Effect of External Wall Insulation on Building Energy Consumption

2011 ◽  
Vol 71-78 ◽  
pp. 156-159 ◽  
Author(s):  
Qing Liang ◽  
Jian Fei Liu ◽  
Jing Liu ◽  
Gang Xu
Keyword(s):  
Energy Consumption ◽  
Thermal Resistance ◽  
Thermal Insulation ◽  
Building Energy ◽  
Simulation Software ◽  
Building Energy Consumption ◽  
Saving Energy ◽  
External Wall

The building energy consumption associated with the external wall insulation for different orientations and different exterior finishes has been evaluated using the simulation software EnergyPlus. The results suggest that in certain condition the thermal resistance of the external wall and the absorptance of the exterior finish should be high for heating dominated climate or room, while both of them should be low for cooling dominated climate or room for saving energy. Besides, it has different annual electricity savings for different external wall orientations at the same thickness of thermal insulation, so the insulation should be priority used for the external wall which has the largest saving potential.

Impact of Building Orientation and Window-Wall Ratio on the Office Building Energy Consumption

2013 ◽  
Vol 409-410 ◽  
pp. 606-611 ◽  
Author(s):  
Zhen Yu ◽  
Wei Lin Zhang ◽  
Ting Yong Fang
Keyword(s):  
Energy Consumption ◽  
Air Conditioning ◽  
Building Energy ◽  
Simulation Software ◽  
Office Building ◽  
Building Energy Consumption ◽  
Total Energy Consumption ◽  
Building Orientation ◽  
Heating Energy Consumption ◽  
Energy Consumption Simulation

Using the energy consumption simulation software to research the HVAC in fall air conditioning mode, different building orientation and window-wall ratio of the office building energy consumption. The study found that the heating energy consumption, air-conditioning energy consumption and total energy consumption is gradually increased with the increase of the window-wall ratio under the same orientation. The result provides some reference for public buildings in setting of building orientation and window-wall ratio.

Parametric Analysis of Building Elements on Building Energy Use

2015 ◽  
Vol 74 (4) ◽  
Author(s):  
Atefeh Mohammadpour ◽  
Mohammad Mottahedi ◽  
Shideh Shams Amiri ◽  
Somayeh Asadi ◽  
David Riley ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Energy Use ◽  
Full Range ◽  
Building Energy ◽  
Energy Performance ◽  
Simulation Software ◽  
Design Parameters ◽  
Building Energy Consumption ◽  
Commercial Building ◽  
Building Shape

Building energy modeling is essential to estimate energy consumption of buildings. Predicting building energy consumption benefits the owners, designers, and facility managers by enabling them to have an overview of building energy consumption and can help them to determine building energy performance during the design phase. This paper focuses on two different shapes of commercial building, H and rectangle to estimate energy consumption in buildings in three different climate zones, cold, hot-humid, and mixed-humid. To address this, DOE-2 building simulation software was used to build and simulate individual commercial building configurations that were generated using Monte Carlo simulation techniques. Ten thousand simulations for each building shape and climate zone were conducted to develop a comprehensive dataset covering the full range of design parameters. 

A review on indoor environmental quality (IEQ) and energy consumption in building based on occupant behavior

Facilities ◽  
2017 ◽  
Vol 35 (11/12) ◽  
pp. 684-695 ◽  
Author(s):  
Iman Asadi ◽  
Norhayati Mahyuddin ◽  
Payam Shafigh
Keyword(s):  
Energy Consumption ◽  
Human Behavior ◽  
Environmental Quality ◽  
Building Energy ◽  
Simulation Software ◽  
Indoor Environmental Quality ◽  
Occupant Behavior ◽  
Building Energy Consumption ◽  
Content Type ◽  
Behavior Simulation

Purpose The purpose of this paper is to review the concept of occupant behavior and its relation with indoor environmental quality (IEQ) and building energy consumption. The behavior is referred to any direct or indirect action, which is selected by an occupant to manage the unpleasant indoor environmental conditions. Thermal comfort, indoor air quality, aural comfort and visual comfort are the key factors of IEQ evaluation. Human behavior significantly interacts with energy consumption in buildings. Design/methodology/approach Each IEQ parameter was reviewed separately and the overall IEQ acceptance was considered. In addition, this paper reviews the methods that were used to measure and simulate the IEQ factors, energy consumption and human behavior. Finally, the lack of knowledge in this field is based on the review demonstrated. Findings Most studies considered one or two IEQ factors to evaluate IEQ acceptance in buildings. Further, weakness of simulating all IEQ factors at the same time is the deficiency of IEQ simulation, based on reviews. In the case of occupant behavior simulation, the uncertainly of human psychological parameter is a drawback to predict behavior. Originality/value Energy consumption, occupant health and productivity are related to IEQ. Human behavior affects building energy consumption directly. Simulation software and methods can predict IEQ factors and human behavior. Therefore, reviewing the existing studies is critical to find new methods for measuring and simulating IEQ, energy consumption and human behavior in buildings.

