scholarly journals Mathematical modeling of electric consumption of the gas cooling process

2021 ◽  
Vol 264 ◽  
pp. 04088
Author(s):  
Oybek Ishnazarov ◽  
Ural Hoshimov
Keyword(s):  
Electric Energy ◽  
Electrical Energy ◽  
Air Cooling ◽  
Electrical Energy Consumption ◽  
Cooling Process ◽  
Factors Influencing ◽  
Cooling Devices ◽  
Gas Cooling ◽  
The Mathematical Model ◽  
Main Compressor

In the article, the possibility of determining the consumption of electrical energy by gas air cooling devices. Special attention is paid to the processing of experimental results. There are some assumptions in the mathematical model that do not affect the final result. The factors influencing the consumption of electric energy by gas air coolers are given. It is stated that the ambient temperature and gas pressure significantly affect the consumption of electrical energy. Thus, based on experimental data, a model of electrical energy consumption by gas air cooling devices of main compressor stations has been obtained.

scholarly journals AUDIT ENERGI PADA SEBUAH HOTEL

2012 ◽  
Vol 16 (3) ◽  
pp. 131
Author(s):  
Didik Ariwibowo
Keyword(s):  
Energy Consumption ◽  
Air Conditioning ◽  
Energy Savings ◽  
Electric Energy ◽  
Electrical Energy ◽  
Hot Water ◽  
Electrical Energy Consumption ◽  
Energy Audit ◽  
Electric Energy Consumption ◽  
Pumping System

Didik Ariwibowo, in this paper explain that energy audit activities conducted through several phases, namely: the initial audit, detailed audit, analysis of energy savings opportunities, and the proposed energy savings. Total energy consumed consists of electrical energy, fuel, and materials in this case is water. Electrical energy consumption data obtained from payment of electricity accounts for a year while consumption of fuel and water obtained from the payment of material procurement. From the calculation data, IKE hotels accounted for 420.867 kWh/m2.tahun, while the IKE standards for the hotel is 300 kWh/m2.tahun. Thus, IKE hotel included categorized wasteful in energy usage. The largest energy consumption on electric energy consumption. Largest electric energy consumption is on the air conditioning (AC-air conditioning) that is equal to 71.3%, and lighting and electrical equipment at 27.28%, and hot water supply system by 4.44%. Electrical energy consumption in AC looks very big. Ministry of Energy and Mineral Resources of the statutes, the profile of energy use by air conditioning at the hotel by 48.5%. With these considerations in the AC target for audit detail as the next phase of activity. The results of a detailed audit analysis to find an air conditioning system energy savings opportunities in pumping systems. Recommendations on these savings is the integration of automation on the pumping system and fan coil units (FCU). The principle of energy conservation in the pumping system is by installing variable speed drives (VSD) pump drive motor to adjust speed according to load on the FCU. Load variations FCU provide input on the VSD pumps to match. Adaptation is predicted pump can save electricity consumption up to 65.7%. Keywords: energy audit, IKE, AC

scholarly journals Study of Air and Water Evaporative Cooling Process in Air Cooling Devices

2020 ◽  
Vol 128 (3) ◽  
pp. 61-64
Author(s):  
B. A. Absadikov ◽  
◽  
Sh. K. Agzamov ◽  
Keyword(s):  
Evaporative Cooling ◽  
Air Cooling ◽  
Cooling Process ◽  
Cooling Devices

scholarly journals Gender Influence on the Household Electrical Energy Consumption Behavior

2018 ◽  
Vol 248 ◽  
pp. 03001
Author(s):  
Maria Isfus Senjawati ◽  
Lusi Susanti ◽  
Hilma Raimona Zadry ◽  
Prima Fithri
Keyword(s):  
Energy Consumption ◽  
Consumer Behavior ◽  
Psychological Factors ◽  
Energy Savings ◽  
Electric Energy ◽  
Electrical Energy ◽  
Partial Least Square ◽  
Least Square ◽  
Equation Modeling ◽  
Electrical Energy Consumption

