The Ultimate Guide to Design Data Book PSG PDF 19: Contents, Features, and Applications
Design Data Book PSG PDF 19: A Comprehensive Guide for Mechanical Engineers
If you are a mechanical engineer or a student of mechanical engineering, you must have heard of design data books. These are handy references that contain essential information and formulas for various engineering topics. One of the most popular and widely used design data books is the PSG PDF 19, published by the PSG College of Technology in India. In this article, we will explain what is design data book PSG PDF 19, what are its main contents, and how to apply it in mechanical engineering projects.
design data book psg pdf 19
What is Design Data Book PSG PDF 19?
Design data book PSG PDF 19 is a comprehensive collection of engineering data and design formulas for mechanical engineers. It covers various topics such as basic engineering data, machine design data, thermal engineering data, and more. It is intended to help engineers in solving design problems and performing calculations quickly and accurately.
Definition and purpose of design data book
A design data book is a reference book that contains essential information and formulas for various engineering topics. It is not a textbook that explains the theory and principles behind the data, but rather a practical guide that helps engineers in applying the data to real-world problems. A design data book can be used for various purposes, such as:
Checking the validity and accuracy of design calculations
Finding the optimal values and dimensions for design parameters
Selecting the appropriate materials and components for design purposes
Comparing different design alternatives and evaluating their performance
Verifying the compliance of design specifications with standards and codes
Features and benefits of PSG PDF 19
PSG PDF 19 is one of the most popular and widely used design data books among mechanical engineers. It has several features and benefits that make it a valuable resource, such as:
It is comprehensive and covers a wide range of topics related to mechanical engineering
It is concise and compact, with each topic presented in a single page or less
It is updated and revised regularly to reflect the latest developments and trends in engineering
It is easy to use and navigate, with clear headings, tables, charts, diagrams, and symbols
It is available in both print and digital formats, making it accessible and convenient
How to download and use PSG PDF 19
If you want to get a copy of PSG PDF 19, you have two options: you can either buy the printed version from online or offline stores, or you can download the digital version from the official website of PSG College of Technology. The digital version is free of charge and can be accessed by anyone who registers on the website. To download PSG PDF 19, you need to follow these steps:
Go to the website of PSG College of Technology at https://www.psgtech.edu/
Click on the "Academics" tab and select "Design Data Book"
Fill in the registration form with your name, email, phone number, and institution
Verify your email and log in to the website
Click on the "Download" button and save the PDF file to your device
To use PSG PDF 19, you need to have a PDF reader software installed on your device, such as Adobe Acrobat Reader. You can also print the PDF file if you prefer a hard copy. To find the information you need, you can use the table of contents, the index, or the search function of the PDF reader. You can also bookmark or highlight the pages that you frequently use for easy reference.
What are the main contents of Design Data Book PSG PDF 19?
Design data book PSG PDF 19 contains more than 600 pages of engineering data and design formulas for mechanical engineers. It is divided into three main sections: basic engineering data, machine design data, and thermal engineering data. Each section covers several topics that are relevant to mechanical engineering. Here is a brief overview of each section and its main topics:
Basic engineering data
This section provides the fundamental data and formulas that are applicable to all branches of engineering. It includes topics such as:
Units and dimensions
This topic covers the basic units and dimensions of physical quantities, such as length, mass, time, force, energy, power, temperature, pressure, etc. It also covers the conversion factors between different units and systems of units, such as SI, CGS, FPS, MKS, etc.
This topic covers the physical and mechanical properties of various materials, such as metals, alloys, plastics, ceramics, composites, etc. It includes properties such as density, specific gravity, modulus of elasticity, Poisson's ratio, coefficient of thermal expansion, thermal conductivity, specific heat capacity, electrical conductivity, magnetic permeability, etc.
This topic covers the mathematical formulas and methods that are used in engineering calculations and analysis. It includes topics such as algebra, trigonometry, geometry, calculus, differential equations, linear algebra, vector analysis, complex numbers, statistics, probability, etc.
