Download Advanced Thermodynamics and Energy Conversion by Henning Struchtrup PDF

By Henning Struchtrup

This textbook offers a radical therapy of engineering thermodynamics with purposes to classical and smooth strength conversion devices.

Some emphasis lies at the description of irreversible strategies, corresponding to friction, warmth move and combining and the assessment of the similar paintings losses. higher use of assets calls for excessive efficiencies consequently the relief of irreversible losses could be noticeable as one of many major targets of a thermal engineer. This e-book offers the mandatory tools.

Topics comprise: vehicle and airplane engines, including Otto, Diesel and Atkinson cycles, by-pass turbofan engines, ramjet and scramjet; steam and gasoline energy crops, together with complex regenerative platforms, sun tower and compressed air power garage; blending and separation, together with opposite osmosis, osmotic strength crops and carbon sequestration; part equilibrium and chemical equilibrium, distillation, chemical reactors, combustion strategies and gas cells; the microscopic definition of entropy.

The ebook contains approximately three hundred end-of-chapter difficulties for homework assignments and assessments. the cloth offered suffices for 2 or 3 full-term classes on thermodynamics and effort conversion.

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Extra info for Advanced Thermodynamics and Energy Conversion

Example text

Indeed, by its definition h = u + pv, enthalpy depends explicitly on pressure. With h0 as the enthalpy at a reference point (T0 , p0 ), the enthalpy for an incompressible solid or liquid with constant specific heat becomes h (T, p) = cavg (T − T0 ) + (p − p0 ) v + h0 . 25) Note that no substance is truly incompressible, normally the specific volume changes at least a little bit. This leads to small differences between specific heats which can be ignored as long as the compressibility is sufficiently small.

19 More on Pressure 27 More on Pressure Pressure p is defined as the force (F ) exerted by a fluid per unit area (A), p = F/A, in the limit of infinitesimal area. Pressure is isotropic, that is the force on a surface is independent of the orientation of that surface. p0 mg p Fig. 9 A piston resting on a liquid A piston of mass m and cross section A rests on a liquid in a cylinder, as depicted in Fig. 9; the atmospheric pressure is p0 . We determine the pressure p of the liquid at the piston. The piston is at rest, in mechanical equilibrium, which implies that all forces Fi on the piston add up to zero, Fi = 0.

This leads to small differences between specific heats which can be ignored as long as the compressibility is sufficiently small. 12 Example: Equilibration of Temperature We apply the first law to the situation depicted in Fig. 6. Two bodies A and B that are initially at different temperatures T¯A and T¯B , respectively, are brought into thermal contact. After a sufficiently long time, we find that both bodies have assumed the common temperature T . For this problem, kinetic energy is zero, and potential energy does not change.

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