SMARTech energy designs energy efficient cooling system for leisure centre – saving upto 90%

The Client

Olympiad Leisure Centre in Chippenham is one of the largest leisure and activity centres in Wiltshire, offering first class health, sport and fitness facilities.

Sport and leisure centres inherently use more energy than most other operations and as part of a plan to reduce costs and become more environmentally friendly, SMARTech energy were asked to design an energy and cost-efficient cooling system for the centre’s gym.

How We Helped

Gym members expect a comfortable space to exercise in. As such it is critical it is essential that the air cooling system provides the right climate throughout the year.

SMARTech Energy have considerable experience of designing and installing energy efficient cooling solutions, using evaporative cooling technology, in a range of settings including; leisure, retail, manufacturing and offices.

The bespoke system designed by SMARTech energy was a hybrid system, integrating evaporative cooling and air-conditioning technologies into a single, PLC controlled system. This solution enables the internal climate to be optimised throughout the year, regardless of the external temperature. Working with Leisure Centre management, we were able to deliver the install programme to ensure that the gym remained operational throughout. When compared to traditional air-conditioning, our hybrid solution gives up to 90% energy saving when in standard evaporative cooling mode and c.50% when in full air-conditioning mode.Eco cooling, Breezeair

Evaporative Cooling Benefits

90% Energy Reduction

Evaporative cooling is a natural, cost effective and environmentally friendly alternative to traditional air conditioning. Benefits include:

  • No refrigerants, completely natural cooling process
  • Low running and maintenance costs
  • Low carbon and energy use
  • Exploits the maximum amount of free cooling available

How Evaporative Cooling Systems Work: General Principals

  • Low energy variable speed EC (Electronically Commutated) fans are specified to supply and extract air.
  • Fresh air is brought into the system through EU4 pre-filters and Munters CELdek® pads.
  • Evaporative cooling operates during warm periods to cool air.
  • During winter periods, warm exhaust air is mixed with cold fresh air. This mixing process is described as attemperation.
  • Patented control systems measure and control air flow rate, supply and exhaust temperature.
  • Control systems automatically match air flow to the amount of cooling required.

SMARTech energy’s 5 stage hybrid cooling system with optional heating

NATURAL COOLING. This is achieved by using the evaporative cooling system in ventilation mode only, therefore with no adiabatic cooling (water wetting the pads) which allows the zone to be controlled for c.50% of the year to maximise energy efficiency.

ADIABATIC COOLING.  This is when the evaporative cooling system is operating with the wetting of the pads to control the air conditions to the desired conditions.

Up to 50% AIR CONDITIONING. The evaporator has been designed as a double pass evaporator which allows the zone to only use partial AC support cooling. At this stage the evaporative coolers PLC will close the supply and extract dampers and open the recirculation damper, thus allowing the zone to be controlled in a similar strategy to the use of air conditioning in a close zone.

Up to 100% AIR CONDITIONING. This allows both passes of the evaporator to be used. We have specified the system with a cooling capacity of 33kW have a cooling capacity to enable the zone to be controlled, for example, at 17°c on a day with an outside temperature of 32°c.

RECIRCULATION. This stage enables the modulating dampers, which are controlled via the PLC, to be opened at varying degrees as required and the air from the zone is recirculated with fresh air introduced to maintain air quality as required. This method reuses the heat in the zone and the heat being generated in the zone to maintain the required room temperature where possible.

HEATING (Optional). If required, the system can be designed to provide a heating solution for when the room drops below a set temperature point.

Can we help you?

Our case study on SMARTech energy’s work with Olympiad Leisure Centre tells the story of how we helped reduce their energy consumption in more depth. If you would like to reduce energy waste, boost profits and cut carbon emissions then why not contact us to find out more about our SMART Energy Management Service.  As a Carbon Trust Accredited Supplier, we can also help most business access a 15% capital grant (up to a limit of £10,000) towards the cost of energy saving projects. Please contact us through our website or call us on 01225 635660.