Results 321 to 330 of about 3,557,380 (389)

Thermodynamics of Cycles

2016
An important application of thermodynamics is the analysis of power cycles through which the energy absorbed as heat can be continuously converted into mechanical work. A thermodynamic analysis of the heat engine cycles provides valuable information regarding the design of new cycles or a combined cycle for improving the existing cycles, or pushing ...
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Thermodynamic analysis of the transposed-cycle

37th Joint Propulsion Conference and Exhibit, 2001
Due 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, Kirk Christensen, T. Scott   +2 more
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Components and Thermodynamic Cycles

2019
Although 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, 2006
Since 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, 2006
Because 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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Basic Thermodynamic Cycles

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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Thermodynamic optimization of the turbofan cycle

Aircraft Engineering and Aerospace Technology, 2006
Purpose – 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, Yousef S.H. Najjar   +1 more
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Thermodynamic Modeling of Allam Cycle

Volume 6A: Energy, 2018
Deterioration 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 assessment of combined supercritical CO2 cycle power systems with organic Rankine cycle or Kalina cycle

Sustainable Energy Technologies and Assessments, 2022
Huaitao Zhu, G. Xie, Han Yuan, S. Nižetić   +3 more
semanticscholar   +1 more source

Thermodynamic cycle analysis for capacitive deionization

Journal of Colloid and Interface Science, 2009
Capacitive 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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