Daedalus Stirling Presentation

Necessity is the Mother of all creations

Preserving our futureOne Project at a time

Preserving our futureOne Project at a timeProject

Introduction

Orang Asli Settlement, Kampung Sinai

Location : Bentong, Pahang

Community Fire Burning Continuously. 24/7 all year round

Observation



Fire Fueled by Logs from Forest



Community Fire Burning Continuously24/7 all year round

Observation

Fire Fueled by Logs from Forest



Community Fire Burning Continuously24/7 all year round

Observation

Project Objectives :

Design and Build a Stirling Engine Power System to generate 50W-100W of accessible Electricity for Autonomous applications

Project Objectives Statement Design and Build a Stirling Engine that operates on wood Fueled fires

Design and assemble an electrical generator and storage system

Project CORE

Team Daedalus Project WBS[Work Break Down Structure]

Project Management

Reports & Presentations

StirlingHeat Engine

Electrical Systems

Business Plans

Wood FireExperiment


Project Management


StirlingHeat Engine

Electrical Systems

Business Plans

Wood FireExperiment


Initiation

Planning

Monitoring

Closing

Project Management


Initiation

Planning

Monitoring

Closing

Project Management


Initiation

Planning

Monitoring

Closing

Project Management


StirlingHeat Engine

Electrical Systems

Business Plans

Wood FireExperiment


Project Management


StirlingHeat Engine

Electrical Systems

Business Plans

Wood FireExperiment


Kampung’s wood Our Experiment Wood

0 10 20 30 40 50 60 700

100

200f(x) = 277.795257061985 exp( − 0.0221852668089333 x )

Chart 1: Height vs Temperature

Height/cmTem

pera

ture

/ Ce

lsiu

s

Project Management


StirlingHeat Engine

Electrical Systems

Business Plans

Wood FireExperiment


Stirling engine

HOT CYLINDER

COLD CYLINDERREGENERATOR

CLOSED CYCLEFIXED QUANTITY OF AIR

EXTERNAL HEAT SOURCES

What is Stirling engine ?• ANY AVAILABLE HEAT SOURCE.

SOLAR

GEOTHERMAL

BIOMASS

• SIMPLER ENGINE MECHANISM.

• USED AS COMBINED HEAT AND POWER.

• CLEAN AND EFFICIENT.

4 MAIN PROCESSES

COMPRESSION HEATING

EXPANSION COOLING

ALPHAHIGH POWER-TO-VOLUME RATIO

Types of Stirling engine

BETA

GAMMA

HOT AND COLD CYLINDER

LOW DURABILITY SEALS

BETA

DISPLACER

POWER PISTON

SAME CYLINDER

MECHANICALLY SIMPLERLOWER COMPRESSION RATIO

GAMMA

SEPARATE CYLINDER

Stirling cycle

• Process 1–2: Isothermal compression process• Process 2–3: Isochoric regenerative transfer process• Process 3–4: Isothermal expansion process• Process 4–1: Isochoric regenerative transfer process

P T

1

2

3

4

12

3 4

SV

StirlingHeat Engine


Scaled Down Model

Literature Review

Working Prototype

Conceptual Designs

Design Calculations

Pro/EngineerModelling

ManufacturingTesting

ManufacturerCost Survey

FabricationAssembly

Design Adjustment

Scaling Calculations

THE DESIGN OF STIRLING ENGINE

Daedalus Alpha

Alpha TypeStirling Engine

Hot CylinderTransfer Tube

Piston

CasingCold Cylinder

Crank

Connecting Rod

Piston

Daedalus Alpha

31 cm

13 cm

Piston Diameter: 10 cmStroke: 5 cmSwept Volume: 393 cm3

Hot Cylinder

Cold Cylinder

Piston

Cross Sectioned View

Crankshaft

Connecting Rods

Calculation

Schmidt theory:• Most commonly used • Closed Cycle• Sinusoidal volume variation• Fairly accurate

Schmidt theory for Alpha Type

0 0.5 1 1.5 2 2.5 3 3.5 40

10

20

30

40

50

60

70

Effect of swept volume ratio

Swept volume ratio

Indi

cate

d Po

wer

/ W

Producing 100W at 300rpm

Sealed at atmospheric pressure

Portable

Light and quiet

Miniture Prototype• Based on the

Daedalus Alpha

• Smaller and easier to be manufacture

• Improves understanding on Stirling Engine

• Detects problems earlier

• Based on the Daedalus Alpha

• Smaller and easier to be manufacture

• Improves understanding on Stirling Engine

• Detects problems earlier

Miniture Prototype

• It’s an on going process

StirlingHeat Engine


Scaled Down Model

Literature Review

Working Prototype

Conceptual Designs

Design Calculations

Pro/EngineerModelling

ManufacturingTesting

ManufacturerCost Survey

FabricationAssembly

Design Adjustment

Design Calculations

Project Management


StirlingHeat Engine

Electrical Systems

Business Plans

Wood FireExperiment


Project Management


StirlingHeat Engine

Electrical Systems

Business Plans

Wood FireExperiment


Electrical Systems


Generator Research

Schematic Design

Component Price Survey

Purchasing

Assembly

Design Calculations

Required torque can be reduced by lowering the current to the alternators field coil

Able to operate at RPM as low as 300

Electrical Systems


Generator Research

Schematic Design

Component Price Survey

Purchasing

Assembly

Design Calculations

Required torque can be reduced by lowering the current to the alternators field coil

Able to operate at RPM as low as 300

Project Management


StirlingHeat Engine

Electrical Systems

Business Plans

Wood FireExperiment


Project Management


StirlingHeat Engine

Electrical Systems

Business Plans

Wood FireExperiment


Business Plans


Project Inline with the Ninth Malaysia Plan

Provide Electricity to:•Orang asli settlements •Orang asli settlements

Living out of the National Power Grid system

Business Plans


India rural household

• 75.5%• 78 million

• Deadline: 2010

Electrification of Nepal

• Difficult terrain•Remote areas•Difficult to connect to power grid

Autonomous Power Generating system required

Business Plans


India rural household

• 75.5%• 78 million

• Deadline: 2010

Electrification of Nepal

• Difficult terrain•Remote areas•Difficult to connect to power grid

Autonomous Power Generating system required

Project Management


StirlingHeat Engine

Electrical Systems

Business Plans

Wood FireExperiment


Progress Report

Progress Presentation

Final Thesis

Poster Presentation

Project Management


StirlingHeat Engine

Electrical Systems

Business Plans

Wood FireExperiment


Progress Report

Progress Presentation

Final Thesis

Poster Presentation

Thank you for time

Technology

Daedalus Stirling Presentation