Please login first
Ranka Junge   Professor  Institute, Department or Faculty Head 
Timeline See timeline
Ranka Junge published an article in April 2018.
Top co-authors See all
Maurizio Borin

72 shared publications

Morris Villarroel

50 shared publications

Ignacio Plaza

40 shared publications

Sebastian Jaenicke

29 shared publications

Frank Liebisch

23 shared publications

14
Publications
19
Reads
0
Downloads
19
Citations
Publication Record
Distribution of Articles published per year 
(2009 - 2018)
Total number of journals
published in
 
8
 
Publications See all
Article 1 Read 1 Citation Analysis of aquaponics as an emerging technological innovation system Bettina König, Judith Janker, Tilman Reinhardt, Morris Villa... Published: 01 April 2018
Journal of Cleaner Production, doi: 10.1016/j.jclepro.2018.01.037
DOI See at publisher website
Article 1 Read 0 Citations Life cycle assessment of a micro aquaponic system for educational purposes built using recovered material Carmelo Maucieri, Andrea A. Forchino, Carlo Nicoletto, Ranka... Published: 01 January 2018
Journal of Cleaner Production, doi: 10.1016/j.jclepro.2017.11.097
DOI See at publisher website
ABS Show/hide abstract
Aquaponics is not only a forward-looking technology but it has also been proposed as a tool for teaching natural sciences at all school levels, from primary school to university. Life cycle assessment (LCA) has become a widely accepted method of evaluating the environmental impact of products and services. In this context, the aims of this paper were:1) to create a low-price AP system for possible use as didactic tool using recovered material; 2) to evaluate the environmental impact of a micro AP model (1.5 m2) through LCA analysis; 3) to verify whether this micro AP model is representative of full-scale AP systems (>50 m2) in terms of water quality and water consumption. Both, the water quality and the average daily water consumption of our system were in line with data reported in literature for larger aquaponics. LCA shows that materials and energy flows linked to the system management practices and energy consumption principally contribute to environmental impacts. The cumulative annual energy demand of micro aquaponic system was 1040.5 kWh; assuming that this system was built for a class of 25 students, the energy consumption of the learning activity using the proposed micro aquaponic system would be 41.6 kWh student−1 year−1. The results showed that the micro aquaponic system reliably mimics a full-scale unit and that it is a teaching tool with a relatively low environmental impact.
Article 1 Read 0 Citations EU policies: New opportunities for aquaponics Kyra Hoevenaars, Ranka Junge, Tamas Bardocz, Matej Leskovec Published: 01 January 2018
Ecocycles, doi: 10.19040/ecocycles.v4i1.87
DOI See at publisher website
Article 2 Reads 1 Citation Energy Toolbox—Framework for the Development of a Tool for the Primary Design of Zero Emission Buildings in European and... Christoph Koller, Max Jacques Talmon-Gros, Ranka Junge, Thor... Published: 05 December 2017
Sustainability, doi: 10.3390/su9122244
DOI See at publisher website
ABS Show/hide abstract
This paper discusses the framework for the development of an Energy Toolbox (ETB). The aim of the ETB is to support the design of domestic Zero Emission Buildings (ZEBs), according to the concept of net zero-energy buildings during the early architectural design and planning phases. The ETB concept is based on the calculation of the energy demand for heating, cooling, lighting, and appliances. Based on a building’s energy demand, technologies for the onsite conversion and production of the specific forms and quantities of final and primary energy by means of renewable energy carriers can be identified. The calculations of the ETB are based on the building envelope properties of a primary building design, as well as the physical and climate parameters required for the calculation of heat transfer coefficients, heat gains, and heat losses. The ETB enables the selection and rough dimensioning of technologies and systems to meet, and, wherever possible, reduce the thermal and electric energy demand of a building. The technologies included comprise green facades, adaptable dynamic lighting, shading devices, heat pumps, photovoltaic generators, solar thermal collectors, adiabatic cooling, and thermal storage. The ETB facilitates the balancing of the energy consumption and the production of renewable energies of a primary building design.
Article 3 Reads 0 Citations Hydroponic systems and water management in aquaponics: a review Carmelo Maucieri, Carlo Nicoletto, Ranka Junge, Zala Schmaut... Published: 01 September 2017
Italian Journal of Agronomy, doi: 10.4081/ija.2017.1012
DOI See at publisher website
ABS Show/hide abstract
Aquaponics, the integrated multi-trophic fish and plants production in quasi-closed recirculating system, is one of the newest sustainable food production systems. The hydroponic component of the AP directly influences water quality (in turn influencing fish growth and health), and water consumption (through evapotranspiration) of the entire system. In order to assess the role of the design and the management of the hydroponic component on the overall performance, and water consumption of the aquaponics, 122 papers published from 1979 to 2017 were reviewed. Although no unequivocal results were found, the nutrient film technique appears in several aspects less efficient than medium-based or floating raft hydroponics. The best system performance in terms of fish and plant growth, and the highest nutrient removal from water was achieved at water flow between 0.8 L min-1 and 8.0 L min-1. Data on water consumption of aquaponics are scarce, and no correlation between the ratio of hydroponic unit surface/fish tank volume and the system water loss was found. However, daily water loss was positively correlated with the hydroponic surface/fish tank volume ratio if the same experimental conditions and/or systems were compared. The plant species grown in hydroponics influenced the daily water loss in aquaponics, whereas no effect was exerted by the water flow (reciprocating flood/drain cycle or constant flow) or type (medium-based, floating or nutrient film technique) of hydroponics.
Article 2 Reads 5 Citations Strategic Points in Aquaponics Ranka Junge, Bettina König, Morris Villarroel, Tamas Komives... Published: 03 March 2017
Water, doi: 10.3390/w9030182
DOI See at publisher website
ABS Show/hide abstract
Global environmental, social and economic challenges drive the need for new and improved solutions for food production and consumption. Food production within a sustainability corridor requires innovations exceeding traditional paradigms, acknowledging the complexity arising from sustainability. However, there is a lack of knowledge about how to direct further activities, to develop technologies as potential solutions for questions related to climate change, loss of soil fertility and biodiversity, scarcity of resources, and shortage of drinking water. One approach that promises to address these problems is controlled environment agriculture. Aquaponics (AP) combines two technologies: recirculation aquaculture systems (RAS) and hydroponics (plant production in water, without soil) in a closed-loop system. One challenge to the development of this technology is the conversion of the toxic ammonium produced by the fish into nitrate, via bacteria in a biofilter, to provide nitrogen to the plants. However, as this Special Issue shows, there are many other challenges that need to be addressed if the goal of the technology is to contribute to more sustainable food production systems.