Research on the Design and Construction of Zero-Energy Building

2014 ◽  
Vol 587-589 ◽  
pp. 224-227
Author(s):  
Zhi Jun Zhang
Keyword(s):  
Energy Consumption ◽  
Carbon Emissions ◽  
Fossil Fuels ◽  
Developed Countries ◽  
Net Energy ◽  
Zero Energy ◽  
Zero Energy Building ◽  
Net Zero ◽  
Zero Net Energy ◽  
Zero Energy Buildings

A zero-energy building, also known as a zero net energy (ZNE) building, net-zero energy building (NZEB), or net zero building, is a building with zero net energy consumption and zero carbon emissions annually. Buildings that produce a surplus of energy over the year may be called “energy-plus buildings” and buildings that consume slightly more energy than they produce are called “near-zero energy buildings” or “ultra-low energy houses”. Traditional buildings consume 40% of the total fossil fuel energy in the US and European Union and are significant contributors of greenhouse gases. The zero net energy consumption principle is viewed as a means to reduce carbon emissions and reduce dependence on fossil fuels and although zero energy buildings remain uncommon even in developed countries, they are gaining importance and popularity.

scholarly journals Optimization of Energy Consumption in Net-Zero Energy Buildings with Increasing Thermal Comfort of Occupants

2020 ◽  
Vol 2020 ◽  
pp. 1-17 ◽  
Author(s):  
Mohsen Mahdavi Adeli ◽  
Said Farahat ◽  
Faramarz Sarhaddi
Keyword(s):  
Energy Consumption ◽  
Thermal Comfort ◽  
General Definition ◽  
Zero Energy ◽  
Zero Energy Building ◽  
Net Zero Energy ◽  
Net Zero Energy Building ◽  
Net Zero ◽  
Net Zero Energy Buildings ◽  
Zero Energy Buildings

Residential and commercial buildings consume approximately 60% of the world’s electricity. It is almost impossible to provide a general definition of thermal comfort, because the feeling of thermal comfort is affected by varying preferences and specific traits of the population living in different climate zones. Considering that no studies have been conducted on thermal satisfaction of net-zero energy buildings prior to this date, one of the objectives of the present study is to draw a comparison between the thermal parameters for evaluation of thermal comfort of a net-zero energy building occupants. In so doing, the given building for this study is first optimized for the target parameters of thermal comfort and energy consumption, and, hence, a net-zero energy building is formed. Subsequent to obtaining the acceptable thermal comfort range, the computational analyses required to determine the temperature for thermal comfort are carried out using the Computational Fluid Dynamics (CFD) model. The findings of this study demonstrate that to reach net-zero energy buildings, solar energy alone is not able to supply the energy consumption of buildings and other types of energy should also be used. Furthermore, it is observed that optimum thermal comfort is achieved in moderate seasons.

scholarly journals The use of BIM to achieve zero energy building

2021 ◽  
pp. 59-65
Author(s):  
А. Khassan ◽  
V.I. Donenko ◽  
O.L. Ischenko
Keyword(s):  
Information Modeling ◽  
Net Energy ◽  
Zero Energy ◽  
Zero Energy Building ◽  
Net Zero Energy ◽  
Energy Needs ◽  
Net Zero Energy Building ◽  
Net Zero ◽  
Building Information ◽  
Zero Net Energy

This Article introduces the advantage of using Building Information Modeling (BIM) technology to achieve the Zero Energy (ZE). A zero-energy building (ZE), also is known as a Zero Net Energy (ZNE) building, or Net-Zero Energy Building (NZEB). Net zero building is a building which is zero net energy consumption, which means that the total amount of energy used by the building on an annual basis is equal to the amount of renewable energy created on the site. A net Zero-Energy Building (ZEB) is a residential or commercial building with greatly reduced energy needs through efficiency gains such that the balance of energy needs can be supplied with renewable technologies. In the concept of the net ZEB is a building which could reduce energy needs through efficiency and gain that balance of the energy needs via different renewable technologies. This paper will touch the necessity of integrating solar panels and wind energy design with BIM (Building Information Modeling) and how could that lead to achieve and reach the ZNEB (Zero Net Energy Building). The article will discuss the gap between modeling tools in energy and the achievement of sustainable features in models that produce for best design results and construction material in the project by using BIM (Building Information Modeling) to reach the ZNEB (Zero Net Energy Building). Keywords: Zero Net Energy (ZNE); Zero Energy Building; Zero Energy; Net-Zero Energy Building (NZEB); Zero-Energy Building (ZEB); Building Information Modelling (BIM)

Study of effective factors in the design of zero energy buildings in arid climate (case of Isfahan City)

2018 ◽  
Vol 8 (1) ◽  
pp. 211-221
Author(s):  
Negar Aminoroayaei ◽  
Bahram Shahedi
Keyword(s):  
Fossil Fuels ◽  
Arid Climate ◽  
Zero Energy ◽  
Factors Affecting ◽  
Zero Energy Building ◽  
Cost Of Energy ◽  
Current Century ◽  
Increase Productivity ◽  
Save Energy ◽  
Zero Energy Buildings

