Device and Method for Thawing or THAWING. Frost Point Temperature Determination of a Gas

Publication: EP4545933A1
Published: 2025-04-30
Family Size: 2
Granted: No

Simple SummaryContent extracted from patent full text and abstract with AI.

The invention describes a device and method for accurately determining the frost point temperature of a gas, which is the temperature at which water vapor in the gas condenses and forms frost. The core innovation uses a layered structure with at least one small opening, pressure sensors before and after this layer, and a temperature sensor. When the temperature of the layer is varied and reaches the frost point, the condensed water or frost partially blocks the opening, creating a detectable change in pressure difference. By measuring the temperature at this specific pressure difference change, the frost point and thus the moisture content of the gas can be determined precisely and efficiently.

Use CasesContent extracted from patent full text and abstract with AI.

  • Industrial monitoring of gas purity and humidity control systems
  • Calibration and maintenance of gas delivery systems in scientific and industrial applications
  • Meteorological and climate research for atmospheric moisture measurement
  • Quality assurance in processes where gas moisture needs to be precisely managed, such as semiconductor manufacturing or pharmaceutical production
  • Portable, energy-efficient humidity sensors for field analysis or mobile laboratories
  • Integration in HVAC systems for real-time moisture monitoring and control

BenefitsContent extracted from patent full text and abstract with AI.

  • Fast and accurate frost point (humidity) measurement compared to conventional, time-consuming methods
  • Robust and simple device structure, reducing calibration needs and mechanical complexity
  • Lower energy consumption due to efficient heating/cooling of small-mass layer, making it suitable for portable devices
  • Cost-effective compared to optical or chromatographic dew/frost point analyzers
  • Increased measurement precision by using differential pressure detection and a controlled, small sample environment
  • Easily adaptable design for different gas types, flow rates, and industrial requirements

Technical Classifications (CPCs)

Main Classifications

Physics & Measurement

Sub Classifications

Measuring & Testing

CPC Codes

G01N7/10

Inventors & Applicants

Applicants

Dilo Armaturen und Anlagen Gmbh

Forschungszentrum Juelich Gmbh

Patent Abstract

The invention relates to a device (1) and a method for determining the frost point temperature of a gas, wherein the device has an intermediate layer (10) having at least one opening (11). The device (1) further comprises a temperature measurement unit (12), a first pressure measurement unit (23), which is arranged upstream of the intermediate layer (10) in a gas flow direction, and a second pressure measurement unit (24), which is arranged downstream of the intermediate layer (10) in the gas flow direction.

Key Information

Publication No.

EP4545933A1

Family ID

88511548

Publication Date

2025-04-30

Application No.

EP23205365A

Application Date

2023-10-23

Priority Date

2023-10-23

Granted

No

Possible Cooperation

For further information please contact the transfer office.