Ipj - engineering office p - Christina Cherry

New Mosque in Kazakhstan: a model of energy-efficiency

As the world’s first mosque, the Yryskeldi Qajy Ata Meshiti Mosque in the Kazakh city of Astana has a positive electricity balance during the year. At the same time, their heating energy requirements are about two-thirds lower than for comparable buildings.

The mosque is one of the first four buildings in the world to be awarded the "Austria Green Planet Building Award" in May 2018. The prize, awarded by two Austrian ministries, in particular honors energy-efficient buildings that have been constructed or upgraded with the participation of Austrian designers. For the optimization of thermal energy in the construction of the Yryskeldi Qajy Ata Meshiti Mosque, completed in 2018, the Vienna office of "IPJ Ingenieurbüro P. Jung GmbH" was responsible for the building simulation and the building services consulting, and developed the energy concept together with "NEUE BAUPHYSIK UND ENERGIEDESIGN GMBH – NEUBAU" for the 4,000 square meter complex.

Extensive outdoor photovoltaic systems in the mosque include walkways and carports. They produce more electrical energy than is needed in the building. The demand for heating has been reduced to about one-third (35 percent) of what is normal in Kazakhstan through a clever combination of measures to increase energy efficiency. In addition to targeted thermal bridge optimization, higher insulation standards also contribute – for this reason the mosque was equipped with quadruple glazing. "The Leitwerk GmbH" contributed to the planning and implementation of an efficient ventilation strategy with 75 percent heat recovery. The total investment cost for the energy system totaled to 400,000 euros.

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Award

(Architects: xxx / Contractor: xxx)

Austrian Embassy, Bangkok: A lighthouse project

The new Embassy and Consulate building of the Republic of Austria in the Thai capital of Bangkok sets standards in the field of sustainable construction: the architecturally sophisticated building is designed as a PlusEnergy building.

Due to its energy efficiency and the approximately 600 square meter photovoltaic system, the embassy building, completed in 2017, has a positive energy balance in its annual operation. The self-supporting photovoltaic roof produces more electricity than is consumed throughout the year in the building. The electricity generated is used entirely on site, so that the embassy building has a high degree of economic efficiency. The consistent use of locally available materials such as laterite and teak and a state-of-the-art architecture also make the building an example for the entire region and provide a very positive response in professional circles.

The users appreciate the pleasant building climate, to which the well thought-out energy concept contributes significantly. The photovoltaic system not only generates energy, but is also part of the ventilation and cooling concept: it provides shade and ensures that the building is bathed in pleasantly cool air. A central ventilation system with small but adequate external air volumes and decentralized cooling registers ensures comfort. The windows are fitted with overcurrent wings, which are also used for night cooling and especially for moisture removal. Overhanging roofs and specially created planting areas ensure natural shading and cooling. The existing stock of trees was also integrated into the planning. A rainwater cistern is used to irrigate the plants.

The holodeck architects office is responsible for the architecture and general design, and the structural design was carried out by gmeiner haferl zivilingenieure zt gmbh.

IPJ services

Award

(Architects: xxx / Contractor: xxx)

IKEA-Kaarst: The "More Sustainable Store"

IKEA has opened its most sustainable furniture store worldwide in Kaarst, near Düsseldorf. The "More Sustainable Store" is not only intended to set new standards in terms of environmental compatibility, but also to motivate customers towards a more sustainable life.

The IPJ engineering office has helped to develop the energy concept for the ground-breaking new IKEA building, combining a variety of resource-saving technologies: a combined heat and power plant and a solar thermal and photovoltaic system ensure environmentally-friendly energy generation and particularly good insulation for a pleasant climate. The energy-saving LED lighting is controlled according to the daylight, and rainwater and wastewater are recycled. The individual parts of the building are connected by green terraces; the outdoor facilities were created in collaboration with the German Nature Conservation Association (NABU) and have been designed to serve the protection of biodiversity.

Since its opening, the furniture store that is flooded with light has been one of the flagships of the "Climate Expo. NRW" climate protection initiative, which was launched by the state government of North Rhine-Westphalia. "With the world’s most sustainable IKEA furniture store in Kaarst, IKEA has shown that commercial real estate and climate-friendly construction work together extremely well," praised Dr. Heinrich Thorn, Chairman and Managing Director of KlimaExpo.NRW. The audit for BREEAM certification was supervised by IPJ and was recently completed very successfully. With the coveted certificate, the British research institute BRE (Building Research Establishment) certifies an "Excellent" standard for all aspects of sustainability.

