Bloom Engineers - Clean Room & Data Center

Clean Room - Data Center

Bloom Engineers & Associates Project Examples

Fair Isaac - Shoreview, Minnesota

Emergency - Chilled Water Pump Replacement:

Existing chilled water circulating pump is failing and in need of immediate replacement.
Failure of this pump would require shutdown of the entire Data Center.
Replace existing circulating pump with two new circulating pumps.
Review options to provide a temporary back-up equipment system which uses outside air to cool the Data Center during replacement.
Solution: Data Center temperatures will be maintained during circulating pump shut-down utilizing temporary air supply units supplying outdoor air.
After installation of temporary units, test system for operation for maintaining space temperatures.
Pump change-out to take place when outdoor air temperatures are no higher than 20°F.

Emergency - Failure of the Main Supply Units:

Existing single main air supply unit (60,000 CFM) motor and blower bearings are failing.
Failure of this air supply unit would require shut down of the entire Data Center.
Solution: Provide a back-up in line blower connected to the existing air supply cabinet which will circulate air through the existing cooling coil to maintain room temperatures.
Install back-up blower while the existing fan is in operation.
Coordinate with Owner and Contractor the installation of the back-up blower.
After installation, test operation of back-up system to guarantee operation when replacing existing fan bearings.

Pace Analytical - Minneapolis, Minnesota

Class 10,000 Clean Room:

Construct a class 10,000 Clean Room in the middle of a class 100,000 area.
Provide "Design Build" documents for Owner use.
Project included ceiling mounted fan-powered HEPA filters, lighting, power, fire sprinkler heads, etc.
Present documents to selected contractors for bidding and construction.
Upon completion and testing, the room can operate as a class 1,000.

Climate Controlled Room:

Construct a room to be maintained at a temperature of 23°C +/-2°C and a humidity of 50% +/-5%.
Provide "Design Build" documents for Owner use.
Project included a computer grade unit containing a DX refrigeration system, electric heat, and electric – steam humidifier w/disposable cylinders and auto flush, condensate pump, and controls.
Ducted air supply system.
Present documents to selected contractors for bidding and construction.

Smoke Test Chamber:

Construct a room to be maintained at a temperature of 72°F and a humidity of 40% +/-5%.
Provide "Design Build" documents for Owner use.
Project included the following mechanical equipment:
- Through the wall DX air conditioning unit
- Electric wall mounted heater
- Portable HEPA filter units
- Portable dehumidifier
- Ceiling mounted air circulation fans
Present documents to selected contractors for bidding and construction.

City of St. Paul Annex Data Center - St. Paul, Minnesota

Review contractor proposed revisions of the Data Center HVAC system.
Provide recommendations for equipment which will operate year-round.
Revise existing HVAC system (combination of DX and chilled water units) and replace with a new computer grade HVAC unit of adequate capacity.

Prior Project Example of Principals

Fair Isaac - Shoreview, Minnesota

Study options to provide additional cooling and dehumidification systems.
Provide reliability assessment indicating failure risk, potential for occurrence, and impact.
Implement specific recommendations as directed and remodel various areas.
Redistribute air from existing central cooling systems and add additional Computer Grade units connected to glycol coolers.

Donaldson Company - Bloomington, Minnesota

Remodel of and addition to a Class 10,000 clean room.
Design utilized built up air handling units to provide heating, cooling, humidification, and dehumidification for the entire space.
Use fan-powered HEPA filter units to provide supplemental air flow to meet class requirement.

Physical Electronics - Eden Prairie, Minnesota

Remodel two existing clean rooms to meet Class 1,000 and Class 10,000 requirements.
Utilize built-up air handling units containing heating, cooling, humidification, and dehumidification.
Supply air through ceiling mounted HEPA filters.

Andersen Corporation - Bayport, Minnesota

Modify the computer grade HVAC equipment in the existing data center to provide redundancy, meet the cooling loads, and provide efficient and even air distribution.

North Memorial Medical Center - Robbinsdale, Minnesota

Various project designs including the surgery unit.
Each surgery suite has a dedicated built up air handling unit containing heating, cooling, humidification, dehumidification, and filtration.
Air supply to the suites is provided through a specially designed diffusion system surrounding the operating table.

St. John's Hospital - Maplewood, Minnesota

A $46 million dollar addition and remodeling project including a Surgery unit.
Utilize built-up air handling units containing heating, cooling, humidification, and dehumidification to provide filtered air to each suite.

3M Company - Maplewood, Minnesota

Design and construct a Class 1,000 clean room for plating, a Class 1,000 solvent clean room, and a Class 100 clean room for assembly. The system utilized packaged air handling units containing cooling coils supplying air through HEPA filters. A small DX unit was utilized for dehumidification and make up air. Air supply to the solvent clean room was 100% make up air with no recirculation. The Class 1,000 rooms were down flow rooms and the Class 100 was a cross flow room.

Design and construct a Class 1,000 clean room for chrome plating. Due to limited space, we utilized a return air plenum with latent cooling coils in the plenum wall. A 100% make up air handling unit was utilized to maintain room humidity.

Design and construct a clean dry room for the assembly of a clean product that was very humidity dependant. The room required -40° F wet bulb with class 10,000 construction. This was accomplished through use of refrigeration panels and a packaged air handling unit containing heating and cooling coils supplying air to the HEPA filters. Desiccant dryers were utilized to maintain the very low wet bulb temperatures.