Summary of results from the Berkely in-bed tube erosion simulator

被引：8

作者：

Hou, PY ^{[1
]}

MacAdam, S ^{[1
]}

Zhang, H ^{[1
]}

Stringer, J ^{[1
]}

机构：

[1] ELECT POWER RES INST,PALO ALTO,CA 94304

来源：

MATERIALS AT HIGH TEMPERATURES | 1997年 / 14卷 / 03期

关键词：

fluidized bed combustors; in-bed particles and tubes;

D O I：

10.1080/09603409.1997.11689558

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The Berkeley rig was designed to simulate the particle hammering interactions between in-bed particles and tubes within bubbling fluidized bed combustors. To achieve this in a controlled manner, a rod shaped specimen is actuated a shea distance within a partially fluidized bed, consisting quartz particles with an average size of 800 mu m. The rig has been used to investigate the characteristics of tube metal loss and its dependence on temperature. Most of the tests were performed isothermally by varying the bed temperature within the studied range, some were carried out by internally cooling the specimen while keeping the bed temperature constant at 700 degrees C. This paper reviews the results that have been obtained from these simulations. Earlier conclusions from cold model studies are summarized, and the effects of temperature, temperature gradient, bed condition and bed material deposits on tube wastage are presented and discussed.

引用

页码：325 / 335

页数：11

共 32 条

[1] WEAR OF 6061 ALUMINUM TEST SPECIMENS DURING AN IN-BED EXPOSURE TO AN AFB COLD MODEL ENVIRONMENT [J].