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(Client: IKEA Verwaltungs GmbH, Wallau / Architect: Henning Larsen Architects, Munich)

IKEA Kaarst: The "More Sustainable Store"

IKEA has opened its world’s most sustainable furniture store in Kaarst near Düsseldorf. The "More Sustainable Store" should not only set new standards in terms of environmental compatibility, but also inspire customers to live a more sustainable life.

The engineering office IPJ helped develop the energy concept for the pioneering new IKEA building and combined a variety of resource-saving technologies: a combined heat and power plant, a solar thermal and photovoltaic system ensure environmentally friendly energy generation, particularly good insulation for a pleasant climate. The energy-saving LED lighting is controlled dependent on daylight, and rainwater and waste water are reused. The individual parts of the building are connected by green terraces; the outdoor facilities were designed in cooperation with the Naturschutzbund Deutschland (NABU) and are designed in such a way that they serve to protect biodiversity.

The light-flooded furniture store has been one of the flagships of the climate protection initiative since it opened "KlimaExpo.NRW", which the state government of North Rhine-Westphalia launched. "With the world’s most sustainable IKEA furniture store in Kaarst, IKEA shows that commercial real estate and climate-friendly building work together wonderfully", praised Dr. Heinrich Dornbusch, CEO of KlimaExpo.NRW. The audit for the BREEAM certification was supervised by IPJ and was recently successfully completed. With the coveted certificate, the British research institute BRE (Building Research Establishment) certifies the standard "Excellent" in all aspects of sustainability.

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(Client: IKEA Verwaltungs GmbH, Wallau / Architect: Henning Larsen Architects, Munich)

Montforthaus Feldkirch, Vorarlberg

The Montforthaus in Feldkirch is an event building in Vorarlberg, in which up to 3,000 people can attend concerts and conferences in a special atmosphere. The building is located on the edge of the old town of Feldkirch, with a direct view of the Schattenburg.

The architects’ association Hascher Jehle, Berlin and Mitiska Wäger, Bludenz took on the task on behalf of the city of Feldkirch to create a replacement for the non-refurbished event building from the 1970s. The architects not only solved this task with flying colors, they also met the given cost limit.

The energy concept is complex. The building’s energy performance certificate corresponds to class A. The geothermal heat pump, which takes heat and cold from the flowing river Ill, is supplemented by district heating. The concert hall is equipped with the latest generation of LED lighting – dimmable from 100 to 0 percent, it enables continuous adjustment of the brightness. Extremely efficient ventilation units supply the interior. In summer, the foyer is also naturally ventilated by automatically controlled facade flaps, thereby cooling it.

The largest electrical consumers are managed in accordance with the requirements of the smart grid in energy management. The energy concept is based on the IPJ principle “Energy follows People”; this means that air, light and heat follow the flow of the audience. In this way, a needs-based energy supply with minimal use of resources is achieved.

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(Architects: Architects’ Association Hascher Jehle, Berlin and Mitiska Wäger, Bludenz, Client: City of Feldkirch)

Sparkasse KölnBonn Friedensplatz

The Friedensplatz location in Bonn has a long tradition for the Sparkasse – the financial institution has been based here since 1913. A hundred years later, the new Sparkasse KölnBonn building was built on this site as a sustainable and energy-efficient administration and retail building.

The building was awarded the DGNB certificate in gold in 2014. From the beginning, a particularly efficient and balanced energy concept together with ecological and social aspects played an important role. The issuance of the DGNB certificate included the review of a total of 53 sustainability criteria. All in all, all aspects led to an exemplary overall picture, composed of modernity, intrinsic value and special responsibility towards customers, employees, the environment and the important location in the heart of Bonn.

The building is powered by renewable geothermal and solar energy, supplemented by district heating. The Sparkassen office is characterized by a particularly high-quality daylight concept; the focus is on the comfort of employees and customers. The offices and the social rooms are characterized by high thermal comfort combined with low energy consumption, as well as access to a variety of attractive roof gardens and spacious windows with an impressive view of the historic roof landscape.

Natural stone facades and concrete ceilings serve as storage mass. All ceilings have been thermally activated. Suspended acoustic panels effectively reduce reverberation times. Decentralized ventilation units supply air and heat to every single room exactly as required. The sun protection reflects daylight into the depth of the room and at the same time protects against overheating.

The Sparkasse building at Friedensplatz embodies how we at IPJ imagine the future to be built: modern, elegant, reserved, yet consistent in protecting the environment and the appreciation of its residents, customers and employees. This was made possible by the constructive and respectful cooperation from design to commissioning: with our clients, the architects and all the specialist planners and craftsmen involved.

