Impacts of climate change upon cooling and heating energy demand of office buildings in Vienna, Austria

Berger, Tania; Amann, Christoph; Formayer, Herbert; Korjenić, Azra; Pospischal, Bernhard; Neururer, Christoph; Smutny, Roman

doi:10.1016/j.enbuild.2014.03.084

Cited by 99 publications

(54 citation statements)

References 13 publications

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“…In a previous study [1] the authors simulated 9 sample buildings with different constructions (and hence different thermal properties and performances) in thermal simulation under the appliance of future climate data sets taking predicted climate change into account. These generally yielded increasing cooling energy demands while heating demands were diminished in all buildings.…”

Section: Introductionmentioning

confidence: 99%

Impacts of external insulation and reduced internal heat loads upon energy demand of offices in the context of climate change in Vienna, Austria

Berger

Amann

Formayer

et al. 2016

Journal of Building Engineering

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Section: Introductionmentioning

confidence: 99%

Impacts of external insulation and reduced internal heat loads upon energy demand of offices in the context of climate change in Vienna, Austria

Berger

Amann

Formayer

et al. 2016

Journal of Building Engineering

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“…Several performance evaluations of lowenergy buildings under different climate contexts suggest high cooling demands and overheating risks (Badescu et al 2010;Mlakar and Štrancar 2011;Rohdin et al 2014;Tabatabaei Sameni et al 2015). Studies that have explored the impact of climate change on the heating and cooling demands of buildings in different climate contexts show trends of decreasing heating and increasing cooling demands under climate change (Berger et al 2014;Dodoo and Gustavsson 2016;Wang and Chen 2014). Some studies have analysed the implications of different building design strategies in the context of climate change.…”

Section: Introductionmentioning

confidence: 99%

Design strategies and measures to minimise operation energy use for passive houses under different climate scenarios

2018

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Here, the implications of different design strategies and measures in minimising the heating and cooling demands of a multi-storey residential building, designed to the passive house criteria in Southern Sweden are analysed under different climate change scenarios. The analyses are conducted for recent (1996)(1997)(1998)(1999)(2000)(2001)(2002)(2003)(2004)(2005) and future climate periods of 2050-2059 and 2090-2099 based on the Representative Concentration Pathway scenarios, downscaled to conditions in Southern Sweden. The considered design strategies and measures encompass efficient household equipment and technical installations, bypass of ventilation heat recovery unit, solar shading of windows, window size and properties, building orientation and mechanical cooling. Results show that space heating demand reduces, while cooling demand as well as risk of overheating increases under future climate scenarios. The most important design strategies and measures are efficient household equipment and technical installations, solar shading, bypass of ventilation heat recovery unit and window U-values and g-values. Total annual final energy demand decreased by 40-51%, and overheating is avoided or significantly reduced under the considered climate scenarios when all the strategies are implemented. Overall, the total annual primary energy use for operation decreased by 42-54%. This study emphasises the importance of considering different design strategies and measures in minimising the operation energy use and potential risks of overheating in lowenergy residential buildings under future climates.

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“…Different heat load patterns from the customer side together with climate change and global warming [35,36] can significantly decrease the profitability of energy supply units in DH systems. As stated in [36], a good practice consists of designing the CHP plant according to the minimum heat demand.…”

Section: Introductionmentioning

confidence: 99%

Implementation of CCPP for energy supply of future building stock

Tereshchenko

Nord

2015

Applied Energy

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and Process Engineering, Kolbjørn Hejes vei 1d, NO-7491 Trondheim, Norway h i g h l i g h t sSensitivity analysis was performed under changeable heat demand profiles. Results found high dependency of plant performance from heat load in DH system. CCPP as the most energy efficient conversion plant is suitable for heat supply of high heat density areas. CCPP operate with difficulties in energy supply of low heat density areas. The power production in CCPP is not influenced by the supply temperature control. a b s t r a c tEuropean Directive 2010/31/EU stated that by the end of 2020 all new buildings should be nearly Zero-Energy Buildings (nZEB). Since such buildings require a low quantity of energy for heating, they can utilize energy from the return line of a District Heating (DH) system. Further, this new type of buildings can successfully be integrated into the fourth generation of heat distribution technology, which is the new trend in the DH industry. On the other hand, existing building stock has a service lifetime of around 50 years, indicating that the required supply temperature in the DH system cannot be lowered beneath a certain level. Hereafter, together with new types of buildings and different policies, this could lead to changes in heat demand profiles of the DH system.The above-mentioned situation in the building market will lead to changes in heat load profiles and unavoidably influence the performance indicators of energy conversion units. Therefore, the focus in this paper was devoted to operation analysis of ethanol-based a Combined Heat and Power (CHP) plant with combined cycle technology under changeable demand conditions and different temperature levels in the DH system.In this paper different temperature levels of the DH system together with two temperature control strategies were considered. Further, the analysis included different heat demand profiles. The analysis was performed in Aspen HYSYS simulation software and data post processing was made by MATLAB. The results found that effective plant operation is highly dependent on heat load profile. Temperature control strategies did not induce a significant change in overall power production in CHP. The decrease in the supply temperature did not show a significant impact on plant performance. However, increase in temperature difference between supply and return lines led to higher power production and better overall plant performance. Further, it was concluded that it is rather difficult to operate CCPP connected to low energy building stock. This means that the CCPP is suitable for high-density heat areas, while it has poor energy performance indicators in low heat density areas.

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Impacts of climate change upon cooling and heating energy demand of office buildings in Vienna, Austria

Cited by 99 publications

References 13 publications

Impacts of external insulation and reduced internal heat loads upon energy demand of offices in the context of climate change in Vienna, Austria

Impacts of external insulation and reduced internal heat loads upon energy demand of offices in the context of climate change in Vienna, Austria

Design strategies and measures to minimise operation energy use for passive houses under different climate scenarios

Implementation of CCPP for energy supply of future building stock

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