Whilst generating compressed air in the most efficient cost effective manner it is also worth considering ways to recuperate the wasted energy consumed from the compressed air process.
This can be achieved from either a simple air curtain utilising the waste heat to form space heating of an adjacent building, or recovering the heat from the oil in the form of hot water.
Up to 94% of the energy can be recovered with temperatures of up to 90 Deg C.
ER, reinventing warm water
The way to achieve the highest energy savings is to recover wasted energy through radiation losses by the use of heat recovery systems.
As much as 94% of the electrical energy used by an industrial air compressor is converted into heat and loss through radiation in the compression process. The remaining 6% is converted into compressed air heat losses. Therefore, a properly designed heat recovery unit can recover anywhere from 50-94% of this available thermal energy
(as low-grade heat) to heat air or water (up to 90°C or 140°F).
Pre-heated water can be used in the application process to reduce the use of traditional energy sources reducing the amount of CO2 emissions.
| Features | Benefits |
| Energy savings | Reduction of external fuel inputs for the process & associated ancillaries (fans, pumps..) |
| One size fits all | Standardization. |
| Stand-alone unit | Simplified maintenance operations on compressor. |
| Control of ancillary equipment | Optimize energy consumption in the complete compressor room. |
| Heat recovery | Reduced impact on the environment. |
| Minimum footprint | Easy installation because of reduced size. |
| Stainless Steel or copper brazed heat exchanger | For optimal selection depending on your application. |
| Optional | |
| Energy counter | Shows exact energy saving from your ER with the possibility of connecting to your back office. |
| Extended connection kits | Kit containing all required parts to cover the maximum connection distance of 6m. |
| Type | GA, GA+ & (nominal |
GA VSD power) |
Recoverable | Energy | Savings Heating | Potential oil | Reduce C02 |
| kW | hp | kW | hp | (L) | (Gal) | (ton) | |
| ER-S1 | 11 | 15 | 9 | 12 | 4.224 | 1.116 | 9.292 |
| ER-S1 | 15 | 20 | 12 | 16 | 5.760 | 1.522 | 12.672 |
| ER-S1 | 18 | 25 | 14 | 19 | 6.720 | 1.775 | 14.784 |
| ER-S1 | 22 | 30 | 18 | 24 | 8.640 | 2.283 | 19.008 |
| ER-S1 | 30 | 40 | 24 | 32 | 11.520 | 3.044 | 25.344 |
| ER-S2 | 37 | 50 | 30 | 40 | 14.400 | 3.804 | 31.680 |
| ER-S2 | 45 | 60 | 36 | 48 | 17.280 | 4.565 | 38.016 |
| ER-S2 | 55 | 75 | 44 | 59 | 21.120 | 5.580 | 46.464 |
| ER-S3 | 75 | 100 | 60 | 80 | 28.800 | 7.609 | 63.360 |
| ER-S3 | 90 | 120 | 72 | 97 | 34.560 | 9.131 | 76.032 |
| ER-S4 | 110 | 150 | 88 | 118 | 42.240 | 11.160 | 92.928 |
| ER-S4 | 180 | 241 | 144 | 193 | 69.120 | 18.262 | 152.064 |
| ER-S5 | 200 | 268 | 160 | 215 | 76.800 | 20.291 | 168.960 |
| ER-S5 | 315 | 422 | 262 | 338 | 120.960 | 31.958 | 266.122 |
| Type | Low temperature rise (△T = 10°C, 50°F) high water flow |
High temperature rise (△T = 60°C, 140°F) low water flow |
||
| l/min | GPM | l/min | GPM | |
| ER-S1 | 12 | 3.2 | 1.9 | 0.5 |
| ER-S1 | 15 | 4.0 | 2.4 | 0.6 |
| ER-S1 | 18 | 4.8 | 2.9 | 0.8 |
| ER-S1 | 22 | 5.8 | 3.6 | 1.0 |
| ER-S1 | 32 | 8.5 | 5.2 | 1.4 |
| ER-S2 | 39 | 10.3 | 6.4 | 1.7 |
| ER-S2 | 48 | 12.7 | 7.9 | 2.1 |
| ER-S2 | 59 | 15.6 | 9.8 | 2.6 |
| ER-S3 | 80 | 21.1 | 13.3 | 3.6 |
| ER-S3 | 98 | 25.9 | 16.2 | 4.3 |
| ER-S4 | 118 | 31.2 | 19.6 | 5.2 |
| ER-S4 | 193 | 50.9 | 32.2 | 8.5 |
| ER-S5 | 216 | 56.7 | 35.8 | 9.5 |
| ER-S5 | 337 | 98.0 | 56.2 | 14.9 |
| Type Part numbers |
Stailnless Steel Heat Exchanger |
Copper Brazed Heat Exchanger |
Canopy Dimensions (LxWxH mm) |
| ER-S1 | 2230 0080 91 | 2230 0085 91 | 477x450x807 |
| ER-S2 | 2230 0080 92 | 2230 0085 92 | 477x450x807 |
| ER-S3 | 2230 0080 93 | 2230 0085 93 | 477x450x807 |
| ER-S4 | 2230 0080 94 | 2230 0085 94 | 877x450x807 |
| ER-S5 | 2230 0080 96 | 2230 0085 96 | 877x450x807 |
