Results 321 to 330 of about 3,496,599 (369)
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2020
Combining the Joule Thomson and Brayton basic cycles allows designing special cycles for high powers or operating at temperatures lower than 4.5 K. The electrical power that is taken on the net increases so much that it is mandatory to find most efficient solutions.
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Combining the Joule Thomson and Brayton basic cycles allows designing special cycles for high powers or operating at temperatures lower than 4.5 K. The electrical power that is taken on the net increases so much that it is mandatory to find most efficient solutions.
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Components and Thermodynamic Cycles
2019Although many technical components, that are required to run energy conversion processes, have already been discussed previously, the focus in this chapter is on thermal turbo-machines as well as on heat exchangers. However, in this chapter the technical components are treated in steady state operation.
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Thermodynamics of the purine nucleotide cycle
Biophysical Chemistry, 2006Since the standard Gibbs energies of formation are known for all the species in the purine nucleotide cycle at 298.15 K, the functions of pH and ionic strength that yield the standard transformed Gibbs energies of formation of the ten reactants can be calculated.
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Thermodynamics and Kinetics of the Glyoxylate Cycle
Biochemistry, 2006Because the standard Gibbs energies of formation of all the species of reactants in the glyoxylate cycle are known at 298.15 K, it is possible to calculate the apparent equilibrium constants of the five reactions in the cycle in the pH range 5-9 and ionic strengths from 0 to approximately 0.35 M.
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2020
After making clear the difference between isothermal-duty and non-isothermal-duty regimes, the basic cycles, Joule Thomson, Brayton and Claude, are considered and simply calculated. Emphasis is put on cycle optimisation.
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After making clear the difference between isothermal-duty and non-isothermal-duty regimes, the basic cycles, Joule Thomson, Brayton and Claude, are considered and simply calculated. Emphasis is put on cycle optimisation.
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Thermodynamic analysis of the transposed-cycle
37th Joint Propulsion Conference and Exhibit, 2001Due to the increased interest in magnetohydrodynamic (MHD) based propulsion systems operating on the fundamental transposed-cycle (AJAX) the thermodynamic basis for selecting the cycle is reviewed. The fundamental transposedcycle is defined by the turbine-burner-compressor configuration.
David W. Riggins +2 more
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Thermodynamic optimization of the turbofan cycle
Aircraft Engineering and Aerospace Technology, 2006Purpose – To develop and find the effect of combination of four cycle design variables that minimizes the specific fuel consumption (sfc) of a turbofan engine.Design/methodology/approach – After choosing the four variables, namely bypass ratio (B), fan pressure ratio, overall pressure ratio, and turbine inlet temperature (T04), first the sfc was ...
Sharaf F. Al‐Sharif +1 more
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Thermodynamics and Power Cycles
2016This chapter summarizes fundamental principles of thermodynamics with a focus on applications related to analysis of nuclear power plants. Thermodynamics is the study of energy transformations and the relationships among properties of substances.
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Thermodynamic Modeling of Allam Cycle
Volume 6A: Energy, 2018Deterioration of environment caused by the release of harmful greenhouse gases (mainly CO2) from the power plants has become an area of growing concern. At the present, various methods are being investigated for capturing and storing CO2. Current technologies require a huge amount of energy leading to reduction in overall efficiency.
Najmus S. Sifat, Yousef Haseli
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Thermodynamic cycle analysis for capacitive deionization
Journal of Colloid and Interface Science, 2009Capacitive deionization (CDI) is an ion removal technology based on temporarily storing ions in the polarization layers of two oppositely positioned electrodes. Here we present a thermodynamic model for the minimum work required for ion separation in the fully reversible case by describing the ionic solution as an ideal gas of pointlike particles.
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