Research on Energy Consumption Test and Data Process Method of Gravure Printing Machine

2015 ◽  
Vol 738-739 ◽  
pp. 854-857
Author(s):  
Jian Jun Bai ◽  
Yi Ming Wang ◽  
Ying Cai Yuan
Keyword(s):  
Energy Consumption ◽  
Energy Balance ◽  
High Speed ◽  
Electric Energy ◽  
Test Method ◽  
Gravure Printing ◽  
Balance Test ◽  
Data Process ◽  
Three Phase ◽  
Printing Machine

In order to achieve high-speed gravure printing machine energy consumption tested and analyzed process efficiently, put forward a kind of electric energy balance test and analysis method, using power analyzer acquire and record the electric energy balance parameters of motors input ports of the three-phase power supply, and processing the data with the method of successive difference. By means of experiment, tested and analyzed the main motor energy consumption of gravure printing machine, the results verify the feasibility of electric energy balance test method and the method of successive difference.

Research the Test Method of the Voltage Transformer Secondary Load in the Three-Phase Three-Wire Electric Energy Metering Device

2014 ◽  
Vol 687-691 ◽  
pp. 3110-3115
Author(s):  
Gu Li ◽  
Zi Ming Fu ◽  
Jie Feng Yan ◽  
Bing Wen Li ◽  
Zhi Rong Cen
Keyword(s):  
Power Supply System ◽  
Electric Energy ◽  
Test Methods ◽  
Test Method ◽  
Testing Methods ◽  
Voltage Transformer ◽  
Secondary Load ◽  
Three Phase ◽  
Energy Metering ◽  
Definition Of

This paper analyzes and studies the definition of the voltage transformer secondary load, examines the practical purposes of the measured values of the voltage transformer secondary load, and presents a variety of testing methods to analyze and compare the differences. This paper gives the test methods of the voltage transformer secondary load when the connection of the voltage transformer is the Y / Y in a three-phase three-wire power supply system, filling the blank of this type of test method in the industry. When other units within the industry carry out such work, the conclusions of this paper are available for reference, and the conclusions of this paper can be referred when drafting relevant regulations in the future.

Electric Energy Consumption Forecasting Based on Economic Variables in Nakhonratchasima, Thailand

2013 ◽  
Vol 677 ◽  
pp. 523-527 ◽  
Author(s):  
Nopphadon Khodpun ◽  
Sureeporn Meehom
Keyword(s):  
Energy Consumption ◽  
High Speed ◽  
Mean Squared Error ◽  
Electric Energy ◽  
Absolute Error ◽  
Economic Variables ◽  
Energy Prediction ◽  
Electric Energy Consumption ◽  
High Speed Diesel ◽  
Social And Economic Development

Electric energy is vital for social and economic development. The electric energy consumption forecasting plays an important role for energy management and allocation of resources in the future. In this paper, the influence of economic variables on the annual electric energy consumption in Nakhonratchasima has been investigated. Models are developed by using multiple regression analysis. It is founded that the electric energy consumption correlated with four economic variables, which are gross provincial product (GPP), GPP per capita, the energy sales of liquid petroleum gas (LPG) and high speed diesel usages. The historical electric energy consumption and all variables for the period 2002–2010 have been analyzed in 10 models. The study proposed 5 models for electric energy prediction in 2011. In conclusion, the effective model has been selected by comparison of adjusted R2, mean absolute error (MAE) and root mean squared error (RMSE) of the proposed models. Model 3 is acceptable in relation to electric energy consumption forecasting, with adjusted R2 and RMSE equal to 0.9915 and 1.54% respectively. The results indicate that the model using GPP and diesel usages as variables has strong ability to predict future annual electric energy consumption with 4,202,326,368 kWh in 2011.

A Simple Inverter-Motor System to Improve Energy Consumption and Maximum Torque

2012 ◽  
Author(s):  
Tohru Watanabe ◽  
Yukishige Fujita ◽  
Mikio Totani
Keyword(s):  
Energy Consumption ◽  
High Speed ◽  
Motor System ◽  
Power Lines ◽  
Maximum Torque ◽  
Coil Current ◽  
Ac Motor ◽  
Three Phase ◽  
Constant Strength ◽  
Precise Constant

A new inverter-AC motor system having four power source lines, which can control each coil current independently, is compared to an ordinary inverter-AC motor system using a Y-type coil connection and three power lines. In this paper, three-phase rectangular-type currents are generated by the inverter made of simple ICs. In a previous paper[1], similar comparison experiments were executed using a high-speed DSP board. The board can calculate the three-phase currents to generate a rotating, resultant, magnetic flux with a precise constant strength and phase. It was verified by experiments that an energy consumption of 15% can be saved by using the proposed independent, motor-coil currents. However, it requires high speed and high cost DSP or CPU. In this paper, it is verified by using a new inverter-AC motor system that an energy consumption of 15% can be saved, and also the maximum torque increases 10%.

scholarly journals Trajectory Optimization Algorithm for a 4-DOF Redundant Parallel Robot Based on 12-Phase Sine Jerk Motion Profile

Actuators ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 80
Author(s):  
Shengqiao Hu ◽  
Huimin Kang ◽  
Hao Tang ◽  
Zhengjie Cui ◽  
Zhicheng Liu ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Trajectory Optimization ◽  
High Speed ◽  
Degrees Of Freedom ◽  
Sudden Change ◽  
Parallel Robot ◽  
Joint Space ◽  
Allowable Limit ◽  
Three Phase ◽  
Motion Profile

