Research on energy consumption of injection molding machine driven by five different types of electro-hydraulic power units

Li, He; Zhang, Xiaogang; Quan, Long; Zhang, Hongjuan

doi:10.1016/j.jclepro.2019.118355

Cited by 38 publications

(22 citation statements)

References 12 publications

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“…Many of the most common materials used, such as polymers (Figure 5) or metals (Figure 6), need massive amounts of energy and minerals to be manufactured and processed [66]. [57]. Necessary for protecting the product during transport (Table 15).…”

Section: Raw Materials Productionmentioning

confidence: 99%

“…Figure 5. Polymer production process[57]. Necessary for protecting the product during transport (Table15).…”

mentioning

confidence: 99%

“…GHGs emitted by different sorts of fuel used during the overall product life management[57,59,60]. Electricity storage and transport efficiency[61].…”

mentioning

confidence: 99%

“…Polymer injection energy and material consumption data[57]. Steel production energy and material consumption data[69].…”

mentioning

confidence: 99%

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Quantifying the Impact of Production Globalization through Application of the Life Cycle Inventory Methodology and Its Influence on Decision Making in Industry

Prado-Galiñanes

Domingo

2021

Processes

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Industries are nowadays not only expected to produce goods and provide services, but also to do this sustainably. What qualifies a company as sustainable implies that its activities must be defined according to the social and ecological responsibilities that are meant to protect the society and the environment in which they operate. From now on, it will be necessary to consider and measure the impact of industrial activities on the environment, and to do so, one key parameter is the carbon footprint. This paper demonstrates the utility of the LCI as a tool for immediate application in industries. Its application shall facilitate decision making in industries while choosing amongst different scenarios to industrialize a certain product with the lowest environmental impact possible. To achieve this, the carbon footprint of a given product was calculated by applying the LCI method to several scenarios that differed from each other only in the supply-chain model. As a result of this LCI calculation, the impact of the globalization of a good’s production was quantified not only financially, but also environmentally. Finally, it was concluded that the LCI/LCA methodology can be considered as a fundamental factor in the new decision-making strategy that sustainable companies must implement while deciding on the business and industrial plan for their new products and services.

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Section: Raw Materials Productionmentioning

confidence: 99%

“…Figure 5. Polymer production process[57]. Necessary for protecting the product during transport (Table15).…”

mentioning

confidence: 99%

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Quantifying the Impact of Production Globalization through Application of the Life Cycle Inventory Methodology and Its Influence on Decision Making in Industry

Prado-Galiñanes

Domingo

2021

Processes

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“…Related to the melt flow in the cavity, the appearance of a frozen layer is the main reason for a reduction in the filling ability. To address this challenge, a number of methods have been tested, with the aim of reducing the filling pressure [ 7 ] and the viscosity of the melt material [ 8 , 9 , 10 ] or increasing the filling speed. When the aim was to increase the filling pressure, a high injection pressure was selected, and the experiment showed that the melt flow length was improved.…”

Section: Introductionmentioning

confidence: 99%

Improving the Melt Flow Length of Acrylonitrile Butadiene Styrene in Thin-Wall Injection Molding by External Induction Heating with the Assistance of a Rotation Device

Minh

2021

Polymers

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In injection molding, the temperature control of the dynamic mold is an excellent method for improving the melt flow length, especially of thin-wall products. In this study, the heating efficiency of a novel heating strategy based on induction heating was estimated. With the use of this heating strategy, a molding cycle time similar to the traditional injection molding process could be maintained. In addition, this strategy makes it easier to carry out the heating step due to the separation of the heating position and the mold structure as well as allowing the ease of magnetic control. The results show that, with an initial mold temperature of 30 °C and a gap (G) between the heating surface and the inductor coil of 5 mm, the magnetic heating process can heat the plate to 290 °C within 5 s. However, with a gap of 15 mm, it took up to 8 s to reach 270 °C. According to the measurement results, when the mold heating time during the molding process increased from 0 to 5 s, the flow length increased significantly from 71.5 to 168.1 mm, and the filling percentage of the thin-wall product also increased from 10.2% to 100%. In general, the application of external induction heating (Ex-IH) during the molding cycle resulted in improved melt flow length with minimal increase in the total cycle time, which remained similar to that of the traditional case.

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Electric machine sizing consideration for ePumps in mobile hydraulics

Assaf,

Sarode,

Vacca

et al. 2023

Energy Science & Engineering

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Environmental concerns have pushed toward electrified technologies for off‐road vehicle actuations that can lower greenhouse gas emissions and reduce energy consumption. Replacing a central diesel engine with a dedicated electric machine (EM) as a prime mover for the hydraulic supply offers several opportunities for so‐called ePumps (aka electric‐driven pumps) to maximize energy efficiency and limit the usage of electric materials. This paper discusses the impact of different choices for the ePumps architecture (i.e., fixed vs. variable displacement pump; variable speed vs. fixed speed electrical machine), and on their main design parameters in terms of size and efficiency. Although the procedure followed in the study could be extended to different types of electric and hydraulic units, the paper particularly considers ePumps based on permanent magnet synchronous machines combined with axial piston machines. The importance of properly considering the ePump drive cycle and its cooling requirements is taken into account while addressing energy efficiency, mass, and overall compactness of the solution. The results show that an ePump based on a variable displacement pump, when compared to fixed displacement ePumps, reduces the electrical machine size both in volume and mass up to 40%, when the high‐pressure demand is not combined with high flow rate demand, thus decreasing the cost of the EM. In all drive cycles, the variable speed EM–fixed displacement pump architecture has a higher efficiency, ranging from 1% to 5%, compared to the case of fixed speed EM–variable displacement pump. Finally, the paper compares the advantages and shortcomings of each ePump architecture presented, based on representative drive cycles.

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Research on energy consumption of injection molding machine driven by five different types of electro-hydraulic power units

Cited by 38 publications

References 12 publications

Quantifying the Impact of Production Globalization through Application of the Life Cycle Inventory Methodology and Its Influence on Decision Making in Industry

Quantifying the Impact of Production Globalization through Application of the Life Cycle Inventory Methodology and Its Influence on Decision Making in Industry

Improving the Melt Flow Length of Acrylonitrile Butadiene Styrene in Thin-Wall Injection Molding by External Induction Heating with the Assistance of a Rotation Device

Electric machine sizing consideration for ePumps in mobile hydraulics

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