水草情迷

我缸有2個流量大的濾水，在水面出水駁鴨咀，勁吹水面，效果等唔等如用風扇哩？
這幾天水溫保持26度以下，住沙田，空氣幾流通。請問各草友你們用diy扇後，水溫這兩周多少？唔開冷氣計，我想對比我無用扇的效果。
thanls information & advice

此種亂流和用風扇所做的效果不同........

用風扇是利用空氣流動, 促進水的蒸發, 做到降溫的效果
水面亂流能益強水面同氣體的融合, 無乜降溫效果.....

呢兩日氣溫低, 我無加風扇, 一支hqi, 都係廿八廿九度左右

siubox兄
可否貼圖上來呢，我唔係好明"在水面出水駁鴨咀，勁吹水面，效果等唔等如用風扇哩？"我都係住沙田的，你家真好係正，我呢幾日室温(唔開冷氣計)都有27度，冇水泠個缸28.5度。

for your reference:

I use one small fan and the result temp. tonight is 27 degree while the room temp. is 28.5 degree. (live in Tai Kok Tsui)

you said "用風扇是利用空氣流動, 促進水的蒸發, 做到降溫的效果 . 水面亂流能益強水面同氣體的融合, 無乜降溫效果..... "

that means if the fan moving in the water doesnt work for
cooling. then if someone use 滑輪(troley")? my meaning is:
by using the movement of the water flowing out from the
filter, to make a troley" to rotate,then we set this troley"
connect to another larger troley, which is connecting a fan.
Then as the smaller troley" moves(since filter makes water
moves),then the larger troley moves, then so as the fan.
Can it possible?^^

唔明! 是否想做水力風扇??! 如果係, 唔efficient! d水流有幾快呢!! 已經冇咩力, 重要細輪推大輪, 重慢, physics 教過, energy 唔會無端端create出來! 所以細輪已經慢, 兩個輪重慢, 加埋細輪轉大輪比, 又再慢d, 而d輪本身亦有重量, 慢上加慢!! 做風車裝飾? 唔明!

then use a weightless troley" lor.
small size n light weight troley.

i see the flowing speed of the water from filter is so fast!!!

在水面出水駁鴨咀，勁吹水面，效果等唔等如用風扇哩？ 就算得也出現草缸((狂風掃落葉))!!

4.5" DC x 2 長開18小時,前日室外氣溫31.5,早上魚缸27C, 晚上28C,晚上六時自動開HQI x 2 ,開泠氣25.5C,11時close泠氣,燈。