Sustainable building material oliver kreft

Building Green 2015 Forum Copenhagen Oct 28, 2015

Sustainable Building Materials –

Design and Construction of a Plus Energy House

Oliver Kreft Xella T+F GmbH

YTONG

SILKA

HEBEL

FERMACELL

FELS

Dr. Oliver Kreft路 Xella Technologie- und Forschungsgesellschaft mbH 路 10/30/15

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Plus Energy House Standard YTONG

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Definition and Calculation Method Definition In its publication on the allocation of grants for model “plus-energy” housing projects, the Federal Ministry of Transport, Building and Urban Development defines the plus-energy house standard as achieving negative annual primary energy use ( Q p < 0 kWh/(m²a)) combined with negative annual final energy use ( Qe < 0 kWh/(m²a)).

All additional conditions of the Germany Energy Conservation Regulation 2009 (EnEV), such as the provision of thermal comfort in the summer, must also be complied with.

Calculation Method Primary and final energy use is verified on the basis of the German Energy Conservation Ordinance 2009 (EnEV) in accordance with DIN V 18599. In addition to the EnEV verification procedure, final and primary energy use values for household lighting, appliances and processes must be included in the calculation.

This is based on a standard value of 20 kWh/m²a per dwelling (with cooking accounting for 3 kWh/m²a) up to maximum of 2,500 kWh/a per dwelling.

Dr. Oliver Kreft· Xella Technologie- und Forschungsgesellschaft mbH · 10/30/15

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The Project House M1 YTONG

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Dr. Oliver Kreft路 Xella Technologie- und Forschungsgesellschaft mbH 路 10/30/15

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The Construction YTONG

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Interior wall

CSU

slab

U= 0,16 W/ (m²K)

t

11,5/17,5 cm

22 cm EPS insulation

Bottom and above the slab

roof

U= 0,16 W/ (m²K)

26 cm mineral wool

Insulation between rafters

window

U= 0,80 W/ (m²K)

Three layer

Solar transmission 55 %

Wall

U= 0,15 W/ (m²K)

Ytong energy plus

t= 40 cm

Domestic Installation YTONG

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Carport system with photovoltaic for charging the electric vehicle (part of the program)

• • • • • •

Heat pump (air/water) Solar thermal panels (8.9 m²) PV panels (65 m²) Ventilation system with heat recovery Tank in tank storage system (1000 liter)

Special thin-film modules for walls Battery system Lithium ion for 20 kWh

Heating Demand of the M1-House YTONG

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year : 3905.50 kWh corresponds to 20.90 kWh/m² Thermal bridges have been calculated in detail Result: 0,01 W/(m²K) related to the heat exchanging envelope

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Jobsite M1 in Brieselang/Berlin.

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Monitoring system â&#x20AC;&#x201C; measuring points indoor climate YTONG

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2 HFS

1 1 2

HFS 2

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Relative Humidity and temperature Measure point temperature on surfaces

HFS

1 HFS

HFS

1 2

2

heat flux sensor

GROUND FLOOR

Monitoring system â&#x20AC;&#x201C; measuring points indoor climate YTONG

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1

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Relative Humidity and temperature in the room

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FIRST FLOOR

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Description monitoring  Building physics data  Detecting the temperature at all four exterior walls both exterior and interior surfaces  Attaching a heat flow meter on the inside of the west facade  Determination of temperature and humidity in all rooms  Recording of the CO2 content of the air in the central living area (kitchen, living, dining)  capture data on efficiency heat pump and photovoltaic system

CO2-sensor

 Recording of data:  All 30 minutes  Data can be read remotely (via the Internet)  Monthly presentation of evaluation and compilation to homepage M1-house: http://www.m1energieplus.de/

Heat flow meter Dr. Oliver Kreft· Xella Technologie- und Forschungsgesellschaft mbH · 10/30/15

Monitoring Results YTONG

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Final energy and primary energy consumption [kWh/m2]

Dr. Oliver Kreft路 Xella Technologie- und Forschungsgesellschaft mbH 路 10/30/15

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Cost Overview YTONG

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Dr. Oliver Kreft路 Xella Technologie- und Forschungsgesellschaft mbH 路 10/30/15

Statements of the Tenants after 1 Year YTONG

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 Of course we have also previously employed with the topic of energy efficiency and environmental awareness. So we educate our son.

Nevertheless, it is a whole new experience, now try it for yourself and live it every day. We have already learned a lot “  „It is getting used to live without opening a window. But it works fine and from time to time we do it again.  The two have firmly resolved to let the public share in your experience, via website, Youtube and Facebook.  The best thing: Meanwhile they bought the M1-House – you cannot get a better proof.

Dr. Oliver Kreft· Xella Technologie- und Forschungsgesellschaft mbH · 10/30/15

Conclusions YTONG

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 By using simple, but well thought design-details, a Plus-Energy house by solid construction is not a distant vision anymore.

 It was possible to avoid artificial insulation materials in the walls and in the details of the joints.

 The concentration on only one component lead to undesirable developments and an artificial change in the construction market in Europe.

Thus, as soon as innovative approaches in combining the construction with service installations in a way that the users benefit directly, the market will increase.

 Next to the cost the technically most sensitive part is the energy storage system within the building. Here, a quantum leap for battery systems is needed which are applicable in households.

 The M1-house won the Energy Award in the category “Energy Building of the Year” in 2013.

Torsten Schoch · Xella Technologie- und Forschungsgesellschaft mbH · 30.10.15

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Torsten Schoch 路 Xella Technologie- und Forschungsgesellschaft mbH 路 30.10.15

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