scholarly journals Research on the Impact of Wind Angles on the Residential Building Energy Consumption

2014 ◽  
Vol 2014 ◽  
pp. 1-15 ◽  
Author(s):  
Zou Huifen ◽  
Yang Fuhua ◽  
Zhang Qian
Keyword(s):  
Energy Consumption ◽  
Heat Loss ◽  
Indoor Air ◽  
Wind Direction ◽  
Natural Ventilation ◽  
Building Energy ◽  
Simulation Software ◽  
Outdoor Environment ◽  
Building Energy Consumption ◽  
The Impact

Wind angles affect building’s natural ventilation and also energy consumption of the building. In winter, the wind direction in the outdoor environment will affect heat loss of the building, while in summer the change of wind direction and speed in the outdoor environment will affect the building’s ventilation and indoor air circulation. So, making a good deal with the issue of the angle between local buildings and the dominant wind direction can effectively solve the winter and summer ventilation problems. Thereby, it can enhance the comfort of residential person, improve indoor air quality, solve heat gain and heat loss problems in winter and summer in the severely cold and cold regions, and reduce building energy consumption. The simulation software CFD and energy simulation software are used in the paper. South direction of the building is the prototype of the simulation. The angle between the direction of the building and the outdoor environment wind is changed sequentially. Energy consumption under different wind angle conditions is compared with each other. Combined with natural ventilation under various wind angles, the paper gives the best recommended solution of building direction in Shenyang.

Study on Energy Saving of External Wall Thermal Insulation Based on City Green Building

2014 ◽  
Vol 608-609 ◽  
pp. 1061-1065
Author(s):  
Lei Cao ◽  
Xue Nan Mu
Keyword(s):  
Energy Consumption ◽  
Energy Conservation ◽  
Energy Saving ◽  
Thermal Insulation ◽  
Green Building ◽  
Building Energy ◽  
External Wall ◽  
Building Energy Saving ◽  
Energy Saving Technology ◽  
The City

In recent years, with the continuous development of society, people's awareness of energy conservation has also been enhanced. Among them, building energy consumption occupies a very large proportion in all their energy consumption. Therefore, people have taken various measures to reduce the energy consumption of building its own. External wall thermal insulation is a new building energy saving technology. Through verification, application of external wall insulation technology in building energy saving greatly reduces the energy consumption of buildings. This paper mainly introduced on the city building external wall thermal insulation technology and some related measures.

Building Energy-Saving Technology

2012 ◽  
Vol 472-475 ◽  
pp. 469-472 ◽  
Author(s):  
Bing Nan Liu ◽  
Qiong He
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Thermal Insulation ◽  
Building Energy ◽  
Living Standard ◽  
External Wall ◽  
Building Energy Saving ◽  
Energy Saving Technology ◽  
Reduce Energy Consumption ◽  
Day By Day

With the improvement of people's living standard, the building energy consumption is increasing day by day. In order to reduce energy consumption, we should develop energy-saving building and analyze building energy saving technology. This article mainly introduces three kinds of energy saving technology which include the external wall thermal insulation technology, doors and Windows energy saving technology and roof insulation technology.

scholarly journals Energy performance of air conditioned buildings based on short-term weather forecast

2019 ◽  
Vol 111 ◽  
pp. 04045
Author(s):  
Marko G. Ignjatović ◽  
Bratislav D. Blagojević ◽  
Mirko M. Stojiljković ◽  
Aleksandar S. Anđelković ◽  
Milena B. Blagojević ◽  
...  
Keyword(s):  
Sensitivity Analysis ◽  
Energy Consumption ◽  
Thermal Comfort ◽  
Global Sensitivity Analysis ◽  
Building Energy ◽  
Energy Performance ◽  
Simulation Software ◽  
Building Energy Consumption ◽  
Global Sensitivity ◽  
Independent Variables

One of the possible ways to improve balance between building energy consumption and occupant thermal comfort in existing buildings is to use simulation-assisted operation of HVAC systems. Simulation-assisted operation can be formulated as a type of operation that implements knowledge of future disturbance acting on the building and that enables operating the systems in such a way to fulfill given goals, which in nature can often be contradictory. The most important future conditions on building energy consumption are weather parameters and occupant behavior and expectations of thermal environment. In order to achieve this type of operation, optimization methods must be applied. Methodology to create HVAC system operation strategies on a daily basis is presented. Methodology is based on using building energy performance simulation software EnergyPlus, available weather data, global sensitivity analysis, and custom developed software with particle swarm optimization method applied over the moving horizon. Global sensitivity analysis is used in order to reduce number of independent variables for the optimization process. The methodology is applied to office part of real combined-type building located in Niš, Serbia. Use of sensitivity analysis shows that the reduced number of independent variables for the optimization would lead to similar thermal comfort and energy consumption, with significant computer runtime reduction.

