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Neolepenism can represent a new type of energy efficient architecture that can respond to the challenges of sustainable development. Designing energy-efficient forms can be one of the design strategies for low-energy and passive houses. Of all the geometric bodies, the sphere has the smallest ratio of surface and volume, but it is not used in the performance of objects due to the limited application. The cube can be considered as the optimal form of object with which objects of other geometric shapes should be compared. In geometry, there are a number of shapes that are compact in between the ball and the cube, and some of them are usable for housing. Neolepenism presupposes the shape of a building object inspired by the prehistoric architecture of the Lepenski Vir culture. Remains of the architecture of prehistoric settlements Lepenski Vir and Padina – Gospodjin Vir, which were on the right bank of the Danube in the Djerdap Gorge (Republic of Serbia), represent the remains of energy-efficient architecture, which the author had already written before. It turned out that during the construction of prehistoric houses, the thermal comfort in them was taken into account: about the compactness of shapes, orientation, aerodynamics of the shape, digging, plant environment and other. These architectures control the flows of energy. It takes into account the optimal orientation of the houses in terms of meeting the needs for heating and cooling of these houses.
Due to the similarity of the climate conditions of Lepenski Vir and Belgrade, the positive experiences of this prehistoric architecture have been improved and perfected, so the author proposes a new form of a building object, based on the principles of energy efficiency, and inspired by the architecture of Lepenski Vir. There are several variants of this form. The asymmetry of the shape contributes to the reduction of ventilation losses, as well as the greater possibility of applying passive solar architecture. A flat roof version allows the installation of a green roof and the use of RES, i.e. solar panels. It is recommended to mainly be eastern orientations of this object. The form of energy efficient house, which is copyrighted, can significantly contribute to energy savings, reduction of greenhouse gases emissions, and considerable savings in construction material and thermal insulation.
About the author: Nenad B. Miloradović
Nenad B. Miloradović was born in 1963 in Belgrade, where he graduated from the Faculty of mechanical engineering of the University of Belgrade, Department for Thermal engineering, in 1987. He passed his professional exam in 1994. Also, he completed his specialist post-graduate studies at the Faculty of organizational sciences in Belgrade, Department for Internet technologies, in 2004. He passed exams for the UNESCO-ENEA certificate for renewable energy and sustainable development in 2009.
Since 1988 he has been working with the Public Utility Company Beogradske elektrane (Belgrade Power Plants) – district heating company in Belgrade, in the capacity of an engineer for distribution of thermal energy for all the time. He has worked in three heating areas in Belgrade so far: Cerak, Miljakovac and Banovo Brdo. The job includes thermal energy delivery and supervising of house heating installations and reconstructions of heating substations and pipelines. He has been involved in numerous design projects and composing of technical documentation for all heating areas of those heating plants.
The more important projects
Between 2006 and 2009 he was in the capacity of an associate engineer in the project Research of possibilities and feasibility of substitution of fossil fuels with solar energy in production of domestic hot water in power plant Cerak – Belgrade, which was conducted within the National Energy Efficiency Programme (NEEP). Also, in 2008, he was involved in modernization of primary thermal substations in the heating areas of sector Cerak in Belgrade (funded from an EBRD loan). Since 2010, he has participated in implementation of the study Mobile hybrid wind – solar system in the territory of the City of Belgrade, according to the Protocol signed by Energy Administration of the City of Belgrade, Faculty of electrical engineering from Belgrade and PUC Beogradske elektrane.
Publications, awards and patents
Mr. Miloradović has published the book in Serbian entitled: THERMAL ASPECTS OF BUILDING CONSTRUCTION – BACKGROUND AND PERSPECTIVES (Supplement to sustainable development) [TERMIČKI ASPEKTI GRADNJE KUĆA – ISTORIJAT I PERSPEKTIVE (Prilog održivom razvoju)]. It was published by Građevinska knjiga, Belgrade (Serbia) in 2009. Reviewers of the book were architect PhD Mila Pucar and mechanical engineer Prof. PhD Branislav Todorović. Although thermal engineers can contribute to solving of energy efficiency issues to the largest extent, it is also necessary to establish cooperation primarily with architects, in order to achieve integrated designing of new, low energy buildings.
He has participated with his presentations in about 20 International congresses of KGH (HVAC&R) in Belgrade. Mr. Miloradović has also published a dozen papers in Journal KGH and in 2016 he received KGH Medal for his contribution. At the Opening ceremony on 4th December 2019 at Jubilee 50th KGH International Congress and Exhibition in Belgrade he received the special acknowledgment for his contribution to the KGH Congress and development of profession from 1970 to 2019. Also, at this Congress he had presentation “Neolepenism as a type of energy efficient architecture” and exhibited the small Neolepenism house model of this new architecture.
Mr. Miloradović has written about 50 papers mostly in the area of thermal engineering (including the REHVA Journal – the Journal of Federation of European Heating, Ventilation and Air Conditioning Associations). It includes also a papers in magazine “Architecture and Urbanism” (Belgrade, Serbia in 2006.) and in Proceedings of International Conference SUSTAINABLE SPATIAL DEVELOPMENT OF CITIES (Belgrade, Serbia in 2008.). In 2010, based on his suggestions published in the article “Low Energy Buildings – Bioclimatic Improvements Suitable for Belgrade“, (Architecture and Urbanism, issue 18-19/2006), young architects from Belgrade Ksenija Bunjak and Nikola Aleksić, made an animation of the Supernatural ECO Pavilion.
In 2012, Mr. Miloradović was a contributor and author of articles for Eco-House Magazine (Ekokuća magazin) in Serbian language. The magazine deals with the popularity of environmental and healthy lifestyle topics. The editor is Mr. Vladimir Lovrić, the architect.
He authorized and protected copyrighted a form of an energy efficient house as a type of industrial design at the Intellectual Property Office of the Republic of Serbia, through which an application for its International protection was also submitted and received.
Lectures and public appearances
Mr. Miloradović had a dozen lectures, mostly in Serbian Chamber of engineers, ASHRAE Danube Chapter meetings in Timisoara (Romania) and Serbian Chamber of Commerce. Also, with his topics he was a guest in several shows on Serbian Internet radio 2M and had a presentations in prehistoric archeological school „Sedmorečje“ in Belgrade.
The statement of archeologist Dragoslav Srejović
The archeologist Dragoslav Srejović, who discovered the site Lepenski Vir, before he died, signed to the author, Nenad B. Miloradović the statement that he had read his preliminary communication and called on organizations involved in solar energy research to support his work in order to better explanation findings at Lepenski Vir. Archeologist Dragoslav Srejović was the vice president of Serbian Academy of Science and Art (SASA) in that time and he died on 29. Nov 1996.