Thermodynamic sensitivity analysis of a novel trigeneration thermodynamic cycle with two-phase expanders and two-phase compressors

Briola, Stefano; Marco, Paolo Di; Gabbrielli, Roberto

doi:10.1016/j.energy.2017.03.135

Cited by 9 publications

(11 citation statements)

References 24 publications

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“…If this occurred, we would obtain T 4 > T 5 . It is thus more relevant to introduce a specification on P 4 rather than on T 4 . Expander: Briola et al, , in their proposal, suggest the use of two-phase expanders such as those commercialized by Energent Corp., Electratherm of BEP Europe. The reported isentropic efficiencies range between 0.45 and 0.85. Compressor: Briola et al , found that some prototypes of two-phase compressors may be used.…”

Section: Cchp Cycle Descriptionmentioning

confidence: 99%

“…It is thus more relevant to introduce a specification on P 4 rather than on T 4 . Expander: Briola et al, , in their proposal, suggest the use of two-phase expanders such as those commercialized by Energent Corp., Electratherm of BEP Europe. The reported isentropic efficiencies range between 0.45 and 0.85. Compressor: Briola et al , found that some prototypes of two-phase compressors may be used. The reported isentropic efficiencies range between 0.35 and 0.75. Pump: The isentropic efficiency of the pump is the same as that used by Briola et al, , which ranges between 0.7 to 0.9 …”

Section: Cchp Cycle Descriptionmentioning

confidence: 99%

“…The reported isentropic efficiencies range between 0.45 and 0.85. Compressor: Briola et al , found that some prototypes of two-phase compressors may be used. The reported isentropic efficiencies range between 0.35 and 0.75. Pump: The isentropic efficiency of the pump is the same as that used by Briola et al, , which ranges between 0.7 to 0.9 …”

Section: Cchp Cycle Descriptionmentioning

confidence: 99%

“…Pump: The isentropic efficiency of the pump is the same as that used by Briola et al, , which ranges between 0.7 to 0.9 …”

Section: Cchp Cycle Descriptionmentioning

confidence: 99%

“…They considered the wet pure fluids available in the Aspen Plus 9.0 database and defined technical and environmental constraints. They identified four working fluids (chloroform, methyl iodide, phosphorous trichloride, and thiacyclopropane) and performed a sensitivity analysis of the trigeneration cycle they designed . Nevertheless, it is possible to point out that since no (or relaxed) toxicological constraints were included in the selection, the four investigated fluids are highly toxic.…”

Section: Introductionmentioning

confidence: 99%

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Design of Promising Working Fluids for Emergent Combined Cooling, Heating, and Power (CCHP) Systems

Piña‐Martinez

Lasala

Privat

et al. 2021

ACS Sustainable Chem. Eng.

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Combined cooling, heating, and power (CCHP) systems enable the simultaneous supply of electricity, heating, and cooling, thus meeting the major energy needs of humans in a single device. Conventional CCHP systems consist of the combination of a prime mover, heating, and cooling system, each of them operating with a thermodynamically suitable working fluid. Recently, novel CCHP cycles, based on the use of a single working fluid for the whole operation, have been proposed. Since the choice of the working fluid represents a design challenge in the development of such technologies, in this work, a product design approach for the selection of suitable working fluids for emergent CCHP applications is presented. A database search is implemented to screen about 60 000 structures included in the DDB, the Design Institute for Physical Properties, and the NIST TDE databases. The screening considers thermodynamic, process-related, constructional, safety, and environmental constraints. Moreover, the tc-PR equation of state is used to ensure the quality of the calculation of thermophysical properties and the performance assessment of promising working fluids. This study shows that flammable fluids such as vinylacetylene or HFC-152 have a good potential for CCHP applications. In the case of reinforced safety restrictions, HCFO-1233zd(E) seems to be an interesting candidate since it is nonflammable and nontoxic.

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