scholarly journals Development and evaluation of a building energy model integrated in the TEB scheme

2012 ◽  
Vol 5 (2) ◽  
pp. 433-448 ◽  
Author(s):  
B. Bueno ◽  
G. Pigeon ◽  
L. K. Norford ◽  
K. Zibouche ◽  
C. Marchadier
Keyword(s):  
Energy Consumption ◽  
Air Conditioning ◽  
Natural Ventilation ◽  
Urban Climate ◽  
Internal Heat ◽  
Building Energy ◽  
Energy Model ◽  
System Capacity ◽  
Building Energy Consumption ◽  
Air Conditioning Systems

Abstract. The use of air-conditioning systems is expected to increase as a consequence of global-scale and urban-scale climate warming. In order to represent future scenarios of urban climate and building energy consumption, the Town Energy Balance (TEB) scheme must be improved. This paper presents a new building energy model (BEM) that has been integrated in the TEB scheme. BEM-TEB makes it possible to represent the energy effects of buildings and building systems on the urban climate and to estimate the building energy consumption at city scale (~10 km) with a resolution of a neighbourhood (~100 m). The physical and geometric definition of buildings in BEM has been intentionally kept as simple as possible, while maintaining the required features of a comprehensive building energy model. The model considers a single thermal zone, where the thermal inertia of building materials associated with multiple levels is represented by a generic thermal mass. The model accounts for heat gains due to transmitted solar radiation, heat conduction through the enclosure, infiltration, ventilation, and internal heat gains. BEM allows for previously unavailable sophistication in the modelling of air-conditioning systems. It accounts for the dependence of the system capacity and efficiency on indoor and outdoor air temperatures and solves the dehumidification of the air passing through the system. Furthermore, BEM includes specific models for passive systems, such as window shadowing devices and natural ventilation. BEM has satisfactorily passed different evaluation processes, including testing its modelling assumptions, verifying that the chosen equations are solved correctly, and validating the model with field data.

scholarly journals Development and evaluation of a building energy model integrated in the TEB scheme

2011 ◽  
Vol 4 (4) ◽  
pp. 2973-3011 ◽  
Author(s):  
B. Bueno ◽  
G. Pigeon ◽  
L. K. Norford ◽  
K. Zibouche
Keyword(s):  
Energy Consumption ◽  
Air Conditioning ◽  
Natural Ventilation ◽  
Urban Climate ◽  
Internal Heat ◽  
Building Energy ◽  
Energy Model ◽  
System Capacity ◽  
Building Energy Consumption ◽  
Air Conditioning Systems

Abstract. The use of air-conditioning systems is expected to increase as a consequence of global-scale and urban-scale climate warming. In order to represent future scenarios of urban climate and building energy consumption, the Town Energy Budget (TEB) scheme must be improved. This paper presents a new building energy model (BEM) that has been integrated in the TEB scheme. BEM-TEB makes it possible to represent the energy effects of buildings and building systems on the urban climate and to estimate the building energy consumption at city scale (~10 km) with a resolution of a neighbourhood (~100 m). The physical and geometric definition of buildings in BEM has been intentionally kept as simple as possible, while maintaining the required features of a comprehensive building energy model. The model considers a single thermal zone, where the thermal inertia of building materials associated with multiple levels is represented by a generic thermal mass. The model accounts for heat gains due to transmitted solar radiation, heat conduction through the enclosure, infiltration, ventilation, and internal heat gains. As a difference with respect to other building parameterizations used in urban climate, BEM includes specific models for real air-conditioning systems. It accounts for the dependence of the system capacity and efficiency on indoor and outdoor air temperatures and solves the dehumidification of the air passing through the system. Furthermore, BEM includes specific models for passive systems, such as window shadowing devices and natural ventilation. BEM has satisfactorily passed different evaluation processes, including testing its modelling assumptions, verifying that the chosen equations are solved correctly, and validating the model with field data.

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.

scholarly journals Discussion on Energy Saving Technology of Building Heating Ventilation Air Conditioning

2020 ◽  
Vol 4 (2) ◽  
Author(s):  
Xiaoli Mu
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Emission Reduction ◽  
Air Conditioning ◽  
Building Energy ◽  
Modern Architecture ◽  
Building Energy Consumption ◽  
Continuous Development ◽  
Energy Saving Technology ◽  
Consumption System

Heating Ventilation Air Conditioning (HVAC) is an important part of modern architecture, and it is also the most important energy consumption system in the use of modern buildings. With the continuous development and progress of the society, energy saving and emission reduction has become a hot topic in today's society, and people pay enough attention to the application of building HVAC energy-saving technology. Through the application of this technology, the effect of reducing building energy consumption is achieved. The author explores and analyzes the necessity and main advantages of building HVAC energy-saving technology, and puts forward an effective way to apply HVAC energy-saving technology, which is hoped to help reduce building energy consumption.

