hvacr expo saudi - hngl building pressurization success ...saudi aramco: public •findings...
TRANSCRIPT
Saudi Aramco: Public
HNGL Building Pressurization Success StoryPresented by: Nawaf Alhaddad, Stationary Equipment Engineer
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Copyright 2019, Saudi Aramco. All rights reserved.
Saudi Aramco: Public
1
Content
• Problem Definition
• HVAC background
• Root Cause Assessment
• Assessment Action Plan
• Assessment Conclusion
Copyright 2019, Saudi Aramco. All rights reserved.
Saudi Aramco: Public
Problem Definition
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Sand and dust ingress in critical buildings (PIBs, Substations)
Source: https://germzbegone.com/steam-services-deep-cleaning/
Copyright 2019, Saudi Aramco. All rights reserved.
Saudi Aramco: Public
HVAC Background – Pressurization
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Building Pressurization (0.1” -0.25” wg)
Copyright 2019, Saudi Aramco. All rights reserved.
Saudi Aramco: Public
Mechanical Room
Fresh Air Stack
Inertia Filter
Air Handling Unit
Dirty
Air
0
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HVAC Background – Central System
Standard Central HVAC system
Copyright 2019, Saudi Aramco. All rights reserved.
Saudi Aramco: Public
Root Cause Assessment
5Copyright 2019, Saudi Aramco. All rights reserved.
•Assessment
•Previous records
•SMEs visits
•Plants benchmarking
•CSD + Vendor visit
Saudi Aramco: Public
•Findings
•Gaskets and wall cracks
•Auxiliary pressure system
• Inertia filter design
•No flow after inertia filter
•PDI not installed correctly
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Root Cause Assessment
•Assessment
•Previous records
•SMEs visits
•Plants benchmarking
•CSD + Vendor visit
Copyright 2019, Saudi Aramco. All rights reserved.
Saudi Aramco: Public
•Findings
•Gaskets and wall cracks
•Auxiliary pressure system
• Inertia filter design
•No flow after inertia filter
•PDI not installed correctly
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Root Cause Assessment
✔
✔
✘
✔
Probable Root Cause
Copyright 2019, Saudi Aramco. All rights reserved.
Saudi Aramco: Public
Assessment Action Plan
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Inertia filter inlet mesh Inertia filter outlet blades
• Create work scope to clean inertia filters (non-critical and critical buildings)
Copyright 2019, Saudi Aramco. All rights reserved.
Improved
Saudi Aramco: Public
Assessment Conclusion
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• No TAB = Cost Avoidance of $196,000
• Adjusting inertia filters for easy disassembly
• Enhancing HVAC PM list
• Procuring equipment to ease PM
• Creating HVAC Dashboard
• Shared as a Lesson Learned with GO plants
Copyright 2019, Saudi Aramco. All rights reserved.
Saudi Aramco: Public
Questions and Answers
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Thanks for listening. I am glad to answer your questions
Nawaf Alhaddad
SEU, Mechanical Engineer
Copyright 2019, Saudi Aramco. All rights reserved.
Saudi Aramco: Public
Thank You for attending this presentation
Don’t forget to collect your CPD certificate from the CPD collection area
at the event
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