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Thermally Induced Stress Cycling (Thermal Shock) in Firetube Boilers

The problem of thermally induced stress cycling (loosely referred to as thermal shock) has been apparent for many years, particularly in boilers installed in hot-water heating systems.

Comparison of Fatigue Assessment Techniques for Heat Recovery Steam Generators

In the past several years the cyclic nature of Heat Recovery Steam Generators, HRSG’s, has increased dramatically. There are many methods for evaluating cyclic service. Several methods for evaluating cycle life are compared for their use on HRSG’s.

Deaerator Performance Testing... A Guideline

The deaerator test procedure should be agreed on by all parties prior to selection of the system or the procedure should be defined in the system specifications.

The Packaged Commercial Watertube Boiler 

Since its initial design in the latter half of the Eighteenth Century, the Watertube boiler has undergone a myriad of changes, all of which were essentially driven by the demand for higher capabilities, increased safety, and longer useful life.

Why Packaged Firetube Boilers?

The 1930’s saw the boiler industry in a period of transition. Earlier units had relied mainly on solid fuels such as coal. The 1930’s were the beginning of a period of conversion to oil and gas fuels.

Historical Advancement of Fire-Side Heating Surface in Firetube Boilers

The purpose of this presentation is to discuss design development, over the past 50 years, of horizontal steel fire-tube boilers, specifically relating to reduction in boiler fire-side heating surface per Boiler Horsepower. It is emphasized that only horizontal steel fire-tube boilers are discussed herein and that parallel logic to the design of other types of boilers should not be drawn.

Ware Boiler Book On-line

A great introduction to boilers.

Ware does not warrant this information for any uses other than those ordinarily associated with such information and makes no warranty that the information is fit for any particular purpose of the reader