Dear Mongkol san
Saranya san
Cc: Concern
Good evening.
Follow YAMAHA request about calculation methods from data to time of S-WOM.
Basically our machine energy is 78 W/m2 (300~400 nm).
Then Japanese yearly sunshine energy is 306 MJ/m2 (300~400 nm)
So if we are calculate by those date
(306,000,000/78)/3600 = 1090 Hr
It's meaning 1090 Hr is 1 year for out side.
Then we try to cal. data for 600 Hr by S-WOM.
(X/78)/3600 = 600
→ 600*3600*78 = 168,480,000 = 169 MJ/m2 (*1)
So 169/306 = 0.55 year = Around 7 month in Japan.
For Thailand,
If compare Thailand and Japan, Thailand energy is x1.4 than Japan.
So Thailand sunshine energy is 306 x 1.4 = 428 MJ/m2
Refer to 600 Hr energy of S-WOM = 169 MJ/m2 (*1)
So 169/428 = 0.4 year = Around 5 month in Thailand.
Those data is refer from web site.
It is not sure correct or not...
http://www.sugatest.co.jp/contents/fields/content01.html
Do you understand??
Please confirm it.
Best regards,
Hayashi