scholarly journals Spatial Day Light Autonomy and Energy Analysis of a Residential Building for Different Climatic Conditions and Window-to-Wall Ratios

2020 ◽  
Vol 184 ◽  
pp. 01117
Author(s):  
Dr. R. Vijay Kumar ◽  
Sandeep Kumar N ◽  
Narsimha K ◽  
Shiva Ram Reddy K ◽  
Vamsee Krishna E
Keyword(s):  
Energy Consumption ◽  
Building Materials ◽  
Residential Building ◽  
Building Energy ◽  
Climatic Conditions ◽  
Building Envelope ◽  
Outdoor Environment ◽  
Climate Conditions ◽  
Glazed Surface ◽  
Heat Exchanges

Building envelope of the structures plays a crucial role in the energy consumption. To decrease the amount of Energy Consumption in Building, Energy saving materials and Optimal sizing of Openings to be selected. In this aspect a model is simulated by using the Design Builder Software to Analyse the Spatial Daylight Autonomy, Thermal Comfort and Annual Energy Consumption. Windows impact the heat exchanges between indoor environment and outdoor environment. This possibly permit a proper utilization of solar energy. The research aims to investigate the influence of window-to-wall ratio in different of different climate conditions in India which has been introduced as hot dry, hot humid and moderate climates. The research has studied the most possible window-to-wall ration in the region based on previous work 5%, 10%,15% and 20% out of the faced surface area of the building. This paper sketch out the modus operandi and the alike results of an analysis which targets to find out the ideal size of the glazed surface, which permits the minimum amount of overall energy consumption and determining the efficient building materials .The analyses and simulation procedures were performed using Design Builder software and the window dimensions are calculated in terms of the ratio between the glazed surface to the gross facade area, defined as window to wall ratio (WWR).

Sensitivity Analysis of Influence Factors on Residential Building Energy Consumption in Hot Summer and Cold Winter Zone

2011 ◽  
Vol 243-249 ◽  
pp. 6942-6946
Author(s):  
Na Li ◽  
Yan Qian Zhao ◽  
Qi Liu
Keyword(s):  
Energy Consumption ◽  
Influence Factors ◽  
Residential Building ◽  
Building Energy ◽  
Building Envelope ◽  
Building Energy Consumption ◽  
Cold Winter ◽  
Building Orientation ◽  
Simulating Calculation ◽  
Calculation Results

Taking residential building in hot summer and cold winter zone as research subject, studies the influence factors and sensitivity of building consumption. Choosing three factors of building orientation, building envelope and window-wall ratio for analysis, compares the calculation results by using DeST-h software with energy consumption simulating calculation. The results show that the effect of building envelope heat transfer coefficient on building energy consumption is the greatest. So that is the most sensitive factor, which is followed by building orientation, the effect of window-wall ratio is relatively small.

Selection Analysis of Building Envelope with Building Materials in Summer Hot and Winter Cold Area — A Case Study in Xi’an Wall Insulation System

2013 ◽  
Vol 675 ◽  
pp. 162-164
Author(s):  
Xiao Lin Dong ◽  
Dong Nan Han
Keyword(s):  
Energy Consumption ◽  
Building Materials ◽  
Residential Buildings ◽  
Residential Building ◽  
Building Envelope ◽  
Simulation Software ◽  
Wall Structure ◽  
Insulation System ◽  
Different Types ◽  
Winter Cold

The model of residential buildings is established in allusion to the type of residential building wall exterior insulation system and the characteristics of the various features of the wall enclosure in summer hot and winter cold region. The energy consumption of different types of wall structure is simulated and calculated using energy simulation software DeST-h, the economic characters of the structure of energy consumption of different types were compared and analyzed comprehensively, the conservation and efficiency were quantitative analyzed, the principias for selecting the structure of residential buildings of wre provide based on the principle of maximizing energy efficiency.