Increased energy consumption can lead to depletion of fossil energy reserves that can pose a threat to energy supply in Indonesia. One way to increase the intensity of energy savings is to make changes in consumer behavior. The development of gender roles, abilities, and attention led most researchers to argue that women are more consistent in attention to environmental change than men. Women are more concerned with environmental quality and participate in environmental activities. Thus, this research tries to determine the influence of psychological factors on the behavior of household electrical energy consumption in term of gender differences. This study used questionnaires distributed using Google Docs to household electrical respondents several in Indonesia. Referring to ABC (Antecedents-Behaviour-Consequences) model of consumer behavior, the total of 808, questionnaires from 526 male respondents and 282 female respondents were successfully collected. The data were processed by the Partial Least Square Equation Modeling Model (SEM-PLS) using Smart-PLS software. The study concluded that,if given the consequences, women have higher influence to the behavior of electrical energy consumption than men. Overall psychological factors have a positive and significant influence on the behavior of electric energy consumption in Indonesia.

scholarly journals Perencanaan Pembangkit Listrik Tenaga Surya Hybrid Pada Area Parkir Gedung Dinas Cipta Karya, Dinas Bina Marga Dan Pengairan Kabupaten Badung

2018 ◽  
Vol 5 (2) ◽  
pp. 67
Author(s):  
Eric Timotius Abit Duka ◽  
I Nyoman Setiawan ◽  
Antonius Ibi Weking
Keyword(s):  
Energy Supply ◽  
Electrical Power ◽  
Slope Angle ◽  
Electric Energy ◽  
Electrical Energy ◽  
Electrical Energy Consumption ◽  
Power Requirement ◽  
Solar Module ◽  
Increasing Demand ◽  
Manual Calculation

The increasing demand for electrical energy in Bali requires additional electrical energy supply, while conventional energy such as petroleum, coal and natural gas continue to be used. Therefore, the utilization of non-conventional energy like solar energy should be increased. One of provision of non-conventional electric energy which is ready to be widely used is using PLTS Photovoltaic technology. The data analysis in this study uses manual calculation method to calculate electric power requirement, setting the result for electrical power, calculating the amount and capacity for solar module and inverter, calculating slope angle and location of solar module. PLTS uses a hybrid system with PLN, which works automatically to be controlled by the inverter control system. PLTS capacity of 148,274 kW supply 30% of the electrical energy consumption in the building of 2,310 MWh.

Energieautarke Kühlung von Lineardirektantrieben*/Experimental investigation of self-sufficient cooling systems for linear direct drives of machine tools - Recuperation of the thermal losses in linear motors with thermoelectric generators

2017 ◽  
Vol 107 (05) ◽  
pp. 359-365
Author(s):  
E. Prof. Uhlmann ◽  
S. Salein
Keyword(s):  
Energy Harvesting ◽  
Machine Tools ◽  
Cooling System ◽  
Electric Energy ◽  
Electrical Energy ◽  
Efficient Solutions ◽  
Air Cooling ◽  
Thermoelectric Generators ◽  
Cooling Systems ◽  
Linear Motors

Das wachsende Bewusstsein für eine umweltgerechte und damit nachhaltige Fertigung sowie steigende Energiepreise führen zur erhöhten Nachfrage nach energieeffizienten Lösungsansätzen für langlebige Produktionsmittel. Die Energierückgewinnung von thermischen Verlusten durch thermoelektrische Generatoren stellt hierfür einen innovativen Ansatz dar. Das als Energy Harvesting bekannte Konzept wird am Institut für Werkzeugmaschinen und Fabrikbetrieb (IWF) der Technischen Universität Berlin auf seine Eignung zur Erhöhung der Energieeffizienz von hochdynamischen Werkzeugmaschinen untersucht. Der Fachbeitrag präsentiert experimentelle Ergebnisse zur Rückgewinnung von thermischen Verlusten eines Linearmotors. Die im Wärmefluss platzierten thermoelektrischen Generatoren generieren eine elektrische Leistung, die direkt zur Versorgung des Motorkühlsystems genutzt wird. Die Ergebnisse zeigen, dass die elektrischen Verbraucher eines Wasser- und Luftkühlsystems aus der rückgewonnenen Energie der thermoelektrischen Module betrieben werden können.   The growing awareness for environmentally friendly and sustainable production as well as the increase of energy costs leads to a rising demand for energy efficient solutions for long-life production facilities. An innovative approach in this field is the recuperation of energy from thermal loss through thermoelectric generators. The proof of applicability to use an energy harvesting concept in order to increase the energy efficiency of highly dynamic machine tools with linear direct drives is part of a research objective at the Institute for Machine Tools and Factory Management (IWF) of the Technische Universität Berlin. The present paper investigates experimentally the recuperation of thermal losses in linear direct drives. Thermoelectric generators are placed in the heat flow to convert heat into electric energy which is directly supplied to the cooling system of a device. Experimental results show the feasibility to operate the electrical loads of water and air cooling systems by the electrical energy harvested from thermoelectric generators.

