Archive for March 2021
What’s the difference: Direct Vs Indirect Fired Heaters?
What is the technical difference between direct fired and indirect fired? In terms of process air heaters, what are the features, benefits and applications of direct fired vs indirect fired? Direct Fired “Direct Fired†means just that; the burner is fired directly into the process air stream to heat it. Air heaters that are direct…
Read MoreLow-NOx Process Heat Equipment
NOx is a greenhouse gas formed during the combustion of fossil fuel and tends to increase with higher temperatures. NOx emissions interact with atmospheric gases to produce low air quality, acid rain, vision and respiratory problems for humans, and destroy plant life. Because of their ill effects, the Environmental Protection Agency (EPA) regulates NOx and…
Read MoreFluid Bed Dryers & Process Air Heaters
The fourth and final type of dryer that we will discuss that utilizes air heaters is a fluid bed dryer (or fluidized bed dryer). According to Wikipedia: “A fluidized bed is formed when a quantity of a solid particulate substance is placed under appropriate conditions to cause the solid/fluid mixture to behave as a fluid.†Fluid Bed Diagram…
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