Problem: Solved | Evaporator Modification Support

A Caloris customer decided to alter the operating parameters of their evaporators to support new production goals and production of new products. In addition, upstream processing changes were expected to require adjustments within the evaporation process.

The primary change to the evaporation process was the previously-cold feed stream would now be warm. A Caloris engineer was requested on-site as the change was implemented, to keep an eye on the evaporators and identify any required adjustments. A three-day visit was scheduled for this purpose.

In addition to monitoring related to the increased feed temperature, our engineer discovered several maintenance and operational issues in need of attention. He noticed some inconsistencies in the evaporator automation, causing temperature control issues, and some operating procedures in need of standardization and consistent implementation among operators. Most notable was the observation that some operators had developed procedural “workarounds” to deal with downstream operational issues, that were resulting in increased fouling and product foam. Automation recommendations were made by the Caloris engineer to eliminate the need for the irregular procedures.

CIP issues were also identified, including residual product scale on the evaporator heat treatment surfaces, resulting in recommendations to optimize chemical effectiveness.

Meet The Engineers

Tom Schappeler

Tom Schappeler

Process Engineering Manager

Bob Vail


In addition to helping the customer with the increase in feed temperature, our engineer was able to identify multiple additional issues and recommended solutions to streamline operation. The customer ultimately expressed interest in a program of basic evaporation process training for all operators.

Need Assistance with An Evaporator Modification?

If you are considering changes to your process, Caloris can guide you through the adjustments that will need to be made, and help with operational challenges as well. Contact us at 410-822-6900 or to arrange for a process assessment at your facility.


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.