STRAW RESEARCH, CREATIVITY, INNOVATION AND PROMOTION IN ARGENTINA - PowerPoint PPT Presentation

STRAW RESEARCH, CREATIVITY, INNOVATION AND PROMOTION IN ARGENTINA Leopoldo DIAZ CANO

ESBG Strawbale Event RACP Topics 1.Argentine straw building network. 2.The research project. 3.Raw material alternatives and crop areas in Argentina. 4.Goals of the Argentine straw building network.

ESBG Strawbale Event RACP Argentina: 4 MILLION Has. Wheat

ESBG Strawbale Event Adriana, Pto. Madryn, Chubut, 2014

ESBG Strawbale Event RACP Thank You very much, Merci Beacoup, Muchas gracias

Peter BLOK

Frank THOMAS (Australie)

Straw wall Fire Test Strawbuild Bee ROWEN BSEN 1365-1: 2012

High straw content in the trial plaster mixes did not crack after one hour 1 : 3 : 3 1 : 3 : 2 1 : 3 : 1 Trial mixes with clay and sand only, cracked after 10 minutes 1 : 3 1 : 4

TEST WALL : 3m wide by just over 2.6m high, loaded throughout to 84kN to simulate the loading of a two storey timber framed house 7 courses of bales - compressed by about 15mm per course of bales. 4 posts of 95mm x 95mm at 1000mm centres within the wall, set 175mm back from the exposed face.

Passive refurbishment of a one family house Mael STECK Franck JANIN The project refurbishment of a 96 m² house (built in 1978). Having the opportunity to buy at reasonable price this well-located house 18

Passive refurbishment of a one family house Watertightness 19

Passive refurbishment of a one family house Exterior insulation 20

aPROpaille Recognition of straw-bales use in buildings Arnaud Evrard – UCL / Architecture et Climat

aPROpaille - Recognition of straw-bales use in buildings Research partners • Dr Ir Arch Arnaud Evrard and Prof André De Herde Architecture et Climat / LOCI / SST / UCL, Louvain-la-Neuve • Ir Gauthier Keutgen and Arch Benjamin Biot Institut de conseil et d’étude en développement durable – ICEDD, Namur • Prof Frédéric Lebeau and Ir Arnaud Louis Biose / ULg, Gembloux • Prof Luc Courard and Ir Arnaud Louis GeMMe / ULg, Liège • Arch Antoine Bonnert Paille-Tech , Franière ------------------------------------------------------------------------------------------------------------------------- • Laurence Polain DGO4 / SPW, Jambes • Olivier Dierckx DGO6 / SPW, Jambes

aPROpaille - Recognition of straw-bales use in buildings Measuring thermal conductivity and other hygrothermal parameters

aPROpaille - Recognition of straw-bales use in buildings Life Cycle Analysis

aPROpaille - Recognition of straw-bales use in buildings Internet platform www.apropaille.be

Rénovation d’une maison individuelle Peter VOS Marie-Laure PACQUET Belgique

STRAW, THERMAL CONCEPTION and PASSIVE HOUSE Franck JANIN, HELIASOL, France

Introduction Plan  My experience in thermal engineering  Building passive with straw bales  Summer comfort : monitoring of 2 houses during this really hot summer, this year  Heating with wood stove  These results and experiences are valid in Lyon/France area  Climate : “semi continental, medium cold 70 kKh (kilo Kelvin hour / year), 1100 hours equivalent fully sunny per year

Thermal engineering Passive house  Passive house definition  Well insulated house with so low heat demand that you can fulfil it by heating the air supplied by ventilation (hygienic ventilation rate)  A passive house of 100 m² will need per year (for heating)  150 liter of fuel  1500 kWh of electricity  1 stere of wood  1 m 3 of stacked wood (length 1 m)  0.6 m 3 stacked wood (length 33 cm)