Impact of Window-Wall Ratio on Air Conditioning Energy Consumption under Different Residential Using Modes in Guangzhou

2013 ◽  
Vol 316-317 ◽  
pp. 1123-1127 ◽  
Author(s):  
Hai Shan Li ◽  
Yan Gao ◽  
Guo Jun Zhao ◽  
Ya Zhou Jing
Keyword(s):  
Energy Consumption ◽  
Air Conditioning ◽  
Residential Building ◽  
Building Energy ◽  
Simulation Software ◽  
Building Energy Consumption ◽  
Operation Modes ◽  
The Impact ◽  
Energy Consumption Simulation

In this paper, with the aid of energy consumption simulation software DeST-h, the annual air conditioning energy consumption of a typical residential building in Guangzhou was simulated to study the impact of window-wall ratio on the energy consumption under two different operation modes: natural and mechanical. It was revealed that increasing of south window-wall ratio, building energy consumption is increased under all mechanical mode, but reduces under nature priority mode.

scholarly journals Research on Decorative and Integrated Thermal Insulation Board for External Wall

2020 ◽  
Vol 165 ◽  
pp. 05013 ◽  
Author(s):  
Zhang Zhanhua ◽  
lI jie ◽  
Shi Changyu ◽  
Zhang Chao ◽  
Wang An ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Fly Ash ◽  
Energy Conservation ◽  
Thermal Insulation ◽  
Building Energy ◽  
Energy Utilization ◽  
Wall Structure ◽  
Building Energy Consumption ◽  
Building Energy Conservation ◽  
Heat Preservation

With the acceleration of globalization, industrialization and informatization, the consumption of energy resources is increasing, and the building energy consumption accounts for about 30%, so the building energy conservation has become an important part of energy conservation and emission reduction. At the same time of economic development, we should reduce building energy consumption and do a good job in building energy conservation [1], and put forward the following ways: the improvement of building’s own heat preservation and insulation performance; the improvement of energy utilization system efficiency such as electricity and heating; the development and utilization of new energy; and the proper management of energy utilization equipment system. Among them, the most effective way is to improve the thermal insulation performance of the building itself. The thermal insulation of enclosure and the air tightness of doors and windows are two important parts of thermal insulation. According to the relevant data [2], the heat loss of enclosure structure accounts for 40-50% of the building energy consumption, and the heat loss of wall structure accounts for about 70%. Therefore, the improvement of the thermal insulation requirements of the wall structure plays a huge role in building energy conservation In this paper, the experimental research on the exterior wall thermal insulation board of decoration and heat preservation integration is carried out. The influence of fly ash content, asbestos fiber content, composite active activator, waterproof agent and other additives on the physical properties of fiber-reinforced fly ash / cement board is discussed. The optimal content of various factors is determined and its mechanism is analyzed. The optimum proportion of fiber reinforced fly ash / cement board was determined by orthogonal test.

Analysis on the Effect of Fixed Shading over External Window on Energy Consumption and Efficiency of Residential Building in Shanghai

2013 ◽  
Vol 316-317 ◽  
pp. 113-118
Author(s):  
Guo Jun Zhao ◽  
Yan Gao ◽  
Hai Shan Li ◽  
Ya Zhou Jing
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Residential Building ◽  
Building Energy ◽  
Simulation Software ◽  
Building Energy Consumption ◽  
Room Ventilation ◽  
Simulation Results ◽  
Window Area ◽  
Energy Consumption Simulation

The building energy consumption simulation software DeST is used to analyze the effects of fixed shading over external window on energy consumption and efficiency, on the base of a residential building in Shanghai. The simulation results show that the fixed shading over south window has little effect on the overall energy saving of residential building. For east and west external window, if window area is not very large and its shading performance is better, the effect of fixed shading installation on energy saving is not obvious. On the contrary, if its area is large and its shading performance is ordinary, the effect is remarkable. Furthermore, when room ventilation capacity is poor, the effect of energy saving by fixed shading installation is more prominent.

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