چكيده به لاتين
Today, radiant heaters have various uses in industries, there are several solutions to provide radiant heat that is the best and most cost-effective method is catalytic radiation heaters. Catalytic combustion has many advantages over other methods, including the reduction of emissions, low temperature activation, high thermal efficiency and high life span. In the industrial application of catalytic radiation heaters , the installation of heaters depend on the type of thermal process and the structure of other devices in the industry. One of the disadvantages of catalytic heaters is that their efficiency decreases in the facedown position. The temperature of the surface of the catalytic heater is around 450°C, which is needed in some industries at a higher temperature, and the combination of radiation and forced convection can improve the heater's thermal performance in the industry. With regard to the above, a catalytic radiation heater with forced air flow has been constructed according to the studies. Then, according to previous studies and previous experiments, the catalytic layer has been constructed for proper operation in these heaters and different tests of durability and temperature distribution The surface has been performed and it has been shown that with considering the normal fuel flow for a radiant heater with dimensions of 45 to 120 cm at a rate of 19 liters per minute, with air flow of 1560 cubic meters per hour and fuel discharge 3 times the normal value of 57 , The heater has a good performance in the layer and has a favorable temperature distribution and 99% of the input gas to The heater is used in the reaction. The optimal catalyst layer has been tested with a variety of catalysts such as platinum, cobalt, chromium, zirconium, cerium and manganese and shows high thermal efficiency and high life span.
