HAB-E electric hot air generator

The HAB-E is a hot air generator that works without pressure: air sweeps turbulently over the surfaces of electric heating elements inside a stainless steel casing and warms up. TSB builds it for up to 40 MW and air temperatures of up to 700 °C (1300 °F). With no fuel to burn, there is no burner, flue or fuel tank, and no COx, NOx or SOx is released at the point of use.

Hot air is available 3–5 seconds after start-up, and heating stops the moment the unit is switched off; with nothing stored or preheated, there are no standby losses. SSRs adjust heater output proportionally in stages, so the generator runs at full power at peak demand and drops to as little as 1 kW if needed, holding temperature by room or outlet temperature. Nearly all electricity becomes heat, giving efficiency close to 100 %. As only air passes through, freezing, bursting or leakage cannot occur. Typical uses are drying bricks, ceramics, ores, timber, paper, textiles, powdered chemicals and foodstuffs.

Casing sheets are AISI304, AISI309 or AISI310S stainless steel, chosen by the required air temperature, and the heating elements use seamless AISI304, AISI316 or AISI310S tubes; sheaths up to 1 mm thick resist corrosion and mechanical load. The Incoloy-sheathed elements run at 70–75 W/in² and withstand overvoltage of up to 10 %. The PLC supervises high-temperature, outer surface temperature, fan pressure and heater surface temperature protection as well as emergency shutdown, and shares data via Modbus, Modbus TCP/IP or Profinet.