Heat Recovery Steam Generator Technology

11

Fast-start and transient operation

Joseph E. Schroeder,    J.E. Schroeder Consulting LLC, Union, MO, United States

Abstract

Power plants operate in cyclic service where the demand for dispatchable operation is a common requirement. This chapter discusses the issues associated with cycling. It also presents a general discussion of fatigue damage, and the parameters that are most influential are identified.

Keywords

Cycling; fast start; transient; fatigue; creep; startup; shutdown

Chapter outline

11.1 Introduction 231

11.2 Components most affected 233

11.3 Effect of pressure 233

11.4 Change in temperature 234

11.5 Materials 241

11.6 Construction details 243

11.7 Corrosion 244

11.8 Creep 244

11.9 HRSG operation 245

11.9.1 Startup 246

11.9.2 Shutdown ...