Thermal and radiative properties of coal-ash deposits. Technical progress report No. 1, September 1, 1981-February 28, 1982

摘要: Because the energy balance (calorimetric) method is only one not based on local measurements and therefore yields average heat flux across deposit, calorimetric was considered to be preferred for determining effective (conduction plus radiation) thermal conductivity of coal-ash deposit. Some typical results obtained are illustrated in Figure 3. The temperature difference approx. 10 mm deposit layer were typically range from 200 300/sup 0/C; however, it can as low 100/sup 0/C or high 500/sup 0/C. conductivities heating cooling portions same experiment approximately same, indicating that samples did sinter. It expected that, if had sintered, would larger part cycle. This conclusion further supported by visual inspection made at end each run, which indicated no signs fusion sintering. clear a softening point deposits cannot reached present experimental facility, furnace (kiln) capable reaching significantly higher temperatures needed studymore » radiative characteristics slags.« less