PTT LNG Company Limited (PTTLNG), a subsidiary of Thailand’s national energy company PTT Public Company Limited, applied THERMAL-XR® graphene coating to two split-type air conditioners at its LNG terminal and measured an 11.07% reduction in energy use, translating to an estimated saving of 76,348 THB per year and a return on investment of under 4 years.
Case at a glance
| Customer | PTT LNG Company Limited (PTTLNG), a PTT Group company |
|---|---|
| Location | Thailand |
| Site type | LNG receiving terminal |
| Equipment | Split-Type Air Conditioner |
| Brand | Carrier |
| Capacity | 600,000 BTU x 2 |
| Model | 38AF060 |
| Equipment age | 4 years |
| Energy savings | 11.07% |
| Annual cost saving | 76,348 THB/year |
| Return on investment | < 4 years |
Background
Air conditioning is a constant electricity cost at an energy terminal, where control rooms and equipment buildings must stay cool around the clock. On a coastal site, salt air and humidity also speed up the fouling and corrosion of condenser coils, reducing heat transfer efficiency and forcing compressors to work harder. At PTT LNG, two Carrier split-type air conditioners, each with a capacity of 600,000 BTU, have been in service for 4 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 both units, with no change to the equipment itself.
Results
Energy use was compared before and after coating:
- Electricity usage: 958 kWh/day before coating vs 852 kWh/day after
- Electricity cost: 57,473 THB/month before coating vs 51,111 THB/month after
- Carbon emissions: 69 tons CO2/year before coating vs 61 tons CO2/year after
- Annual saving: 76,348 THB per year
- ROI: < 4 years
These results equal an energy saving of 11.07%.
Takeaway
The PTT LNG case shows that THERMAL-XR® delivers energy savings even on relatively new equipment in a harsh coastal environment, where the coating also helps protect coils against salt air.
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.