Calorifiers

What it does

Flow Dynamics is a calorifier supplier for the UAE. Calorifiers are large, central hot-water storage vessels used in hotels, hospitals, labour accommodations, and high-rise residential towers, buildings with too much simultaneous demand to be served by point-of-use heaters. They are available as indirect (heated by a coil carrying boiler water, steam, or solar primary fluid), direct (electric immersion elements inside the tank), and mixed-fuel designs. Tanks are built to ASME, PD 5500, or AD 2000 pressure codes depending on specification.

The working principle

In an indirect calorifier, hot primary fluid, water from a boiler, steam, or glycol from a solar collector array, circulates through a submerged coil or an external plate heat exchanger. Heat transfers from the coil into the stored potable water, which stratifies into a hot layer at the top for distribution. A direct calorifier swaps the coil for a bank of electric immersion elements. Multi-source calorifiers combine coil and element so the building can use solar first and back up with electricity automatically. Insulation is sprayed polyurethane foam or removable mineral-wool jackets.

Where it's used

Typical installations across the UAE and wider Gulf include:

• Hotels, resorts, and serviced apartments
• Hospitals and large clinics
• High-rise residential towers
• Labour accommodations and camp catering
• Mosques and community centres
• Solar-integrated central water heating plants

Technical data

Indicative ranges, exact specifications are confirmed per project on selection.

ZENITH · UAE Flow Dynamics supplies equipment from this manufacturer. We do not act as authorised representative unless explicitly stated in a specific project supply agreement.