ECU Corporation Safety-related Chillers About our Teaming Partner Curtiss-Wright Nuclear and ECU are teamed to design and manufacture application-specific, safety-related chillers and equipment for nuclear plants worldwide. Utilizing ECU’s chiller design and manufacturing capabilities and Curtiss-Wright Nuclear’s commercial grade dedication and equipment qualification expertise, we are capable of providing OEM replacement, reverse engineered, and custom designed chillers. Essential chillers can be custom designed for a specific location within the power plant to replace existing units. Our cost effective design uses small modular self-contained refrigeration units that can be assembled into a larger skid for higher capacities. This concept allows for smaller packages to be manufactured and tested in the factory then they can be moved and installed into confined spaces within the power plant. Multiple small units allow for better control and built in redundancy. Most existing chillers are designed for maximum accident condition which can be four to five times greater than normal winter requirements. The modular concept allows for better control of partial load by using multiple smaller compressors instead of one very large one. Proven electro-mechanical devices for control and operation of the unit eliminates the added cost of maintaining a program for safety-related software to operate the chiller. Non-safety digital PLC can be offered to gather system data for maintenance and trending information using existing control connections, thus eliminating a complete digital upgrade expense. Nuclear Power Products and Services Nuclear CWNUCLEAR.COM
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ECU CorporationSafety-related Chillers
About our Teaming PartnerCurtiss-Wright Nuclear and ECU are teamed to design and manufacture application-specific, safety-related chillers and equipment for nuclear plants worldwide. Utilizing ECU’s chiller design and manufacturing capabilities and Curtiss-Wright Nuclear’s commercial grade dedication and equipment qualification expertise, we are capable of providing OEM replacement, reverse engineered, and custom designed chillers.
Essential chillers can be custom designed for a specific location within the power plant to replace existing units. Our cost effective design uses small modular self-contained refrigeration units that can be assembled into a larger skid for higher capacities. This concept allows for smaller packages to be manufactured and tested in the factory then they can be moved and installed into confined spaces within the power plant. Multiple small units allow for better control and built in redundancy. Most existing chillers are designed for maximum accident condition which can be four to five times greater than normal winter requirements.
The modular concept allows for better control of partial load by using multiple smaller compressors instead of one very large one. Proven electro-mechanical devices for control and operation of the unit eliminates the added cost of maintaining a program for safety-related software to operate the chiller. Non-safety digital PLC can be offered to gather system data for maintenance and trending information using existing control connections, thus eliminating a complete digital upgrade expense.
Nuclear Power Products and Services
NuclearCWNUCLEAR.COM
CONTACT INFORMATION: 4600 East Tech Drive, Cincinnati, OH [email protected] | +1.513.528.7900
TP - 202 - 12.2015 - QT
ECU CorporationSafety-related Chillers
Air Seperators
Scroll Compressor
Dual Circulating Pumps
5 Ton Remote Air Condenser
16 Ton Air Cooled Condenser
Safety-related, Augmented Quality, and Commercial Chillers to 200T and Larger• ASME Section III, Section VIII, andB31.1
water side• 10CFR50 Appendix B Quality Assurance• Water or air cooled chillers• Obsolescence solutions - reverse engineer
chillers• Replacement for OEMs have exited the
nuclear industry• Drop in replacements to match OEM
mechanical and electrical footprint• Per customers specifications due to
updated cooling requirements• Electro-mechanical/Analog control with
digital monitoring for maintenance
Chillers Features• Capacities from 3000 BTUH to 200 Ton• Water or air cooled condensor• Environmentally friendly HFC refrigerants:
— R-134a— R-407C— R-410A
• Modular design to suit installation egress requirements
• Single stage or mult-stage design• Hermetic motor with refrigerant cooled
system• Shell and tube type or high efficiency
brazed/welded plateheat exchanger• Sub cooler and/or de-superheat injection
available• Stable refrigerant flow control at full load• Full hot gas bypass for part load design• Low noise and low vibration• High efficiency and high reliability design• Designed to match current footprint,
volumetric, and inlet/outlet locations
Design Consideration• Critical design characteristics for operation • Overall system design, simple vs. complex
requirements• Built in redundancy using multiple smaller
compressors vs. one large compressor• Part load considerations for sizing
compressors and optimize efficiency• Compressor protection, temperature and
pressure monitoring• Failure modes• Human Factors and HMI• Selection of industry recognized
components• Analog controls using proven
electro-mechanical components• Digital monitoring• Maintenance• Weather protection for outdoor units• Power, weight, and size restrictions• Optimum efficiency, use of available power• Code requirements• Seismic testing• EMI/RFI testing• Environmental Testing
Unit Control Cost Effective Design• Standard analog for operation• Optional non-safety digital for data and
trending information• System monitoring/protection for:
— Cooling loss— Refrigerant loss— Water flow loss— Power loss— Control loss— High head pressure— Low suction pressure
• Custom designed to fit existing space per your specifications
• Engineered to meet your specifications and designed for forty years of reliable service
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