Thermal engineering Straw insulation  38 cm of straw : U = 0.052/0.38 = 0.13 W/m².K 38 cm  With integrated thermal bridge (up to 10%) (wood skeleton), U < 0.15 W/m².K  Passive House recommendation U < 0.15 W/m².K  Straw bale Ok for passive house in France and most Europe

Thermal engineering hd2 Low consumption Passive House 50 kWh / m² year 15 kWh / m² year (Heating demand) (Heating demand)  Orientation  Bioclimatic  Compactness (of the heated area)  Windows triple glazing welcome with solar factor > 0.6  No thermal bridges  And …

Thermal engineering hd2 Low consumption Passive House 50 kWh / m² year 15 kWh / m² year (Heating demand) (Heating demand)  Double flow ventilation with heat recovery  Air tightness  n50 < 0.6 volume / hour  4 x better than french regulation RT 2012

Thermal engineering Ventilation / air tightness  Is air tightness mandatory ?  Heating demand kWh / m² per year 45 40 35 30 Simple flow 25 20 DF + heat 15 recovery 10 5 0 N50 volume/hour 0 5 10 Example based on values of the passive refurbishment in Valence / France

Thermal engineering Some details  It’s difficult to do something really bad with straw bale insulation and wood, but take care of basement : New passive house Psi = 0 W/m.K Heating demand : 8 kWh/m² Bad thermal bridge Psi = 0.6 W/m.K Heating demand : 18 kWh/m² Psi = 0.25 W/m.K Heating demand : 11 kWh/m²

Summer comfort Monitoring  2 straw passive houses and a standard house (1990)    Passive refurbishment New Passive Standard    Location 100 km south Lyon 100 km north Lyon Lyon suburb    Elevation 164 m Elevation 403 m Elevation 210 m    One floor One floor Two floors    Flat roof (straw) Attic (ventilated) Attic    Usage : family 4 person Not used in July Family 4 p    No window shutter Wood shutter (70%) Wood shutters

Summer comfort Results Blue = outside, Black : standard house bedroom Lyon  July temperatures Red : Passive refurb bedroom (South Lyon) Green : new passive bedroom (North Lyon)

Summer comfort Conclusion  Passive houses, straw insulated are providing a good level of comfort, even during heatvawes in this region  Needed  Protect windows from solar radiations  Open windows at night when outside temperature is lower  Take care of internal heat sources : PC’s light, owen, …  Some inertia may help

zero carbon building element intelligent design – smart construction! Thomas Dimov Swisse , Dipl. Arch. ETH, Zürich

the product 1. basic module (wall element , solar) core layers: inside u<0,15 w/ m2k outsid light clay filling 50 mm e > heat/ moisture buffer/ fire protection tj i timber frame 450 mm > bearing structure straw bales 350 mm > heat insulation h=250 cm light clay filling 50 mm > fire protection building services: cover layers: heat exchanger clay plaster 10 mm > wall heating > inside surface heat exchanger flax fleece 2 mm > solar collector > vapour barrier glass cladding flax fleece 2 mm > photovoltaic panel > wind paper t=45 cm 21.8.2015 esbg 2015 montargis/paris - thomas dimov/ch zero carbon building

THE RESULT OF MONITORING IN FRANCE

Sensors from Behrens & Krause The concept 2 instrumented walls 8 sensors by wall an internet connection to recover data 2 instrumented building

Sensors from Behrens & Krause House in Morancé (69) near Lyon 2011 Architect : Stéphane Peignier Straw compagny : Batinature

Sensors from Behrens & Krause A nursery in Muel (Bretagne) Architect : Stéphane Peignier Straw compagny : Batinature

Sensors from Behrens & Krause Results

Sensors from Behrens & Krause Analysis - Outputs Potential mould growth Start date Duration … … … …

Le GABION MONITORING ESBG 2015 Two monitoring experiences : 1) drying and rain influence of 4 different coatings on straw bales gypsum plaster, ฀ 2 earth + 1 gypsum plaster, ฀ CL ฀ NHL ฀ 2) Monitoring of an experimental building

Monitoring of an experimental Gy building