Gunnebo is a global provider of security and access control solutions and services with sales companies in 31 countries in Europe, the Middle East, Africa, Asia, the Americas and Australia.…read more
Geothermal energy to power Kalgoorlie’s Goldfields Oasis Recreation Centre
A remarkable innovation will see geothermal energy harnessed on a commercial scale to heat the main swimming pool at the Goldfields Oasis Recreation Centre in Kalgoorlie.
The geothermal water heating system is almost complete and will soon be heating the Oasis' Olympic swimming pool.
Kalgoorlie-Boulder City Council (CKB) Director of Social Services Tony Chisholm says geothermal heating is the final part of a clean energy project that also uses solar thermal heating and photovoltaics.
Chisholm explains "CKB council recognised the need to utilise clean energy to meet the rising expense of heating the centre and the pool, especially since there was funding available for this sort of project.
"We anticipate a four year payback on the geothermal project.
"The water temperature we are getting from underground is warmer than we expected.
"Originally we had only anticipated heating the water to 18 degrees Centigrade, but we're seeing temperatures of 23 degrees."
Project consultant Greg Benvenuti expects this temperature to fall, adding "the temperature of undisturbed ground in Kalgoorlie is 23 degrees, although over time the temperature will fall (and) we will be able to equilibrate the ground at around 15 degrees."
The geothermal heating system comprises two sections; a shallow network of coiled thin tubing buried horizontally in a trench 1.5m deep and a deep series of vertical tubes.
Chisholm adds "the CKB originally looked at using a 30 metre deep geothermal system but decided against it as it required the use of refrigerants. The council was concerned about the risk of leakage."
The chosen deep system, however, doesn't require refrigerants and is made up of 50 x 127 mm wide boreholes drilled to a depth of 100 metres underground. An elongated 'U' made of high quality plastic pipes was then fed into each of the holes. Then a conductive grout pumped around the pipes.
The connected pipes feed water from the deep system to the shallow system. Both the sections have been filled with water and sealed.
The warmed water is circulated and pumped to the pool building. Using heat exchangers, (now being installed) heat is transferred to the heat pumps, commonly used in normal heating-cooling systems. They upgrade the heat and warm the swimming-pool water.
Chisholm concludes "once all three systems are running there will be sufficient energy to be used for air-cooling the rest of the complex too. The system has been designed with this in mind."
The Community energy Efficiency Program and Low Emissions Energy Fund provided partial funding, with CKB making up the balance.
The system is the first closed-loop system of its kind to heat a swimming pool in Western Australia. Others are open-loop systems (drawing up existing groundwater, usually from an aquifer, taking the heat and then returning water into the ground).
By contrast, the Kalgoorlie system is closed-loopit only circulates the water in the pipes not affecting local groundwater.
The Goldfields Oasis was also recently recognised with a Gold Award at the Australian Health & Fitness Industry Quality Awards.
Image: Rooftop mounted solar panels at the Goldfields Oasis.
13th September 2012 - WA COUNCILS REDUCE AQUATIC CENTRE RUNNING COSTS
4th April 2012 - GECKO KIDS FITNESS PROGRAM LAUNCHES AT GOLDFIELDS OASIS
29th Ausgust 2011 - LIFEGUARDS ARE NOT BABYSITTERS!: WATCH AROUND WATER LAUNCHES NEW WEBSITE
31st October 2008 - COUNCIL COMMITMENT TO KALGOORLIE FLOWRIDER
Asking a small favour
We hope that you value the news that we publish so while you're here can we ask for your support?
The news we publish at www.ausleisure.com.au is independent, credible (we hope) and free for you to access, with no pay walls and no annoying pop-up ads.
However, as an independent publisher, can we ask for you to support us by subscribing to the printed Australasian Leisure Management magazine - if you don't already do so.
Published bi-monthly since 1997, the printed Australasian Leisure Management differs from this website in that it publishes longer, in-depth and analytical features covering aquatics, attractions, entertainment, events, fitness, parks, recreation, sport, tourism and venues management.
Subscriptions cost just $90 a year.
Click here to subscribe.
The Complete Guide to Leisure Industry Products & Services.
Links Modular Solutions are a leading provider of high-quality, innovative software solutions for leisure facilities. Our software suite includes modules such as POS, Classes, Members, Facility…read more
Hydrocare Pool Services Pty Ltd offer 25 years of experience in aquatic industry features, products and water treatment. Hydrocare Pools has undertaken water treatment for aquatic centres and…read more
Aerobic Microphones Australia provides audio products for the fitness industry. Products include the sweat resistant Cyclemic and Aeromic headworn microphones and pouchbelts that are made in…read more
INTRODUCTION Abel Sports is Australia’s leading manufacturer and suppliers of Goal Posts, sports ground safety netting systems and coaches boxes for Stadiums ,Sports Clubs, Councils and…read more
Ausfit began in 1992, providing software services to the health and fitness sector including ClubWise, a fully hosted web-based product which combines state of the art club management software,…read more
Summit Fitness Equipment is now part of NovoFit - see www.ausleisure.com.au/suppliers/novofit/read more
Anti Wave International is the original suppliers of top performance swim, aquatic sports, leisure and pool programming equipment. Founded in 1971, Anti Wave International is proud of its…read more
get listed with our suppliers directory
Get your business noticed in our targeted directory. Viewed by 10,000 industry professionals per week!