Kluaynamthai Hospital in Thailand applied THERMAL-XR® graphene coating to its VRV/VRF air conditioner and measured a 11.94% reduction in energy use, translating to an estimated saving of 70,707 THB per year and a return on investment of under 2 years.
Case at a glance
| Customer | Kluaynamthai Hospital |
|---|---|
| Location | Thailand |
| Site type | Hospital |
| Equipment | Vrv/Vrf Air Conditioner |
| Brand | Daikin |
| Capacity | 168,000 BTU x 3 sets |
| Model | RXQ18PAY1S |
| Equipment age | 13 years |
| Energy savings | 11.94% |
| Annual cost saving | 70,707 THB/year |
| Return on investment | < 2 years |
Background
Air conditioning and chiller systems are among the largest electricity users on an industrial site. Over time, condenser coils lose heat transfer efficiency, which forces compressors to work harder and increases energy consumption. At Kluaynamthai Hospital, the VRV/VRF air conditioner is a Daikin unit with a capacity of 168,000 BTU x 3 sets, and it has been in service for 13 years.
The solution: THERMAL-XR®
THERMAL-XR® is a graphene-enhanced coating from Graphene Manufacturing Group (GMG), designed to deliver superior heat transfer and protection for heat exchanger coils. The coating was spray-applied to the coils of the VRV/VRF air conditioner, with no change to the equipment itself.
Results
Energy use was compared before and after coating:
- Electricity usage: 383 kWh/day before coating vs 337 kWh/day after
- Electricity cost: 49,370 THB/month before coating vs 43,475 THB/month after
- Carbon emissions: 62 tons CO2/year before coating vs 55 tons CO2/year after
- Annual saving: 70,707 THB per year
- ROI: < 2 years
These results equal an energy saving of 11.94%.
Takeaway
The Kluaynamthai Hospital case shows that coating existing VRV/VRF air conditioners can lower energy consumption and electricity costs without replacing equipment, even on units that have been running for 13 years.
Want similar results at your site?
Get in touch with GMG to discuss your cooling equipment, or find a THERMAL-XR® applicator near you.
- Email: [email protected]
- Phone: +61 7 3063 6638
- Find an applicator: graphenemg.com/graphene-products/THERMAL-XR®/find-an-applicator
Measured energy savings presented in this case study are not predictors of future installation results. Estimated savings should be considered as estimates. Standard GMG disclaimer applies. All contents copyright © Graphene Manufacturing Group Ltd. All rights reserved.