Machine design data
This section provides the data and formulas that are related to the design of various machine elements and systems. It includes topics such as:
This topic covers the design of common machine elements such as shafts, keys, couplings, springs, screws, bolts, nuts, washers, gaskets, seals, pins, rivets, welds, joints, clutches, brakes, belts, chains, ropes, pulleys, sprockets, flywheels, cams, followers, gears, bearings, lubrication, etc. It includes the design criteria, formulas, factors of safety, standard dimensions, specifications, selection charts, etc. for each machine element.
Gears and gear trains
This topic covers the design of gears and gear trains that are used to transmit power and motion between rotating shafts. It includes types of gears such as spur gears, helical gears, bevel gears, worm gears, rack and pinion gears, etc. It also includes types of gear trains such as simple gear train, compound gear train, reverted gear train, epicyclic gear train, etc. It includes the design formulas for gear parameters such as pitch circle diameter, module, pressure angle, addendum, dedendum, clearance, tooth thickness, tooth profile, contact ratio, interference, backlash, gear ratio, torque, power, efficiency, etc.
Bearings and lubrication
Thermal engineering data
This section provides the data and formulas that are related to the design of various thermal systems and processes. It includes topics such as:
This topic covers the principles and laws of thermodynamics that govern the behavior of heat and energy in various systems. It includes topics such as zeroth law of thermodynamics, first law of thermodynamics, second law of thermodynamics, third law of thermodynamics, entropy, enthalpy, internal energy, specific heats, heat capacity, work, heat transfer, thermodynamic cycles, thermodynamic processes, etc.
This topic covers the modes and mechanisms of heat transfer that occur between different bodies or fluids. It includes topics such as conduction, convection, radiation, heat exchangers, fins, heat pipes, thermal insulation, etc. It includes the design formulas for heat transfer coefficients, heat fluxes, temperature gradients, heat transfer rates, heat transfer effectiveness, etc.
Refrigeration and air conditioning
This topic covers the design of refrigeration and air conditioning systems that are used to maintain desired temperature and humidity levels in various spaces. It includes topics such as refrigerants, refrigeration cycles (vapor compression cycle, vapor absorption cycle, gas cycle), refrigeration components (compressor, condenser, evaporator, expansion valve), refrigeration load calculation, psychrometry (dry bulb temperature, wet bulb temperature, relative humidity, dew point temperature, enthalpy, etc.), air conditioning components (fan, filter, coil, humidifier, dehumidifier, etc.), air conditioning processes (sensible heating, sensible cooling, latent heating, latent cooling, mixing, etc.), etc.
How to apply Design Data Book PSG PDF 19 in mechanical engineering projects?
Design data book PSG PDF 19 can be used in various mechanical engineering projects that involve the design of machines or thermal systems. It can help engineers in finding the optimal values and dimensions for design parameters, selecting the appropriate materials and components for design purposes, comparing different design alternatives and evaluating their performance, verifying the compliance of design specifications with standards and codes, etc. Here are some examples of how to apply PSG PDF 19 in mechanical engineering projects:
Case study 1: Design of a shaft coupling
A shaft coupling is a device that connects two shafts together and transmits torque and power between them. It is used to compensate for misalignment or vibration between the shafts. There are different types of shaft couplings such as rigid couplings (flange coupling, sleeve coupling), flexible couplings (pin-and-bushing coupling, gear coupling), universal couplings (Hooke's joint), etc.
