HYDRAULIC AND FIRE PROTECTION CONSULTANTS
SYDNEY - BRISBANE

You may have wondered what THE LHO GROUP have been up to recently. This year we have been celebrating our 40th year of service to the construction industry.  The LHO executive resolved that the group would introduce new blood into the management of LHO and have appointed a new director,  Peter Stewart, and new associate, Simon Matthews.
This news letter  comes as a means of informing our clients of the changes in LHO management and also to show off some of the more interesting and challenging projects that the group has recently been associated with.
In an increasingly green world, you will see that we are finding sustainable energy and the conservation of water are becoming much more relevant as part of LHO design responsibilities. We see this as good news both for ourselves, our clients and the community. 
 

AYERS ROCK RESORT

Designed by Cox Richardson Architects and built by Bovis Lendlease, the Ayers Rock Resort at Yulara, located some 30km from Uluru, has undergone a major upgrade and refurbishment to all of the hotels within the resort including the creation of a brand new luxury boutique resort located a remote 2km from the main township creating a unique desert experience.

A project like this is ultimately challenging to The LHO Group. The remote desert location attributes to the high cost of fuel and utilities. The new accommodation uses hot water heated by local solar boosted technology, taking full advantage of the geographic location. There are three types of water reticulation at the resort, Neat Bore Water – for WC flushing and fire fighting purposes, Reverse Osmosis Treated Bore Water – for drinking and ablutions and Treated Effluent for irrigation. Due to the aggressive nature of the local water supply polyethylene pipeline materials were used throughout the resort to provide longevity and low maintenance of the reticulation systems.

Originally built in 1983, after 20 years some plant had come to the end of its life. The hot water system within the central energy plant was no exception. Employing latest technology and innovative ideas, The LHO Group designed a new hot water system to serve two hotels of some 200 rooms saving energy costs in excess of 50%. This was done using condenser waste heat as a preheat to the main heat source preheating the inlet cold water to 30oC for free. Four relatively small power output boilers of 95% efficiency were synchronised to automatically ignite on demand only as required. Hot water is stored in a modular set up of highly insulated heat exchangers. A future proposal is to add a series of parabolic solar panels to provide even further savings in excess of a further 50%.

Ayers Rock Resort will continue to expand with the growing of tourism to the Red Centre. The LHO Group was commissioned to undertake a study of the existing water main infrastructure and its performance over the next ten years compared with the predicted population increase. A computer model was created and both the treated and untreated water systems were modelled at peak flows. The inefficiencies within the infrastructure were determined and an upgrade of the water mains was designed incorporating some 6km of new mains and an upgrade of the pumping system.

Project Director: Don Oxley

Hotels and infrastructure designed by Dale Lovett

New hot water plant designed by David Creasey

 

 

 

 
 

ST VINCENTS HOSPITAL

Project Managed by The Capworks Group and designed by Bligh Voller Neild Architects, involved the demolition of the existing Xavier building and the complete construction of the Public Hospital and the extension of the Private Hospital.

LHO were commissioned to design and document the Hydraulic and Fire services for the complex including the diversion of a major public utility stormwater drain. The installation comprises the complete range of specialist hydraulic and fire protection services and incorporates the latest techniques for water and energy management. A Fire Performance Solution was prepared for the building by CSIRO, requiring fast response sprinkler heads throughout. The installation included laboratories, radioactive waste, specialist water and waste services.

Elsewhere on the site, LHO were responsible for the upgrade of the existing DeLacy Building with a new sprinkler system and EWIS and new underground carpark sprinkler system. All works have been performed on site while the hospital has been fully operational.

Project Director: David Turnbull

Fire Services Design: Simon Matthews

 
 

A N S T O - LUCAS HEIGHTS

Replacement Research Reactor Project

This has been a sensitive and challenging project to be involved with. LHO was engaged by the plumbing contractor Grateholt P/L to design and co-ordinate the plumbing services on their behalf. This involved working closely with the other members of the project team which included consultants and contractors. The range of services included general plumbing and extensive laboratory systems.

Project Director: Michael Armitage

Hydraulic Services Design: Michael Armitage  

 

 
 

NSW POLICE HEADQUARTERS

A Multiplex project designed by Batessmart Architects specifically being built as the new administration centre for the NSW Police. The finished building will consist of two towers joined by a central core containing a total of some thirty floor plans. To achieve a SEDA rating of 4.5 throughout the working building careful thought was put into the hydraulics design and specification of plant to ensure compliance. In an effort to manage water consumption, roof rainwater will be collected, stored and used for WC flushing and landscape irrigation. The size of the building required a major utilities infrastructure upgrade to the immediate local area. The LHO Group designed the amplification and deviation of some 600m of the Sydney Water sewer system. 

Fire protection incorporates a totally sprinklered building with a gas suppression system and VESDA detection system for the Data Centre, EWIS throughout and zone smoke detection as required by the BCA.

Project Director: Don Oxley

Hydraulic Services Design: Dale Lovett

Infrastructure: Jim Cook

Fire Services Design: Simon Matthews

 

 

OLYMPIC CAULDRON

The LHO Group were commissioned to design the engineering works for the Water Display for the opening ceremony of the Sydney 2000 Olympic Games.  The project involved the delivery of 380 litres/second to a waterfall synchronised with the opening ceremony program. Following the success of the opening ceremony we were requested to design the Olympic Cauldron Relocation water display in the Bicentennial Park outside the Main Stadium in conjunction with Alexander Tzannes Architects, The Olympic Coordinating Authority and Theiss Contractors.  The project involved the delivery of 120 litres/second of display water to 120 fan jets located within the cauldron via the stainless steel leg supports. The display water is triple filtered, treated with bromine and UV sterilized before delivery to the cauldron display.  The supply of 36 GJ/Hr of gas at 100 kPa for the flame display presented many challenges as the plant room below was classified as a confined space to comply with safety requirements.

Project Director: Don Ledingham
Hydraulic Services Design: Don Ledingham
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AUGUST - 2002   

THE LHO GROUP  LEVEL 1  494 PACIFIC HIGHWAY  ST LEONARDS   NSW   2065   PO BOX  114  ST LEONARDS    NSW   1590

P: (02) 9439 1422      F: (02) 9438 1242      E: sydney@lhogroup.com.au         www.lhogroup.com.au      AS/NZS ISO 9001

LEDINGHAM HENSBY OXLEY & PARTNERS PTY LTD

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