scholarly journals Energy-Saving Hot Open Die Forging Process of Heavy Steel Forgings on an Industrial Hydraulic Forging Press

Energies ◽  
2020 ◽  
Vol 13 (7) ◽  
pp. 1620 ◽  
Author(s):  
Ryszard Dindorf ◽  
Piotr Wos
Keyword(s):  
Control System ◽  
Energy Saving ◽  
Predictive Control ◽  
Power Supply ◽  
Electricity Consumption ◽  
Time Model ◽  
Forging Process ◽  
Energy Saving Process ◽  
Open Die Forging ◽  
Forging Press

The study deals with the energy-saving process of hot open die elongation forging of heavy steel forgings on an 80 MN industrial hydraulic forging press. Three innovative energy-saving power supply solutions useful for industrial hydraulic forging presses were analyzsed. The energy-saving power supply of hydraulic forging presses consists in reducing electricity consumption by the electric motor driving the pumps, reducing the noise emitted by pumps and reducing leaks in hydraulic piston cylinders. The predicted forging force as a function of heavy steel forging heights for various deformation temperatures and strain rates was determined. A simulation model of the 80 MN hydraulic forging press is presented, which is useful for determining the time-varying parameters during the forging process. An energy-saving control for the hydraulic forging press based on the forging process parameters’ prediction has been developed. Real-time model predictive control (MPC) was developed based on multiple inputs multiple outputs (MIMO), and global predictive control (GPC). The GPC has been implemented in the control system of an 80 MN industrial hydraulic forging press. The main advantage of this control system is the repeatability of the forging process and minimization of the size deviation of heavy large steel forgings

scholarly journals Prediction of the parameters and the hot open die elongation forging process on an 80 MN hydraulic press

2021 ◽  
Vol 11 (1) ◽  
pp. 528-534
Author(s):  
Ryszard Dindorf ◽  
Jakub Takosoglu ◽  
Piotr Wos
Keyword(s):  
Dynamic Model ◽  
Predictive Control ◽  
Material Properties ◽  
Hydraulic Press ◽  
Generalized Predictive Control ◽  
Main Task ◽  
Forging Process ◽  
Die Forging ◽  
Open Die Forging ◽  
Forging Press

Abstract The main task of the study was to develop and implement predictive control in the hot open die forging process of heavy, large, and hard deformable steel forgings on an 80 MN hydraulic press at the Forged Products Department (FPD) of Celsa Huta Ostrowiec (CHO). The predicted hot flow stresses and the predicted deformation/forging forces as a function of the parameters of the elongation forging process were determined. The predicted parameters of the forging process were included in the dynamic model of the hydraulic forging press. Generalized predictive control (GPC) algorithm of the hot open-die forging process on the hydraulic press was developed. The use of predictive control solved the uncertainty of the hot open forging process, which depends on the dimensions, shapes, and material properties of the forgings, as well as the parameters of the hydraulic press and forging tools.

Research on the Near-Net Forging Processes for the Body of Overrunning Clutch

2015 ◽  
Vol 727-728 ◽  
pp. 396-402
Author(s):  
Tai Bin Wu
Keyword(s):  
Energy Saving ◽  
Economic Benefit ◽  
High Surface ◽  
The Body ◽  
Die Design ◽  
Cold Extrusion ◽  
High Surface Quality ◽  
Forging Process ◽  
Forging Press ◽  
Material Saving

The near-net forging processes for the body of overrunning clutch was studied by adopting the warm upsetting,warm no-flash die forging,cold extrusion and cold coining process。The arrangement of the near-net forging processes,the procedure of the near-net forging process,the choice of forging press,the structures of the punch and the lower die,and the key problem of die design were introduced in detail。The chief advantages of this process include the high surface quality,closer tolerances and qualified inner avity for the body of overrunning clutch without subsequent machining;so it is significantly energy-saving,material-saving,and the economic benefit is remarkable。