To improve high motion accuracy and efficiency in the high-speed operation of a 4-DOF (4 degrees of freedom) redundant parallel robot, this paper introduces a trajectory planning of the parallel robot in joint space based on the twelve-phase sine jerk motion profile. The 12-phase sine jerk motion profile utilizes the characteristics of a sine function. Furthermore, the penalty function is used to optimize the trajectory energy consumption under the constraint condition. The simulation and experimental results show that the energy consumption of joint space is slightly higher than that of the three-phase sine jerk motion profile, but the overall operation is more accurate and stable. Specifically, the sudden change of force and velocity in each joint is eliminated, which is the cause of mechanism oscillation. Moreover, the force of each joint is more average. The results indicate that each movement is closer to the maximum allowable limit and the running efficiency is higher.

scholarly journals A water-energy balance application with adaptations to a brazilian water supply system

2021 ◽  
Vol 10 (10) ◽  
pp. e380101019039
Author(s):  
Matheus Gonçalves Silqueira ◽  
Fernando das Graças Braga da Silva ◽  
Alex Takeo Yasumura Lima Silva ◽  
Matheus David Guimarães Barbedo
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Energy Balance ◽  
Water Supply ◽  
Total Energy ◽  
Electric Energy ◽  
Pressure Control ◽  
Supply System ◽  
Water Supply System ◽  
Total Energy Consumption

According to the Alliance to Save Energy, between 2 % and 3 % of the total electric energy consumed in the world is used for water pumping in supply systems, with the consumption reduction potential through energy efficiency and conservation measures being estimated at 25 %. In Brazil, the water supply sector corresponds to 2.6 % of the total energy consumed in the country, with pumping systems being responsible for over 90 % of the total energy consumption. It is extremely common to find supersized facilities with pump motor sets operating outside their ideal points, with it being a common practice to perform flow and pressure control through the installation of valves. The use of reducing valves inserts unnecessary pressure drops into the hydraulic system, increasing energy consumption. The objective of this work is to present an energy balance of a study sector of the Autonomous Water and Sewage Service (AWSS) of a municipality in the south of Minas Gerais, Brazil, aiming to elucidate the electric energy consumption of the system and where the reduction in such consumption may occur. For this, we measured data such as the efficiency of the pump motor sets, calculated performance indicators and water loss indices, and applied the energy balance adapted. This work presents an application of a water-energy balance with adaptations to a Brazilian water supply system, under the perspective of the energy efficiency in lift station pump motor sets.

scholarly journals An Improved Test Method for Energy Consumption and Range of Fuel Cell Vehicles

2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
Dong Hao ◽  
Yanyi Zhang ◽  
Renguang Wang ◽  
Xiaobing Wang ◽  
Kai Zhu ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Fuel Cell ◽  
Consumption Rate ◽  
Electric Energy ◽  
Gravimetric Method ◽  
Test Method ◽  
Fuel Cell Vehicles ◽  
Measurement Instruments ◽  
Hydrogen Consumption ◽  
Electric Energy Consumption

At present, there are two main standards, ISO 23828 : 2013 and SAE J 2572–2014, which prescribe the hydrogen consumption test using the pressure method, gravimetric method, and flow method. However, these methods do not meet the test requirements for electric energy consumption and the range of plug-in hybrid fuel cell vehicles (FCVs) which are the main technical considerations in China and Europe. In this paper, a new test method for the hydrogen consumption, electric energy consumption, and range of FCVs is proposed without the use of additional hydrogen supply, measurement instruments, or energy consumption correction, which can improve the operability of the test and avoid the conversion between electric energy and hydrogen. One plug-in hybrid FCV and one nonplug-in hybrid FCV were tested using the proposed method. The results show that the new method meets the requirements of fuel economy test for FCVs with hydrogen consumption rate, electric energy consumption rate, the range for plug-in hybrid FCVs, hydrogen consumption rate, and the range for nonplug-in FCVs.

scholarly journals Primary energy efficiency assessment of a coil heat recovery system within the air handling unit of an operating room

2021 ◽  
Vol 2069 (1) ◽  
pp. 012113
Author(s):  
F J Rey-Martínez ◽  
J F San José-Alonso ◽  
E Velasco-Gómez ◽  
A Tejero-González ◽  
P M Esquivias
Keyword(s):  
Energy Consumption ◽  
Energy Balance ◽  
Thermal Energy ◽  
Heat Recovery ◽  
Energy Savings ◽  
Electric Energy ◽  
Primary Energy ◽  
Recovery System ◽  
Heat Recovery System ◽  
Coil Heat

Abstract Heat recovery systems installed in Air Handling Units (AHUs) are energy efficient solutions during disparate outdoor-to-indoor temperatures. However, they may be detrimental in terms of a primary energy balance when these temperatures get closer, due to the decrease in the thermal energy recovered compared to the global energy consumption required for their operation. AHUs in surgical areas have certain particularities such as their continuous operation throughout the year, the large airflows supplied and the strict exigencies on the supply air quality, avoiding any cross contamination. This work presents the measurements and analysis performed on a coil heat recovery (run-around) loop system installed in the AHU that serves a mixed-air ventilation operating room in a Hospital Complex. A primary energy balance is studied, including the thermal and electric energy savings achieved, considering the electric energy consumption by the recirculation pump and the additional power requirements of fans due to the pressure drop introduced. The obtained value is then used to predict the thermal energy savings achieved by the heat recovery system. Results are extrapolated to the Typical Meteorological Year to provide an order of magnitude of the primary energy and CO2 emissions saved through the operation of the coil heat recovery system.

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
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