Search Results - subject:"siloxanes"

Performance of Siloxane Mixtures in a High-Temperature Organic Rankine Cycle Considering the Heat Transfer Characteristics during Evaporation

Weith, Theresa; Heberle, Florian; Preißinger, Markus; … - In: Energies 7 (2014) 9, pp. 5548-5565

and combined heat and power generation. The siloxanes hexamethyldisiloxane (MM) and octamethyltrisiloxane (MDM) are chosen … heat transfer coefficients of these siloxanes as well as their mixtures are conducted and Kandlikar’s correlation is chosen …

Persistent link: https://www.econbiz.de/10011031171

Organic silicon compounds in biogases produced from grass silage, grass and maize in laboratory batch assays

Rasi, S.; Seppälä, M.; Rintala, J. - In: Energy 52 (2013) C, pp. 137-142

In the present study the occurrence of volatile organic silicon compounds in biogas produced from grass silage, grass and maize in laboratory batch assays was analyzed and methane potentials were determined. Inoculum from a mesophilic farm digester was used, and its effects were subtracted....

Persistent link: https://www.econbiz.de/10011053588

Thermodynamic analysis of high-temperature regenerative organic Rankine cycles using siloxanes as working fluids

Fernández, F.J.; Prieto, M.M.; Suárez, I. - In: Energy 36 (2011) 8, pp. 5239-5249

A recent novel adjustment of the Span–Wagner equation of state for siloxanes, used as working fluids in high … cyclic siloxanes are assayed in saturated, superheated and supercritical cycles. The cycle includes an internal heat … thermal level. Simple linear (MM, MDM) siloxanes in saturated regenerative schemes show good efficiencies and ensure thermal …

Persistent link: https://www.econbiz.de/10011053941

Determination of organic silicon compounds in biogas from wastewater treatments plants, landfills, and co-digestion plants

Rasi, Saija; Lehtinen, Jenni; Rintala, Jukka - In: Renewable Energy 35 (2010) 12, pp. 2666-2673

siloxanes are reported to shorten the life time of engines when biogas is used for energy production. In total, 48 samples were …

Persistent link: https://www.econbiz.de/10011045134