To design a shaft coupling using PSG PDF 19, we need to follow these steps:
Determine the torque and power requirements of the shafts
Select the type and size of the coupling based on the torque capacity and misalignment allowance
Find the design data for the selected coupling from PSG PDF 19
Calculate the dimensions and specifications of the coupling components such as flanges, bolts, keys, pins, bushings, gears, etc. using the design formulas and factors of safety from PSG PDF 19
Check the stress and deflection of the coupling components using PSG PDF 19
Compare the performance and cost of different coupling alternatives using PSG PDF 19
Case study 2: Design of a heat exchanger
A heat exchanger is a device that transfers heat between two fluids without mixing them. It is used to cool or heat fluids for various purposes such as process heating or cooling, power generation, refrigeration, air conditioning, etc. There are different types of heat exchangers such as shell-and-tube heat exchangers (parallel flow, counterflow, crossflow), plate heat exchangers (gasketed, brazed, welded), finned-tube heat exchangers (longitudinal, transverse), etc.
To design a heat exchanger using PSG PDF 19, we need to follow these steps:
Determine the heat duty and temperature requirements of the fluids
Select the type and configuration of the heat exchanger based on the heat transfer area and effectiveness
Find the design data for the selected heat exchanger from PSG PDF 19
Calculate the dimensions and specifications of the heat exchanger components such as tubes, plates, fins, shells, baffles, etc. using the design formulas and correlations from PSG PDF 19
Calculate the heat transfer coefficients, heat fluxes, temperature gradients, heat transfer rates, pressure drops, etc. using PSG PDF 19
Compare the performance and cost of different heat exchanger alternatives using PSG PDF 19
Case study 3: Design of a refrigeration system
A refrigeration system is a system that uses a refrigerant to absorb heat from a low-temperature space and reject it to a high-temperature space. It is used to maintain desired temperature and humidity levels in various spaces such as refrigerators, freezers, cold storages, air conditioners, etc. There are different types of refrigeration systems such as vapor compression systems (reciprocating compressor, rotary compressor, scroll compressor), vapor absorption systems (ammonia-water system, lithium bromide-water system), gas cycle systems (air cycle system, Stirling cycle system), etc.
To design a refrigeration system using PSG PDF 19, we need to follow these steps:
Determine the refrigeration load and temperature requirements of the space
Select the type and configuration of the refrigeration system based on the coefficient of performance and reliability
Select the type and amount of the refrigerant based on the thermodynamic properties and environmental impact
Find the design data for the selected refrigeration system from PSG PDF 19
Calculate the dimensions and specifications of the refrigeration components such as compressor, condenser, evaporator, expansion valve, etc. using the design formulas and charts from PSG PDF 19
Draw the refrigeration cycle on a pressure-enthalpy diagram using PSG PDF 19
Calculate the performance parameters such as work input, heat output, coefficient of performance, refrigeration effect, etc. using PSG PDF 19
Compare the performance and cost of different refrigeration alternatives using PSG PDF 19
In this article, we have explained what is design data book PSG PDF 19, what are its main contents, and how to apply it in mechanical engineering projects. We have also provided some examples of how to use PSG PDF 19 in designing shaft couplings, heat exchangers, and refrigeration systems. We hope that this article has helped you understand the importance and usefulness of design data book PSG PDF 19 for mechanical engineers.
Here are some frequently asked questions about design data book PSG PDF 19:
Q: Who is the author of design data book PSG PDF 19?
A: Design data book PSG PDF 19 is published by the PSG College of Technology in India. The authorship is not attributed to any individual person or group, but rather to the collective effort of the faculty and students of the college.
Q: How often is design data book PSG PDF 19 updated?
A: Design data book PSG PDF 19 is updated and revised regularly to reflect the latest developments and trends in engineering. The latest edition was published in 2019.
Q: Is design data book PSG PDF 19 available in other languages?
A: Design data book PSG PDF 19 is currently available only in English. However, there are plans to translate it into other languages such as Hindi, Tamil, Telugu, etc.
Q: Is design data book PSG PDF 19 suitable for other branches of engineering?
A: Design data book PSG PDF 19 is mainly focused on mechanical engineering topics. However, some of the topics such as basic engineering data and engineering mathematics are applicable to other branches of engineering as well. Therefore, design data book PSG PDF 19 can be used as a supplementary reference for other branches of engineering.
Q: How can I get more information or feedback about design data book PSG PDF 19?