High Efficiency Heater Supports Dairy Spray Drying
In the Quebec province of Canada, a local cheese producer required an indirect gas-fired heater for one of their systems that makes powdered cheese. This project required 42,000 scfm of outdoor air to be heated to 400°F, despite an outdoor air temperature of -40°F. To provide these conditions, the heater must process 20 million BTU/hr. In addition, it had to be 90%+ efficient with high precision controls that met both CSA requirements and food grade construction standards.
To meet the specifications, Munters'
VariMax® IFRG natural gas-fired indirect
heater with a Thermo-Z™ plate heat
exchanger was installed. In order to adhere
to food grade construction standards, the
entire unit, including the baseframe, exterior
casing, and exterior supports were stainless
steel with full seam welding. The control
panels and gas train box were also stainless
steel and wash down rated.
To provide the required BTUs and
precision for firing the system, a Maxon
Ovenpak® burner system with dual burners
and Maxon’s Smartlink control system were
used, which allowed for high precision
control, repeatability, and complete tuning
ability for the air to fuel mixture ratio.
During the manufacturing of the
VariMax system, the customer made
periodic inspections, and conducted shop
and field performance tests to ensure
compliance with CSA standards. Successful
tests and inspections left the customer
confident in the quality and reliability of the
final product. Experience and demonstrated
expertise with indirect gas-heating allow
customers to continue putting their trust in
Munters for their heating needs.