Minimizing energy consumption for artificial lighting in a typical classroom of a Hellenic public school aiming for near Zero Energy Building using LED DC luminaires and daylight harvesting systems

2019 ◽  
Vol 194 ◽  
pp. 201-217 ◽  
Author(s):  
L.T. Doulos ◽  
A. Kontadakis ◽  
E.N. Madias ◽  
M. Sinou ◽  
A. Tsangrassoulis
Keyword(s):  
Energy Consumption ◽  
Public School ◽  
Zero Energy ◽  
Artificial Lighting ◽  
Zero Energy Building ◽  
Harvesting Systems ◽  
Daylight Harvesting

scholarly journals A Review on Zero Energy Building Using LED DC Luminaries and Daylight Harvesting Systems

2021 ◽  
pp. 26-30
Author(s):  
Gaurav Patil ◽  
Shravan Vishwakarma
Keyword(s):  
Energy Consumption ◽  
Energy Resources ◽  
Construction Sector ◽  
Zero Energy ◽  
Zero Energy Building ◽  
Energy Needs ◽  
Wide Range ◽  
Harvesting Systems ◽  
Daylight Harvesting ◽  
Global Energy Consumption

The construction sector currently accounts for about a third of global energy consumption and a large part of this consumption is directly attributed to the design and construction of buildings. A wide range of measures has been adopted and implemented to actively promote better energy efficiency in buildings, including the ZEB (Zero Energy Building) concept, which is a realistic solution for reducing CO2 emissions.The zero-energy construction is discussed in this article. Energy resources have been described. NZEB's goal is not only to minimize the building's energy consumption by using passive design methods but also to design a building that reconciles energy needs with active techniques and renewable technologies.

scholarly journals Illuminance levels based on different sky conditions by considering daylight harvesting

2020 ◽  
Vol 19 (3) ◽  
pp. 1219
Author(s):  
Nik Sahidah Nik Ahmad ◽  
N. H. Radzi ◽  
Mohd Noor Abdullah
Keyword(s):  
Energy Consumption ◽  
Greenhouse Effect ◽  
Weather Conditions ◽  
Lighting System ◽  
Artificial Lighting ◽  
Harvesting Systems ◽  
Illuminance Level ◽  
Sky Conditions ◽  
Daylight Harvesting ◽  
Overcast Sky

Daylight Harvesting Systems (DHS) offer the most effective and significant to reduce energy consumption. In the lighting system, there are various problems which include waste of energy consumption, inappropriate lighting and increasing greenhouse effect. Therefore, the waste of energy consumption should be reduced by controlling the dimming levels of artificial lighting according to the standard thus reducing the greenhouse effect. Hence, this paper considered the daylight adaptive for the lighting system to determine the dimming level and illuminance level for the office room. The simulation has been carried out using DIALux simulation lighting software to simulate the average daylight and average illuminance level with different conditions sky, which is clear, average, and overcast sky. Based on the result, the illuminance level has complied with the European Standard EN12464-1. Furthermore, the presence of daylight and weather conditions plays an essential role in the lighting system. The illuminance and dimming levels are different depending on the time and type of sky condition at that time. Therefore, the daylight adaptive in the lighting system can reduce the use of artificial light in the room.

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 Capabilities of Nearly Zero Energy Building (nZEB) Electricity Generation to Charge Electric Vehicle (EV) Operating in Real Driving Conditions (RDC)

Energies ◽  
2021 ◽  
Vol 14 (22) ◽  
pp. 7591
Author(s):  
Wojciech Cieslik ◽  
Filip Szwajca ◽  
Jedrzej Zawartowski ◽  
Katarzyna Pietrzak ◽  
Slawomir Rosolski ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Electric Vehicle ◽  
Electric Vehicles ◽  
Renewable Energy Sources ◽  
Energy Transition ◽  
Target Range ◽  
Zero Energy ◽  
Zero Energy Building ◽  
Driving Conditions ◽  
Almost All

The growing number of electric vehicles in recent years is observable in almost all countries. The country’s energy transition should accompany this rise in electromobility if it is currently generated from non-renewable sources. Only electric vehicles powered by renewable energy sources can be considered zero-emission. Therefore, it is essential to conduct interdisciplinary research on the feasibility of combining energy recovery/generation structures and testing the energy consumption of electric vehicles under real driving conditions. This work presents a comprehensive approach for evaluating the energy consumption of a modern public building–electric vehicle system within a specific location. The original methodology developed includes surveys that demonstrate the required mobility range to be provided to occupants of the building under consideration. In the next step, an energy balance was performed for a novel near-zero energy building equipped with a 199.8 kWp photovoltaic installation, the energy from which can be used to charge an electric vehicle. The analysis considered the variation in vehicle energy consumption by season (winter/summer), the actual charging profile of the vehicle, and the parking periods required to achieve the target range for the user.

scholarly journals Evaluation of Primary Energy from Photovoltaics for a Nearly Zero Energy Building (nZEB): A Case Study in Lithuania

Proceedings ◽  
2020 ◽  
Vol 51 (1) ◽  
pp. 5
Author(s):  
Rokas Tamašauskas ◽  
Jolanta Šadauskienė ◽  
Dorota Anna Krawczyk ◽  
Violeta Medelienė
Keyword(s):  
Energy Consumption ◽  
Primary Energy ◽  
Primary Energy Consumption ◽  
Renewable Energy Resources ◽  
Zero Energy ◽  
Energy Factor ◽  
Average Value ◽  
Pv Systems ◽  
Zero Energy Building ◽  
The Difference

The European Commission has set the target in the Energy Efficiency Directive (EED) to reduce EU primary energy consumption in 2020 by 20%. A crucial aspect of the overall assessment of energy saving measures that affect electricity demand is the primary energy factor that is used for evaluation of primary energy consumption from renewable energy resources in a Nearly Zero Energy Building (nZEB). The analysis of the resources has revealed that energy from photovoltaics is evaluated using different methods. Therefore, this article’s aim is to investigate and evaluate the primary energy factor of energy from photovoltaics using the data of produced and consumed energy of 30 photovoltaic (PV) systems operating in Lithuania. Investigation results show that the difference of non-renewable primary energy factor between the PV systems due to capacities is 35%. In addition, the results of the studies show that the average value of the primary energy factor of PV systems in Lithuania is 1.038.

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.

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