During the holding period, steam supply
was still required to maintain the temperature, and at the end of
the holding period more steam was consumed as the MSW density
decreased, thus increasing the available volume inside the reactor
and further altering the MSW inside the reactor. Furthermore, as
shown in Fig. 4, shortening the holding period, such as in the
A11 case, will reduce the fuel and water consumption, but the
products will also have different characteristics.