Maintenance & Reliability
HP Reliability: Tackling your seal problems
A recent pump reliability improvement issue might serve as a model for tackling sealing issues in modern refineries. This one concerns crude vacuum bottoms pumps and explains a North American refinery..
Estimating corrosion in metallic stacks caused by hydrochloric acid
Simple method can be used to calculate the dewpoint temperature
Case 32: Piping flexibility concerns
Thermal upsets can cause pump problems due to piping loads
Delayed coking turnaround involving three civil engineering projects
Innovative project construction phasing, and the combination of precast, cast-in-place and pre-tensioned concrete construction technologies resulted in a proper restoration
HP Reliability: Vibration limits: Is there a consensus?
An experienced reliability manager recently asked our opinion on the subject of turbomachinery vibration. He and his staff had been discussing the vibratory behavior and applicable settings on one of ..
Understand cavitation in reciprocating pumps
Use these guidelines to help avoid problems
HP Reliability: Reasonable pump life assessed from published statistics
In the preface to a recent Pump User's Handbook (ISBN 0-88173-517-5) we alluded to pump failure statistics. These failure statistics are often translated into mean-time-between-failure (MTBF). For wha..
Case 31: The analytical modeling niche
A simple model can greatly expand your equipment knowledge
Use the system approach to spare parts management
It yields substantially better results than the commonly used item method
Pitfalls of operating pumps at part load
The risk in terms of reduced reliability and safety is not worth it
- BHP awards charter contracts for two ammonia dual-fueled vessels 7/3
- TOYO develops MRF-Z Neo—A compact reactor optimized for small-scale green methanol production 7/3
- China's Shandong raises fuel oil import tax rebates for some refineries 7/3
- Executive Viewpoint: Heavy industry, light footprint—Helping the HPI run leaner and cleaner with AI 7/3
- Digital Feature: Flare system design—The importance of periodic evaluation of existing facilities 7/2
- Valmet to deliver Valmet DNA DCS to a bio-based process plant in Portugal 7/2
