entropy and exergy balances

... temperature and interface location at any instant can be easily obtained by integrating equations (5) and (6) with respect to X and Fo respectively and subsequent application of the initial and boundary ... irreversibilities (entropy generation) which destroy the portion of input exergy Figure 12 shows the effect of particle fraction and Biot number on the exergy efficiency For all values of Biot number and particle ... International Journal of Energy and Environment (IJEE), Volume 1, Issue 3, 2010, pp.445-458 The effect of Stefan number on energy storage and exergy storage has also been investigated and the results are...

Ngày tải lên: 05/09/2013, 16:10

... biopolymers – especially DNA, RNA, and protein, the molecules that are essential for information storage, replication, and metabolism Then we will explore the concept of entropy and its ubiquitous increase ... Walter L Bradley 332 and “feeding” on it Schroedinger used the term “negentropy” to refer to energy that was suitable for utilization by living systems, such as radiant energy and energy-rich compounds ... of biopolymers to (1) store information, (2) replicate with very occasional mistakes, and (3) “feed on negentropy.” Unlike biological evolution, where it is fashionable to believe that there is...

Ngày tải lên: 01/11/2013, 07:20

... Silberman and Akshay Venkatesh for thrilling discussions in New-York and Princeton Elon Lindenstrauss noticed that Theorem 1.1.1 was really about metric entropy, and not topological entropy as ... manifolds of arbitrary dimension, and we will focus our attention on the entropy of semi-classical invariant measures The KolmogorovSinai entropy, also called metric entropy, of a (g t )-invariant ... cylinder sets) There exist n1 ≥ n0 , and N0 such that, for every N ≥ N0 and for every τ ∈ [0, 1], ΣN (Wn , τ ) ≤ eN 3Λδ eN htop (F ) e(1−τ )N (1+n1 ) log l 453 ENTROPY AND THE LOCALIZATION OF EIGENFUNCTIONS...

Ngày tải lên: 06/03/2014, 08:21

... Elliptic and parabolic equations A Entropy and elliptic equations Definitions Estimates for equilibrium entropy production a A capacity estimate b A pointwise bound Harnack’s inequality B Entropy and ... be (iv) understanding the relationships between entropy and convexity I am as usual very grateful to F Yeager for her quick and accurate typing of these notes CHAPTER 1: Entropy and equilibrium ... interpretation of entropy and Chapter VIII concerns the related theory of large deviations Following Varadhan [V] and Rezakhanlou [R], I will explain some connections with entropy, and demonstrate...

Ngày tải lên: 17/03/2014, 14:29

Ngày tải lên: 17/03/2014, 15:00

Ngày tải lên: 21/03/2014, 21:56

... This textbook discusses the relation between exergy and affinity and explains the exergy balance diagram and exergy vector diagram applicable to exergy analyses in chemical manufacturing processes ... liquid, and solid states, respectively; A1h and Avh are the heat of fusion and the heat of Entropy of Heat Transfer 31 evaporation, respectively" and TI and Tv are the melting temperature and the ... U(S,V,~), H I-l(S,p,~), F b-(T, V, ~), and G G(T, p, ~) are called the thermodynamic potentials for the characteristic variables S and V; S and p; T and V; and T and p; respectively An irreversible...

Ngày tải lên: 02/04/2014, 16:43

... 15 Entropy and Information 2.1 Introduction 2.2 Entropy and Entropy Rate 2.3 Basic Properties of Entropy 2.4 Entropy Rate 2.5 Conditional Entropy and ... information in random variables, random processes, and dynamical systems Examples are entropy, mutual information, conditional entropy, conditional information, and discrimination or relative entropy, ... S Pinsker’s classic Information and Information Stability of Random Variables and Processes and by the seminal work of A N Kolmogorov, I M Gelfand, A M Yaglom, and R L Dobrushin on information...

Ngày tải lên: 24/04/2014, 17:14

Ngày tải lên: 24/04/2014, 17:21

... the base of cones with S and P as vertices Also draw spherical surfaces C1 and 222, having S and P as centers, and as radii rl and 1-2, the shortest distances from S and P to the base C If the ... relationship between entropy and information optics My earlier book, Optics and or or mat ion Theory (Wiley, 1976), has been read and used as a text by numerous universities and by engineers in ... with a Spatial Channel 89 References 93 e EntropyandInformation 4.1 Fundamental Lawsof Thermodynamics 4.2 Physical EntropyandInformation 4.3 TradingEntropywithInformation 4.4 Typical Examples...

Ngày tải lên: 05/06/2014, 11:45

... ≤ K n for each value of n and k (Take K = 3, for example.) Note also that there exists a finite constant C > 0, and numbers An and Bn such that sn,An > and sn,Bn > 0, and sn,k ≥ 0, when ≤ An < ... ≤ sn sm (3) A standard argument, compare [1, Lemma 1] and [17, Lemma A.1], shows that this guarantees that the limit S := limn→∞ n log sn , also called the entropy, exists, and that the electronic ... computed nmax (k) for k ≤ 31 and nmin (k) for k ≤ 40; the strongest bounds are derived from nmax (31) = 117 and nmin (39) = 97, which yield lower and upper bounds 31/117 ≈ 0.265 and 39/97 ≈ 0.402, respectively,...

