Analysis of Electric Energy Consumption Patterns: A Case Study of a Real Life Office Building

2013 ◽  
Vol 330 ◽  
pp. 158-162 ◽  
Author(s):  
Jin Soo Han ◽  
Youn Kwae Jeong ◽  
Il Woo Lee
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Real Life ◽  
Electric Energy ◽  
Consumption Patterns ◽  
Office Building ◽  
Commercial Building ◽  
Total Energy Consumption ◽  
Electric Energy Consumption ◽  
Energy Consumption Patterns

Electric energy consumption shares a great portion of commercial building energy. Electric energy saving is essential to reduce total energy consumption in commercial buildings. To draw energy saving methods, it is necessary to monitor real energy consumption patterns and analyze the results. We monitor the lighting and non-lighting energy consumption of eleven zones in a real working office building every fifteen minutes during eleven months. We observe and analyze the monthly and daily energy consumption patterns of all zones and draw several feasible energy saving methods. Moreover, the lighting and occupancy are monitored simultaneously in detail to investigate the unnecessary energy consumption. It shows the possibility of a great amount of energy saving. Because we analyze the energy consumption patterns in all zones, the drawn energy saving methods are applicable to the current building with some added infrastructure and expandable to other similar office buildings. Our result is expected to contribute to reducing the energy consumption in buildings.

Energy-saving and environmentally friendly electrodeposition of γ-MnO2

RSC Advances ◽  
2014 ◽  
Vol 4 (32) ◽  
pp. 16512-16516 ◽  
Author(s):  
Jing Tang ◽  
Hui-Min Meng ◽  
Liang Liang Huang
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Electric Energy ◽  
Environmentally Friendly ◽  
Electric Energy Consumption

The electric energy consumption of the electrolysis with Pt/C GDE can save 65.6–61.06% compared to traditional cathodes at 80 A m−2.

scholarly journals Case analysis of energy consumption of the existing office building in the severe cold region

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Ma Chuan ◽  
Liu Jiajia ◽  
Cui Guangfu ◽  
R.N. Manglink
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Water System ◽  
Office Buildings ◽  
Office Building ◽  
General Situation ◽  
Cold Region ◽  
Total Energy Consumption ◽  
Energy Saving Potential ◽  
Consumption Situation

Abstract With the relevant requirements of energy-saving and green buildings put forward by our country, carrying out the building energy consumption analysis is the premise and foundation of implementing energy-saving improvement of the existing buildings. Nowadays, modern office buildings, whose energy consumption structure and proportion are relatively stable, are widely used. The energy review work of an existing office building in severe cold region is carried out. Investigation and statistics on the general situation of buildings, the general situation of energy consumption and water system consumption and the total energy consumption are implemented. Based on the audit, the energy consumption situation and characteristics in a certain year are analysed. According to the characteristics of energy-using structure, the energy-saving potential of buildings is analysed, and the reasonable energy-saving opinions and suggestions are proposed to provide theoretical support for the energy-saving management of office buildings in severe cold areas.

scholarly journals PENGGUNAAN VARIABLE SPEED DRIVE PADA MOTOR INDUKSI UNTUK PENGHEMATAN KONSUMSI ENERGI LISTRIK

2020 ◽  
Vol 22 (2) ◽  
Author(s):  
Abdul Multi ◽  
Ervien Febryane
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Induction Motor ◽  
Electric Energy ◽  
Variable Speed ◽  
Variable Speed Drive ◽  
Electric Energy Consumption ◽  
Before And After ◽  
Reduction Of Energy Consumption ◽  
Cage Induction Motor

Variable speed drive (VSD) is used not only for controlling the speed but also for saving the electric energyconsumption. In this research VSD is applied to 3 phase squirrel cage induction motor used for water pumping inthe industry. VSD is needed to be applied to induction motors because these motors are the largest electricconsumed. Measurement and calculation are performed in the two conditions, before and after attaching VSD inthe motor. Electric quantities are obtained by measurement in the input and in the output of VSD. While energyconsumption and consumption cost are obtained by calculation. Finally, calculation of energy saving and costsaving are perfomed by comparing those two conditions. Aplication of VSD in the induction motor has advantagesfor saving electric energy consumption dan making it last longer. The energy saving and cost saving per year result1.003.984,8 kWh and IDR 732.908.904 respectlively. The longer life is caused by reduction of energy consumption.

scholarly journals PERKIRAAN KONSUMSI ENERGI LISTRIK 2013 HINGGA 2030 ACEH TAMIANG

2017 ◽  
Vol 7 (2) ◽  
pp. 85
Author(s):  
Rahmad Purnama ◽  
Ahmad Agus Setiawan ◽  
Suhanan Suhanan
Keyword(s):  
Energy Consumption ◽  
Research Method ◽  
Electric Energy ◽  
Electrical Energy ◽  
Electrical Energy Consumption ◽  
Total Energy Consumption ◽  
Electric Energy Consumption ◽  
Use Of Data ◽  
End Use ◽  
Constant Prices

Aceh Tamiang is the province o f Aceh. The use of electrical energy is still not resolved in this case because of the lack of appropriate policies that can be taken because there is still no research how the amount of electrical energy consumption in Aceh Tamiang. the research method used is a model based approach to End Use of data population and households, the data GDP at constant prices, and consumption of electrical energy. All data is sourced from related agencies such as Bappeda Aceh Tamiang Data PLN Kuala Simpang branch. Forecasting electric energy consumption in Aceh on five sectors is the year 2013 was 48.8 GWh, while, in 2030 total energy consumption reached 76.5 GWh, this is an increase of 63.7 percent. The household sector accounted for the largest increase in consumption compared with other sectors for each year.

