02 – PROCESS AIR
Other Heat Exchangers
The line of process air heat exchangers type AXA is used in industrial applications where you never compromise.
Industrial drying processes require high performances, high temperatures and compact units, achieved electrically or by means of a heat carrier of high temperatures and often high pressure too. But they also often require cooling and dehumidifying.
The AXA models are dedicated to these tasks, and their design offers supreme reliability and low operation costs.
Possible heat sources for these are electrical heating elements, saturated steam, heat transfer fluid (HTF), hot water and combinations of these.
There are many options available using the AXA process air heat exchangers.
Technical description
Design according to PED 2014/68/EU & EN-standards. CE-marked and with full documentation.
Heating of process air is very often done electrically (resistances), by heating media such as saturated steam, heat transfer fluid (HTF) or by hot water:
Thermal fluid air batteries heat by hot circulating thermal fluid (hot oil) up to 300°C at atmospheric pressure where the heating is provided by a so-called thermal fluid system.
Water-based air batteries are available both as heaters using hot water, and as coolers using cold water, glycol or a refrigerant.
The coolers are also available in a special dehumidifier design for drying of process air.
Gas-to-Gas heat exchangers – also called recuperator are widely used for heat recovery from exhaust gas or air. They comes in an affordable plate design or the extreme strong tube design.
Options are extractable sections for easy pull-out, or with flanged duct connections, gas-tight housing, reinforcements, adjustable legs and instrumentation / armatures.
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Typical capacities, dimension tables, diagrams, illustrations, photos with examples are collected in our Technical Knowledge Center.
Technical data:
Other Heat Exchangers
| Subject | Technical data |
| Brand | AB&CO (Copenhagen, Denmark) |
| Models | AXA |
| Option 1 – Heating | 1) Thermal Oil / Heat Transfer Fluid (HTF) heating up 100.000 kg/h air up to 290°C by HTF 300°C |
| Option 2 – Heating & Cooling | 2) Hot Water / Cold Water / Brine / Glycol – 100.000 kg/h air |
| Option 3 – Heating & Cooling | 3) Exhaust Air & Exhaust Gas heating fresh or clean air up to 100.000 kg/h air 500°C |
| Extent of the Standard Design | – Compound finned tubes (extruded fins) – Fin plates – Plain tubes – Industrial gastight cabinets w. flanges – Simple and affordable open designs |
| Options / Special Design | – Air-to-Air cross flow heat exchangers – Dehumidifiers with reheater (air drying) – Many optional materials as standard – Wash-off arrangements – Ultra large sizes and hybrids (combinations) – Special unique customer design |
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