District Heating/Closed Loop Systems

Hevasure – effective building management

The energy used in heating, ventilation and air conditioning (HVAC) is responsible for a significant proportion of total building energy consumption. Improving the way your HVAC system works is a key step in improving sustainability and reliability. It represents a more cost-effective and environmentally-responsible approach to building management.

If you have a closed-circuit/closed-loop water system, you are probably already aware of the challenges around corrosion control. Rock Compliance is proud to be a certified partner of HVAC corrosion monitoring expert, Hevasure. Using Hevasure’s intelligent corrosion monitoring technology, we work with you to:

• Protect your assets
• Meet your energy efficiency targets
• Reduce insurance premiums
• Cut energy bills
• Demonstrate compliance with standards BG29/2021 and BG50/2021

District heating and closed water systems

Inadequate maintenance of district heating and closed-circuit systems can result in corrosion, scale, and a build-up of sludge and deposits. This affects the water quality and chemistry.

The foulants may also coat the surfaces of the parts, increasing wear and chance of failure as well as reducing efficiency by limiting the system’s ability to transfer heat – for example, 1mm of foulant on a plate heat exchanger can increase fuel usage by up to 8%. This is not only very wasteful and expensive, but also damaging for the environment.

Mechanically, long-term damage, or even catastrophic equipment failure such as stress cracking of heat exchangers, can occur.