Let’s Compare Different Types of Evaporators

Caloris made its name in evaporation and there are many different types of evaporators to choose from. Here is a rundown of the different types of evaporators that Caloris offers:

MVR Evaporators

MVR stands for Mechanical Vapor Recompression. MVR turbofans generate heating vapors by compression of the water vapors evaporated from the product. The mechanical evaporator process has been widely used for decades and in many industries to harness the energy efficiency of mechanical vapor compression devices to drive evaporation. Check out the CALORIS CONCENTRIX® MVR Evaporator (pictured below).

Steam-Heated Evaporators

In some applications, challenging product properties require more design options than an MVR concept can provide. In others, exceptionally inexpensive steam might be available. In any case, Caloris provides the best available options. Check out the CALORIS FLEXMODE® Evaporator and the CALORIS CUBIX® Evaporators.

The above covers two main ways to power evaporators. These can be used to power the following types of evaporator operations:

Falling Film Evaporators

Falling film evaporation technology means that the product being evaporated falls as a film on the heating surfaces of the evaporators. This film of product is usually on the inside of heat transfer tubes. It is a very efficient method for transferring heat. Because only a small quantity of product is held inside the evaporator at any given moment, the time required for system start-up, rinse-out, CIP and shutdown is minimized. The CALORIS CONCENTRIX® MVR Evaporator is a type of falling film evaporator.

Forced Circulation Evaporators

These evaporators are useful when it is undesirable to boil the incoming liquid for a long period of time (for instance, where crystallization or scaling is an issue). The system instead uses heat exchangers and flash separation along with circulation to remove liquid. The CALORIS CUBIX® is a type of forced circulation evaporator, as is the CALORIS AGILIX® Mobile Evaporator.

Rising Film Evaporators

A rising film evaporator or vertical shell and tube heat exchanger produces steam and vapor within the tube, bringing the liquid inside to a boil. As vapor forms, velocity in the center of the tube forces remaining liquid in a film up against the tube wall (hence rising film). These types of evaporators are used for effluent treatment, solvent recovery and other applications.

As you can see, there are many different types of evaporators. If you are unsure which kind of evaporator is the best solution for your processing needs, our team is always ready to discuss which of the many different types of evaporators is best for you.

Contact Us Today

Call us at 410-822-6900 or send email to problem.solved@caloris.com to speak with one of our engineers. We may request to send a pilot evaporator unit to your location to conduct on-site testing. This will help determine exactly which evaporation technology will work best for your facility. Learn more about pilot testing.


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.