Storage medium, predicting apparatus, and predicting method

A computer readable non-transitory storage medium storing a predicting program causing a computer to execute:

• predicting a first revolution frequency that is a revolution frequency of a fan at which a sound pressure level of sound caused by rotations of the fan satisfies a condition represented as a predetermined target sound volume based on an actual measurement of a sound pressure level of sound caused by rotations of the fan being rotated at a predetermined revolution frequency and the target sound volume;
• and
• predicting a first flow rate that is a flow rate of air to be caused to flow through a ventilation channel by the fan to be rotated at the first revolution frequency thus predicted based on the first revolution frequency thus predicted, an actual measurement of a characteristic related to a static pressure and a flow rate of the fan being rotated at the predetermined revolution frequency, and a pressure loss characteristic of the ventilation channel of the fan.

A predicting apparatus comprising:

• an obtaining unit that obtains an actual measurement of data about a fan being rotated at a predetermined revolution frequency;
• and
• a predicting unit that predicts data about the fan to be rotated at a revolution frequency that is different from the predetermined revolution frequency based on the actual measurement of the data thus obtained.

A predicting apparatus comprising:

• a revolution frequency predicting unit that predicts a first revolution frequency that is a revolution frequency of a fan at which a sound pressure level of sound caused by rotations of the fan satisfies a condition represented as a predetermined target sound volume based on an actual measurement of a sound pressure level of sound caused by rotations of the fan being rotated at a predetermined revolution frequency and the target sound volume;
• a flow rate predicting unit that predicts a first flow rate that is a flow rate of air to be caused to flow through a ventilation channel by the fan to be rotated at the first revolution frequency predicted by the revolution frequency predicting unit based on the first revolution frequency predicted by the revolution frequency predicting unit, an actual measurement of a characteristic related to a static pressure and a flow rate of the fan being rotated at the predetermined revolution frequency, and a pressure loss characteristic of the ventilation channel of the fan.

A predicting method executed by a predicting unit included in a predicting apparatus, the method comprising:

• obtaining an actual measurement of data about a fan being rotated at a predetermined revolution frequency;
• and
• predicting data about the fan to be rotated at a revolution frequency that is different from the predetermined revolution frequency based on the actual measurement of the data thus obtained.

A predicting method comprising:

• predicting at which a revolution frequency predicting unit included in a predicting apparatus predicts a first revolution frequency that is a revolution frequency of a fan at which a sound pressure level of sound caused by rotations of the fan satisfies a condition represented as a predetermined target sound volume based on an actual measurement of a sound pressure level of sound caused by rotations of the fan being rotated at a predetermined revolution frequency and the target sound volume;
• and
• predicting at which a flow rate predicting unit included in the predicting apparatus predicts a first flow rate that is a flow rate of air to be caused to flow in a ventilation channel by the fan to be rotated at the first revolution frequency predicted by the revolution frequency predicting unit based on the first revolution frequency predicted by the revolution frequency predicting unit, an actual measurement of a characteristic related to a static pressure and a flow rate of the fan being rotated at the predetermined revolution frequency, and a pressure loss characteristic of the ventilation channel of the fan.