In the current century, a suitable strategy is concerned for optimal consumption of energy, due to limited natural resources and fossil fuels for moving towards sustainable development and environmental protection. Given the rising cost of energy, environmental pollution and the end of fossil fuels, zero-energy buildings became a popular option in today's world. The purpose of this study is to investigate the factors affecting the design of zero-energy buildings, in order to reduce energy consumption and increase productivity, including plan form, climatic characteristics, materials, coverage etc. The present study collects the features of zero-energy building in Isfahan, which is based on the Emberger Climate View in the arid climate, by examining the books and related writings, field observations and using a descriptive method, in the form of qualitative studies. The results of the research showed that some actions are needed to save energy and, in general, less consumption of renewable energy by considering the climate and the use of natural conditions.

scholarly journals Optimization of Performance Parameter Design and Energy Use Prediction for Nearly Zero Energy Buildings

Energies ◽  
2018 ◽  
Vol 11 (12) ◽  
pp. 3252 ◽  
Author(s):  
Xiaolong Xu ◽  
Guohui Feng ◽  
Dandan Chi ◽  
Ming Liu ◽  
Baoyue Dou
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Energy Demand ◽  
Maximum Relative Error ◽  
Performance Parameters ◽  
Zero Energy ◽  
Saving Ratio ◽  
Zero Energy Building ◽  
Artificial Neural ◽  
Zero Energy Buildings

Optimizing key parameters with energy consumption as the control target can minimize the heating and cooling needs of buildings. In this paper we focus on the optimization of performance parameters design and the prediction of energy consumption for nearly Zero Energy Buildings (nZEB). The optimal combination of various performance parameters and the Energy Saving Ratio (ESR)are studied by using a large volume of simulation data. Artificial neural networks (ANNs) are applied for the prediction of annual electrical energy consumption in a nearly Zero Energy Building designs located in Shenyang (China). The data of the energy demand for our test is obtained by using building simulation techniques. The results demonstrate that the heating energy demand for our test nearly Zero Energy Building is 17.42 KW·h/(m2·a). The Energy Saving Ratio of window-to-wall ratios optimization is the most obvious, followed by thermal performance parameters of the window, and finally the insulation thickness. The maximum relative error of building energy consumption prediction is 6.46% when using the artificial neural network model to predict energy consumption. The establishment of this prediction method enables architects to easily and accurately obtain the energy consumption of buildings during the design phase.

scholarly journals Techno Economic Evaluation and Feasibility Analysis of a Hybrid Net Zero Energy Building in Pakistan: A Case Study of Hospital

2021 ◽  
Vol 9 ◽  
Author(s):  
Saba Arif ◽  
Juntakan Taweekun ◽  
Hafiz Muhammad Ali ◽  
Thanansak Theppaya
Keyword(s):  
Economic Evaluation ◽  
Payback Period ◽  
Zero Energy ◽  
Hybrid Microgrid ◽  
Zero Energy Building ◽  
Net Zero Energy ◽  
Net Zero Energy Building ◽  
Net Zero ◽  
Net Zero Energy Buildings ◽  
Zero Energy Buildings

The current study is an economic evaluation and feasibility study of hybrid microgrid Net Zero Energy Buildings in Pakistan. A Net Zero Energy approach is proposed for a two-story hospital building situated in Taxila, Pakistan. Consequently, to design a hybrid Net Zero Energy Building, the solar radiation potential of the subject location and electricity usage of the hospital are estimated. The proposed hybrid microgrid Net Zero Energy Building comprises photovoltaic modules and converters. However, the thermal load is computed as a grid-connected hybrid system. Economic evaluation is performed by using economic indicators of the net present cost and the payback period. Also, initial and operational costs are determined, to determine the profitability of the project. Results show that the analysis is a cost-effective approach and has a payback period of 2.53y. Additionally, the per-unit cost of electricity is reduced to 0.12 USD/kWh. Moreover, the energy produced by a hybrid system is 10.24% more economical than that of the pre-working grid system. Results explain the reduction in the cost of energy and profit margin in electricity generation and the increase in electricity production and feasibility of hybrid Net Zero Energy Buildings in Pakistan. Research will help to develop an approach toward an IEA task 47 in Pakistan with the possible development of simulation-based installations of Net Zero Energy Buildings in the health sector in Pakistan.

scholarly journals Research on a Systematical Design Method for Nearly Zero-Energy Buildings

2019 ◽  
Vol 11 (24) ◽  
pp. 7032 ◽  
Author(s):  
Ji Li ◽  
Wei Xu ◽  
Ping Cui ◽  
Biao Qiao ◽  
Siyang Wu ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Architectural Design ◽  
Design Method ◽  
Performance Based Design ◽  
Building Industry ◽  
Heat Sources ◽  
Zero Energy ◽  
Zero Energy Building ◽  
The Impact ◽  
Zero Energy Buildings

