Lerdsin Hospital, part of the Department of Medical Services under Thailand’s Ministry of Public Health (MOPH), applied THERMAL-XR® graphene coating to two split-type air conditioners and measured a 17.45% reduction in energy use, translating to an estimated saving of 9,260 THB per year and a return on investment of under 2 years.
Case at a glance
| Customer | Lerdsin Hospital, Department of Medical Services, Ministry of Public Health (MOPH) |
|---|---|
| Location | Thailand |
| Site type | Hospital |
| Equipment | Split-Type Air Conditioner |
| Brand | Uni-Air |
| Capacity | 24,000 BTU x 2 |
| Model | WRV25FA / ARV25FA |
| Equipment age | 5 years |
| Energy savings | 17.45% |
| Annual cost saving | 9,260 THB/year |
| Return on investment | < 2 years |
Background
Air conditioning is one of the largest electricity users in a hospital, where cooling runs around the clock to keep patients and staff comfortable. Over time, condenser coils lose heat transfer efficiency, which forces compressors to work harder and increases energy consumption. At Lerdsin Hospital, two Uni-Air split-type air conditioners, each with a capacity of 24,000 BTU, have been in service for 5 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 both split-type air conditioners, with no change to the equipment itself.
Results
Energy use was compared before and after coating:
- Electricity usage: 32.31 kWh/day before coating vs 26.67 kWh/day after
- Electricity cost: 4,422 THB/month before coating vs 3,651 THB/month after
- Carbon emissions: 5 tons CO2/year before coating vs 4 tons CO2/year after
- Annual saving: 9,260 THB per year
- ROI: < 2 years
These results equal an energy saving of 17.45%.
Takeaway
The Lerdsin Hospital case shows that coating existing split-type air conditioners can lower energy consumption and electricity costs in healthcare facilities without replacing equipment, even on relatively young units that have been running for 5 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.