Introduction to Thermodynamics
Springer Science & Business Media, 6 Δεκ 2012 - 320 σελίδες
As the title implies, this book provides an introduction to thermodynamics for students on degree and HND courses in engineering. These courses are placing increased emphasis on business, design, management, and manufacture. As a consequence, the direct class-time for thermodynamics is being reduced and students are encouraged to self learn. This book has been written with this in mind. The text is brief and to the point, with a minimum of mathematical content. Each chapter defines a list of aims and concludes with a short summary. The summary provides an overview of the key words, phrases and equations introduced within the chapter. It is recognized that students see thermodynamics as a problem-solving activity and this is reflected by the emphasis on the modelling of situations. As a guide to problem solving, worked examples are included throughout the book. In addition, students are encouraged to work through the problems at the end of each chapter, for which outline solutions are provided. There is a certain timelessness about thermodynamics because the funda mentals do not change. However, there is currently some debate over which sign convention should apply to work entering, or leaving, a thermodynamic system. I have retained the traditional convention of work out of a system being positive. This fits in with the concept of a heat engine as a device that takes in heat and, as a result, produces positive work.
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Gas power cycles
Gas turbine engines and propulsion
Άλλες εκδόσεις - Προβολή όλων
achieved adiabatic efficiency adiabatic process Air enters air-standard cycle air—fuel ratio aircraft Analysis assumed boundary calculate Carnot cycle closed system coefficient of performance combustion chamber combustion process compression ratio compressor Conceptual model condenser constant volume cooling cylinder defined device dryness fraction engine operates entropy example expansion flow energy equation fluid fuel gas turbine engine gases heat engine heat exchanger heat input heat rejection heat transfer coefficient increase isothermal process kg/s kJ/kg kJ/kmol kmol law of thermodynamics mass flow rate mean temperature difference mixture open system oxygen perfect gas petrol piston power output pressure ratio Process diagram properties psychrometric radiator Rankine cycle rate of heat refrigerator relative humidity reversible adiabatic saturated liquid saturation temperature shown in Figure specific humidity specific volume specific work output steady flow energy steam plant Substituting in equation surroundings T–s diagram thermal efficiency tube turbojet velocity water vapour wet vapour Wnet