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US 12,625,059 B2Granted
Snow accretion test method and snow accretion test device
AssigneeEspec Corp.
InventorsHiroyuki Enoki, Haruki Seto
Life of this patent
Estimating the term…
Abstract
In a snow accretion test method, a snow accumulation step of accumulating snow on a specimen, and a snow accretion step of freezing snow accumulated on the specimen in a state where snow is not supplied to the specimen are performed. The snow accumulation step and the snow accretion step are repeatedly performed. In the snow accretion step, the ambient temperature of the specimen is adjusted to a temperature lower than the ambient temperature in the snow accumulation step.
Claims8
A snow accretion test method comprising:
- a snow accumulation step of accumulating snow on a specimen;
- and
- a snow accretion step of freezing snow accumulated on the specimen in a state where snow is not supplied to the specimen, the snow accretion step at least including a period in which an ambient temperature of the specimen is adjusted to a negative temperature,
- wherein in the snow accretion step, an ambient temperature of the specimen is adjusted to a temperature lower than an ambient temperature in the snow accumulation step.
1 more element
A snow accretion test method comprising:
- a snow accumulation step of accumulating snow on a specimen;
- a snow melting step of melting snow accumulated on the specimen in the snow accumulation step so that wet snow is accumulated on the specimen;
- and
- a snow accretion step of freezing the snow accumulated on the specimen in the snow accumulation step and melted in the snow melting step in a state where snow is not supplied to the specimen, the snow accretion step including a period in which an ambient temperature of the specimen is adjusted to a negative temperature.
1 more element
A snow accretion test device comprising:
- a test chamber configured for providing a snowfall environment;
- an air conditioner configured for air-conditioning an inside of the test chamber;
- a nozzle configured for spraying water particles for obtaining the snowfall environment in the test chamber;
- and
- a controller configured to control the air conditioner and the nozzle, wherein
- the controller is configured to perform a snow accumulation step of accumulating snow on a specimen by controlling the air conditioner and the nozzle so that a temperature in the test chamber becomes a temperature set as a temperature for the snow accumulation step and snow accumulates on the specimen,
- the controller is configured to perform a snow accretion step of freezing snow accumulated on the specimen after the snow accumulation step by controlling the air conditioner and the nozzle so that the temperature in the test chamber becomes a temperature set as a temperature for the snow accretion step and the snow accretion step includes a period in which an ambient temperature of the specimen is adjusted to a negative temperature so as to freeze the snow accumulated on the specimen in a state that snow is not supplied to the specimen, and
- in the snow accretion step, the controller controls the air conditioner so that an ambient temperature of the specimen is adjusted to a temperature lower than an ambient temperature in the snow accumulation step.
5 more elements
A snow accretion test device comprising:
- a test chamber configured for providing a snowfall environment;
- an air conditioner configured for air-conditioning an inside of the test chamber;
- a nozzle configured for spraying water particles for obtaining the snowfall environment in the test chamber;
- and
- a controller configured to control the nozzle and the air conditioner, wherein
- the controller is configured to perform a snow accumulation step by controlling the air conditioner and the nozzle so that a temperature in the test chamber becomes a temperature set as a temperature for the snow accumulation step and snow accumulates on a specimen,
- the controller is configured to perform a snow melting step by controlling the air conditioner so that snow accumulated on the specimen in the snow accumulation step melts and wet snow is accumulated on the specimen, and
- the controller is configured to perform a snow accretion step by controlling the air conditioner and the nozzle so that the temperature in the test chamber becomes a temperature set as a temperature for the snow accretion step and the snow accretion step includes a period in which an ambient temperature of the specimen is adjusted to a negative temperature to freeze the snow accumulated on the specimen in the snow accumulation step and melted in the snow melting step in a state where snow is not supplied to the specimen.
5 more elements
Dependencies are inferred from the claim text.