Study to Revamp
Repair equipment by providing the right solution to get the results the company wants.
- Re-bundle
- Thermal Re-rating
- Modify
- etc.
Case Studies
Overheating on EJW Coolers
Summary
Engine Jacket Water Coolers overheating exceeded 200°F. EJW Bundle was designed for inlet temperature of 195°F. Cooler unit had been sprayed with water at the air inlet for over four years, causing the fin tube to become damaged and brittle. Engine speed was limited to a maximum of 1000 RPM and gas flow to a maximum of 2.5 MMSCFD.
Challenge
It was the first time HTSI had tackled modification of an air cooler with only minor changes allowed to plenum sizes and fans.
Solutions
- Thermal re-rating
- Replace and re-select Moore Fans
- Replace existing bundles EJW & TAW, re-arrange tube pitch, diameter & fin OD
- Modify plenum structure
- Replace and re-design fixed louvers to suit new bundles
- Install inlet bell
Result
- Inlet temperature now 175–195°F
- Engine speed runs at 1050 RPM
- Gas flow increased to 3.7 MMSCFD