CALORIS CONCENTRIX® MVR Evaporator Awarded Patent

Easton, MD — The CALORIS CONCENTRIX® MVR Evaporator has been awarded a patent from the U.S. Patent and Trademark Office.

U.S. Patent No. 10,046,249 was awarded to Artur Zimmer, CTO and co-founder of Caloris Engineering in Easton, Md., on August 14. The patent details a compact mechanical vapor recompression (MVR) evaporator system. Mechanical Vapor Recompression generates heating vapors by mechanically recompressing the water vapors evaporated from the product or waste stream being processed by the evaporator.

“The CALORIS CONCENTRIX® MVR evaporator is the cornerstone of our compact evaporation line,” said Caloris President & CEO Jim Peterson. “It has already established a strong record of robust performance, and we look forward to offering this patented technology to more customers throughout North America.”

The CALORIS CONCENTRIX® MVR evaporator delivers the highest available energy and operational efficiencies in a compact evaporator design, with models evaporating up to 100,000 pounds (12,000 gallons per hour) of water per hour at an efficiency of up to 200 pounds (24 gallons) of water evaporated per kilowatt of power consumed (42 watts/gallon).

The Concentrix MVR is a high-efficiency falling film evaporator system using proprietary turbofan technology for heating by MVR, driving the evaporation process with electrical power. Falling film evaporation technology means that only a small quantity of product is held inside the Concentrix at any given moment, minimizing the time required for system start-up, rinse-out, CIP and shutdown.


Built in a concentric configuration, the Concentrix evaporator uses proprietary Caloris technology with a standard turbofan wheel to efficiently discharge compressed heating vapors 360-degrees outward from the fan into the surrounding heat exchanger tube bundle. By arranging the heat exchanger bundle around the proprietary Caloris vapor separator vessel and mounting the turbofan on top of the vapor separator, no vapor ducting is required to interconnect the evaporator components.

The CALORIS CONCENTRIX® MVR evaporator can be used for a number of evaporation jobs. Multiple cheese processors throughout the U.S. use the Concentrix to concentrate whey, WPC and whey permeate. Dairy manufacturers and others also use the Concentrix to recapture clean water from wastewater streams and concentrate what’s left for easier disposal.

In 2016, Industrial Wastes and Wastewater Digest recognized the installation of a CALORIS CONCENTRIX® MVR evaporator at a Honda auto parts manufacturing plant as a Top Project for that year. The Concentrix unit there is tasked with reducing the facility’s daily wastewater volume by 90% so the water recovered can be reused for plant needs such as cooling tower makeup water, etc.

About Caloris Engineering, LLC

Caloris Engineering is a process technology company that engineers and builds thermal and membrane processing systems for the juice, dairy and other food industries to create the best achievable concentrates and a wide spectrum of powders produced on Caloris Tower or Compact Multiple Stage (CMS) spray dryers. Caloris equipment is also used to treat industrial wastewater, including the Caloris Thin Film Dryers (TFDs) that convert brines and other wastewater concentrates into powder. Caloris technologies are consistently energy efficient for lower costs and reduced carbon footprints. Caloris was founded in 2006 in Easton, Md. Learn more at

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About Caloris

Caloris transforms process systems design for the better with unexpected, future-focused solutions that solve real operational problems. We engineer efficient, dependable and productive solutions that also improve environmental sustainability where practical. Designed with the end user in mind to drive plant productivity. Caloris offers evaporation, membrane filtration and spray drying process systems for food and dairy industries, as well as for water reuse and wastewater treatment applications. Both Caloris’ custom and pre-engineered packaged systems are designed to meet our customers’ specific concentration/purification needs utilizing the most cost effective and energy efficient technologies available. Whether concentrating dairy, food or juice products at a high-volume production facility, or processing industrial wastewaters to reduce transportation and treatment costs and recover re-usable water, Caloris provides a range of options and technologies.