Campbell CS105MD Especificações descarregar pdf (Página 73)

Appendix E. Chill Hours

E.1 Chill Hours

Chill hours represent the number of hours the temperature stayed at or below a

certain base (or reference) temperature provided by the user.

E.1.1 Method

1. The hourly average temperature value, Ta, is compared to the base

temperature.

2. If Ta < = BaseTemp, then the number of chill hours = 1, and

If Ta > BaseTemp, then the number of chill hours = 0

3. A value of either 1 (if the hourly average temperature stayed at or below

the base temperature) or 0 (if the hourly average temperature stayed above

the base temperature) is assigned to each hour of the day.

4. These values are summed at the end of each 24-hour period. The total

value represents the number of chill hours; i.e., the number of hours the

temperature remained at or below the base temperature.

E-1

1 2 ... 68 69 70 71 72 73 74 75 76 77 78

Sem comentários

Campbell CS105MD Especificações Página 73