scholarly journals Assessment of Daylight into the Residential Building According to the Floor Levels for Hot and Dry Climatic Zone

2019 ◽  
Vol 2 (2) ◽  
Author(s):  
Trupti Jagdeo Dabe
Keyword(s):  
Energy Consumption ◽  
Residential Building ◽  
Central India ◽  
Field Measurements ◽  
Building Design ◽  
The Other ◽  
Climatic Zone ◽  
Optimum Level ◽  
Simulation Experiments ◽  
Indoor Temperature

It is very important to use the daylight in the building design, which is allowed by the windows into the buildings, to reduce the energy consumption. However, on the other hand, the performance of daylight varies according to the floor levels of the building. This research focused on the investigation of the correlation between the performance of daylight and window areas according to floor levels through field measurements and simulation experiments in the residential building. The aim of this research is to derive the adequate window areas according to the floor levels with respect to the orientation of the residential building to achieve the optimum level of daylight and indoor temperature in the livable areas of a residential building. The case selected is residential building from Nagpur region, of Central India. It has a hot and dry climate. The evaluation of daylight level has been done with selected parameters like percentages of Carpet Area to Window Ratio (CAWR) and Orientation by using daylight metrics, namely Useful Daylight Illuminance (UDI) (with Daysim and Radiance analysis tools plug-in Ecotect 2011 software). The findings of this research are the adequate area of window according to floor levels with respect to the orientation in the livable areas of the residential building.

scholarly journals A Study of Design Variables in Daylight and Energy Performance in Residential Buildings under Hot Climates

Energies ◽  
2020 ◽  
Vol 13 (21) ◽  
pp. 5836
Author(s):  
Ali Mohammed AL-Dossary ◽  
Daeung Danny Kim
Keyword(s):  
Saudi Arabia ◽  
Energy Consumption ◽  
Residential Buildings ◽  
Residential Building ◽  
Building Design ◽  
Energy Performance ◽  
Total Energy Consumption ◽  
Design Variables ◽  
Slow Progress ◽  
Shading Devices

In Saudi Arabia, residential buildings are one of the major contributors to total energy consumption. Even though there are abundant natural resources, it is somewhat difficult to apply them to building designs, as design variables, due to slow progress and private issues in Saudi Arabia. Thus, the present study demonstrated the development of sustainable residential building design by examining the daylighting and energy performance with design variables. Focusing on the daylighting system, the design variables were chosen, including window-to-wall ratios (WWR), external shading devices, and types of glazing. The illuminance level by these design variables in a building was evaluated by using daylight metrics, such as spatial daylight autonomy and annual sunlight exposure. Moreover, the building energy consumption with these design variables was analyzed by using energy simulation. As a result, the daylighting was improved with the increase in WWRs and the tinted double glazing, while these design options can cause overheating in a residential building. Among types of glazing, the double pane windows with a low-E coating showed better energy performance. Based on the results, it is necessary to find the proper design variables that can balance the daylighting and energy performance in residential buildings in hot climates.

scholarly journals Energy performance diagnosis for the residential building façade in Algeria

2021 ◽  
Author(s):  
Messaouda Rais ◽  
Adel Boumerzoug ◽  
Balint Baranyai
Keyword(s):  
Energy Consumption ◽  
Residential Buildings ◽  
Residential Building ◽  
Building Design ◽  
Energy Performance ◽  
Simulation Software ◽  
Efficient Design ◽  
Design Standards ◽  
Quality Performance ◽  
Performance Diagnosis

AbstractAs it is clear, worldwide buildings are the largest consumer of the final energy consumption. In Algeria, it has been reported that 33% of the overall energy consumption was attributed to buildings. This is due to the design and constructional techniques of the residential buildings, which do not address the local climatic condition. To assess this situation, the study is focused on analyzing the existing residential buildings in Algeria, in terms of energy, thermal, daylight, and indoor air quality performance, using a dynamic simulation software. Typical building design in a hot and dry climate was selected. The results revealed that the existing residential buildings do not comply with the energy-efficient design standards. It was concluded that further strategies should be applied in this sector, in terms of building design, materials, and façade configuration.

