Shanghai Marine Diesel Engine Research Institute |
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Based on ORC (Organic Rankine Cycle) technology, SMDERI developed ORC Power Unit which maximally converts the low grade heat in temperature of 80-250 ℃ to electrical energy without extra fuel consumption.
Working Principle:
◇ The low boiling point organic working fluid absorbs the heat inside the evaporate system, then is evaporated to high temperature & high pressure steam.
◇ The high temperature & high pressure steam flows into the turbine expander and make it work, then the temperature & pressure of the steam is lowered down after work.
◇ The working turbine expander drives the generator to create electricity.
◇ The steam with low temperature & pressure after works on the turbine expander flows into the cooling system to be condensed to fluid.
◇ The working fluid is pressured by the fluid pump and flows into the evaporate system for next cycle.
Applications:
Process Fluid Sourced ORC Power Unit:
This type of ORC power unit utilizes the process fluid from the oil refining & chemical processing system which need to be cooled, such as the column top gas, top circulating backflow, gasoline, diesel, etc. The process fluid makes a direct heat exchange with the organic working fluid, which has the advantage of high efficient power generation.
Organic working fluid: R245fa, alkanes.
Condensing type: Water, evaporate & air cooling.
Rated Power: 500 ~5,000 kW
Specifications for reference
Model | PF-500 | PF-1000 | PF-1500 | PF-2500 | PF-3000 | PF-43000 | PF-5000 | |
Heat source temp(inlet) | ℃ | 130 | 130 | 130 | 160 | 160 | 160 | 160 |
Flow rate | t/h | 80 | 150 | 230 | 240 | 320 | 390 | 450 |
Heat source temp(outlet) | ℃ | 60-70 | 60-70
| 60-70
| 70-80 | 70-80
| 70-80
| 70-80
|
Power capacity | kw | 435 | 870 | 1280 | 2230 | 2650 | 3580 | 4580 |
Power consumption | % | <10 | <10
| <10
| <8 | <8 | <8 | <8 |
Power efficiency | % | 7-12 | 7-12 | 7-12 | 9-15 | 9-15 | 9-15 | 9-15 |
Rated power capacity | kw | 500 | 1000 | 1500 | 2500 | 3000 | 4000 | 5000 |