Carbon sequestration, low emissions Cone shape with heat shield Burns at C

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7 Problem Statement Current State Kon-Tiki is used in over 24 countries Generally used for agricultural biochar Various heat recovery systems in use Desired State Heat recovery system to utilize excess heat Usable for multiple geographic demographics.

8 Stakeholders Ithaka Institute Non-profit based in Sweden International Biochar and farming techniques Finger Lakes Biochar Local affiliation with Ithaka Institute Kon-Tiki Operators Developing nations (Nepal) Commercial operators (Serbia)

9 Project Goals Deliverables Working prototype Sterilizes usable quantities of water Constraints Compatible with current Kon-Tiki Source materials from developing world Cost less than $250

10 Benchmarking: Purification Filtration Solar Thermal UV Radiation Activated Charcoal Chemical (iodine) Distillation Pasteurization

11 Benchmarking Convection (pictured bottom) Low efficiency Good for drying Conduction (pictured top) Un-tested Nepal s current idea

12 Use Scenarios

13 Customer Requirements CUSTOMER REQUIREMENTS Category Customer Reqt. # Importance Description Ease of Use C1 9 Easy to use by people with no technical background C2 1 Light enough to install C3 3 Easy to install Safety C4 9 Doesn't compromise heat shield C5 9 Dangers clearly apparent to operator Quality of Kiln C6 9 Doesn't compromise existing biocharing process C7 3 Cannot affect airflow for kiln C8 3 Biochar used for soil amendment Quality of HRS C9 9 Harness heat for useful application C10 3 Made with local materials C11 9 Cost less than $250 HRS Output C12 9 Produce desirable yield w/in Kiln operating timeframe C13 1 Recovery product useful to multiple demographics Versatility C14 1 System needs to be scalable C15 3 Must be used in all weather conditions/seasons C16 9 Compatible with existing kiln

14 Customer Requirements CUSTOMER REQUIREMENTS Category Customer Reqt. # Importance Description Ease of Use C1 9 Easy to use by people with no technical background C2 1 Light enough to install C3 3 Easy to install Safety C4 9 Doesn't compromise heat shield C5 9 Dangers clearly apparent to operator Quality of Kiln C6 9 Doesn't compromise existing biocharing process C7 3 Cannot affect airflow for kiln C8 3 Biochar used for soil amendment Quality of HRS C9 9 Harness heat for useful application C10 3 Made with local materials C11 9 Cost less than $250 HRS Output C12 9 Produce desirable yield w/in Kiln operating timeframe C13 1 Recovery product useful to multiple demographics Versatility C14 1 System needs to be scalable C15 3 Must be used in all weather conditions/seasons C16 9 Compatible with existing kiln

15 Customer Requirements Harness heat for useful application Excess ~200 C heat generated 3rd world countries need clean water Easy for people to use with no technical background Should be able to assemble without guidance Target users are farmers Must not compromise heat shield Kiln burns up to 750 C

16 Engineering Requirements

17 Engineering Requirements

18 Engineering Requirements Fits within heat shield envelope Maximize efficiency and performance Safety Temperature of heat recovered Water pasteurization requires T>65 C Test method: thermocouples Cost of materials Affordable for target user <$250

19 House of Quality Fits within heat shield envelope Compatible with existing kiln Doesn t affect airflow of kiln Temperature of heat recovered Harness heat for useful application Dangers clearly apparent to operator Quality of pasteurization (time) Harness heat for useful application

20 Risks Campus: There is a burn ban from March 16 - May 31 Environmental: Primary kiln use becomes water purification Safety: User injures him/herself using HRS Resource: Lose contact with international contact Social: Need the clean water faster than can be produced Technical: Can t take away too much heat from kiln

21 Phase II Customer Interaction Data collection Brainstorming from experience Iterations Deliverables Functional Decomposition Concept Generation Feasibility/Engineering Analysis

22 MSD I Project Definition Concept Generation and Selection System/Subsystem Design Detailed Design Customer and Guide communication & iterations Pass Gate Reviews to continue to MSD II

23 Goals of Gate Review Customer Confirmation Identifying operation/design risks not already considered Open ended questions from audience

24 Questions?