Facilities Management
Facilities management HVAC and chiller maintenance in the UAE: building services cooling and mechanical maintenance for commercial and mixed-use developments at Gulf ambient temperatures.
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Service
Coil Design
Coil design and manufacturing in the UAE: finned tube coil design for heating, cooling, condensing and evaporating duty, engineered to fit the casing you already have.
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How It Works
Coil design balances heat transfer surface against airside pressure drop and fouling resistance within a fixed physical envelope.
- 1
Duty is established: air flow, entering and leaving conditions, fluid flow and temperatures, and available pressure drop.
- 2
The physical envelope is fixed from the existing casing or unit, including face dimensions, depth and connection positions.
- 3
Tube and fin materials are selected for the air environment, covering copper, aluminium, stainless and coated options.
- 4
Rows, fin spacing and circuiting are calculated to meet duty within the envelope and the allowable airside pressure drop.
Built to
Solve
Engineered against the specific failures that cost operators downtime, contamination or wasted energy.
Asset protection
Coils in coastal and industrial air fail at the fin-to-tube interface long before the tubes themselves are spent. Material and coating selection decides that life, and it is usually decided by price.
Process integrity
A replacement coil that matches physical dimensions but not thermal performance leaves the system short of capacity in a way that is easily blamed on other equipment.
Operational efficiency
Fin spacing chosen for maximum surface area fouls quickly in dusty conditions. The resulting airside pressure drop costs fan energy continuously and cleaning rarely restores the original performance.
Why Dolphin Group for
Coil Design
Design and manufacture together
Coils are calculated and built in the same facility, so the design is not limited to what a catalogue offers.
Reverse engineering capability
A physical sample is enough to reproduce a coil when drawings no longer exist, which is the usual situation with older units.
Regional corrosion experience
We see which coil constructions survive Gulf coastal air and which do not, and that experience drives our material recommendations.
Key
Benefits
What sets coil design from Dolphin Group apart, in specific and measurable terms.
- 1
Built to the existing envelope
Coils made to fit your casing and connections, which avoids modification to units and pipework.
- 2
Performance matched or improved
Replacement coils are rated against the original duty rather than assumed to match because they fit.
- 3
Materials chosen for the air
Coastal and industrial environments get appropriate alloys and coatings rather than a default copper and aluminium build.
- 4
Fin spacing suited to fouling
Spacing selected for the actual air cleanliness, balancing capacity against cleanability.
- 5
Short local lead times
Manufactured in Abu Dhabi, which removes the import lead time that dominates coil replacement.
- 6
Obsolete coils reproduced
Coils for units no longer supported by their maker are reverse-engineered from the existing part.
Technical
Specifications
Design codes, materials and testing scope confirmed for every coil design order.
Coil types
Chilled water · hot water · steam · DX · evaporator · condenser
Tube materials
Copper · stainless steel · cupronickel
Fin materials
Aluminium · copper · coated aluminium for corrosive air
Construction
Mechanically expanded tube-to-fin bond · galvanised or stainless casing
Testing
Pressure tested before dispatch
Where It's
Used
Coil Design in service, sector by sector, application by application.
Data Centers
Data center cooling systems in the UAE: high-availability cooling infrastructure for the world’s fastest-growing digital economy.
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Food & Beverage
Food and beverage heat exchangers in the UAE: hygienic plate heat exchangers and process cooling for dairies, beverage lines and food processors.
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Pharmaceutical & Life Sciences
Pharmaceutical heat exchangers and validated thermal systems for WFI, clean utilities and controlled process heating and cooling.
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Oil & Gas
Heat exchangers for oil and gas in the UAE: thermal equipment engineered for upstream, midstream and refining service, built and serviced in Abu Dhabi.
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Marine & Offshore
Marine heat exchangers built in Abu Dhabi: compact, seawater-tolerant cooling systems for vessels, rigs and offshore platforms.
View SectorFrequently Asked Questions
Yes. Coils are built to your casing dimensions and connection positions so no modification to the unit or pipework is required.
A physical sample or measurements of the existing coil are sufficient. We reverse-engineer the geometry and rate the replacement against the required duty.
Salt-laden air attacks the fin-to-tube interface first. Coated aluminium fins or copper fins with copper tubes extend life substantially, and the right choice depends on distance from the coast and on the presence of industrial pollutants.
Closer fin spacing increases surface area and capacity but also increases airside pressure drop and fouls faster. In dusty conditions, wider spacing with more rows often delivers better sustained performance than tight spacing that blocks.
Often yes, within the same envelope, by adding rows or adjusting circuiting. The limit is usually the airside pressure drop the existing fan can overcome.
Yes, including DX and evaporator coils with distributor and circuit design matched to the refrigerant and duty.
Local manufacture means lead times are measured in weeks rather than the months typical of imported replacements. Exact timing depends on materials and current workshop loading.
Send the coil dimensions, connection positions and duty through the RFQ form, or bring the coil to our Mussafah facility for assessment.
Talk to an Engineer About Coil Design
Send your duty requirements or existing datasheet, and our engineers will confirm the right configuration.