Zhangjiakou a Residential Building Envelope Structure Optimization Design

2014 ◽  
Vol 587-589 ◽  
pp. 247-251
Author(s):  
Hong Lei Ma
Keyword(s):  
Energy Consumption ◽  
Optimization Design ◽  
Influence Factors ◽  
Structure Optimization ◽  
Residential Building ◽  
Building Energy ◽  
Building Envelope ◽  
Building Structure ◽  
Building Energy Consumption ◽  
Structure Optimization Design

The energy consumption of a residential building Zhangjiakou area in different envelope was numerically simulated by using DeST software, and the influence factors on building energy consumption was analyzed, which provides a certain reference for optimization design of building structure Zhangjiakou region.

scholarly journals Historical tradition and modern transformations of the algerian and persian housing environment

2020 ◽  
pp. 113-124
Author(s):  
Yuliia Ivashko
Keyword(s):  
Building Materials ◽  
Residential Building ◽  
Climatic Conditions ◽  
Planning System ◽  
Residential Areas ◽  
Characteristic Type ◽  
Climate Conditions ◽  
Housing Environment ◽  
Religious Architecture ◽  
Regional Features

Historically, the urban situation in the cities and towns of Persia and Algeria was highly specific. The hot dry climate contributed to a street network, which was protected from the sun as much as possible. Climate conditions determined the appearance of houses with flat roofs, small windows and white walls. The entire urban planning system had the main centre - the city (town) mosque. There were smaller mosques in the structure of residential areas, densely surrounded by houses. Just as under the influence of climate a certain type of residential building took shape, these same factors formed a characteristic type of mosque in the housing environment. Globalist trends have affected even such a conservative sphere as Islamic religious architecture, as it gradually toned down striking regional features, which is explained by the typicality of modern building materials and structures and the international activity of various architectural and construction firms in different corners of the world. Over the centuries, two opposing images of the mosque have emerged - the pointedly magnificent Persian and the fortress-type of Maghreb (typical for Algeria) types. This paper reviews how specific climatic conditions and historical processes influenced the use of building materials, structures and decoration in the mosques of Persia’s and Algeria’s different regions. Today we observe an erosion of regional features in the form and layout of modern mosques, which are analysed on the basis of the examples given. On the basis of a comparison of authentic mosques and erected by foreigners, it is proved how local features are gradually being eliminated and what this leads to.

Economic Potentials of Energy-Efficient Residential Building Envelope Retrofitting in Turkey

2019 ◽  
pp. 728-755
Author(s):  
M. Mustafa Erdoğdu ◽  
Coşkun Karaca ◽  
Ali Kurultay
Keyword(s):  
Energy Consumption ◽  
Thermal Resistance ◽  
Energy Efficient ◽  
Building Materials ◽  
Energy Savings ◽  
Residential Buildings ◽  
Residential Building ◽  
Economic Benefits ◽  
Building Envelope ◽  
Heat Transfers

The amount of energy consumption in the residential buildings has a very significant share with nearly 30 percent in the total amount of energy consumption. Therefore, residential sector is identified in this chapter as being one of the areas with a large potential for energy savings. Inefficient dwelling construction and design methods are widely used in Turkey and only about five percent of residential buildings are insulated. Concerning the importance and immediate need in Turkey for energy-efficient residential building retrofitting, this chapter identifies economic benefits of such retrofitting by particularly focusing on heat transfers by conductivity, where the rate can be determined by surface size, thermal resistance of the building materials and their thickness.

scholarly journals Complex analysis of energy efficiency in operated high-rise residential building: Case study

2018 ◽  
Vol 33 ◽  
pp. 02005 ◽  
Author(s):  
Sergey Korniyenko
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Energy Conservation ◽  
Thermal Comfort ◽  
Complex Analysis ◽  
Residential Building ◽  
Building Energy ◽  
Building Envelope ◽  
Heat Losses ◽  
High Rise

