AISIN Chemical (Thailand) Co., Ltd. in Thailand applied THERMAL-XR® graphene coating to its air-cooled chiller and measured a 17.49% reduction in energy use, translating to an estimated saving of 511,040 THB per year and a return on investment of under 1 year.
Case at a glance
| Customer | AISIN Chemical (Thailand) Co., Ltd. |
|---|---|
| Location | Thailand |
| Equipment | Air-Cooled Chiller |
| Brand | Daikin |
| Capacity | 91 tons x 2 sets |
| Model | EWAD320TZ |
| Equipment age | 9 years |
| Energy savings | 17.49% |
| Annual cost saving | 511,040 THB/year |
| Return on investment | < 1 year |
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 AISIN Chemical, the air-cooled chiller is a Daikin unit with a capacity of 91 tons x 2 sets, and it has been in service for 9 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 air-cooled chiller, with no change to the equipment itself.
Results
Energy use was compared before and after coating:
- Electricity usage: 1,906 kWh/day before coating vs 1,573 kWh/day after
- Electricity cost: 243,492 THB/month before coating vs 200,905 THB/month after
- Carbon emissions: 278 tons CO2/year before coating vs 229 tons CO2/year after
- Annual saving: 511,040 THB per year
- ROI: < 1 year
These results equal an energy saving of 17.49%.
Takeaway
The AISIN Chemical case shows that coating existing air-cooled chillers can lower energy consumption and electricity costs without replacing equipment, even on units that have been running for 9 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.