Electromagnetic analysis of 1MJ class of high temperature superconducting magnetic energy storage (SMES) coil to be used in power applications

Kumar, Abhinav; Kaur, Ravinder

doi:10.1063/1.5050751

Cited by 4 publications

(2 citation statements)

References 13 publications

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“…High temperature superconductors (HTS) are one of eligible contender which have been exploited in various applications such as energy storage [6]- [8], proficient power transmission (transformers or cables) [9]- [11], ship propulsion using motors [12]- [15], power generation (Generators) [16]- [18], and magnetic levitating trains [19] [20]. To maintain superconductivity, there is a need to dissipate the heat load generated due to AC losses imposed on the superconducting tape [21]- [23].…”

Section: Figure 1 Schematic Of Starc Abl Hybrid Electric Aircraftmentioning

confidence: 99%

Feasibility Analysis on Cryogenic Properties of Supercritical Nitrogen to be used in the Cooling of Hg-Based High Temperature Superconductors for Electric Aircraft Propulsion

Kumar¹,

Jeyan²

2019

IJEAT

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Electrified Aircraft Propulsion (EAP) and Advanced Hybrid Electric Aircrafts (AHEA) like NASA NX-3, SUGAR, NASA X-57 and STARC ABL are going to be the future of avionics as they have potential to improve fuel economy, emissions and noise levels. The agencies have suggested using superconducting cables for the electric transmission to reduce heat losses. The limit of critical current has reached 134 K where Hg- based ceramic materials are available that can superconduct at this temperature range. In order to retain the superconductivity, the cables have to be cooled below its critical temperature. Liquid nitrogen (LN2) boils of at 77 K which further leads to multiphase heat transfer challenges. An attempt has been made in the present work to overcome such challenges and a novel concept of using Supercritical Nitrogen (SCN), having critical temperature 126.19K and pressure as 3.3958MPa (consist single phase), as a cryogen for the cooling of Hg-Based Superconductors, has been introduced. Drastic variations have been found for thermophysical properties of SCN near the critical point. It has been concluded that few temperature and pressure ranges are suitable if one wants to incorporate SCN as cryogen for Hg-based superconductors.

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Section: Figure 1 Schematic Of Starc Abl Hybrid Electric Aircraftmentioning

confidence: 99%

Feasibility Analysis on Cryogenic Properties of Supercritical Nitrogen to be used in the Cooling of Hg-Based High Temperature Superconductors for Electric Aircraft Propulsion

Kumar¹,

Jeyan²

2019

IJEAT

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“…A tape can be used as single tape or in a stack of tapes forming Roebel configuration which is widely employed in various studies [6][10]- [14]. Pancake coils are used in various applications including motor winding [15]- [17], magnets (solenoidal or toroidal) [3][18]- [20] where these are piled up on top of the other to generate the required field. In order to retain the superconducting nature of the tape, it has to be cooled below critical temperature which limits the amount of current (termed as critical current of the tape) that can carry through the tape.…”

Section: Introductionmentioning

confidence: 99%

Effect of Self-field and Loosening of Stacked Superconducting Tapes on Critical Current of a Single Pancake Coil

Agrawal¹,

Kumar²

2019

IJEAT

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Research on superconducting systems is getting pace due to the increasing demand of efficient machines to fulfill the need of the society. Applications like motors, transformers and magnetic energy storage systems involve the pancake coils tightly bounded with the superconducting tapes. Moreover, all such devices are sensitive to the number of turns and operating current. Critical current of the superconducting tape is most important parameter while designing such machines as if operating current exceeds this value it will turn to a normal conductor. Critical current of the tape is further depending upon the operating temperature, external and self-field. In this work, effect of both self-field and degree of tightness or looseness on the critical current of the tape has been studied. The results showed that the critical current of the tape is significantly affected by both self-field and the inter-distance among the adjacent tapes.

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Potential of supercritical nitrogen to be used as cryogen for superconducting applications

Kumar

Kumar²,

Kochher³

2021

Materials Today: Proceedings

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Electromagnetic analysis of 1MJ class of high temperature superconducting magnetic energy storage (SMES) coil to be used in power applications

Cited by 4 publications

References 13 publications

Feasibility Analysis on Cryogenic Properties of Supercritical Nitrogen to be used in the Cooling of Hg-Based High Temperature Superconductors for Electric Aircraft Propulsion

Feasibility Analysis on Cryogenic Properties of Supercritical Nitrogen to be used in the Cooling of Hg-Based High Temperature Superconductors for Electric Aircraft Propulsion

Effect of Self-field and Loosening of Stacked Superconducting Tapes on Critical Current of a Single Pancake Coil

Potential of supercritical nitrogen to be used as cryogen for superconducting applications

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