Energy conservation and human thermal comfort enhancement in buildings is a topical issue of modern architecture and construction. The innovative solution of this problem makes it possible to enhance building ecological and maintenance safety, to reduce hydrocarbon fuel consumption, and to improve life standard of people. The requirements to increase of energy efficiency in buildings should be provided at all the stages of building's life cycle that is at the stage of design, construction and maintenance of buildings. The research purpose is complex analysis of energy efficiency in operated high-rise residential building. Many actions for building energy efficiency are realized according to the project; mainly it is the effective building envelope and engineering systems. Based on results of measurements the energy indicators of the building during annual period have been calculated. The main reason of increase in heat losses consists in the raised infiltration of external air in the building through a building envelope owing to the increased air permeability of windows and balcony doors (construction defects). Thermorenovation of the building based on ventilating and infiltration heat losses reduction through a building envelope allows reducing annual energy consumption. Energy efficiency assessment based on the total annual energy consumption of building, including energy indices for heating and a ventilation, hot water supply and electricity supply, in comparison with heating is more complete. The account of various components in building energy balance completely corresponds to modern direction of researches on energy conservation and thermal comfort enhancement in buildings.

scholarly journals A Hybrid Simulation Model to Predict the Cooling Energy Consumption for Residential Housing in Hong Kong

Energies ◽  
2021 ◽  
Vol 14 (16) ◽  
pp. 4850
Author(s):  
Kwok Wai Mui ◽  
Ling Tim Wong ◽  
Manoj Kumar Satheesan ◽  
Anjana Balachandran
Keyword(s):  
Energy Efficiency ◽  
Hong Kong ◽  
Energy Consumption ◽  
Energy Demand ◽  
Building Materials ◽  
Energy Savings ◽  
Hybrid Simulation ◽  
Residential Building ◽  
Building Energy ◽  
Building Energy Efficiency

In Hong Kong, buildings consume 90% of the electricity generated and over 60% of the city’s carbon emissions are attributable to generating power for buildings. In 2018, Hong Kong residential sector consumed 41,965 TJ (26%) of total electricity generated, with private housing accounting for 52% and public housing taking in 26%, making them the two major contributors of greenhouse gas emissions. Furthermore, air conditioning was the major source consuming 38% of the electricity generated for the residential building segment. Strategizing building energy efficiency measures to reduce the cooling energy consumption of the residential building sector can thus have far-reaching benefits. This study proposes a hybrid simulation strategy that integrates artificial intelligence techniques with a building energy simulation tool (EnergyPlus™) to predict the annual cooling energy consumption of residential buildings in Hong Kong. The proposed method predicts long-term thermal energy demand (annual cooling energy consumption) based on short-term (hourly) simulated data. The hybrid simulation model can analyze the impacts of building materials, construction solutions, and indoor–outdoor temperature variations on the cooling energy consumed in apartments. The results indicate that using low thermal conductivity building materials for windows and external walls can reduce the annual cooling energy consumption by 8.19%, and decreasing the window-to-wall ratio from 80% to 40% can give annual cooling energy savings of up to 18%. Moreover, significant net annual cooling energy savings of 13.65% can be achieved by changing the indoor set-point temperature from 24 °C to 26 °C. The proposed model will serve as a reference for building energy efficiency practitioners to identify key relationships between building physical characteristics and operational strategies to minimize cooling energy demand at a minimal time in comparison to traditional energy estimation methods.

Economic Potentials of Energy-Efficient Residential Building Envelope Retrofitting in Turkey

2016 ◽  
pp. 340-367
Author(s):  
M. Mustafa Erdoğdu ◽  
Coşkun Karaca ◽  
Ali Kurultay
Keyword(s):  
Energy Consumption ◽  
Thermal Resistance ◽  
Energy Efficient ◽  
Building Materials ◽  
Energy Savings ◽  
Residential Buildings ◽  
Residential Building ◽  
Economic Benefits ◽  
Building Envelope ◽  
Heat Transfers

The amount of energy consumption in the residential buildings has a very significant share with nearly 30 percent in the total amount of energy consumption. Therefore, residential sector is identified in this chapter as being one of the areas with a large potential for energy savings. Inefficient dwelling construction and design methods are widely used in Turkey and only about five percent of residential buildings are insulated. Concerning the importance and immediate need in Turkey for energy-efficient residential building retrofitting, this chapter identifies economic benefits of such retrofitting by particularly focusing on heat transfers by conductivity, where the rate can be determined by surface size, thermal resistance of the building materials and their thickness.

