The last source, the formula of statistical thermodynamics, is covered in Chapter 18 of this textbook. Property values are often given in thermodynamic problem statements in the process path designation. For ex
Using your definition, a transmission belt could be seen as a heat engine with an efficiency of almost unity. Taking net work divided by input heat allows to concentrate on the conversion process. Last edited: Mar 28, 2017 Mar 28, 2017 #4 greypilgrim 579 44 DrClaude said: Indeed, ...
Exergy efficiency is mainly dependent on the internal exergy losses in the process of heat generation in the reactor. In the case of assumed parameters of existing pressurized water reactor technology, exergy losses related to the nuclear exergy of fuel supplied to the reactor are as follows: ...
The analytical formulae for the dimensionless power output and efficiency, as functions of the total pressure ratio, component (HTHE, hot- and cold-side heat exchangers) effectivenesses, compressor and turbine efficiencies and the thermal capacity rates of the working fluid and the heat reservoirs,...
The descrip- tion of these properties will be most likely tied to the thermodynamic description of the individual phases and for expanding the CALPHAD code to include these prop- erties; the availability of a source code for the calculation of thermodynamics will greatly benefit the efficiency of...
However, the associated increase of the band gap that exceeds 2 eV22 limits the accessible power conversion efficiency when aiming for solar cell absorber mhcayatditorearnziaiXnls =i.uT m[hNeiHroen3foOsrwHe,e]wr+ee,r[feNocceHuns3tNloynHup2s]ee+dr,oi[vnPshHkyit4be]+rsi,tdr[...
Abstract Non-ideal thermodynamics of solid solutions can greatly impact materials degradation behavior. We have investigated an actinide silicate solid solution system (USiO4–ThSiO4), demonstrating that thermodynamic non-ideality follows a distinctive, atomic-scale disordering process, which is usually ...
The controlled presence of these constituents in raw materials is beneficial in aiding phase formation, reaction kinetics, refractory life, fuel efficiency and hydration during application [7, 9–11]. As cement clinkerization process requires to form suf- ficient ionic liquid (25–30%) for ...
The efficiency of a thermoelectric solid is found to depend on material properties through the dimensionless parameter ZT: (2)ZT=TS2/κρ where the electrical resistivity is ρ=1/σ. Z is defined as the figure of merit and ZT is often referred to as the dimensionless figure of merit. For...
4.1.6 Efficiency and Carnot factor So far, this chapter has presented the principles of Thermodynamics applied to closed and open systems undergoing changes of state. It is now time to focus on systems that undergo cyclic processes to convert energy from a high-temperature source into useful work...