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04 September 2019 | Story Leonie Bolleurs | Photo Charl Devenish
Jon Jacobson
Delivering the 31st Sophia Gray Memorial Lecture and Exhibition in Bloemfontein, was Jon Jacobson from Metropolis Design in Cape Town.

What is inside and what is outside? What is coming alive in the light? Minimalism. Hugeness. Shadows. Soft. Art. Complex. Conversation. Ambiguity. Clarity. All phrases and words used by the most recent Sophia Gray laureate, Jon Jacobson from Metropolis Design in Cape Town, to describe aspects of his work.

He delivered the 31st Sophia Gray memorial lecture in Bloemfontein. The name of his lecture at this prestigious event, organised by the UUFS Department of Architecture, was in [de] finite. Jacobson is the first graduate in the department’s MArch with Design.

Nature plays a big role in many of his projects, with a blurred distinction between the inside and the outside of the structures he builds. His designs fulfil the desire of a union with nature. 

A detailed investigation

Jacobson creates places and spaces to celebrate being. “Architecture is undeniably art, but it is also embodied in the completeness of the lived moment,” he says. 

Every project starts with a detailed investigation. “What social theory will we engage with? How progressive is it? What attitude will we take to the environment, to the theory of family? What other personal concerns will we be worried about? It is important to engage critically with this information. Important to build a philosophical base for each project,” says Jacobson.

He also believes it is important to consciously ensure that form follows idea with the same intensity that it follows function and that it does not blindly follow other form. 

At Metropolis, Jon and his team are client centred in their approach to design. Jon explains the process: “Some of the content is brought from the client’s personal and social aspiration and some from contemporary architecture culture, but the most potent component is the hidden set of ideas that emerge from our own engagements with the living world such as popular science, geology, art, music, literature, philosophy, theology, mysticism, and many others. And this emerges in the hidden sense of the word, in its architecture content.”

Content approach to design

In house design, Jon categorises the content that informs the architecture of the house: content pertaining to the individual, their philosophy, values and beliefs, content derived from culture, architecture and the arts, passion, religion, politics, and content referring to the natural world and its processes. Content from each of these spheres is present in any of his work. 

Jon says a major implication of a content approach to design is that it requires a design framework that is largely operative at a level of idea rather than at the level of form. This contributes to creating architecture rather than just buildings. 

His design method allows conscious control over the relationship between the ideas, the forms, and the poetics of the projects. “And at any point in the building process, it is possible to trace back and to critically assess whether any particular form is aligning with the core ideas of the project,” Jon indicates. 

Jon’s first taste of grappling with the infinite of architecture was with a garden pavilion he built for rest and relaxation. “For the first time I felt that we integrated planning, content, sight, programme, structure, and materiality into one unified whole that was expressed with a minimum of means and that was more than just the sum of its part,” he states.

He strongly believes that the individual is at the centre of every architectural project. He says the belief systems, type of social needs, family dynamics, physical habits, and spatial practices of their clients need to be investigated in detail in order to facilitate a meaningful spatial experience.

He continues: “We see our role as designers to saturate the environment with the meaning that enhances our clients’ daily experience in every possible way – from the ergonomic and the practical to the spiritual. In the process, the logics and tradition of architecture and the ego of the architect sometimes need to make way for human need and aspiration.”


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Researcher part of project aimed at producing third-generation biofuels from microalgae in Germany
2016-05-09

Description: Novagreen bioreactor  Tags: Novagreen bioreactor

Some of the researchers and technicians among the tubes of the Novagreen bioreactor (Prof Grobbelaar on left)

A researcher from the University of the Free State (UFS), Prof Johan Grobbelaar, was invited to join a group of scientists recently at the Institute for Bio- and Geo-Sciences of the Research Centre Jülich, in Germany, where microalgae are used for lipid (oil) production, and then converted to kerosene for the aviation industry.

The project is probably the first of its kind to address bio-fuel production from microalgae on such a large scale.  

“The potential of algae as a fuel source is undisputed, because it was these photoautotrophic micro-organisms that were fixing sunlight energy into lipids for millions of years, generating the petroleum reserves that modern human civilisation uses today.  However, these reserves are finite, so the challenge is marrying biology with technology to produce economically-competitive fuels without harming the environment and compromising our food security.  The fundamental ability that microalgae have to produce energy-rich biomass from CO2, nutrients, and sunlight through photosynthesis for biofuels, is commonly referred to as the Third-Generation Biofuels (3G),” said Prof Grobbelaar.

The key compounds used for bio-diesel and kerosene production are the lipids and, more particularly, the triacylglyserols commonly referred to as TAGs.  These lipids, once extracted, need to be trans-esterified for biodiesel, while a further “cracking” step is required to produce kerosene.  Microalgae can store energy as lipids and/or carbohydrates. However, for biofuels, microalgae with high TAG contents are required.  A number of such algae have been isolated, and lipid contents of up to 60% have been achieved.

According to Prof Grobbelaar, the challenge is large-scale, high-volume production, since it is easy to manipulate growth conditions in the laboratory for experimental purposes.  

The AUFWIND project (AUFWIND, a German term for up-current, or new impetus) in Germany consists of three different commercially-available photobioreactor types, which are being compared for lipid production.

Description: Lipid rich chlorella Tags: Lipid rich chlorella

Manipulated Chlorella with high lipid contents (yellow) in the Novagreen bioreactor

The photobioreactors each occupies 500 m2 of land surface area, are situated next to one another, and can be monitored continuously.  The three systems are from Novagreen, IGV, and Phytolutions.  The Novagreen photobioreactor is housed in a glass house, and consist of interconnected vertical plastic tubes roughly 150 mm in diameter. The Phytolutions system is outdoors, and consists of curtains of vertical plastic tubes with a diameter of about 90 mm.  The most ambitious photobioreactor is from IGV, and consists of horizontally-layered nets housed in a plastic growth hall, where the algae are sprayed over the nets, and allowed to grow while dripping from one net to the next.

Prof Grobbelaar’s main task was to manipulate growth conditions in such a way that the microalgae converted their stored energy into lipids, and to establish protocols to run the various photobioreactors. This was accomplished in just over two months of intensive experimentation, and included modifications to the designs of the photobioreactors, the microalgal strain selection, and the replacement of the nutrient broth with a so-called balanced one.

Prof Grobbelaar has no illusions regarding the economic feasibility of the project.  However, with continued research, optimisation, and utilisation of waste resources, it is highly likely that the first long-haul flights using microalgal-derived kerosene will be possible in the not-too-distant future.

Prof Grobbelaar from the Department of Plant Sciences, although partly retired, still serves on the editorial boards of several journals. He is also involved with the examining of PhDs, many of them from abroad.  In addition, he assisted the Technology Innovation Agency of South Africa in the formulation of an algae-biotechnology and training centre.  “The chances are good that such a centre will be established in Upington, in the Northern Cape,” Prof Grobbelaar said.

 

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