As a result of the impact of energy consumption, research on ultra-low energy, nearly zero-energy, and zero energy buildings has been conducted in China. However, the design of the nearly zero-energy building is flexible; the traditional architectural design method is not fully applicable to nearly zero-energy buildings. The paper proposed a performance-based design method based on overall energy consumption and progress for the nearly zero-energy building. The design process of the relevant cases was also analyzed. The factors of cold and heat sources, environment, and renewable energy were combined to make a comprehensive analysis to get the optimal scheme of the nearly zero-energy building in the case. In general, the performance-based design method has a certain guiding significance for the design of nearly zero-energy buildings and certainly promotes the expansion of the nearly zero-energy building industry in China.

scholarly journals Advances Toward a Net-Zero Global Building Sector

2020 ◽  
Vol 45 (1) ◽  
pp. 227-269 ◽  
Author(s):  
Diana Ürge-Vorsatz ◽  
Radhika Khosla ◽  
Rob Bernhardt ◽  
Yi Chieh Chan ◽  
David Vérez ◽  
...  
Keyword(s):  
New York ◽  
Building Materials ◽  
Embodied Energy ◽  
Zero Energy ◽  
Building Sector ◽  
Zero Energy Building ◽  
Recent Advances ◽  
Net Zero ◽  
The World ◽  
Zero Energy Buildings

The building sector is responsible for 39% of process-related greenhouse gas emissions globally, making net- or nearly-zero energy buildings pivotal for reaching climate neutrality. This article reviews recent advances in key options and strategies for converting the building sector to be climate neutral. The evidence from the literature shows it is possible to achieve net- or nearly-zero energy building outcomes across the world in most building types and climates with systems, technologies, and skills that already exist, and at costs that are in the range of conventional buildings. Maximizing energy efficiency for all building energy uses is found as central to net-zero targets. Jurisdictions all over the world, including Brussels, New York, Vancouver, and Tyrol, have innovated visionary policies to catalyze themarket success of such buildings, with more than 7 million square meters of nearly-zero energy buildings erected in China alone in the past few years. Since embodied carbon in building materials can consume up to a half of the remaining 1.5°C carbon budget, this article reviews recent advances to minimize embodied energy and store carbon in building materials.

A New Metric for Net-Zero Carbon Buildings

2007 ◽  
Author(s):  
Siir Kilkis
Keyword(s):  
Carbon Emissions ◽  
Negative Impact ◽  
Supply And Demand ◽  
Zero Energy ◽  
Global Sustainability ◽  
Zero Energy Building ◽  
Net Zero Energy ◽  
Net Zero Energy Building ◽  
Net Zero ◽  
Zero Carbon

In this study a new carbon equivalency metric was developed in order to quantify the compound carbon emissions that buildings are responsible in the built environment. This metric first analyses the rationale about the management of exergy balance among supply and demand involved in satisfying building power and energy loads. Then using the degree of the rationale found, direct carbon emissions from the building and avoidable secondary carbon emissions that the building is responsible due to exergy mismatches are calculated. Based on this metric a net-zero carbon building definition was introduced and its advantages for quantifying the actual impact of buildings on global sustainability were discussed in comparison to net-zero energy building and carbon neutral building concepts. A case study for an example net-zero energy building is presented, which reveals that the new carbon equivalency metric can indicate whether the building is actually environmentally neutral or not. Results show that the example building has negative impact on environment and global sustainability in terms of carbon emissions even though it is rated a net-zero building. This paper also discusses that although another new net-zero exergy building definition may reduce the shortcomings of the net-zero building definition, only the net-zero carbon building metric may accurately rate the environmental impact of buildings. Beyond carbon emissions from buildings, the same metric can be used for any variety of greenhouse emissions and sectors.

scholarly journals A Review on Various Designing Techniques Used for Net Zero Energy Buildings

2021 ◽  
pp. 22-25
Author(s):  
Rohit Malviya ◽  
Shravan Vishwakarma
Keyword(s):  
Energy Demand ◽  
Optimized Design ◽  
Zero Energy ◽  
Zero Energy Building ◽  
Net Zero Energy ◽  
Net Zero ◽  
Viable Solution ◽  
Specific Objective ◽  
Net Zero Energy Buildings ◽  
Zero Energy Buildings

Net-zero energy buildings (NZEBs) were proposed as a viable solution for reducing building energy usage and contamination emission levels. To achieve the desired specific objective, the setups and abilities of the deployed RES in NZEBs should be carefully chosen. The goal of this project is to develop an optimized design approach for a zero-energy building that takes into account the building's usage of energy. The continuous expansion of international energy demand as a result of industrialization and growing populations is presently a major source of concern.

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