scholarly journals Use of Dissimilar Walling Systems on Residential Building Envelopes for Improving Their Thermal Performance

2009 ◽  
Vol 4 (2) ◽  
pp. 107-125
Author(s):  
Katherine Gregory ◽  
Behdad Moghtaderi ◽  
Adrian Page
Keyword(s):  
Energy Consumption ◽  
Thermal Performance ◽  
Residential Building ◽  
Climatic Conditions ◽  
Building Envelope ◽  
Thermal Mass ◽  
Building Envelopes ◽  
Numerical Predictions ◽  
Brick Veneer ◽  
East And West

This paper summarises the results of a combined numerical, statistical and experimental study concerned with the use of dissimilar walling systems on the external parts of a given building envelope. The rational behind this “hybrid wall” concept, as opposed to conventional approaches where identical walls are used in a building envelope, is to achieve a more effective distribution of thermal mass across the envelope and, hence, improve the overall thermal performance of the building. The effectiveness of the “hybrid wall” concept was investigated using a series of hypothetical building modules of common Australian residential constructions, namely Light Weight (LW), Brick Veneer (BV), Reverse Brick Veneer (RBV) and Cavity Brick (CB). These designs were examined numerically using a commercial energy rating tool known as “AccuRate”, statistically using JMP software and experimentally using a novel bench-scale setup developed as part of this study. The performance of each design was evaluated by its energy consumption. The numerical predictions and experimental data highlighted that the east and west walls have the most impact on the energy consumption under Australian climatic conditions. It was found that considerable reductions in the energy consumption could be achieved in cases where the hybrid wall concept was implemented through the use of high thermal mass insulated walls on the east and west sides of the building envelope.

Impact of roof shading on building energy performance in warm & humid climatic places of India

2020 ◽  
pp. 50-64
Author(s):  
Kuladeep Kumar Sadevi ◽  
Avlokita Agrawal
Keyword(s):  
Energy Consumption ◽  
Energy Conservation ◽  
Energy Performance ◽  
General Assumption ◽  
Climatic Conditions ◽  
Building Envelope ◽  
Passive Cooling ◽  
Base Case ◽  
U Value ◽  
The Impact

With the rise in awareness of energy efficient buildings and adoption of mandatory energy conservation codes across the globe, significant change is being observed in the way the buildings are designed. With the launch of Energy Conservation Building Code (ECBC) in India, climate responsive designs and passive cooling techniques are being explored increasingly in building designs. Of all the building envelope components, roof surface has been identified as the most significant with respect to the heat gain due to the incident solar radiation on buildings, especially in tropical climatic conditions. Since ECBC specifies stringent U-Values for roof assembly, use of insulating materials is becoming popular. Along with insulation, the shading of the roof is also observed to be an important strategy for improving thermal performance of the building, especially in Warm and humid climatic conditions. This study intends to assess the impact of roof shading on building’s energy performance in comparison to that of exposed roof with insulation. A typical office building with specific geometry and schedules has been identified as base case model for this study. This building is simulated using energy modelling software ‘Design Builder’ with base case parameters as prescribed in ECBC. Further, the same building has been simulated parametrically adjusting the amount of roof insulation and roof shading simultaneously. The overall energy consumption and the envelope performance of the top floor are extracted for analysis. The results indicate that the roof shading is an effective passive cooling strategy for both naturally ventilated and air conditioned buildings in Warm and humid climates of India. It is also observed that a fully shaded roof outperforms the insulated roof as per ECBC prescription. Provision of shading over roof reduces the annual energy consumption of building in case of both insulated and uninsulated roofs. However, the impact is higher for uninsulated roofs (U-Value of 3.933 W/m2K), being 4.18% as compared to 0.59% for insulated roofs (U-Value of 0.33 W/m2K).While the general assumption is that roof insulation helps in reducing the energy consumption in tropical buildings, it is observed to be the other way when insulation is provided with roof shading. It is due to restricted heat loss during night.

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