scholarly journals Climate Change Effects on Belgian Households: A Case Study of a Nearly Zero Energy Building

Energies ◽  
2020 ◽  
Vol 13 (20) ◽  
pp. 5357
Author(s):  
Shady Attia ◽  
Camille Gobin
Keyword(s):  
Climate Change ◽  
Thermal Comfort ◽  
Thermal Adaptation ◽  
Residential Building ◽  
Zero Energy ◽  
Reference Case ◽  
Intergovernmental Panel ◽  
Zero Energy Building ◽  
The Impact

Overheating in residential building is a challenging problem that causes thermal discomfort, productivity reduction, and health problems. This paper aims to assess the climate change impact on thermal comfort in a Belgian reference case. The case study represents a nearly zero energy building that operates without active cooling during summer. The study quantifies the impact of climate change on overheating risks using three representative concentration pathway (RCP) trajectories for greenhouse gas concentration adopted by the Intergovernmental Panel on Climate Change (IPCC). Building performance analysis is carried out using a multizone dynamic simulation program EnergyPlus. The results show that bioclimatic and thermal adaptation strategies, including adaptive thermal comfort models, cannot suppress the effect of global warming. By 2050, zero energy buildings will be vulnerable to overheating.

scholarly journals Energy-Efficient Envelope Design for Apartment Blocks—Case Study of A Residential Building in Spain

2021 ◽  
Vol 11 (1) ◽  
pp. 433
Author(s):  
Francisco José Sánchez de la Flor ◽  
Enrique Ángel Rodríguez Jara ◽  
Álvaro Ruiz Pardo ◽  
José Manuel Salmerón Lissén ◽  
Maria Kolokotroni
Keyword(s):  
Optimization Problem ◽  
Residential Building ◽  
Developed Countries ◽  
Practical Case ◽  
Zero Energy ◽  
Building Stock ◽  
Existing Building ◽  
Zero Energy Building ◽  
Optimum Solution

Buildings are known to be responsible for about a third of energy consumption in developed countries. This situation, together with the fact that the existing building stock is being renovated at a very slow pace, makes it crucial to focus on the energy retrofitting of buildings as the only way to reduce their contribution to these energy consumptions and the consequences derived from them in terms of pollution and climate change. The same level of insulation and the same type of windows is usually proposed for all dwellings in a building block. This article shows that since the improvements required by each dwelling in the same block are different, the proposed solution must also be different. The methodology is proposed for a practical case consisting of an apartment block in Cádiz, a demonstration building of the European RECO2ST project. To achieve the optimum solution for each case, a multi-objective optimization problem is solved: to minimize the annual heating demand of the building and the standard deviation of the annual demand of the different dwellings. Thanks to the use of the proposed methodology, it is possible to bring the building to a Nearly Zero Energy Building (NZEB) level, while avoiding excessive insulation that causes overheating in summer.

scholarly journals Modern Concepts of Energy-Efficient Civil and Residential Buildings. Case Study: Analysis of a Residential Building According to Nzeb Criteria

2021 ◽  
Vol 21 (1) ◽  
pp. 39-45
Author(s):  
A. Vasiliu ◽  
Otilia Nedelcu ◽  
I. C. Sălişteanu ◽  
O. Magdun
Keyword(s):  
Housing Stock ◽  
Residential Buildings ◽  
Residential Building ◽  
Low Energy ◽  
Zero Energy ◽  
Passive Construction ◽  
Zero Energy Building ◽  
Minimum Requirements ◽  
Oil Crisis

Abstract The oil crisis, the measures taken because of global warming caused by greenhouse gas emissions, the ecological actions carried out globally and the technical progress in the fields of electronics, energy, IT and telecommunications have led to the emergence Passive House concepts in the construction sector, of Passive Solar Building (passive construction based on solar energy), of Net Zero-Energy Building NZEB, of Plus Energy Building, of nearly Zero Energy Building nZEB, of Low-Energy Building, of Green House, of Zero Carbon House, of Smart House, of Healthy buildings and other equivalents or derivatives. In this paper, these concepts will be cross-debated and the measures adopted at EU level and the influences exerted on the Romanian legislation on the field of civil and residential constructions will be presented. Based on a case study, a residential construction will be characterized, representative of the current housing stock, in order to assess the degree of compliance with the minimum requirements of a house with low energy consumption, imposed by Romanian legislation in the field.

