Theoretical Investigation of a Power Cycle Using Ammonia-Water as Working Fluid
A novel ammonia-water power cycle is proposed, which uses low-temperature heat sources such as oceanic-thermal, biomass as well as industrial waste heats. An ejector is introduced between the turbine and the absorber. The main emphasis is placed on the energy and exergy analysis to guide the thermodynamic improvement for the cycle; parametric analysis is conducted to investigate the effects of thermodynamic parameters on the cycle performances. The result shows that the thermal efficiency can reach to 5.31% and the exergitic efficiency varies between 13.3% and 24.4% under the given condition. In addition, the generator pressure, the deflation ratio variation and the turbine outlet depressurization made by ejector have significant effects on the performance of the power cycle.
Duanling Li, Dawei Zheng and Jun Shi
H. Yuan et al., "Theoretical Investigation of a Power Cycle Using Ammonia-Water as Working Fluid", Advanced Materials Research, Vols. 875-877, pp. 1837-1841, 2014