Though it may be possible to model any complex process mathematically, cold
model experimental studies of the process/operation are considered to be e
ssential and important. These studies are less difficult to perform than th
e actual processes, and they are useful in better understanding the complex
processes and operations, foreseeing the problems that may crop up during
the actual operation, and optimizing and designing the system. Experimental
studies are carried out on a transparent semicircular cold model of a reci
rculating fluidized bed (RCFB) incinerator intended fur burning low-heat-co
ntent liquid waste. Information from the cold model experiments are used to
design the incinerator by choosing suitable operational and design paramet
ers.