Please let us help you

You have to accept our privacy policy to send your request.

Ask a question

How can we help you?

Take me to the corporate home page
By selecting you approve our cookie policies

User identification is invalid

Ups! Something went wrong. Please try again later.

User identification is invalid

Ups! Something went wrong. Please try again later.

AT_Case_CrawfordEquip_ThermoZ.jpg

High-Temperature Heat Exchanger Captures Waste Heat from Incinerator

Crawford Equipment & Engineering Company of Orlando, Florida offers a complete line of services related to industrial process heating equipment, including design, fabrication, and sales. With such diverse capabilities, they regularly find uses for Munters air-to-air heat exchangers. The company recently installed a unique two-stage energy recovery system for a well-known automotive parts manufacturer that fabricates headlight lenses.

One of the processes in the plant involves applying a chrome coating to the lenses. A thermal oxidizer incinerates isopropyl alcohol and the butyl acetate fumes that result. A Munters Thermo-Z® heat exchanger recovers heat from the incinerator’s exhaust at 1400°F, which preheats inlet effluent air from 123°F to 1180°F. In doing this, the heat exchanger operates at an almost-unheard-of efficiency of 83%.

In the second stage, also supplied by Munters,
a water coil in the exhaust stream uses 366°F
air coming out of the first state heat exchanger to heat a water-glycol mix from 160°F to 190°F. The water then flows to a cleanroom in the plant, where a forced air fan blows ambient air across a second coil, heating the air from 70°F to 180°F. This hot air goes to a flash-off zone, where it cures a sprayed-on clear coat and solvent applied to the lenses. Using waste heat from the thermal oxidizer to heat water in this fashion eliminates the need for a boiler, saving the customer an expensive capital cost.

Quick facts

  • Eliminate boiler capital cost
  • Smaller carbon footprint
  • Lower plant operating cost