DHL in Thailand applied THERMAL-XR® graphene coating to a split-type air conditioner at its logistics facility and measured a 16.50% reduction in energy use, translating to an estimated saving of 17,380 THB per year and a return on investment of under 2 years.
Case at a glance
| Customer | DHL |
|---|---|
| Location | Thailand |
| Site type | Logistics warehouse |
| Equipment | Split-Type Air Conditioner |
| Brand | Midea |
| Capacity | 48,000 BTU |
| Equipment age | 11 years |
| Energy savings | 16.50% |
| Annual cost saving | 17,380 THB/year |
| Return on investment | < 2 years |
Background
Air conditioning is a major electricity cost at logistics facilities, where offices, control rooms and temperature-sensitive areas need cooling throughout long operating hours. Over time, condenser coils lose heat transfer efficiency, which forces compressors to work harder and increases energy consumption. At DHL’s facility in Thailand, the split-type air conditioner is a Midea unit with a capacity of 48,000 BTU, and it has been in service for 11 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 condenser coils of the split-type air conditioner, with no change to the equipment itself.
Results
Energy use was compared before and after coating:
- Electricity usage: 65 kWh/day before coating vs 54 kWh/day after
- Electricity cost: 8,778 THB/month before coating vs 7,329 THB/month after
- Carbon emissions: 11 tons CO2/year before coating vs 9 tons CO2/year after
- Annual saving: 17,380 THB per year
- ROI: < 2 years
These results equal an energy saving of 16.50%.
Takeaway
The DHL case shows that coating existing split-type air conditioners can lower energy consumption and electricity costs at logistics sites without replacing equipment, even on units that have been running for 11 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.