Search Assignment Sample For Ireland Students

For information and reference only – not to be submitted as your own work.

This sample shows how a first-pass bioreactor P&ID can be documented for the VOMP3011 “From URS to PQ” module when a hand-drawn sketch cannot be reproduced on screen. The brief is on our live page, VOMP3011 P&ID-1: bioreactor sketch and performance requirements. For a step-by-step method, read the companion guide, how to draw a bioreactor P&ID. If you want structured support with a technical write-up, our report writing services page explains what we offer.

Everything below is a worked model, not a template to copy. Tags, setpoints and valve choices are illustrative, and your own drawing must reflect your lecturer’s brief and your own design decisions.

What this sample covers

Step 1-1 asks for a basic P&ID of a jacketed, agitated bioreactor with a bottom outlet pump and fourteen named connections. Step 1-2 asks for the primary performance requirements, each expanded in a sentence or two. A drawing is the right deliverable for Step 1-1, so this extract gives you the content that sits behind the drawing: an equipment list, a connection schedule that maps every one of the fourteen lines, and the tag conventions. Step 1-2 follows as a requirements table that also shows how each requirement would later be verified in qualification.

Step 1-1: layout of the bioreactor P&ID

Draw the vessel (R-101) in the centre of the page with the jacket shown as an outer shell. Place the agitator motor on top, the shaft entering through a mechanical seal, and the impeller inside. Put gas lines on the left of the page, liquid additions on the right, utilities at the top and the bottom outlet and pump at the bottom. Keep process flow left to right wherever you can, and avoid crossing lines. Symbols and instrument identification follow ANSI/ISA-5.1 [1], and sanitary design assumptions follow ASME BPE [2].

Equipment list

Connection schedule for the fourteen lines

Each row below is one connection from the brief. Use it as a checklist against your own drawing.

Instrument tag conventions

Under ANSI/ISA-5.1 [1], the first letter gives the measured variable (T temperature, P pressure, F flow, L level, A analysis) and later letters give the function (E element, T transmitter, I indicator, C controller, V valve, S switch, H high, L low). A tag such as TIC-101 therefore reads as temperature indicating controller, loop 101. Keep the loop number the same for all devices in a loop, so TE-101, TT-101, TIC-101 and the control valve are easy to trace. Check which edition of the standard your module uses, because current editions have been updated since the older 2009 version.

Drawing notes that markers look for

Put sterile filters on both the air inlet and the exhaust. Show the steam trap at every low point of the SIP route so condensate leaves and does not pool. Show the exhaust pressure controller, since without it the vessel cannot hold a set pressure. Show RD-101 discharging into T-102, not to atmosphere. Keep pipe stubs short to avoid dead legs, a general hygienic design principle covered in ASME BPE [2], and let the vessel drain completely through the bottom outlet.

Step 1-2: primary performance requirements of a bioreactor

A performance requirement is a measurable statement of what the bioreactor must do. Written in the user requirements specification (URS), each one becomes a design input and later a test. The EU GMP Annex 15 treats the URS as the reference point for the whole qualification lifecycle, with OQ checking performance across the operating range and PQ confirming performance under normal conditions [3]. The values below are illustrative only; your own limits would come from the process.

How the requirements link to qualification

The ISPE Baseline Guide on commissioning and qualification describes a risk-based approach where requirements are confirmed through verification, rather than testing every item the same way [8]. In practice, the URS drives the design and the P&ID, factory and site acceptance tests follow, then IQ, OQ and PQ. A requirement you cannot test is a requirement that needs rewriting.

Common mistakes in this task

Students often draw all fourteen lines but forget instrumentation, so the drawing shows plumbing and no control. Others mix up the SIP condensate return with the process water return, or leave out the sterile filter on the exhaust. In Step 1-2, vague phrases such as “good mixing” lose marks; tie each requirement to a measurable parameter instead.

Further help

If you would like a second pair of eyes on a P&ID assignment, see our coursework help page or the university assignment help overview. We provide model answers and guidance, and you remain responsible for what you submit and for your institution’s rules.

About the expert

Mary Jones holds a master’s degree in Chemical Engineering from the National University of Ireland, Galway. Her profile lists process design and reaction kinetics among her specialisms and more than ten years’ work as a chemical engineer, including on pharmaceutical plant projects.

References

1. International Society of Automation (2024) ANSI/ISA-5.1-2024, Instrumentation and Control – Symbols and Identification. Available at: https://www.isa.org/products/ansi-isa-5-1-2024-instrumentation-and-control-symb
2. American Society of Mechanical Engineers (2024) ASME BPE-2024, Bioprocessing Equipment. New York: ASME.
3. European Commission (2015) EudraLex Volume 4, EU Guidelines for Good Manufacturing Practice, Annex 15: Qualification and Validation. Brussels, 30 March 2015.
4. European Commission (2022) EudraLex Volume 4, Annex 1: Manufacture of Sterile Medicinal Products. Brussels: European Commission.
5. Doran, P.M. (2013) Bioprocess Engineering Principles. 2nd edn. Waltham, MA: Academic Press.
6. US Food and Drug Administration (n.d.) 21 CFR Part 11: Electronic Records; Electronic Signatures. Available at: https://www.ecfr.gov/current/title-21/chapter-I/subchapter-A/part-11
7. European Commission (2011) EudraLex Volume 4, Annex 11: Computerised Systems. Brussels: European Commission.
8. International Society for Pharmaceutical Engineering (2019) ISPE Baseline Guide: Commissioning and Qualification. 2nd edn. ISPE.