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(Architects: Ortner and Ortner Baukunst, clients: Sparkasse KölnBonn, DAL Bautec and ProBonnum)

Projects in the spotlight

The projects shown represent a small selection of the innovative buildings we have planned. Modern, spacious architecture, efficient plant technology, economical building operations and environmentally friendly building products – these are the qualities of innovative buildings that we would like to introduce to you below.

DEG-Bank, Cologne

DEG has set new environmental standards with the new construction of its administration building in downtown Cologne.

Achleitner organic farm, Eferding

Energy optimization before the groundbreaking: The Achleitner organic farm in Eferding, Upper Austria, was modeled using a computer simulation (TAS).

Atmos in the Arnulfpark, Munich

The engineering office IPJ created the energy certificate for the building, which was awarded the DGNB Silver.

Finanz Informatik, Frankfurt / Main

The six-story glazed hall of today’s Frankfurt headquarters of Finanz Informatik posed a particular planning challenge.

Cubus am Seestern, Düsseldorf

KITA "The Sprouts", Monheim

The KITA for Bayer CropScience in Monheim is one of the first plus energy buildings of its kind. It produces more electricity than it consumes.

Solar settlement "Am Leimbacher Berg"

Sparkasse KölnBonn Friedensplatz

Montforthaus Feldkirch, Vorarlberg

Solar settlement "Am Leimbacher Berg"

The solar estate at Leimbacher Berg of Bayer Real Estate is characterized by a particularly low heating requirement. The project resulted from winning the state competition 2002 MSWKS of the state of North Rhine-Westphalia.

Passive house thermal insulation and large south-facing passive house windows minimize heat loss. A shadow-free urban planning solution was found with the help of computer simulations. The “solar harvest” of the entire settlement is over 98%; the energy and light losses are almost zero. The construction project was included in the research and funding program "50 solar settlements" of the state and the energy agency NRW.

Controlled living space ventilation with highly efficient heat recovery is part of the selected passive house concept. A 36-meter-long earth duct (L-EWT) is connected upstream of the supply and exhaust air unit in order to operate the highly efficient heat exchanger frost-free. In summer, the fresh air can be cooled to 22 ° C using the earth duct.

70% of the hot water is heated via collectors, which have been placed as a summer shade in an optimized position to the south windows. The heating energy of 14 kWh / m2a is provided by geothermal energy. Each residential unit receives one own, Approx. 60 meter deep borehole, combined with a brine-water heat pump and a 600 liter heat storage. The entire supply of fresh air and heat is ensured with devices from Stiebel-Eltron. The technology has proven itself in practice, according to the results of the BUGH Wuppertal measurements. All systems are controlled by a single, optimized regulation and control unit, which is crucial for the high efficiency of the overall system.

The entire integral planning process was characterized by the analysis of different solution variants. Pros and cons were presented from the perspective of the building owner, the architect and the engineer and weighed together. Due to the close interlocking, the resulting design could be optimized in a timely manner and down to the last detail. We are all a little proud of the result: the houses on Leimbacher Berg have succeeded in reducing CO2 emissions to a quarter of what is customary for a new building in a conventional design, with the houses’ purchase price being completely customary.

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Energy supply concept tanning analysis CO2 balance thermal bridges (47 WE)

(Architects: tr.architekten, Cologne / Bielefeld / Client: GeWoGe, Leverkusen)

Day care center "the children" in Monheim

The first climate-neutral day care center in Europe is located on the Bayer AG site in Monheim. The company kindergarten of Bayer Crop Science bears the beautiful name "the children".

In the beginning there was an ambitious goal. The new day care center should not only offer ideal conditions for the children, but should also have a balanced energy and CO2 balance over the year.

This ambitious goal was achieved with the help of a consistently energy-optimized building that generates its entire energy requirements from renewable energy sources with maximum comfort. From the insulation to the building envelope and shape and the size and arrangement of the windows to the selection of the devices and systems used, every single component was put to the test and optimized in terms of energy.

Every kilowatt hour of energy used for heating, hot water and ventilation, lighting, kitchen appliances and computers comes from geothermal and solar energy. A 49 kW photovoltaic system with an area of 345 square meters is integrated in the roof, a geothermal system with four geothermal probes of 98 meters each and a 28 kW heat pump rounds off the energy supply. The EnEV was undercut by 80%.

The concept worked: In the first year alone, the building produced a surplus of 13,600 kWh of electricity – enough to supply three four-person households with electricity for one year. The CO2 savings of 50 tons achieved even exceeded the expectations of the planners by nine tons.

