scholarly journals Design of Artificial Lighting in Broiler Housing

2020 ◽  
Vol 23 (4) ◽  
pp. 190-194
Author(s):  
Peter Morvai ◽  
Miroslav Žitňák ◽  
Jana Lendelová
Keyword(s):  
Light Intensity ◽  
Energy Savings ◽  
Energy Performance ◽  
Lighting System ◽  
Artificial Lighting ◽  
Fluorescent Lamps ◽  
Unit Costs ◽  
Lighting Intensity ◽  
Switching Mode ◽  
System Designs

AbstractThe work aim is to propose lighting system designs that would satisfy the broiler welfare in terms of intensity; wavelength; switching interval; and energy savings, and would help farmers to reduce the unit costs. BuildingDesign software with Wils 7.0.342 module was used to design suitable lighting, calculate and visualize it. By optimizing the required parameters and energy performance of system, four final designs were prepared with the appropriate evaluation with respect to the acquisition price and return on investment. The original lighting system included a combination of 68 pcs. of tungsten and fluorescent lamps with consumption of 2.17 kWh and a minimum illumination intensity of 7.02 lx. Measurements were conducted at 212 points of the control grid. Artificial lighting is the only light source in an environment of eco-friendly controlled farm. Based on the research analyses, there were proposed four lighting system alternatives with various light intensity; wavelength; switch-on interval; and energy savings. In terms of light intensity, all four designs meet the animal welfare requirements. The most advantageous alternative in the long term is design no. 4 with consumption of 0.734 kWh per one cycle (with energy savings of 66.17% in contrast to the original lighting), in which the intermittent switching mode showed a power savings of 56% and lighting intensity regulation of 40% while maintaining a minimum lighting intensity of 20 lx (total savings for switching and regulation reached up to 73.7%). By utilizing modern approaches, appropriate light colour and lighting quality suitable for broiler breeding were achieved.

scholarly journals A Supervisory Control Strategy for Improving Energy Efficiency of Artificial Lighting Systems in Greenhouses

Energies ◽  
2021 ◽  
Vol 14 (1) ◽  
pp. 202
Author(s):  
Gianluca Serale ◽  
Luca Gnoli ◽  
Emanuele Giraudo ◽  
Enrico Fabrizio
Keyword(s):  
Control Strategy ◽  
Light Emitting Diode ◽  
Cost Savings ◽  
Energy Performance ◽  
Lighting System ◽  
Light Emitting ◽  
Artificial Lighting ◽  
Lighting Control ◽  
Lighting Systems ◽  
Power Densities

Artificial lighting systems are used in commercial greenhouses to ensure year-round yields. Current Light Emitting Diode (LED) technologies improved the system efficiency. Nevertheless, having artificial lighting systems extended for hectares with power densities over 50W/m2 causes energy and power demand of greenhouses to be really significant. The present paper introduces an innovative supervisory and predictive control strategy to optimize the energy performance of the artificial lights of greenhouses. The controller has been implemented in a multi-span plastic greenhouse located in North Italy. The proposed control strategy has been tested on a greenhouse of 1 hectare with a lighting system with a nominal power density of 50 Wm−2 requiring an overall power supply of 1 MW for a period of 80 days. The results have been compared with the data coming from another greenhouse of 1 hectare in the same conditions implementing a state-of-the-art strategy for artificial lighting control. Results outlines that potential 19.4% cost savings are achievable. Moreover, the algorithm can be used to transform the greenhouse in a viable source of energy flexibility for grid reliability.

scholarly journals Integration of Natural and Artificial Light on Energy Efficiency of the Mega Bank Makassar Tower Building

2021 ◽  
Vol 4 (1) ◽  
pp. 71-80
Author(s):  
Isty Cahyani Ismail ◽  
Ramli Rahim ◽  
Baharuddin Hamzah
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Light Intensity ◽  
Energy Use ◽  
Energy Savings ◽  
Building Design ◽  
Artificial Light ◽  
Lighting System ◽  
Lighting Systems ◽  
Save Energy

One of the largest energy consumers in the world is buildings. The energy consumption comes from the lighting system. Energy use in buildings is generally 25% for lighting systems. The strategy used in building design is to reduce energy consumption while maintaining the best comfort in a building. The application of energy-saving concepts from the building sector is optimizing the lighting system by integrating natural and artificial lighting systems. This study aims to determine the light intensity in the integrated lighting system of natural and artificial manually and also to find out how much energy can be saved with the integrated lighting system manually. The research location is at the Mega Bank Makassar Tower Building. The research sample was selected by purposive sampling and the sixth floor was chosen as the research location. In this study, simulations were carried out using the DIAlux 4.13 program to integrate natural and artificial light and to calculate the amount of energy efficiency in the workspace. To obtain optimal light intensity and energy savings, a simulation was carried out by turning off half the light points in the workspace, especially the light points around the building openings. The simulation results show that the average integrated lighting quality meets the minimum lighting requirements and can save energy usage by up to 50%. Keywords: energy efficiency; integration lighting; workspace

scholarly journals Energy Savings through Integration of the Illumination Natural and Artificial, Using a System of Automatic Dimming: Case Study

