Abstract
The merits of organic fluid space power cycles are surveyed and compared with those of alternate options. Selection of an optimum working fluid is recognized as an important tool to improve system performance. The main characteristics of organic power cycles are shown to be predictable with a good level of accuracy through a general method, which requests the knowledge of a limited information about the fluid properties: specific heat in the ideal gas state, a portion of the saturation curve, and the critical parameters. On the ground of such a theory the adoption of fluids with a relatively complex molecular structure and condensation at the lowest practically admissible reduced temperature allow a better efficiency than achievable with the use of toluene, which is taken as a reference fluid. The influence of turbine efficiency actually achievable in real machines on cycle performance is then addressed; performance diagrams of optimized turbines in the power range of interest for space cycles are calculated and presented. It is shown that only the combined optimization of thermal and fluid dynamic variables leads to the definition of an optimum working fluid and power cycle. A class of fluids is examined, that of the methyl-substituted benzenes, offering a wide variation of thermal properties. A thorough optimization that considers a wide range of power outputs, one-and two-stage turbines, saturated and superheated cycles is performed. For a power output of about 30 kW trimethylbenzene is found to offer the best overall efficiency, a moderate maximum pressure, reasonable turbine dimensions, and rotating speed. A thermodynamic conversion efficiency in excess of 30 percent seems achievable at a maximum temperature of 360°C for a condensation temperature of 60°C. Such energy performance suggests that ORC systems could represent a viable multifuel prime mover option also for terrestrial power generation. Thermal stability of the proposed fluid is experimentally investigated and found to be similar to that of toluene, but its definite evaluation is shown to require further testing.
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References
Ambrose, D., Broderick, B.E., and Townsend, R., 1967, “The Vapour Pressures Above the Normal Boiling Point and the Critical Pressures of Some Aromatic Hydrocarbons,” J. of the Chemical Society (A), 633–641.
Angelino, G., Gaia, M., and Macchi, E., 1984, “A Review of Italian Activity in the Field of Organic Rankine Cycle,” Proc. of International VDI Seminar on “ORC-HPTechnology Working Fluids Problems,” Zurich, VBD-Berichte 539, 465–482.
Angelino, G., and Invernizzi, C, 1988, “General Method for the Thermodynamic Evaluation of Heat Pump Working Fluids,” Int. J. of Refrigeration, 11, Jan., 17–25.
Balje, O.E., 1981Turbo-machines. A Guide to Design Selection and TheoryJohn Wiley & Sons.
Basiulis, A., and Prager, R.C., 1976, “Compatibility and Reliability of Heat-Pipe Materials,” Progress in Astronautical and Aeronautical, 49, 515–529.
Blake, E.S., Hammann, W.C., Edwards, J.W., Reichard, T.E., and Ort, M.R., 1961, “Thermal Stability as a Function of Chemical Structure,” J. of Chemical and Engineering Data, 6, 1, 87–98.
Boyle, R.V., Coombs, M.G., and Kudija, C.T., 1988, “Solar Dynamic Power Option for the Space Station,” Proc. of the 23d IECEC, paper 889163, Denver.
Casci, C., and Angelino, G., 1969, “The Dependence of Power Cycles’ Performance on Their Location Relative to the Andrews Curve,” ASME Paper 69-GT-65, Cleveland.
Chandoir, D.W., Niggemann, R.E., and Bland, T.J., 1985, “A Solar Dynamic ORC Power System for Space Station Application,” Proc. of the 20th IECEC, paper 859085, Miami Beach.
Cole, R.L., Demirgian, J.C., and Allen, J.W., 1987, “Predicting Toluene Degradation in Organic Rankine-Cycle Engines,” Proc. of the 22d IECEC, paper 879075, Philadelphia.
Davoli, M., 1988, High Temperature Organic Fluid Cycles for Space Application“ (in Italian), graduation thesis, Politecnico di Milano.
Downing, R.S., and Parekh, M.B., 1985, “Thermal Energy Storage for an Organic Rankine Cycle Solar Dynamic Powered Space Station,” Proc. of the 20th IECEC, paper 859061, Miami Beach.
Fabuss, M.A., Borsanyi, A.S., Fabuss, B.M., and Smith, J.O., 1963, “Thermal Stability Studies of Pure Hydrocarbons in a High Pressure Isoteniscope,” J. of Chemical and Engineering Data, 8, 1, 64–69.
Faget, N.M., Fraser, W.M., and Simon, W.E., 1985, “Thermal Energy Storage for a Space Solar Dynamic Power System,” Proc. of the 20th IECEC, paper 859057, Miami Beach.
Forziati, A.F., Norris, W.R., and Rossini, F.D., “Chapter,” T. Boublik, V. Fried, and E. Hala (Eds.), “The Vapour Pressures of Pure Substances, Elsevier, 439.
Havens, V.N., Ragaller, D.R., Sibert, L., and Miller, D., 1987, “Toluene Stability Space Station Rankine Power System,” Proc. of the 22d IECEC, paper 879161, Philadelphia.
Heidenreich, G., Bland, T., and Niggemann, R., 1985, “Receiver for Solar Dynamic Organic Rankine Cycle Powered Space Station,” Proc. of the 20th IECEC, paper 859220, Miami Beach.
