Jump to content

NEED INFO


Flame-Tail
 Share

Recommended Posts

  • SRC Member

Hi all. Just wanna check if the reccomended flowrate of a chiller is an important factor for the chiller to function to its maximum capability.

For example if the flow rate is 1800l/hr and I use a pump that is 1000l/hr , wil it make a difference in the cooling of the water.

Or if the flow rate is 1800l/hr and I use a pump that is 2500l/hr ???

Please share your views so that many can benifit from it. :):thanks::peace:

Link to comment
Share on other sites

  • SRC Member
i think some thread discuss about this before. The flowrate will determine the contact time the chiller have with the water. High flowrate means less contact time and vice versa.

So does it mean that with high flowrate, the chiller will not chill the water enough??

But quicker the flowrate the faster it should cool right?? :unsure:

Link to comment
Share on other sites

  • SRC Member

whats the difference between high flow rate and quick flow rate?

isn't it the same?

if you talking about speed of water vs volume of water...

all i can say... volume is pretty much fixed as u can not adjust the size of your piping in the chiller mah......

*translated from Hokkien*

"If say no bang wall, this idiot will never ripen" - Mr Quah Siew Kow.

Link to comment
Share on other sites

  • SRC Member

Will attempt to explain this in a meaningful and understandable way...

Firstly, chillers have recommended min flow rate and max flow rate usually. The reason for this is that if the pump goes beyond the max flow rate, there would not be enough contact time to cool the water thus reducing the efficiency of the chiller. Seeing that water has to pass through a cooled copper or titanium coil, there has to be enough time spent through the length of the coil for the water to cool down....if the pump is over the recommended rate, the water will barely cool down when passing through the chiller just due to the fact that it wasn't given enough time to dissipate it's heat.

On the other hand, there is a minimum flow rate with some chillers as well. I'm not a 100% certain on the reasonining for this but i believe it revolves around the fact that if the water flow is too slow, the chiller could be producing more cooling capacity than the water passing through it can absorb....thus causing freezing of the coils etc...i think.

As for the overall chilling time it takes to cool down a tank..if you were to compare running a chiller on a min flow rate pump and a max flow rate pump, well, the one running on or close to the max flow rate will end up chilling the tank faster just simply due to the higher turnover of water being cooled.

So bottom line, it's always better to run a chiller on a higher flowrate pump but not overly exceeding the chillers recommended max flow rate. Also remember that although the flow rate of a chiller may state 1000lph for example, using a 2000lph pump may well work seeing the possible headloss it may encounter on the way to the chiller and also while going through the chiller. So in essense a 2000lph pump may well only produce around 1000lph of flow after minusing the headloss from the journey to the chiller and also the headloss obtained from water running through the chiller coils.

Hope i make sense....

cheers.... :)

Tank 66"x27"x28" - Return Pump Red Dragon 12m3 - Skimmer Deltec AP701 - Chiller Starmex - Wavemakers Wavysea - Lighting DE 6 x T5-HO

southpaw23's reef

Link to comment
Share on other sites

  • SRC Member

Can a chiller really freeze up? Imagine this scenario-I am using less than the min flow for a chiller but I set it at 25 degree. That's not even close to 4 degrees where water start to freeze. Is it over rated? This been bugging me.

Link to comment
Share on other sites

  • SRC Member

I don't think that will happen. It might be a myth. When we set a temperature to the chiller, the chiller will be activated if the set temperature increase by a few degrees and the chiller will de-activate as soon as it gets to it's preset temperature. It won't 'freeze' up as the temperature won't go below the preset temperature. Muar Chee, the piping will be significantly colder that I agree but it won't freeze as the temperature may be ard 1-2 degree cooler. That is still way beyond freezing level.

Link to comment
Share on other sites

  • SRC Member

alright...

then again.... i was nv an expert in hardware and stuff..... just contributed my 2 cents... which apparently... quite worthless.....

i am also not an expert in marine...

to be honest.... i still dun know most fishes scientific name.... i do not know what is millipora or staghorn..... i only know pink colour sps, brown colour sps, blue colour sps......

i know that as long as i like it... i get it..... i put it in my tank.... i enjoy it.... :peace:

oh.... and i like woonming too..... and boy..... do i enjoy.... :fear:

*translated from Hokkien*

"If say no bang wall, this idiot will never ripen" - Mr Quah Siew Kow.

Link to comment
Share on other sites

  • SRC Member

:lol::lol::lol: mUAr_cHEe, u always make me laught :lol::lol::lol: ya, we talk about pink stag... ur favour colour... :fear:

anywa, if you use low flow rate pump, your chiller will take longer time to cool your water as compare with the high flow rate :rolleyes:

age.png
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share



  • Join us on the largest Reefing community in Asia!

    Sign up and share your reefing journey with us, make friends and get helps from the community .

     

  • Topics

  • Latest Update

    1. 0

      麦考瑞大学本科毕业证成绩单MQU硕士学位证文凭Q/微993398773办理澳洲大学真实学历留信认证留服认证教育部认证回国证明澳洲本科教育部认证硕士文凭诚招代理Quarie University

    2. 0

      加州大学戴维斯分校申请学校UCD|Davis毕业证成绩单信封Q/微993398773办理美国大学毕业证文凭留信认证留服认证教育部认证回国证明美国本科文凭硕士学位证毕业证University of California, Davis

    3. 0

      布鲁克大学毕业证丢失Brock毕业证成绩单Q/微993398773办理加拿大大学毕业证学位证留信认证留服认证教育部认证回国证明加拿大本科学位证硕士文凭成绩单Brock University

    4. 0

      昆士兰大学本科毕业证成绩单UQ硕士学位证文凭Q/微993398773办理澳洲大学真实学历留信认证留服认证教育部认证回国证明澳洲本科教育部认证硕士文凭诚招代理University of Queensland

    5. 0

      圣迭戈加利福尼亚大学申请学校UCSD毕业证成绩单信封Q/微993398773办理美国大学毕业证文凭留信认证留服认证教育部认证回国证明美国本科文凭硕士学位证毕业证 University of California, San Diego

×
×
  • Create New...