2013 ◽  
Vol 372 ◽  
pp. 253-258 ◽  
Author(s):  
Daniele Milone ◽  
Salvatore Pitruzzella ◽  
Vincenzo Franzitta ◽  
Alessia Viola ◽  
Marco Trapanese
Keyword(s):  
Energy Savings ◽  
Electrical Energy ◽  
Lecture Hall ◽  
Lighting System ◽  
International Scientific Community ◽  
Artificial Lighting ◽  
Lighting Conditions ◽  
Glazed Surface ◽  
Surface Covering

The reduction of electrical energy consumption in buildings is a subject of great interest in the international scientific community. In buildings with a lot of available natural light, designed with large glazed surfaces, the artificial lighting system is often oversized and cannot be divided into segments to meet lighting demands during daylight hours.This article presents an experimental study, conducted in a university lecture hall that has a glazed surface covering the whole wall at one end, which provides a level of internal illumination that is only sufficient for the area next to the window itself, even when the outside lighting conditions are very bright. It is therefore necessary to turn on the artificial lighting system.The mathematical approach used in this paper has been successfully applied by the authors in other fields of science [1-2].Using an automatic dimmer system, the calibration of which is based on experimental measurements, the lighting is arranged in such a way as to illuminate the most disadvantaged areas of the room, and then to extend itself gradually to the whole of the room, over the period of time that the lecture hall is in use.

scholarly journals Design of Lighting System for Substation Area 13 LPG Arun With Lumen Calculation Method

2021 ◽  
Vol 2 (5) ◽  
Author(s):  
Enda Wista Sinuraya ◽  
Bambang Winardi ◽  
Agung Nugroho ◽  
Imam Santoso ◽  
Denis
Keyword(s):  
Calculation Method ◽  
Lighting Design ◽  
Intensity Level ◽  
Lighting System ◽  
Artificial Lighting ◽  
Accurate Design ◽  
Lighting Intensity ◽  
Design Result ◽  
User Comfort

Lighting is one of the important factors in designing space to support user comfort and safety. To carry out all activities that are in a room, an adequate lighting intensity is needed, namely in accordance with predetermined lighting standards, so in designing the lighting of a room it must be carried out with full accuracy, among others in terms of lamp selection, calculation of the number of lamps needed and setting the condition of the lights in illuminating the room. LPG Arun is one of the projects being worked on by PT. Engineering. One of the stages of the process is to design the intensity level of artificial lighting in the Electrical room building. In designing artificial lighting, DIALux 4.10 software is used. In this simulation, a more accurate design result is obtained because it can simulate in 3D. Also obtained the value of the intensity of light and the number of lights needed in the lighting. In this design the results are obtained where the artificial lighting design in each room is in accordance with the owner’s request standards.

Lighting energy performance determination in office environments through implementation of EN 15193-1 for Turkey

2021 ◽  
pp. 147715352098742
Author(s):  
FŞ Yilmaz
Keyword(s):  
System Design ◽  
Architectural Design ◽  
Office Buildings ◽  
Energy Requirements ◽  
System Control ◽  
Lighting System ◽  
Artificial Lighting ◽  
Design Alternatives ◽  
Lighting Energy ◽  
The Impact

Office buildings are building typologies where efficient and optimal use of lighting energy is crucial while providing comfortable visual environments. The purpose of this study is to explore the impact of diverse architectural design alternatives on lighting energy requirements and lighting energy saving possibilities through a case study. In this study, a total of 3888 design alternatives are investigated in a comparative way in terms of daylighting system design alternatives, artificial lighting system design scenarios, artificial lighting system control types and shading system control options. Introducing the adaptation process of the EN 15193-1:2017 standard for Turkey’s specific climatic and geographical conditions and considering diverse lighting design scenarios, results of this parametric study aim to underline the significance of architectural design strategies in office buildings for the reduction of lighting energy requirements.

scholarly journals Energy and Greenhouse Gas Savings for LEED-Certified U.S. Office Buildings

