porous burner

Key Features

Porous burner

Porous    burners    emit    due    to    the    extremely    high    surface    temperature    more    infrared radiation    than    conventional    radiation    burners.    As    the    heat    transfer    through    thermal radiation   is   higly   efficient,   porous   burner   are   the   ideal   solution   for   applications   which necessitate   fast   and   homogeneous   heating.   Porous   burners   can   be   designed   to   comply with customer requirements and are therefore suitable for a wide range of applications. The   utilization   of   porous   burners   increases   productivity   and   quality   while   simultaneously reducing the specific energy consumption.  The   excellent   controllability   of   porous   burnes   increases   the   efficiency   of   production   plants and   reduces   the   CO-   nd   NOx-emissions.   Problems   that   might   result   from   high   exhaust gas velocities, when conventional combustion technologies are applied, can be avoided. Porous    burners    can    be    operated    with    natural    gas,    LNG,    biogas,    methane,    ethane, propane, butane, weak gas and hydrogen/methane mixtures.

Application examples

Porous burner technology

The   flameless   combustion   concept   of   a   porous   burner   is   based   on   the   reactions   of   a      fuel gas/air   mixture   that   occur   in   porous   media.   A   premixed   fuel   gas/air   mixture   passes      a flame    trap    before    reacting    in    the    combustion    zone.    The    hot    flame    transfers    heat convectivly   to   the   porous   material,   which   contributes   by   heat   conduction   and   thermal radiation to the intensive heat exchange within the combustion zone. The   temperature   of   the   combustion   zone   reaches   up   to   1350   °C   and   emits   a   high   amount of    the    combustion    reactions    as    infrared    radiation.   The    wavelength    of    the    maximum radiation intensity depends on the surface temperature and varies from 1,8 m – 2,7 m. The   porous   burner   technology      therefore   differs   fundamentally   from   other   combustion technologies, which rely upon a  flame stabilised in free space.   Characteristic properties in radiation mode Specific heat:   100 - 2000 kW/m² Specific radiation power: 75 - 400 kW/m² Maximum radiation efficiency: ca. 47 % Air excess ratio: 1,3 - 2 Surface temperature: 800 °C – 1350 °C Furnace temperature: < 1000 °C Time to reach maximum temperature: < 30 s
o high infrared radiation output o low NOx and CO emissions o high combustion stability o high specific power up to 2 MW/m² o high turn down ratio 1:10 o low exhaust gas velocity o controllable surface temperature
Prinzip der Porenbrennertechnologie
Issendorff Thermoprozesstechnik e.K. I Bahnhofstr. 19 I D-91083 Baiersdorf I info@-tpt.de I USt-IdNr.: DE 268 299 066
•	laddle preheating		 •	cooling lehr •	die casting mold preheating •	coil degreasing •	glass bending •	hot air production •	pyrolysis furnace •	surface treatment •	drying •	tool preheating •	welding-part preheating porous burner at high power elevator furnace with porous burners