دانلود پایان نامه مهندسی شیمی با عنوان STUDY OF CRYOGENIC CYCLES WITH ASPEN - HYSYS SIMULATIONS

پایان نامه کارشناسی ( زبان انگلیسی ) با عنوان STUDY OF CRYOGENIC CYCLES  WITH  ASPEN - HYSYS  SIMULATIONS ( شبیه سازی سیستم های کرایوژنیک با نرم افزار هایسیس ) آماده دانلود می باشد. 

تعداد صفحات 65 

فرمت فایل: pdf

دانشگاه: Department of Mechanical Engineering National Institute of Technology Rourkela 2008-09

                                                         ABSTRACT
Computer-aided process design programs, often referred to as process simulators, flow
sheet simulators, or flow sheeting packages, are widely used in process design. Aspen
HYSYS by Aspen Technology is one of the major process simulators that are widely
used in chemical and thermodynamic process industries today. It specializes on steadystate
analysis. System simulation is the calculation of operating variables such as
pressure, temperature and flow rates of energy and fluids in a thermal system operating in
a steady state. The equations for performance characteristics of the components and
thermodynamic properties along with energy and mass balance form a set of
simultaneous equations relating the operating variables. The mathematical description of
system simulation is that of solving these set of simultaneous equations which may be
non-linear in nature.
Cryogenics is the branch of engineering that is applied to very low temperature
refrigeration applications such as in liquefaction of gases and in the study of physical
phenomenon at temperature of absolute zero. The various cryogenic cycles as LINDE
cycle, CLAUDE cycle etc govern the liquefaction of various industrial gases as Nitrogen,
Helium etc. The following work aims to simulate the cryogenic cycles with the help of
the simulation tool ASPEN HYSYS where all calculations are done at steady state and

TABLE OF CONTENT
CERTIFICATE 
ACKNOWLEDGEMENT 
ABSTRACT 
LIST OF FIGURES 
CHAPTER-1- INTRODUCTION 
1.1 Gas liquefaction systems 10
1.2 System performance parameters 10
1.3 The thermodynamically ideal system 10
1.4 Production of low temperatures 11
1.4.1 Joule Thompson effect 11
1.4.2 Adiabatic expansion 11
1.5 Existing Gas liquefaction systems 11
CHAPTER-2- LITERATURE SURVEY 12
2.1 Thermodynamic and Cryogenic Cycles Review 13
2.1.1 Thermo dynamic Cycles 13
2.1.2 Cryogenic Cycles 14
2.2 Applications of Cryogenics 18
2.2.1 Air Separation Process 18
CHAPTER-3- NUMERICAL ANALYSIS 21
3.1 System Simulation 22
3.2 Sequential Modular Approach 22
3.3 Solution Methodology 24
CHAPTER-4- ASPEN HYSYS AS PROCESS
MODELLING TOOL 26
4.1 Aspen Hysys as the simulation tool 27
7
CHAPTER-5- ASPEN HYSYS SIMULATION 31
5.1 Problem Specifications 32
5.1.1.1 Problem no 1 32
5.1.1.2 Process Flow Diagram 32
5.1.1.3 Basic description of the flowsheet 36
5.1.1.4 The Process 37
5.1.1.5 The components or the blocks or the equipments 37
5.2.1 Problem no 2 40
5.2.2 Process Flow Diagram 40
5.2.3 The Process 41
5.2.4 The components or the blocks or the equipments 42
CHAPTER-6- RESULTS AND DISCUSSION 45
6.1 LINDE Cycle Simulation Results. 46
6.1.1 GRAPHS 48
6.2 CLAUDE Cycle Simulation Results. 51
6.2.1 GRAPHS 54
6.3 Comparison between LINDE and CLAUDE Cycle 61
CHAPTER-7- CONCLUSION 62
7.1 Summery of the Work Done 63
7.2 Future Scope. 63
CHAPTER-8- BIBLIOGRAPHY 64the results hence obtained.

پاورپوینت ساختمان LSF و سازه نگهبان

 این فایل بصورت پاورپوینت که دارای 30 اسلاید می باشد برای دوستان تهیه شده است و به مباحث زیر پرداخته شده است:

 خانه های پیش ساخته، LSF ، خانه های پیش ساخته ، پیش ساخته ، خانه های سبک – ساختمان پیش ساخته دو طبقه L.S.F – سازه های نگهبان – معایب روش مهار سازی – روش دیواره ی دیافراگمی (diaphragm wall) – سیستم ساختمانی قاب‌های سبک فولادی سردنورد شده (LSF)