scholarly journals Effect of Climate Changes on Renewable Production in the Mediterranean Climate: Case Study of the Energy Retrofit for a Detached House

2021 ◽  
Vol 13 (16) ◽  
pp. 8793
Author(s):  
Rosa Francesca De Masi ◽  
Valentino Festa ◽  
Antonio Gigante ◽  
Margherita Mastellone ◽  
Silvia Ruggiero ◽  
...  
Keyword(s):  
Climate Change ◽  
Climate Changes ◽  
Single Family ◽  
Critical Approach ◽  
Building Stock ◽  
Intergovernmental Panel ◽  
Efficiency Measures ◽  
Detached House ◽  
The Impact

One of the strategies of the European Green Deal is the increment of renewable integration in the civil sector and the mitigation of the impact of climate change. With a statistical and critical approach, the paper analyzes these aspects by means of a case study simulated in a cooling dominated climate. It consists of a single-family house representative of the 1980s Italian building stock. Starting from data monitored between 2015 and 2020, a weather file was built with different methodologies. The first objective was the evaluation of how the method for selecting the solar radiation influences the prevision of photovoltaic productivity. Then, a sensitivity analysis was developed, by means of modified weather files according to representative pathways defined by the Intergovernmental Panel on Climate Change Fifth Assessment Report. The results indicate that the climate changes will bring an increment of photovoltaic productivity while the heating energy need will be reduced until 45% (e.g., in March) and the cooling energy need will be more than double compared with the current conditions. The traditional efficiency measures are not resilient because the increase of the cooling demand could be not balanced. The maximization of installed photovoltaic power is a solution for increasing the resilience. Indeed, going from 3.3 kWp to 6.9 kWp for the worst emission scenario, in a typical summer month (e.g., August), the self-consumption increases until 33% meanwhile the imported electricity passes from 28% to 17%.

Heat-related mortality under climate change and the impact of adaptation through air conditioning: A case study from Thessaloniki, Greece

2021 ◽  
pp. 111285
Author(s):  
Panayiotis Kouis ◽  
Kyriaki Psistaki ◽  
George Yiallouros ◽  
Antonis Michanikou ◽  
Maria G. Kakkoura ◽  
...  
Keyword(s):  
Climate Change ◽  
Air Conditioning ◽  
The Impact ◽  
Related Mortality

scholarly journals Potential Impacts of Future Climate Change Scenarios on Ground Subsidence

Water ◽  
2020 ◽  
Vol 12 (1) ◽  
pp. 219 ◽  
Author(s):  
Antonio-Juan Collados-Lara ◽  
David Pulido-Velazquez ◽  
Rosa María Mateos ◽  
Pablo Ezquerro
Keyword(s):  
Climate Change ◽  
Land Subsidence ◽  
Ground Subsidence ◽  
Lower Percentage ◽  
Future Climate Change ◽  
Climate Change Scenarios ◽  
Fine Grained ◽  
Fine Grained Material ◽  
The Impact

In this work, we developed a new method to assess the impact of climate change (CC) scenarios on land subsidence related to groundwater level depletion in detrital aquifers. The main goal of this work was to propose a parsimonious approach that could be applied for any case study. We also evaluated the methodology in a case study, the Vega de Granada aquifer (southern Spain). Historical subsidence rates were estimated using remote sensing techniques (differential interferometric synthetic aperture radar, DInSAR). Local CC scenarios were generated by applying a bias correction approach. An equifeasible ensemble of the generated projections from different climatic models was also proposed. A simple water balance approach was applied to assess CC impacts on lumped global drawdowns due to future potential rainfall recharge and pumping. CC impacts were propagated to drawdowns within piezometers by applying the global delta change observed with the lumped assessment. Regression models were employed to estimate the impacts of these drawdowns in terms of land subsidence, as well as to analyze the influence of the fine-grained material in the aquifer. The results showed that a more linear behavior was observed for the cases with lower percentage of fine-grained material. The mean increase of the maximum subsidence rates in the considered wells for the future horizon (2016–2045) and the Representative Concentration Pathway (RCP) scenario 8.5 was 54%. The main advantage of the proposed method is its applicability in cases with limited information. It is also appropriate for the study of wide areas to identify potential hot spots where more exhaustive analyses should be performed. The method will allow sustainable adaptation strategies in vulnerable areas during drought-critical periods to be assessed.

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