A simulation-based multi-objective genetic optimization framework for efficient building design in early stages: application for Vietnam's hot and humid climates

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Thanh Truc Le Gia ◽  
Hoang-Anh Dang ◽  
Van-Binh Dinh ◽  
Minh Quan Tong ◽  
Trung Kien Nguyen ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Residential Building ◽  
Building Design ◽  
Energy Performance ◽  
Genetic Optimization ◽  
Trade Off ◽  
Content Type ◽  
Simulation Based ◽  
Hot And Humid Climates

PurposeIn many countries, innovation in building design for improving energy performance, reducing CO2 emissions and minimizing life cycle cost has received much attention for sustainable development. This paper investigates the importance of optimization tools for enhancing the design performance in the early stages of Vietnam's cooling-dominated buildings in hot and humid climates using an integrated building design approach.Design/methodology/approachThe methodology of this study exploits the non-dominated sorting genetic algorithm (NSGA-II) optimization algorithm coupled with building simulation to research a trade-off between the optimization of investment cost and energy consumption. Our approach focuses on the whole optimization problem of thermal envelope, glazing and energy systems from preliminary design phases. The methodology is then tested for a case study of a non-residential building located in Hanoi.FindingsThe results show a considerable improvement in design performance by our method compared to current building design. The optimal solutions present the trade-off between energy consumption and capital cost in the form of a Pareto front. This helps architects, engineers and investors make important decisions in the early design stages with a large view of impacts of all factors on energy performance and cost.Originality/valueThis is one of the original research to study integrated building design applying the simulation-based genetic optimization algorithm for cooling-dominated buildings in Vietnam. The case study in this article is for a non-residential building in the north of Vietnam but the methodology can also be applied to residential buildings and other regions.

The Design and Thermal Comfort Test for North Shannxi Green Cave Dwelling

2012 ◽  
Vol 174-177 ◽  
pp. 3207-3211
Author(s):  
Hong Xia Yang ◽  
Tie Hu Duan ◽  
Yan Hong Li
Keyword(s):  
Thermal Comfort ◽  
Delay Time ◽  
Residential Building ◽  
Building Design ◽  
Temperature Wave ◽  
Test Time ◽  
Seasonal Temperature ◽  
Indoor Temperature ◽  
Northern Shaanxi ◽  
Design Style

To overcome the traditional cave dwelling lacks, we have designed a green cave dwelling area with a safe structure, improved infrastructure, fluent ventilation, good light in northern Shaanxi, which inherited simple ecology in design for traditional cave, integrated modern residential building design style, and increased necessary sanitation. By compared a traditional cave, the results show that the indoor temperature 9°C between the peaks and valleys of Northern Green cave dwelling when the outside temperature difference is 24°C within the test time, and seasonal temperature wave delay time is about 12d. The thermal comfort same as the traditional cave dwellings’.

scholarly journals Window to wall ratio and orientation effects on thermal performance of residential building: A case of Butwal Sub-Metropolis

2021 ◽  
Vol 1 (1) ◽  
pp. 129-137
Author(s):  
Sanjaya Uprety ◽  
Shiva Kafley ◽  
Barsha Shrestha
Keyword(s):  
Energy Consumption ◽  
Thermal Performance ◽  
Residential Buildings ◽  
Residential Building ◽  
Building Design ◽  
Base Case ◽  
The South ◽  
Test Scenario ◽  
North East ◽  
The North

The orientation and glazed surface area used for windows in a building have significant effects on its indoor thermal comfort and overall energy consumption. The increasing use of glazed windows and lack of consideration of orientation in building design have become a major problem in warm and humid regions as windows cover sensitive skin areas for the exchange of energy leading to increased solar gain inside the building. This paper describes the effect of the varied ‘area ratio of glazed window to the wall for different building orientations’ on the thermal performance of the residential building in a warm humid climatic region of Nepal. A typical residential building located in Kalikanagr of Butwal, the fast-urbanizing sub-metropolis of Western Nepal, was selected for the study from 18 houses surveyed using the purposive sampling method. Nine varying values of Window to Wall Ratio (WWR) of glazed façade ranging from 0.1 to 0.9 with a constant increment of 0.1 in north and south façades, and the change in the building orientations were considered for the detailed study. Altogether eighty different test scenarios including base case scenarios were created and annual thermal energy consumption was computed for each test scenario using the Autodesk Ecotect Analysis, 2011. Findings from the study showed that the south orientation is the most appropriate compared to the north-east for all WWR to reduce the building energy consumption and an increase in WWR also results in increased energy consumption. The study concludes the careful considerations of WWR and the south orientation during the designing of building will contribute to efficient energy consumption in residential buildings.

scholarly journals Thermal Analysis of Integrating Roof with Phase Change Materials for Energy Saving in Residential Buildings

2018 ◽  
Vol 7 (4) ◽  
pp. 118
Author(s):  
Hayder M. Jaffal ◽  
Tawfeeq W. Mohammed ◽  
Marwa H. Wasmi
Keyword(s):  
Energy Consumption ◽  
Phase Change ◽  
Energy Demand ◽  
Phase Change Materials ◽  
Residential Buildings ◽  
Residential Building ◽  
Thermal Conditions ◽  
Indoor Temperature ◽  
Good Potential ◽  
Thermo Physical Properties