The EU Commission’s Institute for Energy and Renewable Energy has awarded the climate-neutral day care center with the Annual GreenBuilding Award, the Association of German Architects has awarded it the "Award for Good Buildings" and the Federal Ministry of Economics and Technology the "BMWi Award 2009 for Architecture Energy". With construction costs of less than 500,000 euros per group, the daycare center in Monheim was a highly successful milestone for Bayer MaterialScience’s EcoCommercial Building (ECB) program, which aims to develop energy-optimized buildings.

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(Architects: tr architects Cologne / Bielefeld, client: Bayer RealEstate Leverkusen)

DEG-Bank, Cologne

DEG has set new environmental standards with the construction of its new administration building in downtown Cologne: It was the first building in the city to receive a gold certificate from the DGNB. The engineering office IPJ developed a customized >

The energy-efficient and environmentally friendly building falls below the legal requirements by a good third and saves around 700 tons of CO2 annually compared to conventional office buildings. This is achieved, among other things, through consistently low energy consumption, environmentally friendly generation of cooling energy from the groundwater and a grid-connected photovoltaic system for CO2-free Generation of solar electricity. A climatic and architectural highlight is the large glass convertible roof of the courtyard, which opens automatically when the temperature rises. The successful new building shows in an exemplary manner how attractively energy-efficient and sustainable buildings can be designed.

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Energy conceptsBuilding simulationLight simulationFlow simulation Tariff advice, green electricity tender

(Architects: J.S.K Architects, Düsseldorf / Client: J.S.K International, Frankfurt am Main)

Achleitner organic farm, Eferding

Energy optimization before the groundbreaking: The Achleitner organic farm in Eferding, Upper Austria, was modeled using a computer simulation (TAS). The energy concept developed by the IPJ engineering firm uses the ground as a source of heat and cold. Straw was used as a renewable raw material for the insulation of the large hall.

The new Achleitner organic farm in Eferding, Upper Austria, was modeled using a computer simulation (TAS program). Cologne specialists then simulated a reference year in which all weather developments typical of the Linz region from frost to dog days were simulated and calculated on the computer. The savings achieved on the basis of these results are particularly astonishing in the area of heating costs.

As part of the simulation, the extremely dynamic operation of the new house with changing occupancy, working and opening times was taken into account, as was the reaction of the building and the plants to all these influences. With the help of this method, the P. Jung office was able to calculate the future indoor temperatures and energy requirements in advance and optimize them step by step in ever new variation calculations.

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Energy supply concept Straw bale insulation Solar concept Cooling concept

Atmos in the Arnulfpark, Munich

The engineering office IPJ created the energy certificate for the building, which was awarded the DGNB silver, and helped to optimally set up the control system using a dynamic simulation model with over 200 zones.

In the Arnulfpark, a development area of CA Immo at Munich Central Station, the atmosphere of KSP Architects is a striking cornerstone of the district. The building forms a clasp around two evergreen courtyards and the atrium.
The building materials in the atmosphere have been tested for their ecological safety.

In the rental areas, thermoactive ceilings, which were combined with a geothermal system for cooling and heating, ensure a high level of comfort. IPJ created the energy certificate for the building awarded DGNB silver and helped to optimally set up the control system using a dynamic simulation model with over 200 zones.

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Finanz Informatik, Frankfurt / Main

The six-storey glazed hall of today’s Frankfurt headquarters of Finanz Informatik presented a special planning challenge. Based on a flow analysis, the IPJ engineering company developed a solution that ensured a very good indoor climate all year round and also significantly reduced heating costs.

The building of Finanz Informatik on Theodor-Heuss-Allee in Frankfurt attracts attention with its harmonious ensemble of four white and glass cuboids. In the skyscraper and in the two office blocks, flush-fitting box windows and pure white cladding form an elegant shell.

The six-storey glazed hall was a particular planning challenge. Based on a flow analysis, the IPJ engineering company developed a solution that ensured a very good indoor climate all year round and also significantly reduced heating costs. Another unusual question arose with the glass elevator shaft of the high-rise. Here we were able to develop simple solutions that provide pleasant comfort in the glass cabin in summer and winter.

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Cubus am Seestern, Düsseldorf

The Cubus Seetstern office building is a building with an innovative double facade that can react to the outside temperature. The effectiveness of the double facade was checked and optimized by our simulations. The facade meets the high demands for comfort and enables high energy savings.

The facade adapts to the weather: it opens and closes automatically. In summer no overheating can occur because the outer pane can open up to its full height. The facade thus imitates processes from nature, such as ruffled plumage or the opening and closing of flowers.