Energy-saving parameterized design of buildings based on genetic algorithm

2020 ◽  
Vol 38 (5) ◽  
pp. 785-795 ◽  
Author(s):  
Kele Zhang
Keyword(s):  
Genetic Algorithm ◽  
Energy Consumption ◽  
Energy Conservation ◽  
Energy Saving ◽  
Natural Ventilation ◽  
Model Building ◽  
Building Energy ◽  
Building Energy Consumption ◽  
Content Type ◽  
Building Parameters

PurposeWith the problem of environment and energy becoming prominent, energy conservation and emission reduction have received more attention. In the using process, buildings not only have the inherent energy consumption but also have the energy consumption of equipment that is installed for improving the indoor environment. This study aims to investigate how to reduce the energy consumption of buildings through utilizing natural resources.Design/methodology/approachThis paper briefly introduces three objective functions in the building energy-saving model: building energy consumption, natural lighting and natural ventilation. Genetic algorithm was used to optimize the building parameters to achieve energy conservation and comfort improvement. Then a two-story rental building was analyzed.FindingsThe genetic algorithm converged to Pareto optimal solution set after 10,000 times of iterations, which took 61024 s. The lowest energy consumption of the scheme that was selected from the 70 optimal solutions was 5580 W/(m2K), the lighting coefficient was 5.56% and Pressure Difference Pascal Hours (PDPH) was 6453 h; compared with the initial building parameters, the building energy consumption reduced by 3.40%, the lighting coefficient increased by 11.65% and PDPH increased by 9.54%.Originality/valueIn short, the genetic algorithm can effectively optimize the energy-saving parameters of buildings.

scholarly journals Parametrisation of the variety of human behaviour related to building energy consumption in the Town Energy Balance (SURFEX-TEB v. 8.2)

2017 ◽  
Vol 10 (7) ◽  
pp. 2801-2831 ◽  
Author(s):  
Robert Schoetter ◽  
Valéry Masson ◽  
Alexis Bourgeois ◽  
Margot Pellegrino ◽  
Jean-Pierre Lévy
Keyword(s):  
Energy Consumption ◽  
Energy Balance ◽  
Surface Energy ◽  
Surface Energy Balance ◽  
Urban Climate ◽  
Building Energy ◽  
Human Behaviour ◽  
Urban Surface ◽  
Building Energy Consumption ◽  
The Town

Abstract. The anthropogenic heat flux can be an important part of the urban surface energy balance. Some of it is due to energy consumption inside buildings, which depends on building use and human behaviour, both of which are very heterogeneous in most urban areas. Urban canopy parametrisations (UCP), such as the Town Energy Balance (TEB), parametrise the effect of the buildings on the urban surface energy balance. They contain a simple building energy model. However, the variety of building use and human behaviour at grid point scale has not yet been represented in state of the art UCPs. In this study, we describe how we enhance the Town Energy Balance in order to take fractional building use and human behaviour into account. We describe how we parametrise different behaviours and initialise the model for applications in France. We evaluate the spatio-temporal variability of the simulated building energy consumption for the city of Toulouse. We show that a more detailed description of building use and human behaviour enhances the simulation results. The model developments lay the groundwork for simulations of coupled urban climate and building energy consumption which are relevant for both the urban climate and the climate change mitigation and adaptation communities.

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.

Numerical Study on Convention Island Building Energy Consumption of Nuclear Power Station

2011 ◽  
Vol 374-377 ◽  
pp. 630-634
Author(s):  
Nan Zhang ◽  
Qiong Li ◽  
Qing Lin Meng
Keyword(s):  
Energy Consumption ◽  
Nuclear Power Station ◽  
Air Conditioning ◽  
Nuclear Power ◽  
Numerical Study ◽  
Operating Mode ◽  
Building Energy ◽  
Building Energy Consumption ◽  
Power Station ◽  
Cool Load

The DeST is used to simulate the convention island building energy consumption of nuclear power station under different operating modes and building performance. Changing the operating mode is found to be an effective way to save the energy consumption of nuclear power station. The annual accumulative cool load will decrease 12% when the air conditioning operating temperature is changes from 35°C to 40°C in the season when air conditioning is used. And the annual accumulative cool load will decrease 5% when the air change rate increases 1 times/h in the season when mechanical ventilation is used.

Research on Energy Saving Diagnosis of Clean Air Conditioning System in Pharmaceutical Industry

2014 ◽  
Vol 977 ◽  
pp. 174-177
Author(s):  
Xin Li ◽  
Rui Ying Jia ◽  
Run Ping Niu
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Pharmaceutical Industry ◽  
Energy Saving ◽  
Air Conditioning ◽  
Building Energy ◽  
Building Energy Efficiency ◽  
Building Energy Consumption ◽  
Air Conditioning System ◽  
Clean Air

The purpose of building energy efficiency diagnosis was to find out the problems existing in the process of using energy and analysis the potential of energy saving to guide the owner who should improve the building energy efficiency as far as possible to reduce building energy consumption. This paper involves only the research on energy saving diagnosis of clean air conditioning system in pharmaceutical industry.

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