A Study of Predictive Control of Energy-Saving of Heating Process

2011 ◽  
Vol 328-330 ◽  
pp. 1810-1813
Author(s):  
Xue Li Zhu ◽  
Shu Xian Zhu ◽  
Sheng Hui Guo
Keyword(s):  
Control System ◽  
Error Correction ◽  
Energy Saving ◽  
Real Time ◽  
Predictive Control ◽  
Control Method ◽  
Heating System ◽  
Heating Power ◽  
Heating Process ◽  
Power Station

This paper presents a predictive control method of heating system of heating power station. Firstly, the forecast of heating load is introduced using time series analysis, and the obtained result is used as an energy-saving initial value of predictive control system. Secondly, model simplification method is given and immediate control law is derived, the predictive model order is decreased from N to n. Simplification model satisfies the demand of real-time property of the control system. Thirdly, predictive error correction is used to replace error correction to implement the correction of optimum control of the system, which can improve adaptability and robustness of the system. Finally, simulation of heating system of heating power station is conducted and the results prove that the algorithm is effective in ensuring real-time control, improving tracking and robustness property.

scholarly journals МЕТОДИКА РОЗРАХУНКУ ЕНЕРГОЗБЕРІГАЮЧОГО ЕФЕКТУ ВІД ЗАСТОСУВАННЯ ПАРАЛЕЛЬНОГО АКТИВНОГО ФІЛЬТРА В ТРИФАЗНІЙ ЧОТИРИПРОВІДНІЙ СИСТЕМІ ЕЛЕКТРОЖИВЛЕННЯ З УРАХУВАННЯМ ЙОГО ВЛАСНИХ ВТРАТ

2019 ◽  
Vol 128 (6) ◽  
pp. 9-19
Author(s):  
В. М. Бобровник ◽  
В. В. Каплун ◽  
М. Ю. Артеменко
Keyword(s):  
Energy Saving ◽  
Power Supply ◽  
Power Supply System ◽  
Electricity Consumption ◽  
Supply System ◽  
Active Filter ◽  
Shunt Active Filter ◽  
Three Phase ◽  
Saving Effect

The deduction  of  settlement  ratios  and the development  of  a  method  for  calculating  the energy saving effect from the use of a shunt active filter in a three-phase four-wire power supply system and its testing on the example of monitoring the parameters of electricity consumption of the hostel number 7 KNUTD.

scholarly journals METHOD OF MEASURING POWER CONSUMPTION OF ELECTRIC RECEIVERS ON THE EXAMPLE OF THE EDUCATIONAL BUILDING OF SUMY STATE UNIVERSITY

2020 ◽  
pp. 100-104
Author(s):  
S. Yu. Shevchenko ◽  
І. І. Borzenkov ◽  
I. L. Lebedinsky
Keyword(s):  
Control System ◽  
Power Consumption ◽  
Data Processing ◽  
Automatic Control ◽  
Energy Saving ◽  
Automatic Control System ◽  
Electric Energy ◽  
Electricity Consumption ◽  
Educational Process ◽  
Accounting System

Commercial means of automatic control system of electricity metering, as is known, are installed on the input switchgear and measure the power consumption of all electrical consumers of this metering facility. Such data do not give a complete picture of electricity consumption on each floor of the metering facility, which in turn does not allow the implementation of energy saving measures. Also, these metering systems for electricity metering have a high cost. The article proposes a method of data processing and transmission to the server with their subsequent analysis of power consumption on each floor of the object under study using the ARDUINO microcontroller. Such an accounting system has a lower cost than an automatic control system of electricity metering industrial production. The article presents the scheme of implementation and types of current and voltage sensors. The topology of the measuring complex is also considered in the article. Such a topology can expand and keep not only the general account of a concrete floor, but also in the generality of each educational audience separately. Collecting such data on electricity consumption, it is possible to conduct a qualitative analysis of rational electricity consumption in the educational process, it means that for example in sufficient natural light artificial lighting in the classroom does not need to be used, or after laboratory tasks in a computer class, computers there is still some time. The introduction of energy-saving housing is performed due to the comparative characteristics of the power of gadgets, laboratory stands, etc. with the number of students in the group in accordance with the approved educational process. The algorithm of data processing, analysis of rational use of electric energy and comparative characteristics are implemented on the university server.

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