دانلود کتاب مکانیک سیالات Fluid Mechanics 2nd ed. by Joseph H. Spurk , Nuri Aksel
The first English edition was the translation of the fourth German edition. In
the meantime the textbook has undergone several additions, mostly stimulated
by consulting activities of the first author. Since the textbook continues
to receive favourable reception in German speaking countries and has been
translated in other languages as well, the publisher suggested a second English
edition. The additions were translated for the most part by Prof. L. Crane
from Trinity College in Dublin, who has accompanied this textbook from
the very beginning. Since the retirement of the first author, Prof. N. Aksel
from the University of Bayreuth, Germany, the second author, was actively
engaged in the sixth and the seventh edition. The additions were written by
the first author who accepts the responsibility for any mistakes or omissions
in this book.
دانلود مقاله سلولهای خورشیدی باند متوسط : پیشرفتهای اخیر و جهتگیری های آینده Intermediate band solar cells: Recent progress and future directions
Extensive literature and publications on intermediate band solar cells (IBSCs) are reviewed. A
detailed discussion is given on the thermodynamics of solar energy conversion in IBSCs, the device
physics, and the carrier dynamics processes with a particular emphasis on the two-step inter-subband
absorption/recombination processes that are of paramount importance in a successful implementation
high-efficiency IBSC. The experimental solar cell performance is further discussed, which has been
recently demonstrated by using highly mismatched alloys and high-density quantum dot arrays and
superlattice. IBSCs having widely different structures, materials, and spectral responses are also
covered, as is the optimization of device parameters to achieve maximum performance.
دانلود مقاله لایه مرزی لودویگ پرانتل Ludwig Prandtl’s Boundary Layer
این مقاله خلاصه ای دربارۀ اهمیت دستاورد بزرگ قرن یعنی ئظریۀ لایه مرزی پروفسور لودویگ پرانتل و دانشجویانش از زبان دانشمند بزرگ ایرودینامیک پروفسور اندرسون می باشد. اندرسون معتقد است پرانتل می بایست برای این نظریۀ خود در علم فیزیک، جایزۀ نوبل دریافت می نمود.
دانلود کتاب مبانی فتوولتائیک، فناوری و در عملPhotovoltaics Fundamentals, Technology and Practice
این کتاب خلاصه سخنرانیهای Konrad Mertens در دانشگاه Munster در آلمان می باشد که توسط Gunther Roth در سوئیس به انگلیسی ترجمه شده است. این کتاب دارای 11 فصل می باشد.
دانلود کتاب میکروپیشرانش برای سفینه های فضایی کوچک Micropropulsion for Small Spacecraft
Micropropulsion is an enabling technology for microspacecraft operations by
making missions possible that otherwise could not be performed. For example,
the formation and maintenance of platoons of microspacecraft will require a maneuvering
capability to counter orbital perturbations. Microspacecraft missions
involving large spacecraft resupply, repair, or surveillance will also require maneuverability.
The mission requirements for microspacecraft will be varied and, in
some cases, a large range of capability might be required on the same spacecraft.
Micropropulsion systems must be extremely versatile to address these requirements.
It is clear that there is a need for these systems-from high thrust chemical
engines to high specific impulse electric thrusters-to fulfill specific missions, just
as there is a need for larger spacecraft.
This volume was envisioned to show the state-of-the-art in micropropulsion
concepts and activities at the early stages in the development of this new and exciting
research area. It is the editors' hope that the task of updating the technological
advances in micropropulsion be taken up some years from now and compared with
this early work.
دانلود کتاب دینامیک سیالات تحلیلی Analytical Fluid Dynamics
An in-depth study of fluid dynamics is provided by
discussing a variety of topics in a more general manner
than usually encountered at the undergraduate level.
Some of the topics are familiar to you, for example, the
Euler and Navier–Stokes equations and the first and
second laws of thermodynamics. One purpose of this
text is to prepare you for courses in computational fluid
dynamics, turbulence, high-speed flow, rarefied gas
dynamics, and so on. The second objective is to help you
understand the fluid dynamic journal literature. Last,
but not least, I hope to convey some of the fascination
that abounds in our subject.
دانلود مقاله فناوریهای مبدلهای حرارتی فشرده برای کاربردهای کوره های بازیاب گرما (رکوپراتورها )COMPACT HEAT EXCHANGER TECHNOLOGIES FOR THE HTRs RECUPERATOR APPLICATION
Modern HTR nuclear power plants which are now under development (projects GT-MHR, PBMR)
are based on the direct cycle concept. This concept leads to a more important efficiency compared to
the steam cycle but requires the use of high performance components such as an helium/helium heat
exchanger called recuperator to guarantee the cycle efficiency. Using this concept, a net plant
efficiency of around 50% can be achieved in the case of an electricity generating plant. As geometric
constraints are particularly important for such a gas reactor to limit the size of the primary vessels,
compact heat exchangers operating at high pressure and high temperature are attractive potential
solutions for the recuperator application. In this frame, Framatome and CEA have reviewed the
various technologies of compact heat exchangers used in industry. The first part of the paper will give
a short description of the heat exchangers technologies and their rcinges of application. In a second
part, a selection of potential compact heat exchangers technologies are proposed for the recuperator
application. This selection will be based upon their capabilities to cope with the operating conditions
parameters (pressure, temperature, flow rate) and with other parameters such as fouling, corrosion,
compactness, weight, maintenance and reliability.
دانلود کتاب آنالیز، طراحی و بهینه سازی مبدلهای حرارتی فشرده(تبادلگرهای گرمای فشرده) با استفاده از رویۀ اجزاء محدود و دینامیک سیالات محاسباتی Compact Heat Exchangers Analysis, Design and Optimization using FEM and CFD Approach
دراین کتاب طراحی تبادلگرهای گرما با استفاده از روشهای مختلف مخصوصاً cfd و fem تشریح شده است.
دانلود کتاب دینامیک سیالات Fluid Dynamics
This book is dedicated to readers who want to learn fluid dynamics from the beginning. It assumes a basic level of mathematics knowledge that would correspond to that of most second-year undergraduate physics students and examines fluid dynamics from a physicist’s perspective. As such, the examples used primarily come from our environment on Earth and, where possible, from astrophysics. The text is arranged in a progressive and educational format, aimed at leading readers from the simplest basics to more complex matters like turbulence and magnetohydrodynamics. Exercises at the end of each chapter help readers to test their understanding of the subject (solutions are provided at the end of the book), and a special chapter is devoted to introducing selected aspects of mathematics that beginners may not be familiar with, so as to make the book self-contained.
دانلود کتاب اصول، فناوریها و تجهیزات تبدیل انرژی پایدار برای الکتریسیته و تولیدات جنبی Sustainable Energy Conversion for Electricity and Coproducts Principles, Technologies, and Equipment
The book starts with an introduction to energy systems (Chapter 1) and describes
the various forms of energy sources: natural gas, petroleum, coal, biomass, other
renewables and nuclear. Their distribution is discussed in order to emphasize the uneven
availability and finiteness of some of these resources. Impact on the environment
is also included along with an introduction to the supply chain and life cycle analyses
in order to emphasize the holistic approach required for sustainability.