Waste Heat Recovery for power stations and Oil&Gas
Organic Rankine Cycle has proven to be ideally suited to exhaust heat recovery from both engines and gas turbines in low-medium size range.
Organic Rankine Cycle has proven to be ideally suited to exhaust heat recovery from both engines and gas turbines in low-medium size range.
Recovering exhaust heat from gas turbines and internal combustion engines is an easy way to optimise efficiency and performance whilst at the same time reducing the environmental impact of power generation plants widely employed for processing and refining in Oil & Gas sector and in the electricity production field.
When it comes to available technologies to recover waste heat from these sources the market offers two commercial solutions: steam technologies and Organic Rankine Cycle systems. WHR plants employing steam offer advantages in both efficiency and security for plant operation but they lack flexibility and require more maintenance when compared to ORC.
EXAMPLE of performance and payback time from 7 gas engines:
7 GAS ENGINES MOD. ROLLS ROYCE B35:40 V20AG2 | OPERATIONAL LOAD 100% | FUEL: NATURAL GAS
50,400 kg/h | 380 C° | 140 C° | 25.3 MWT | 5.5 MWe | 6 years | 3 years | less than 2 years |
Exhaust gas mass flow rate (each engine) | Exhaust gas temperature | WHR outlet exhaust temperature | Recovered Thermal Power | Generated Power | Payback time (50USD/MWh) | Payback time (100USD/MWh) | Payback time (200USD/MWh) |
EXERGY’s ORC single units power size range between 1 MW to 20 MWe.
WASTE HEAT RECOVERY CYCLE FROM GAS TURBINES OR ENGINE