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Energy retrofitting of existing building stock has significant potential for the reduction of energy consumption and greenhouse gas emissions. Roughly half of the CO2 emissions from Czech building stock are estimated to be allocated to residential buildings. Approximately one-third of the Czech residential building stock have already been retrofitted, but retrofitting mostly takes place in large cities due to greater income. A favourable concept for the mass retrofitting of residential building stock, affordable even in low-income regions, was of interest. For a reference building, multi-criteria assessment of numerous retrofitting measures was performed. The calculation involved different building elements, materials, solutions, and energy-efficiency levels in combination with various heating systems. The assessment comprised environmental impact, represented by operational and embodied primary energy consumption and greenhouse gas emissions, and investment and operational costs using the annuity method. Analysis resulted in the identification of favourable retrofitting measures and showed that complex building retrofitting is advantageous from both a cost and an environmental point of view. The environmental burden could be decreased by approximately 10–30% even without photovoltaic installation, and costs per year could be decreased by around 40%.
Katerina Sojkova; Martin Volf; Antonin Lupisek; Roman Bolliger; Tomas Vachal. Selection of Favourable Concept of Energy Retrofitting Solution for Social Housing in the Czech Republic Based on Economic Parameters, Greenhouse Gases, and Primary Energy Consumption. Sustainability 2019, 11, 6482 .
AMA StyleKaterina Sojkova, Martin Volf, Antonin Lupisek, Roman Bolliger, Tomas Vachal. Selection of Favourable Concept of Energy Retrofitting Solution for Social Housing in the Czech Republic Based on Economic Parameters, Greenhouse Gases, and Primary Energy Consumption. Sustainability. 2019; 11 (22):6482.
Chicago/Turabian StyleKaterina Sojkova; Martin Volf; Antonin Lupisek; Roman Bolliger; Tomas Vachal. 2019. "Selection of Favourable Concept of Energy Retrofitting Solution for Social Housing in the Czech Republic Based on Economic Parameters, Greenhouse Gases, and Primary Energy Consumption." Sustainability 11, no. 22: 6482.
In 2013, a campus building in Prague, built more than 40 years ago, was partially refurbished. Its old curtain wall with very poor performance was completely removed and replaced by a new element façade of significantly higher quality, which meets today's recommendations concerning the energy efficiency. The comfort requirement was satisfied partially – the effect of overheating was almost entirely eliminated without the need of mechanical cooling. It was still necessary to improve the quality of ventilation. Therefore, a study on the possibility and effects of installing an additional ventilation system was conducted. As a pilot project, a complex solution of one selected floor was implemented. This solution is described and commented upon in this paper.
Jan Tywoniak; Kateřina Sojková. “Near-to-Zero-Energy Floor” in a Campus Building from 1971. Energy Procedia 2015, 78, 1069 -1074.
AMA StyleJan Tywoniak, Kateřina Sojková. “Near-to-Zero-Energy Floor” in a Campus Building from 1971. Energy Procedia. 2015; 78 ():1069-1074.
Chicago/Turabian StyleJan Tywoniak; Kateřina Sojková. 2015. "“Near-to-Zero-Energy Floor” in a Campus Building from 1971." Energy Procedia 78, no. : 1069-1074.
Kateřina Sojková. House in a Glasshouse – Impact of the Glasshouse on Thermal Performance of the House Using a Lumped Parameter Model. Energy Procedia 2015, 78, 2220 -2225.
AMA StyleKateřina Sojková. House in a Glasshouse – Impact of the Glasshouse on Thermal Performance of the House Using a Lumped Parameter Model. Energy Procedia. 2015; 78 ():2220-2225.
Chicago/Turabian StyleKateřina Sojková. 2015. "House in a Glasshouse – Impact of the Glasshouse on Thermal Performance of the House Using a Lumped Parameter Model." Energy Procedia 78, no. : 2220-2225.