A new type of the chemical reactor "Spiral Reactor", which is considered to be more effective for the high-temperature chemical reaction than the conventional tubular reactor, is proposed.
As a first step to the theoretical study, equations of the temperature profile in the spiral reactor are derived and the method of the solution is given for an approximated circular model. A given example is solved by the proposed method. The result shows that about 70 % of the heat loss in case of the equivalent tubular reactor were used, may be saved by using the spiral reactor.