Invernizzi, C., 1984, “Calculation of Thermodynamic Properties for Some Halo- Substitute Aromatic Hydrocarbons,” (in Italian), La Termotecnica, April, 47–54.
Invernizzi, C., 1990, “Thermal Stability Investigation of Organic Working Fluids: An Experimental Apparatus and Some Calibration Results” (in Italian), La Termotecnica, April 69–76.
Jin Song, S., and Louis, J.F., 1988, “Liquid Lithium Thermal Energy Storage for Solar Dynamic Power Systems,” Proc. of the 23d IECEC, paper 889510, Denver.
Johns, I. B., McElhill, E.A., and Smith, J.O., 1962a, “Thermal Stability of Organic Compounds,” Industrial and Engineering Chemistry Product Research and Development,1, 1, March, 2–6.
Johns, I.B., McElhill, E.A., and Smith, J.O., 1962b, “Thermal Stability of Some Organic Compounds,” J. of Chemical and Engineering Data, 7, 2, 277–281.
Kurzrock, J.W., 1989, “Experimental Investigation of Supersonic Turbine Performance,” ASME Paper 89-GT-238, Toronto.
Lozza, G., Macchi, E., and Perdichizzi, A., 1982, “On the Influence of the Number of Stages on the Efficiency of Axial-Flow Turbines,” ASME Paper 82-GT-43, London.
Macchi, E., and Lozza, G., 1986, “Comparison of Partial vs Full Admission for Small Gas Turbines at Low Specific Speeds,”Turbo & Jet-Engines, 3, 4, 307–317.
Macchi, E., and Perdichizzi, A., 1981, “Efficiency Prediction for Axial-Flow Turbines Operating with Nonconventional Fluids,” J. of Engineering for Power, 103, Oct., 718–724.
Moroni, V., Macchi, E., and Giglioli, G., 1974, “Investigation on Thermal Stability and Corrosion Effects of Dichloro-Difluoro-Methane in View of Its Possible Application as Working Fluid in a Power Plant,” La Termotecnica, 28, 4, 209–221.
Niggemann, R.E., and Sibert, L.A., 1969, “Organic Working Fluid Thermal Stability Investigation,” Report No. SAN-651–101.
Nored, D.L., and Bernatowicz, D.T., 1986, “Electric Power System Design for the U.S. Space Station,” Proc. of the 21st IECEC,paper 869321, San Diego.
Phillips, W.M., and Stearns, J.W., 1985, “Advanced latent Heat of Fusion Thermal Energy Storage for Solar Power Systems,” Proc. of the 20th IECEC,paper 859058, Miami Beach.
Pietsch, A., and Trimble, S., 1985, “Space Station Brayton Power System,” Proc. of the 20th IECEC,paper 859154, Miami Beach.
Portinari, F., 1988, “Generalized Method for the Prediction of Power Cycles’ Performance” (in Italian), graduation thesis, Politecnico di Milano.
Reid, R.C., Prausnitz, J.M., and Poling, B.E., 1988, The Properties of Gases and Liquids, 4th ed., McGraw-Hill.
Scholten, W., 1980, Working Fluids (in German), VDI-Berichte No. 377, 5–11.
Shayeson, M.W., 1969, “Thermal Stability Measurement of Fuels for the U.S. Super-sonic Transport Engine,” ASME paper, 14th Annual International Gas Turbine Conference and Products Show, Cleveland.
Stull, D.R., 1947, “Vapor Pressure of Pure Substances: Organic Compounds,” Industrial and Engineering Chemistry, 39, 4, 517–540.
Teren, F., 1987, “Space Station Electric Power System Requirements and Design,” Proc. of the 22d IECEC,paper 879003, Philadelphia.
Trudell, J.J., Dalsania, V., Baumeister, J.F., and Jefferies, K.S., 1988, “Thermal Distortion Analysis of the Space Station Dynamic Concentrator,” Proc. of the 23d IECEC,paper 889166, Denver.
Valade, F.H., 1988, “Solar Concentrator Advanced Development Program Update,” Proc. of the 23d IECEC, paper 88167, Denver.
Van Landingham, E., 1988, “Space Power Technology to Meet Civil Mission Require-mentsProc. of the 23d Intersociety Energy Conversion Engineering Conference (IECEC), paper 889025, Denver.
West, C.D., 1988, “A Historical Perspective on Stirling Engine Performance,” Proc. of the 23d IECEC,paper 889004, Denver.
Willingham, C.J., Taylor, W.J., Pignocco, J.M., and Rossini, F.D., 1973, “Chapter,” T. Boublik, V. Fried, and E. Hala, (Eds.), The Vapour Pressures of Pure Substances, Elsevier, 324.
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Angelino, G., Invernizzi, C., Macchi, E. (1991). Organic Working Fluid Optimization for Space Power Cycles. In: Angelino, G., De Luca, L., Sirignano, W.A. (eds) Modern Research Topics in Aerospace Propulsion. Springer, New York, NY. https://doi.org/10.1007/978-1-4612-0945-4_16
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DOI: https://doi.org/10.1007/978-1-4612-0945-4_16
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