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LINDT & SPRUNGLI PRODUCTION LINE

NEW HAMPSHIRE

CHALLENGE

B2Q was presented with the challenge of designing the process utility and associated HVAC systems for a new state of the art high volume chocolate molding and packaging line.

OPPORTUNITY

The new production line and sanitation area was designed with 26 individual hydronic process piping loops including chocolate process, chilled water, chilled glycol (32°F), and sanitary hot water. B2Q worked with European manufacturers to create a well-coordinated piping configuration with optimized temperature and flow controls. The new process line’s total connected peak load was used to size a new hot water plant with fully redundant, high efficiency natural gas condensing boilers and variable frequency driven pumps. Design of new HVAC systems meets tight temperature and relative humidity requirements. Two new roof mounted variable volume air handling units maintain strict space temperature and relative humidity requirements while utilizing effective airflow dispersion techniques. New pressurization control strategies mitigate contamination between adjacent spaces. Utility connections made at an adjacent line generate the same product, minimizing new piping installed.

RESULT

The new B2Q-designed production line is currently operating at full capacity and is producing more product than at any other within the facility. B2Q oversaw the design, specification, bidding, and installation, as well as assisting with the start-up, testing, and commissioning of the new chocolate production line and HVAC equipment. Cooling and heating are currently maintaining optimized flow and temperature setpoints for all process equipment.

Market:

Industrial

Services:

Project Design
Implementation Services

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The ETIC RCx project was an outstanding success, delivering verified energy savings and operational improvements that exceeded UMass Lowell’s expectations. The project achieved impressive annual cost savings—10% higher than initially projected—while reducing energy intensity by 14% for UMass Lowell’s third-largest utility account.

Beyond cost savings, the initiative delivered significant environmental benefits, cutting annual carbon emissions by 530,000 lbCO2e. Additionally, it enhanced lab safety through robust lab pressurization tracking and the recalibration of all terminal devices.

This success was made possible through the unwavering collaboration between UMass Lowell, B2Q, and NGRID, demonstrating the power of partnership and a shared commitment to cost efficiency, sustainability, and operational excellence.

Daniel Abrahamson 
University of Massachusetts Amherst

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