ECO balloonPierrick Duvoisin

Lenzburg 12. Nov. 2016

Summary

o Normal balloon VS ECO balloon

o What is an ECO balloon

o IR study

o Proof of concept

o Light weight basket

o Composite floor

o Mechanical study

o Energy balance

Status of Evolution

Balloon since 1960 ECO balloon

What is an ECO balloon

Double skin to cut convectionCONVECTION

What is an ECO balloon

Nanonmetric Aluminium layer

PVD Physical Vapor Deposition

Aluminium target in PVD equipment SEM : imagery taken at CMI EPFL

RADIATION

Infrared analysis

How to prevent losses?

Double skin/ ALU coating

Aluminium shield on NOMEX

3 layers of flock Soupape

Radiation thermal losses

Fluidic analysisThermal convection losses

Thermal measurement

Sampling each 1sec

Measurement between

inner skin and outer skin

T1= out parachute

T2= in parachute

T3= Out panel

T4= in panel

Real time recording

ECO balloon first generation

ECO balloon 2nd generation HB-QWC

Proof of concept

Bench mark between 2 types of ECO balloon

Flock

MLT (Multi Layers Technology) Balloon Concept design

Safety Failure of innerskin

Light weight basket Mechanical Study

Composite floor

PMI foam

Multi composite layer

Titanium insert

Dyneema / Carbone

Titanium load frame

Light weight basket Mechanical Study

> Stress study on upper frame

> Mesh on composite floor

> 3D mesh

Energy balance vs invest.

0

5000

10000

15000

20000

25000

30000

35000

1 50100150200250300350400450500

Ballonnormal

BallonECO

Break event of ECO balloon

After how many flights my balloon is a good deal?

Nb.Heuresdevol

Prixd'unballonnormalen

CHF

Surcoûtd'un

ballonECO50%

0 16'230 16'230

1 16'230 16'23050 16'230 16'230

100 16'230 16'230200 16'230 16'230

250 16'230 16'230400 16'230 16'230 26'000

GainsurlegaznonbrûléenCHF

0

653250

650013'000

16250parité

An ECO balloon is about 50%

more expensive

Energy balance

Typedeballons ConsommationenKg/h EnergieenkWh DiffusionW/m2 KgdeCo2émisparheure

Ballonnormal 32 394 600 91ECOballon 12 148 225 34NewECOBallon 8 99 150 22

Nb.Heuresdevol

Economied'énergieenkWhBallonstandardvsECO

ballon

Equivalent

ménageschaufféssur1

année KgdeCo2économisé

1 295 68

50 14'750 5 3'40715'000 4'425'000 1475 1'022'175

If all the Swiss pilots were flying ECO balloons we could save the energy of

1475 houses !

4 time less of energy is needed if you fly with an ECO balloon vs normal balloon !

Thanks for your attention