New Highland cooling system using slightly modified A/C

[robthered]

Originally Posted by weeps

I guess the main challenging here is frost and defrost issue on the coil.
You may not get smooth air flow for constant temperature control.

We'll see how it goes. I have 2 120mm Computer Case fans that run at 133 CFM with high static pressure (they're made to push/pull air through radiators for computer cooling) that I'm hooking up to the back of the rad with a shroud around it to maximize the airflow. I think it'll work out well. I'll post updates once I get the fans, should be in the next few days.

[caseyhoo]

For me, that is a big project. Looking forward for result of it.

Personnally, using aircond to cool down my plant environment is NO NO for me. Electric bill and HOME MINISTER will killing me... oooppppsss... I means Electric bill only...

[weeps]

Yeap, maybe using chiller is lower running cost.

[robthered]

Originally Posted by weeps

Yeap, maybe using chiller is lower running cost.

I thought of that and Chillers tend to use pretty much the same amount of watts as a 5000BTU AC. 1/4 HP chiller runs from about 200 - 500 watts depending on the load, anything more than 1/4 HP and the watts increase.

The max amount of watts my AC can pull is 500. So it's about equal, as the AC doesnt run constantly. Plus getting a used AC for 20 bucks compared to paying $500-700$ for a chiller is a big savings

[cowlat]

i think you only need a fan for the in hole to the box with the radiator. the out hole just leave it without a fan. cold air will flow out naturally as the in fan will build pressure in the box where the out hole is the only way to release the pressure.

if you place the radiator across the box, it will be better. air will flow through the fins and get cold better. if you place it just on the side, the cooling isnt that good.

__________
| <-in air
| |
|========| <<<radiator
| |
| ->out air
__________

if you get what i mean