Flour Mill Packing Area Air Conditioning

[sree.s3]

Hi All
As my title suggest, I have an Air Conditioning requirement for Packing Area in a flour mill.

As the product is wheat, I cannot take return air as it will choke my filter and coil.
So I have decided to have a fresh air AHU.
My room is 10m X 13.5m X 6.8m Height.
My ambient is 46°C and required inside temperature is 25°C.

How do I calculate Airflow of my AHU?
Is it correct to estimate heatload in HAP with outside air requirement as 100% of supply air?

[buford]

Why just have a engineer design and spec the correct unit for you and not have any worries?

[sree.s3]

Its a design & built job for me

[Juan Madera]

Talk to your refrigeration suppliers. They can probably set you on the correct path. Did not see a location, but in this area I'd be using evaporative cooling.

[pecmsg]

Hi All
As my title suggest, I have an Air Conditioning requirement for Packing Area in a flour mill.

As the product is wheat, I cannot take return air as it will choke my filter and coil.
So I have decided to have a fresh air AHU.
My room is 10m X 13.5m X 6.8m Height.
My ambient is 46°C and required inside temperature is 25°C.

How do I calculate Airflow of my AHU?
Is it correct to estimate heatload in HAP with outside air requirement as 100% of supply air?

Why not? Filter changes are still cheaper then electric.

I agree with buford, jobs like these require an engineer.................................






then we get to fix them later.

[buford]

I would bet it will be a very customized unit to deal with both the cooling load, humidity, and air filtering requirements. Not a place for a home made resi style equip.

[Juan Madera]

Oh, and the other "little" problem is that if you are recirculating flour dust, then the equipment must be explosion proof, so I'll change my vote to engineered. Ever seen a video of a flour mill exploding?

[Red Man]

Calculate airflow based on heat load. An engineer should really be involved for a situation like this. How will you be exhausting air from the space? I've had a customer with a similar situation, but it was milk powder. They weren't allowed to let milk powder escape the building.

[Reymundo]

Hi All
As my title suggest, I have an Air Conditioning requirement for Packing Area in a flour mill.

As the product is wheat, I cannot take return air as it will choke my filter and coil.
So I have decided to have a fresh air AHU.
My room is 10m X 13.5m X 6.8m Height.
My ambient is 46°C and required inside temperature is 25°C.

How do I calculate Airflow of my AHU?
Is it correct to estimate heatload in HAP with outside air requirement as 100% of supply air?

Sir.we have the same current situation, as a plant refrigeration & air-con engineer I always encounter problems in flour mill bagging area because of the recirculating air with a huge flour dust coming into AHU, that's why I propose chiller unit(R404A), with no recirculating air, rather than fresh air intake (w/motor drive fans) to AHU to avoid fins choke & abnormalities in the system.

Is my design applicable in the current situation?I am new in this job assignment as a Mechanical Engineer in my 10yrs work experienced.

[Reymundo]

Hi All
As my title suggest, I have an Air Conditioning requirement for Packing Area in a flour mill.

As the product is wheat, I cannot take return air as it will choke my filter and coil.
So I have decided to have a fresh air AHU.
My room is 10m X 13.5m X 6.8m Height.
My ambient is 46°C and required inside temperature is 25°C.

How do I calculate Airflow of my AHU?
Is it correct to estimate heatload in HAP with outside air requirement as 100% of supply air?

Sir.we have the same current situation, as a plant refrigeration & air-con engineer I always encounter problems in flour mill bagging area because of the recirculating air with a huge flour dust coming into AHU, that's why I propose chiller unit(R404A), with no recirculating air, rather than fresh air intake (w/motor drive fans) to AHU to avoid fins choke & abnormalities in the system.

Is my design applicable in the current situation?I am new in this job assignment as a Mechanical Engineer in my 10yrs work experienced.