Effects of inlet blockage and electrical driving mode on static pressure and flow rate of wire-rod electrohydrodynamic pumps

Wang, Po-Hao; Wen, T.

doi:10.1016/j.elstat.2019.103409

Cited by 5 publications

(6 citation statements)

References 27 publications

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“…However, when driving such a pump in C.V. mode, the inlet blockage can lower the flow rate by 13.6% (for 31 kV) to 20.1% (for 20 kV). This phenomenon is different from what has been reported for the wire-rod ionic wind pump [ 15 ]. The suspected reason for the difference between these two types of ionic wind pumps is that the distributions of the space charge density around the corona electrode and the inlet velocity profile are different.…”

Section: Resultscontrasting

confidence: 99%

“…However, when coming to practice, the pump inlet could have obstacles, such as the components or chassis, creating negative effects on the PQ performance, known as the inlet blockage effect [ 29 , 30 , 31 ]. The PQ performance of a wire-rod ionic wind pump has been shown to be affected by both the inlet blockage and the electrical driving mode [ 15 , 32 ].…”

Section: Introductionmentioning

confidence: 99%

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The Effects of Inlet Blockage and Electrical Driving Mode on the Performance of a Needle-Ring Ionic Wind Pump

Wen

2021

Micromachines

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The thermal management of microelectronics is important because overheating can lead to various reliability issues. The most common thermal solution used in microelectronics is forced convection, which is usually initiated and sustained by an airflow generator, such as rotary fans. However, traditional rotary fans might not be appropriate for microelectronics due to the space limit. The form factor of an ionic wind pump can be small and, thus, could play a role in the thermal management of microelectronics. This paper presents how the performance of a needle-ring ionic wind pump responds to inlet blockage in different electrical driving modes (direct current), including the flow rate, the corona power, and the energy efficiency. The results show that the performance of small needle-ring ionic wind pumps is sensitive to neither the inlet blockage nor the electrical driving mode, making needle-ring ionic wind pumps a viable option for microelectronics. On the other hand, it is preferable to drive needle-ring ionic wind pumps by a constant current if consistent performance is desired.

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Section: Resultscontrasting

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Effects of Inlet Blockage and Electrical Driving Mode on the Performance of a Needle-Ring Ionic Wind Pump

Wen

2021

Micromachines

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“…The greatest feature of an EHD pump is no moving parts such that EHD pumps can be small form factor, low profile, simple configuration, silent, vibration-free, and low power consumption. The performance of an EHD pump is governed by the factors that affect the characteristics of the electric field around the corona electrode, including the physical and electrical factors like geometry/configuration [65][66][67][68], electrode material [69,70], voltage [67,71], current [64,72], and polarity [66,73].…”

Section: Reciprocatingmentioning

confidence: 99%

“…27 The schematic of the diaphragm pump and the orifice designs [61] Fig. 28 The working principle of an EHD pump [64] Fig. 29 The schematic of Peng's simulation [65].…”

Section: Reciprocatingmentioning

confidence: 99%

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Recent Developments in Air Pumps for Thermal Management of Electronics

Wen

2021

Journal of Electronic Packaging

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For electronics, poor thermal management could cause severe mechanical and electrical failures. Forced convective air cooling, i.e., flowing air over a hot surface, is one of the most efficient and economical solutions to manage thermal issues of electronics. Air pump is used to initiate and sustain airflow required in forced convection. This paper reviews both the mechanical and the nonmechanical air pumps that have been using widely in current electronics or have a great potential in future electronics. The mechanical pumps include axial fans, blowers, beam fans, and diaphragm pumps, while the nonmechanical pump specifically focuses on electrohydrodynamic pumps. This paper presents the working principle first and then the recent developments, including the pump itself (design, characteristics, etc.) and the applications in thermal management (placement, integration, etc.). In the end, this paper conducts the strength analysis (flow rate, pressure, noise, flexibility, and reliability) among the reviewed five types of air pumps.

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Two-species modeling of electrohydrodynamic pump based on surface dielectric barrier discharge

Adamiak

2020

Journal of Electrostatics

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Effects of inlet blockage and electrical driving mode on static pressure and flow rate of wire-rod electrohydrodynamic pumps

Cited by 5 publications

References 27 publications

The Effects of Inlet Blockage and Electrical Driving Mode on the Performance of a Needle-Ring Ionic Wind Pump

The Effects of Inlet Blockage and Electrical Driving Mode on the Performance of a Needle-Ring Ionic Wind Pump

Recent Developments in Air Pumps for Thermal Management of Electronics

Two-species modeling of electrohydrodynamic pump based on surface dielectric barrier discharge

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