I & E ENG Department Summer Intern 2016

August 5, 2016

I & E internPhillip Arteaga

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Agenda

About Me Purdue University EE

Overview of selected activities Reconciliation of DCS & SIS cabinet IO Thermowell study Wrap Up

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Programmed Motor Protection Relays in BU-521 (Propak) This Relay monitors the performance of the motor control starter,

determines if it goes outside acceptable parameters, and trips it Wrote a procedure for the relays, which is now in the validation process Worked with Rockwell and Eaton

Work with my supervisor on the instrument air compressor to troubleshoot the problems using special equipment such as the Fluke 1736 Power Logger , and read and learn about this device

Assisted in use of the Fluke 1736 as it was used to measure voltage and current of the 3 phases at the same time when energized and tracks it The electrical contactor needed to be replaced

Overview

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Cataloged the DCS and SIS cabinets: these are the control systems that run the plant and keep it safe

Loop sheet is a drafted drawing of the IO module, which show how the plant was originally designed and modified over time

DOC 4000 is a recently added software utility that surveys the control systems to tell what channels are used

A third resource is the actual field termination strip in the IO cabinet

DCS (Distributed Control Systems) & SIS (Safety Instrument Systems) reconciliation

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Loop Sheet (ENG) Doc 4000 (Controls)

Field (I &E)

Spare

Spare

Example 1: Loop diagram revision not yet complete

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Example 2: Spare IO not yet documented with a loop diagram template

Loop Sheet (ENG) Doc 4000 (Controls)

Field (I &E)

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Example 3: IO point documented, but pending installation

Spare

Loop Sheet (ENG) Doc 4000 (Controls)

Field (I &E)

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Area 100, 239 sparesArea 200, 168 sparesArea 300, 202 sparesArea 500, 115 sparesArea 900, 100 sparesOver 400+ IO modules in the plant checked as well as terminal strips Hire a contractor to update and redline loopsheets due to high percentage of inconsistencies found when comparing loopsheets with the field and DOC4000

Findings & Recommendations

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A thermowell is made for holding a temperature element within the pipe; it is exposed to the process flow and has to withstand process conditions

Calculate whether a thermowell needs to be replaced, or passes per the most recent standards

Many Dimensional and Process data are input to thermowell design calculation

Thermowell Study

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New ASME PTC 19.3 standard (2010) requires more conservative design

Why are we doing this study? To confirm the thermowells meet new standard

Process data for some wells needs to be collected to perform further calculations, but so far those completed look good

Findings & Recommendations

outside the pipe inside the pipetypical break point

What I enjoyed “if your not learning something new everyday your

doing something wrong” John Brubaker What I didn’t enjoy

The 3 hours round trip drive which has been some days up to 5 hrs

Suggestions Improve set up with designated engineer and

technician as a mentors Fall

Back to school at Purdue

Wrap Up

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Thank you For giving me this opportunity to work here.

Thank you & Questions