The sector of air-conditioning in the residential building consumes most of the total ‎electricity supplied for heating or cooling. Thus it has a major impact on the greenhouse gases and climate. Phase change ‎materials (PCMs) are regarded as a possible solution for reducing the energy consumption of ‎buildings by storing the heat and releasing it in certain times. The present study assists for the ‎utilization of PCMs in the roof of residential building to absorb the heat comes from solar ‎radiation during the daytime and releasing it to the inside nightly. Building considerations ‎as well as thermo-physical properties of PCMs have been taken and measured experimentally. ‎Results have shown that these materials have a good potential for reducing energy demand ‎and satisfy comfortable thermal conditions. The obtained readings, from a rig model built for that purpose, ‎showed that the indoor temperature could increase by 5-9oC in the winter compared to that ‎measured in a traditional one. Furthermore, a simulation program depended on degree-days ‎method explained that the energy consumption could be saved up to 75%. Thus PCMs could ‎submit encouraging suggestions toward the sustainability.‎

Instrumentation and Simulation of the Hygro-Thermal Conditions of a Green Building: A Study of the Impact of the Post-Occupancy Usages on Thermal Comfort

2010 ◽  
Author(s):  
Franck Lucas ◽  
Jean Perouzel ◽  
Frantz Sinama ◽  
Franc¸ois Garde
Keyword(s):  
Thermal Comfort ◽  
Natural Ventilation ◽  
Green Building ◽  
Thermal Conditions ◽  
Field Measurements ◽  
Building Design ◽  
Second Step ◽  
Indoor Temperature ◽  
The Impact ◽  
Block Approach

Post-occupancy evaluations (POEs) are useful for evaluating the success of any building design, but are particularly useful in evaluating green buildings. It is the only opportunity architects and engineers have to learn if their buildings actually work as planned. On the other hand, following the “guidebook” of a green building, i.e. having occupants aware of the particularity of the premise and taught about how it works and what the proper usages are (which are not automatically straightforward), is of prime importance since misuse of a green building can directly lead to discomfort and energy over consumption. In that framework, this paper stresses the link between occupants’ usages and their indoor thermal comfort by attempting a quantification of the impact of each usage on indoor temperature and hygrometry (and thus thermal comfort), showing by the way that, in order a POE to fully give exploitable results, a communication to occupants on proper usages has to be the first step after the delivery of a green building. To study that link, the real case of a green building located in the French tropical island of La Re´union has been used. The overall idea followed in this work lies in two steps: The first one is the creation of a “validated” digital building description obtained thanks to a process of comparison between simulations outputs (DesignBuilder) and field measurements (weather and comfort stations), and to a “block by block” approach that allows independent validations of the description of the fabrics and of the description of the usages. The second step is the utilization of the model obtained in the first step to perform simulations of new usages, as modifications in natural ventilation features (doors, windows open or closed) or in number of occupants, lighting schedule etc. These new simulations lead to the possibilities of comparing situations between each others, and therefore of quantifying the contribution, positive or negative, of each chosen usage to thermal comfort. Eventually, this paper will describe an example of combination of new usages that makes the conditions noticeably more comfortable within the building, stressing that following the good usages in a green building is a first requirement before realizing any POE.

A Brief Discussion on Energy-Saving Technology of the Single Residential Building

2013 ◽  
Vol 689 ◽  
pp. 60-65
Author(s):  
Jing Zhao
Keyword(s):  
Sustainable Development ◽  
Energy Consumption ◽  
Energy Saving ◽  
Negative Impact ◽  
Residential Building ◽  
Building Design ◽  
Energy Crisis ◽  
Green Architecture ◽  
Energy Saving Technology ◽  
Taking Action

The energy crisis and environmental degradation bring increasingly apparent threat to human civilization development. As a producer of energy consumption, construction has attracted people's attention. It would advance the building to move in the direction of sustainable development and curb the negative impact of energy consumption on global ecology just by taking action to improve once construction's way and complying with the design concept of energy-saving. By applying a variety of energy-saving technologies on a single residential building design, the paper illustrates the design principles and method of green architecture. We try to use creative and technical means to achieve sustainable development of construction.

Influences of Exterior Windows on Heating and Air-Conditioning System Energy Consumption in Residential Building

2014 ◽  
Vol 521 ◽  
pp. 714-718
Author(s):  
Chun E Li ◽  
Ya Jun Wang ◽  
Ying Cai
Keyword(s):  
Heat Transfer ◽  
Energy Consumption ◽  
Air Conditioning ◽  
Residential Building ◽  
The Other ◽  
Air Conditioning System ◽  
System Energy ◽  
Typical Design ◽  
The Heat Transfer Coefficient ◽  
Optimal Window

The energy consumption of a typical design of a building in Lanzhou was simulated by the software DeST-h to gain the changing regulation of rooms load index with different window-wall ratio, shading coefficient and the heat transfer coefficient. Research shows that the optimal window-wall ratio is 0.5 in the south orientation. In the other orientations, the smaller radio of window-wall could assure less energy consumption.

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