Ngày tải lên: 07/08/2014, 08:20

... SE, 60 sec mean values) and physiological parameters were recorded continuously, and were analyzed at 30 and minutes before the event (time points -30 and -2), and at 2, and 10 minutes after the ... suctioning, and a combination of both Specifically, we evaluated whether BIS and state entropy monitoring allow detection of clinically relevant distinctions between light and deep grades of sedation, and ... Helsinki, Finland]) of the following parameters: heart rate, arterial blood pressure (systolic, diastolic and mean), pulse oximetry, end-tidal carbon dioxide tension, and respiratory pressures and volumes...

Ngày tải lên: 13/08/2014, 11:22

... ha) and 50% underpermanentcrops and pastures(includingabandonedcropland and landnotyet cultivated),24%forestarea, and 10%undersettlement(other:21%).Highpopulation growth and ... information, and of 16 JatrophainBurkinaFaso closedͲended and partiallyopenquestionsinthecategoriesmotivation and reasonfor growingJ.curcas,choiceofland and landͲusehistory,establishment and management ... probablyimportedbythePortugueseseafarerstotheCapeVerdeIslands and Guinea Bissau in the 16th century and then distributed over wider parts of Africa and Asia (Heller1996;Domergue and Pirot2008;Henning2009).Jatrophacurcasbelongingto...

Ngày tải lên: 19/11/2015, 16:41

... exhaust gas and are destroyed due to the irreversibilities in different components of the plant The useful exergy and the exergy lost as fractions of the input exergy are ðWT ÀWC Þ ein and EN ein ... each of the cases to account the useful exergy, exergy loss and exergy destruction Major exergy destruction is found to occur in the gasifier, combustor and the heat exchanger Though the parameters ... chemical exergy (ech B ) in addition to the thermomechanical exergy (eB, which is due to the elevated pressure and temperature of the gas and the mixing of the constituents) The specific chemical exergy...

Ngày tải lên: 29/07/2016, 14:03

... flow Destruction of exergy where £", V, and S are the instantaneous energy, volume, and entropy of the system, and h° is shorthand for the specific enthalpy plus the kinetic and potential energies ... number s specific entropy, J/(kg • K) S entropy, J/K Sgen entropy generation, J/K 5gen entropy generation rate, W/K Sgen entropy generation rate per unit length, W/(m • K) 5g'en entropy generation ... specific flow chemical exergy, J/kmol et specific total flow exergy, J/kmol ex specific flow exergy, J/kg ~ex specific flow exergy, J/kmol EQ exergy transfer via heat transfer, J Ew exergy transfer...

Ngày tải lên: 23/01/2014, 07:20

... I, Cengel Y A Energy, entropy and exergy concepts and their roles in thermal engineering Entropy, 2001, 3(3): 116-149 [18] Rosen M A, Dincer I Exergy methods for assessing and comparing thermal ... Energy and Environment (IJEE), Volume 3, Issue 5, 2012, pp.715-730 717 Figure T-s diagram for the combined cycle Exergy analysis and optimization The following assumptions are made for simplicity and ... efficiencies ( ηc1 and ηc ), as well as the turbine efficiencies ( ηt1 and ηt ) on the (η E )opt − ϕc1 and (eloss / (CPT1 )) − ϕc1 characteristics, respectively They show that the optimal exergy efficiency...

Ngày tải lên: 05/09/2013, 16:10

... 0018 for training and WSJ 22-24 for testing, and Toutanova and Manning (2000) use WSJ 00-20 for training and WSJ 23-24 for testing Collins uses a linear perceptron, and Toutanova and Manning (T&A4) ... slows down both the training and tagging and requires more memory Table shows the difference in the number of contextual predicates and features between the original and final taggers POS Tagging ... University Travelling scholarship to the first author, and EPSRC grant GR1M96889 Kamal Nigam, John Lafferty, and Andrew McCallum 1999 Using maximum entropy for text classification In Proceedings of...

Ngày tải lên: 22/02/2014, 02:20

... Contractual Clearing Balances Under this system, banks could elect to hold certain balances during an RMP These balances were subject to full averaging, and set as a band33; and while the Fed could ... stable ‘demand’ for reserve balances, and for many advanced economy central banks this would appear to be the main justification for continued use of RR The voluntary demand for reserve balances ... be allowed, and if so, with what constraints and over what period? (Section V.E)  The structure of RMPs, reserve carry–overs or bands, and penalties are covered in sections V.F, V.G and V.H A...

Ngày tải lên: 15/03/2014, 14:20

... be influenced when taking such words into account (Kim and Woodland, 2004) The evaluation is performed using the metrics: Precision, Recall and SER (Slot Error Rate) (Makhoul et al., 1999) Only ... retraining is suitable for using large amounts of data and for language adaptation Conclusions and Future Work This paper shows that maximum entropy models can be used to perform the capitalization ... Della Pietra 1996 A maximum entropy approach to natural language processing Computational Linguistics, 22(1):39–71 C Chelba and A Acero 2004 Adaptation of maximum entropy capitalizer: Little...

Ngày tải lên: 17/03/2014, 02:20