Energies ◽  
2021 ◽  
Vol 14 (3) ◽  
pp. 749
Author(s):  
John H. Scofield ◽  
Susannah Brodnitz ◽  
Jakob Cornell ◽  
Tian Liang ◽  
Thomas Scofield
Keyword(s):  
Greenhouse Gas ◽  
Energy Use ◽  
Energy Savings ◽  
Electric Energy ◽  
Building Energy ◽  
Energy Performance ◽  
Office Buildings ◽  
Ghg Emission ◽  
Site Energy ◽  
New Construction

In this work, we present results from the largest study of measured, whole-building energy performance for commercial LEED-certified buildings, using 2016 energy use data that were obtained for 4417 commercial office buildings (114 million m2) from municipal energy benchmarking disclosures for 10 major U.S. cities. The properties included 551 buildings (31 million m2) that we identified as LEED-certified. Annual energy use and greenhouse gas (GHG) emission were compared between LEED and non-LEED offices on a city-by-city basis and in aggregate. In aggregate, LEED offices demonstrated 11% site energy savings but only 7% savings in source energy and GHG emission. LEED offices saved 26% in non-electric energy but demonstrated no significant savings in electric energy. LEED savings in GHG and source energy increased to 10% when compared with newer, non-LEED offices. We also compared the measured energy savings for individual buildings with their projected savings, as determined by LEED points awarded for energy optimization. This analysis uncovered minimal correlation, i.e., an R2 < 1% for New Construction (NC) and Core and Shell (CS), and 8% for Existing Euildings (EB). The total measured site energy savings for LEED-NC and LEED-CS was 11% lower than projected while the total measured source energy savings for LEED-EB was 81% lower than projected. Only LEED offices certified at the gold level demonstrated statistically significant savings in source energy and greenhouse gas emissions as compared with non-LEED offices.

scholarly journals Minimal Monitoring of Improvements in Energy Performance after Envelope Renovation in Subsidized Single Family Housing in Madrid

2020 ◽  
Vol 13 (1) ◽  
pp. 235
Author(s):  
Fernando Martín-Consuegra ◽  
Fernando de Frutos ◽  
Ignacio Oteiza ◽  
Carmen Alonso ◽  
Borja Frutos
Keyword(s):  
Energy Efficiency ◽  
Energy Savings ◽  
Low Cost ◽  
Energy Performance ◽  
Quality Parameters ◽  
Urban Setting ◽  
Single Family ◽  
Nineteen Fifties ◽  
Environment Quality ◽  
Urban Complex

This study quantified the improvement in energy efficiency following passive renovation of the thermal envelope in highly inefficient residential complexes on the outskirts of the city of Madrid. A case study was conducted of a single-family terrace housing, representative of the smallest size subsidized dwellings built in Spain for workers in the nineteen fifties and sixties. Two units of similar characteristics, one in its original state and the other renovated, were analyzed in detail against their urban setting with an experimental method proposed hereunder for simplified, minimal monitoring. The dwellings were compared on the grounds of indoor environment quality parameters recorded over a period covering both winter and summer months. That information was supplemented with an analysis of the energy consumption metered. The result was a low-cost, reasonably accurate measure of the improvements gained in the renovated unit. The monitoring output data were entered in a theoretical energy efficiency model for the entire neighborhood to obtain an estimate of the potential for energy savings if the entire urban complex were renovated.

scholarly journals Energy Performance Assessment of Innovative Building Solutions Coming from Construction and Demolition Waste Materials

Materials ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1226
Author(s):  
Beatriz Fraga-De Cal ◽  
Antonio Garrido-Marijuan ◽  
Olaia Eguiarte ◽  
Beñat Arregi ◽  
Ander Romero-Amorrortu ◽  
...  
Keyword(s):  
Thermal Insulation ◽  
Energy Demand ◽  
Energy Savings ◽  
Flow Analysis ◽  
Weather Conditions ◽  
Energy Performance ◽  
Construction And Demolition Waste ◽  
The European Union ◽  
Demolition Waste ◽  
The Impact

Prefabricated solutions incorporating thermal insulation are increasingly adopted as an energy conservation measure for building renovation. The InnoWEE European project developed three technologies from Construction and Demolition Waste (CDW) materials through a manufacturing process that supports the circular economy strategy of the European Union. Two of them consisted of geopolymer panels incorporated into an External Thermal Insulation Composite System (ETICS) and a ventilated façade. This study evaluates their thermal performance by means of monitoring data from three pilot case studies in Greece, Italy, and Romania, and calibrated building simulation models enabling the reliable prediction of energy savings in different climates and use scenarios. Results showed a reduction in energy demand for all demo buildings, with annual energy savings up to 25% after placing the novel insulation solutions. However, savings are highly dependent on weather conditions since the panels affect cooling and heating loads differently. Finally, a parametric assessment is performed to assess the impact of insulation thickness through an energy performance prediction and a cash flow analysis.

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