Amman steam energy storage equipment

Can steam ejector improve waste heat recovery rate?

Zhang et al. studied a thermoelectric system with a 2 × 350 MW thermal power unit coupled with a steam ejector and used the main steam induced discharge steam to provide the heat source to improve the waste heat recovery rate by 8.66 %.

What is the maximum cycle efficiency of a retrofitted steam system?

The retrofitted system has a maximum cycle efficiency of 70–80 % with low and peak modulation rates of 16.5 % and 11.7 %. Extraction of main steam dominates the peaking rate and cycling efficiency compared to extraction of reheat steam.

How efficient is a thermal energy storage system?

The condenser and evaporator corresponding to the storage and heat processes account for 60 % of the total exergy losses in thermal energy storage system. The retrofitted system has a maximum cycle efficiency of 70–80 % with low and peak modulation rates of 16.5 % and 11.7 %.

Can steam energy be stored in molten salt and water?

Similarly, data from power plants in Germany and Austria [14, 15] show that transferring steam energy to molten salt and water can achieve storage capacities of up to 1000 MWH, much higher than the working capacity and operating time of steam energy storage.

What is the working medium of a steam ejector?

The working medium in the steam ejector for this work is 11.9 MPa main steam, which can be suitably depressurized to achieve safe and stable operation of the TPSE system, depending on the actual steam ejector's piloting capacity. Therefore, it is important to study the inlet pressure of the working medium of the steam ejector.