scholarly journals Energy Audit and Feasibility of Solar PV Energy System: Case of a Commercial Building

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Sylvester William Chisale ◽  
Patrick Mangani
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Alternative Energy ◽  
Electric Energy ◽  
Energy System ◽  
Observation Data ◽  
Mixed Method Research ◽  
Solar Pv ◽  
Commercial Building ◽  
Energy Audit

Energy situation in Malawi is continuing facing critical challenges to satisfy the existing demand. However, energy consumption and energy conservation studies have been neglected to help overcome this problem. In this paper, electric energy audit was conducted for a commercial building in Mchinji, Malawi, in order to identify energy-saving opportunities. The study employed a mixed method research which involved a series of surveys, observation, data collection, and analysis. The current energy consumption was determined and compared with the proposed energy consumption after replacing some equipment. The proposed system saved up to 33.46% of energy. The study also suggested behavior change towards energy saving. Additionally, an alternative energy system was also suggested. Thus, the HOMER software was employed to design, optimize, and analyze a solar-battery-grid-connected energy system. The proposed system has a simple payback period of 9.8 years. The system’s cost of energy was estimated as 0.0372 $/kWh, and the capital cost was $ 150,887.

Ecological Sustainability of Fiber Optic Solar Lighting in the Future of the State of Qatar

2010 ◽  
Author(s):  
Mohammad AhsanShaikh ◽  
Musbah S. Mahfoud
Keyword(s):  
Energy Consumption ◽  
Fiber Optics ◽  
Optical Fibers ◽  
Fiber Optic ◽  
Electric Energy ◽  
Electrical Energy ◽  
The State ◽  
Total Energy Consumption ◽  
Electric Energy Consumption ◽  
Solar Lighting

The use of electric lighting in our homes and our workplaces stands for a significant portion of the society’s electric energy consumption. Furthermore, generating such electricity leads to the production of greenhouse gases. At the same time as the electricity is coming through our lamps inside our houses, an overflow of light is flowing down from the sky and hits the exterior of the same houses. At almost any day of the year, the daylight is superior in both the illumination level and quality compared to the artificial light we are using for our everyday tasks. A technology capable of collecting this abundant sunlight and distributing it, via optical fibers, into the interior of a building will be of great benefit. Sunlight is an abundant and infinite source of energy that is being underutilized in Qatar. The state’s climate is sunny most of the year, with temperatures ranging from 12°C to 48°C, and thus the solar source of energy is abundant. Therefore, it is of an economical benefit for the state to harvest and utilize this energy source in every way possible. In Qatar, a large part of electricity is used for indoor lighting during daytime, accounting for 10% of the total electric energy required for buildings. In many facilities, this percentage is even higher. For example, illumination in an office space of 400 m2 accounts for approximately 40% of the total energy consumption of the space. In fact, Qatar is recognized amongst the world’s largest consumers of energy per capita. According to the United Nations Statistic Division, relative to the size of Qatar’s economy, the country on a whole uses twice the amount of energy as the nations of Germany or Japan. As a partial remedy to reduce the consumption of electrical energy, Qatar can take advantage of its sunny climate, and thus it is possible to collect and focus sunlight on optic-fiber cables that transfer the light to indoor rooms, buildings and stores. In the present work, we wanted to cast some light on fiber optic daylighting and its potential use in a very sunny and relatively hot environment, such as that in Qatar. The main goal of this project was to explore the use of a lighting system based on fiber optics as the main light source.

Energy Consumption of a Sailing Quad-Maran Automated Vessel

2018 ◽  
Author(s):  
Chenfang Zhang ◽  
Sharath Srinivasamurthy ◽  
Shinichi Kitamura ◽  
Norikazu Masuda ◽  
Choong Sik Park ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Remote Control ◽  
Energy Saving ◽  
Electric Energy ◽  
Water Tank ◽  
Electric Energy Consumption ◽  
Propulsion Performance ◽  
Ishikawa Prefecture ◽  
Oyster Farms

An innovative electrically operated automated Quad-maran is developed in this study. The vessel consists of 4 hulls and each hull is capable of yawing independently around its axis. The vessel is expected to sail and carry out environmental measurements automatically in waters like oyster farms, with an outstanding efficiency and brilliant energy-saving characteristics. An elemental research was first carried out to investigate the vessel’s resistance and propulsion performance as well as its electric energy consumption during sailing. Water tank tests were implemented on the actual hulls. Later, sea trials using the whole vessel were carried out in Ishikawa Prefecture, Japan, where the vessel sailed under remote control from a PC far away. Pool trials were also carried out. In this paper, detailed information is given on the design and working features of the Quad-maran automated vessel. Results of the tests and trials are evaluated, and the interference between hulls observed during tests is discussed. The electric energy consumption and as well as the relating efficiency are calculated and discussed.

Measurements of electric energy consumption in a low energy building in Slovak climatic conditions

2012 ◽  
Vol 7 (3) ◽  
pp. 23-32 ◽  
Author(s):  
Miloslav Bagoňa ◽  
Dušan Katunský ◽  
Martin Lopušniak ◽  
Marián Vertaľ
Keyword(s):  
Energy Consumption ◽  
Electric Energy ◽  
Climatic Conditions ◽  
Low Energy ◽  
Electric Energy Consumption
Sign in / Sign up

Export Citation Format

Share Document