Future performance evaluation of PCM integrated buildings under changing climate

Download
2022-10-11
The high energy consumption and associated carbon emissions due to the heating and cooling of buildings create a heavy environmental burden. One of the cost-efficient solutions to reduce the heating and cooling demands is to incorporate phase change materials (PCMs) in the building components, increasing the thermal mass of the building and providing latent heat thermal storage. However, the rising temperatures over the years will alter the effectiveness of PCM in building envelopes. In this study, four cities in Turkey with different climatic characteristics were selected. For each city, future weather files representing the climatic conditions of 2050 and 2080 were generated from the current weather data using CCWorldWeatherGen. A typical office building that utilizes gypsum wallboards was modeled with EnergyPlus as a reference case. Alternative energy models were generated by modifying the wallboard compositions (PCM melting temperature: 19-27°C). The building’s annual heating and cooling energy demands were calculated for each city, year, and wallboard alternative. Generated data were analyzed to evaluate the future efficiency of the wallboards with the changing climate over the years in order to maximize the long-term performance gains from PCM incorporating wallboards. The results showed that the selection of the optimum PCM melting temperature of a location should not only depend on thermo-physical and layer properties of the PCM wallboard as the optimum melting temperature of the PCM is subject to change with rising temperatures. The impact of climate change should be considered to fully evaluate the long-term performance of the PCM wallboard in terms of energy use and CO2 emissions.
IOP Conference Series: Earth and Environmental Science, Volume 1085, SBE22Delft - Innovations for the Urban Energy Transition: Preparing for the European Renovation Wave

Suggestions

A data-driven approach for predicting solar energy potential of buildings in urban fabric
Duran, Ayça; Gürsel Dino, İpek; Department of Architecture (2022-7)
Energy-efficient buildings that use clean and sustainable energy sources are urgently needed to reduce the environmental impact of buildings and mitigate climate change in cities. Buildings have great potential in harvesting solar energy by their solar exposure capacity. Developments in PV technologies also encourage the integration of PV systems into architectural applications. However, urban contexts can limit solar energy generation capacity of buildings by shading building envelopes and reducing availab...
How to Account for Uncertainty in Soil Properties in Offshore Monopile Design by Means of Probabilistic Analysis
Orakcı, Olgu; Huvaj Sarıhan, Nejan; Anogiatis, Georgios; Department of Civil Engineering (2022-2-28)
Offshore wind turbines gain more importance worldwide as they contribute to reduce greenhouse gas emissions and achieve a low-carbon future producing sustainable energy. Monopile is the most commonly employed foundation type for offshore wind turbines. Monopile design requires a comprehensive assessment of seabed soil properties with depth. However, seabed soils involve inherent variability and uncertainty in material properties. Modifications to deterministic design approaches are suggested in the literatu...
Development of silica fume-based geopolymer foams
Shakouri, Sahra; Bayer, Özgür; Erdoğan, Sinan Turhan (Elsevier BV, 2020-11-01)
Thermal insulation materials are critical for reducing the energy consumption and carbon emissions associated with buildings. A good insulation material must not only have low density and sufficient mechanical properties but also resist high temperatures and fires. In addition, its production process must be simple and inexpensive. This study describes the production of very low density (>85 kg/m(3)) inorganic foams with high porosity (<94%). Silica fume and NaOH solutions are mixed to prepare a geopolymer ...
A methodology for evaluating environmental co-benefits in the transport sector: application to the Delhi metro
Doll, Christopher N. H.; Balaban, Osman (Elsevier BV, 2013-11-01)
This paper presents a methodology to measure the environmental co-benefits of transport initiatives, defined here as carbon emissions in conjunction with local air pollution. An evaluation tool was developed and then tested on the case of the Delhi metro. The metro is an extensive rail project spanning the Indian capital, which is also the world's first rail based Clean Development Mechanism (CDM) project. However, it has also been a flashpoint in urban policy-making in the city in recent years. This analys...
A techno-economic feasibility study of a gridconnected hybrid solar pv-wind power generation system in Zimbabwe
Samu, Remember; Fahrioğlu, Murat; Sustainable Environment and Energy Systems (2019-1)
The depletion of fossil fuel resources on a worldwide basis and an increase in greenhouse gas emissions and climate change as a whole have caused an urgent search for alternative sustainable energy sources to cater for the rising energy demands. The demand of energy is rapidly growing in both developing and developed nations thus making hybrid renewable energy power systems (RES), comprising Solar Photovoltaic (PV) and wind energy to be chosen as one of the best alternatives. However, on the downside, these...
Citation Formats
T. Tamer, D. K. Baker, İ. Gürsel Dino, and Ç. Akgül, “Future performance evaluation of PCM integrated buildings under changing climate,” presented at the IOP Conference Series: Earth and Environmental Science, Volume 1085, SBE22Delft - Innovations for the Urban Energy Transition: Preparing for the European Renovation Wave, Zuid-Holland, Hollanda, 2022, Accessed: 00, 2022. [Online]. Available: https://hdl.handle.net/11511/101094.