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 Photovoltaic Design on Robotic Mobile Surveillance System in Saving Electricity

2018 ◽  
Author(s):  
Andysah Putera Utama Siahaan
Keyword(s):  
Alternative Energy ◽  
Renewable Energy Sources ◽  
Electrical Power ◽  
Electric Energy ◽  
Electrical Energy ◽  
Power Source ◽  
Electrical Energy Consumption ◽  
Primary Power ◽  
Increasing Demand ◽  
Power Needs

The development of the current era of globalization has an impact on the increasing demand for electrical energy consumption. Very needed alternative renewable energy sources to meet the electricity needs at this time one of them uses photovoltaic. Photovoltaic functions to convert solar energy into electrical energy. The robot is a piece of technology that cannot be separated from consumption of electric energy; electric energy is the primary power source of the robot. Limitations of battery resources in robots can be assisted by the alternative energy to meet the electrical power needs of the robot battery.

Some Considerations Regarding Efficiency of Electrical Energy Consumption

2017 ◽  
Vol 0 (0) ◽  
Author(s):  
L. M. Matica ◽  
Z. Kovendi ◽  
H. M. Silaghi ◽  
C. Costea
Keyword(s):  
Energy Consumption ◽  
Electric Current ◽  
Electric Energy ◽  
Electrical Energy ◽  
Electrical Current ◽  
Electrical Energy Consumption ◽  
Electric Network ◽  
Electric Energy Consumption ◽  
Harmonic Components

Abstract The analyses concerning an electric consumer may consist in determination of several components of electric current, injected by this consumer, in the electric network. Regarding sequence negative and sequence zero components of electric current, the unbalanced electrical consumer is the cause of its presence. Regarding harmonic components of electric current, the non-linear consumer is the cause of its presence. The efficiency about electric energy consumption may be characterized by the values of those components; the paper describes several considerations regarding those components of electrical current and its flow.

EXPERIMENTAL STUDIES OF CAR PROPERTIES ON A PHYSICAL MODEL

2019 ◽  
pp. 10-16
Author(s):  
Oleksii Timkov ◽  
Dmytro Yashchenko ◽  
Volodymyr Bosenko
Keyword(s):  
Mathematical Model ◽  
Remote Control ◽  
Physical Model ◽  
Model Experiment ◽  
Experimental Studies ◽  
Electrical Energy ◽  
Short Term ◽  
Motor Current ◽  
Memory Card ◽  
The Mathematical Model

The article deals with the development of a physical model of a car equipped with measuring, recording and remote control equipment for experimental study of car properties. A detailed description of the design of the physical model and of the electronic modules used is given, links to application libraries and the code of the first part of the program for remote control of the model are given. Atmega microcontroller on the Arduino Uno platform was used to manage the model and register the parameters. When moving the car on the memory card saved such parameters as speed, voltage on the motor, current on the motor, the angle of the steered wheel, acceleration along three coordinate axes are recorded. Use of more powerful microcontrollers will allow to expand the list of the registered parameters of movement of the car. It is possible to measure the forces acting on the elements of the car and other parameters. In the future, it is planned to develop a mathematical model of motion of the car and check its adequacy in conducting experimental studies on maneuverability on the physical model. In addition, it is possible to conduct studies of stability and consumption of electrical energy. The physical model allows to quickly change geometric dimensions and mass parameters. In the study of highway trains, this approach will allow to investigate the various layout schemes of highway trains in the short term. It is possible to make two-axle road trains and saddle towed trains, three-way hitched trains of different layout. The results obtained will allow us to improve not only the mathematical model, but also the experimental physical model, and move on to further study the properties of hybrid road trains with an active trailer link. This approach allows to reduce material and time costs when researching the properties of cars and road trains. Keywords: car, physical model, experiment, road trains, sensor, remote control, maneuverability, stability.

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