University of Greenwich – Boiler Replacement

Project Start Date: May 2019
Project Completed: Ongoing
Project Value: £800,000

Based on a world heritage site by the bank of the Thames, the University of Greenwich hosts around 25,000 students from over 100 countries. The University of Greenwich has three campuses: Avery Hill, Greenwich and Medway.
The Medway Campus has a rich naval history. Its red-brick buildings were previously a Royal Navy base and houses the Schools of Engineering and Science.
AS the incumbent AC, AHU and Boiler maintenance contractor for the University, Artic also manage projects across the Estates. A recent example of this is a large-scale Boiler replacement at the prestigious Medway Campus.

THE SCOPE

The project consisted of 2 parts:

Central Services Boiler room:
To strip out 3 existing Hoval boilers and replace with 4 new boilers. Replace the existing flues and install 4 new flues for the new boilers. Artic proposed to remove the existing control panel and install new controls to monitor all the new boilers, pumps, PUs, and ENWA water treatment units. Installation of a new gantry for the secondary pumps and PHE was also proposed.

Pembroke Plantroom:
To replace existing calorifier with 2 new Microfil units. We had to hire temporary PHE to supply the HWS while we stripped out the existing unit to enable us to install the new units safely.

INNOVATION
The original boilers were old and had reached the end of their life span. They were no longer economical for repair, costing the client more money than necessary in breakdown callouts. Following the Client’s main objective to increase capital plant operating efficiency, Artic made sure this was at the forefront of the project from Spec design to final commissioning.

Artic had to make some changes to the design, due to the space and accessibility. Our Contract Manager and the Consultant worked together to redesign the spec in order to reposition some of the equipment as it would not fit on the gantry as per the original consultant drawings. The positioning of the steel posts for the gantry also had to be relocated to enable us to remove the old boilers and locate the new boilers into the plant room.

Upgrading the Controls enabled the boilers to be run in a sequence for more efficiency.
Side stream filtration helps maintain water quality within the LTHW closed water system.