ON THE FOULING OF HEAT TRANSFER SURFACES OF CFB OIL SHALE BOILER
H. ARRO
A. PRIKK
Tallinn Technical University
Thermal Engineering Department
Tallinn, Estonia
J. KASEMETSA
SE Eesti Energia
Tallinn, Estonia
| Supposed fouling of heat transfer surfaces was one of the
main questions needing clarification along interpretation of the results of Estonian oil shale
test burning in circulated fluidized bed (CFB) test devices [1]. Knowing of the operation
conditions of heat transfer surfaces is urgently needed for designing new oil shale fired CFB
boilers. The detailed research of this problem was impossible because of construction of test
devices and short duration of the tests. Nevertheless, the new test data enable to prognose, with sufficient probability, the operation conditions of heat transfer surfaces in CFB boilers, keeping in view their fouling. |