MEP Means Coordination Jason Richards Peter Martin MEP Means - - PowerPoint PPT Presentation

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MEP Means Coordination Jason Richards Peter Martin MEP Means - - PowerPoint PPT Presentation

May 18, 2023 740 likes •889 views

MEP Means Coordination Jason Richards Peter Martin MEP Means Coordination Western Link, Hunterston & Flintshire Bridge 1 billion project bringing renewable energy from Scotland to England and Wales. Project will play a key role

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MEP Means Coordination

Jason Richards Peter Martin

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MEP Means Coordination

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Western Link, Hunterston & Flintshire Bridge

  • £1 billion project bringing renewable energy from Scotland to England and Wales.
  • Project will play a key role in helping the UK meet its renewable energy targets.
  • Project includes DC subsea and underground cables, incorporating a converter station at each end.
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Marine Cable

  • Marine cable is 385km long.
  • Longest 2,200MW capacity high voltage direct current cable in the world.
  • First subsea link to use a DC voltage level of 600,000 volts.
  • Sufficient electricity to meet the needs of around 2,000,000 people.
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Converter Stations

  • Stations convert DC electricity to AC to allow use in existing National grid system.
  • Equipment had to be located internally to protect from the coastal salt damaging environment.
  • Design for the converter stations was undertaken using Revit.
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Federated Model

  • Multi-discipline design involving Architects, Structural, MEP and client appointed specialist engineers.
  • Multiple buildings were spread across two sites so shared coordinates had to be agreed and published to maintain alignment.
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  • Electrical equipment has very high heat gains.
  • Natural ventilation was preferred but unachievable due to extreme external design conditions.

Thermal Modelling – Internal Environment

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Project

  • Large Residential regeneration

project – First development site; 6 blocks consisting high-rise, maisonettes and extra care facility. Engineering Challenges

  • Site wide electrical demand could not

exceed existing.

  • Emphasis placed on passive design

features to reduce the need for cooling; hence lower electrical demand. Lessons Learnt/Benefits

  • CIBSE TM52 criteria used to assess
  • verheating risk.
  • External solar shading devices

modelled in IES to mitigate use of cooling.

Thermal Modelling – Occupant Comfort

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  • Subsequent to thermal modelling natural ventilation was ruled
  • ut.
  • All air mechanical ventilation system
  • Large ducts to coordinate in small plant space.
  • Revit enables detailed solution that would be impossible in 2D.

Plantrooms

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Air Handling Units

  • Very large Air handling units had to be accommodated.
  • 4no. units 9.3m (L) x 6.5m (W) x 3m (H), 33 tonnes each supplying 42m3/s.
  • Early collaboration with Structures in order to accommodate air handling units in model.
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  • Coordination of services with sensitive electrical equipment clearance zones.
  • Any outages are business critical and would have serious implications.
  • Clearance requirements based on record 2D sectional drawings.

2D Problem

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  • Created 3D Spheres in order to provide a visual aid and a means of clash detection.
  • Real time model fly through presented to other disciplines to demonstrate coordination.

3D Solution

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  • Valve Hall – Ductwork drops coordinated around clearance zones, ductwork sizes,
  • AHU plantroom duct external – had to get all fresh air intakes to one side and exhaust on other side

to prevent cross contamination of air.

  • AHU plant room internal – provide internal 3D view of plantroom, any visible space left is retained

for maintenance and access requirements of the air handling units.

MEP Model Demo