Power Eng 2nd Class case studies
Power Eng 2nd Class · Put your knowledge to work in context.
The Second Class Power Engineer certificate is a senior credential for operating and supervising high-pressure steam plants. It is typically pursued by engineers who already hold a Third Class certificate and want to advance to roles with greater responsibility, such as chief engineer of a larger plant or shift supervisor. The Power Eng 2nd Class case studies are 5 cases and about 3,130 words.
1Rising CO and Unstable Excess O2 on a Packaged Watertube Boiler
You are the shift engineer at a 24/7 processing plant. 2 boiler is a packaged watertube unit rated 60,000 lb/h at 250 psig saturated, firing natural gas through a single low-NOx burner.
647 words, about 3 min2Condensate pH Excursion and Rising Iron in a Steam Plant
Your 150 psig steam plant returns about 65% of condensate. Over three weeks, lab results show condensate pH falling from 8.9 to 6.7, total iron rising from 0.2 to 1.5 mg/L, copper from 0.02 to 0.08 mg/L, and condensate conductivity from 6 to 18 µS/cm.
618 words, about 3 min3Nuisance Overload Trip on a Boiler Feed Pump Motor
You are the plant electrical engineer at a 480 V motor control center. A 250 hp, 1,780 rpm, 302 A boiler feed pump motor has tripped its molded-case breaker twice in two weeks after about 25 minutes of running.
650 words, about 3 min4High Ammonia Discharge Pressure at High Ambient
You are the refrigeration engineer on an ammonia plant. A screw chiller with an evaporative condenser has run all summer at 150 psig discharge.
593 words, about 3 min5Failed Low-Water Cutoff Before a Monday Production Run
You are the operations superintendent at a food plant with three 150 psig boilers. On Friday at 14:00, the weekly test of the float-type low-water fuel cutoff on No.
622 words, about 3 min