Recovering energy saves over € 20,000 and pays back within 11 months.
Large energy spend
A Dublin City Centre leisure centre with a large monthly energy spend, saved € 21,505 on their annual energy bill by repairing the mechanical ventilation heat recovery (MVHR) system in their air handling unit (AHU).
The cost of repairing the MVHR system paid for itself within a period of 11 months, making it an economically attractive project for both facility and finance managers.
Thermodial then set up an early warning system, via the building energy management system (BEMS), to ensure any future system errors were flagged, communicated and fixed before they became costly.
Heat recovery ventilation
Mechanical heat recovery ventilation (MHRV) or heat recovery ventilation (HRV) reduces energy spend by thermal energy transfer in a specialised mechanical unit.
HRV works by extracting energy from stale air inside a room – which ordinarily would be exhausted out of the building – and transferring that energy to condition the incoming fresh air. Fully exhausting warm stale air from a room – which energy has already been used to condition – is wasteful. Re-using that energy to condition the incoming fresh air is energy, environmental and cost efficient.
The method of heat recovery ventilation installation can differ. Methods of recovering heat include, the use of rotary heat exchangers or thermal wheels, fixed plate heat exchangers or run-around coils. These differences can have a great impact on the health and welfare of building occupants.
Energy management and a Building energy management system (BEMS)
BEMS monitors and controls a building’s services, such as, heating, ventilation and air conditioning (HVAC), water, electrical and lighting. A BEMS can instantly report and alarm in circumstances where systems fail to operate or function at desired levels, such as, operating outside of acceptable temperatures, pressures, ratios or percentage parameters.
Current parameters can instantly be communicated to facility managers, service engineers or any other appropriate personnel, via touch screen monitor, email or SMS text. Setting up remote access to the BEMS for a service company, means that initial investigations can then take place online and then repairs can be performed inside of service level agreements (SLAs), if required.
Thermodial’s approach
At Thermodial we believe in the efficient operation of systems through planned preventative maintenance (PPM) and the investigation of opportunities to achieve energy savings – eliminating unnecessary waste. This is the most risk averse and energy efficient approach, particularly if you are a large energy user.
Our energy monitoring bureau monitors customers’ HVAC and water systems and provides energy expertise in identifying saving initiatives.
Explore our full energy management and BEMS and controls PPM services.
Note – above image is for illustrative purposes and not the exact replica of energy consumption.