We propose innovative or classical process loop design, mostly for power generation
Renewable energy is still missing the cheap, dispatchable, on-demand clean power generation.
Biomass is good candidate, only missing cycles improving performances while reducing capital costs.
Municipal Solid Wastes production is ever increasing and destruction -while highly wishable with respect for environment preservation - is still an headache everywhere on the planet.
District small size incinerators (in the range of 1 to 4MW), equipped with the latest flue gas filtration technologies can be the solution. Power generation is paying for waste collection and equipment O&M.
ORC high temperature loops or small-scale saturated steam cycles can help providing .
Solar thermal fields are expensive to build, therfore thermal energy that can be extracted is expensive. Thus, super high efficiency cycles are required but, in the same time, temperatures on the thermal oil loops are not so high. Classical steam turbines are missing enough superheating to work without deteriorating their last stages.
Solar energy -even if stored- requires cycles able to be operated at part load at constant efficiency, which is a big problem for steam turbines.
Saturated steam expander / ORC is a natural solution for this context. Qxpand expander can be configured with variable geometry nozzles to maintain constant pressure ratio across a wide part load range.
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