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Evaporation rate of water as a function of a magnetic field and field gradient.

International journal of molecular sciences · 2012 · Benefit · Insufficient evidence

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BenefitInsufficient evidencePaper 3157

Evaporation of pure water in a large gradient magnetic field (superconducting magnet) was faster than evaporation in the absence of the magnetic field. Evaporation differed by sample position within the field, with the 0 g position showing clearly faster evap…

Study snapshot

PublicationInternational journal of molecular sciences · 2012
Study typeother
Reported directionBenefit
Evidence ratingInsufficient

Abstract

The effect of magnetic fields on water is still a highly controversial topic despite the vast amount of research devoted to this topic in past decades. Enhanced water evaporation in a magnetic field, however, is less disputed. The underlying mechanism for this phenomenon has been investigated in previous studies. In this paper, we present an investigation of the evaporation of water in a large gradient magnetic field. The evaporation of pure water at simulated gravity positions (0 gravity level (ab. g), 1 g, 1.56 g and 1.96 g) in a superconducting magnet was compared with that in the absence of the magnetic field. The results showed that the evaporation of water was indeed faster in the magnetic field than in the absence of the magnetic field. Furthermore, the amount of water evaporation differed depending on the position of the sample within the magnetic field. In particular, the evaporation at 0 g was clearly faster than that at other positions. The results are discussed from the point of view of the evaporation surface area of the water/air interface and the convection induced by the magnetization force due to the difference in the magnetic susceptibility of water vapor and the surrounding air.

Machine Enhanced Logic

AI evidence extraction

Structured fields below were generated from the paper’s abstract and metadata to make the evidence easier to inspect. Automated extraction may be incomplete or incorrect; verify important details against the original paper.

Study typeother
Effect directionbenefit
PopulationNot supplied
Sample sizeNot supplied
ExposureNot supplied
Evidence strengthInsufficientConfidence: 74% · Peer reviewed: yes

Main findings

Evaporation of pure water in a large gradient magnetic field (superconducting magnet) was faster than evaporation in the absence of the magnetic field. Evaporation differed by sample position within the field, with the 0 g position showing clearly faster evaporation than other positions.

Outcomes measured

  • Water evaporation rate
  • Amount of water evaporated by position within magnetic field (simulated gravity positions: 0 g, 1 g, 1.56 g, 1.96 g)

Limitations

  • No magnetic field strength/gradient values reported in the abstract
  • No sample size or replication details reported in the abstract
  • Study examines a physical/chemical outcome (water evaporation) rather than health outcomes
View raw extracted JSON
{
  "study_type": "other",
  "exposure": {
    "band": null,
    "source": "superconducting magnet (large gradient magnetic field)",
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": null
  },
  "population": null,
  "sample_size": null,
  "outcomes": [
    "Water evaporation rate",
    "Amount of water evaporated by position within magnetic field (simulated gravity positions: 0 g, 1 g, 1.56 g, 1.96 g)"
  ],
  "main_findings": "Evaporation of pure water in a large gradient magnetic field (superconducting magnet) was faster than evaporation in the absence of the magnetic field. Evaporation differed by sample position within the field, with the 0 g position showing clearly faster evaporation than other positions.",
  "effect_direction": "benefit",
  "limitations": [
    "No magnetic field strength/gradient values reported in the abstract",
    "No sample size or replication details reported in the abstract",
    "Study examines a physical/chemical outcome (water evaporation) rather than health outcomes"
  ],
  "evidence_strength": "insufficient",
  "confidence": 0.74,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "magnetic field",
    "field gradient",
    "superconducting magnet",
    "water evaporation",
    "simulated gravity",
    "magnetization force",
    "magnetic susceptibility",
    "convection"
  ],
  "suggested_hubs": []
}
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AI-extracted fields are generated from the abstract and metadata and may be incomplete or incorrect. This material is for informational purposes and is not medical advice.

Identifiers and source

DOI: 10.3390/ijms131216916
PubMed: 23443127

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