Computer-Aided Design (CAD) | Advantages, Co‐ordinate systems, drawing commands of CAD Write short notes on: Advantages of Computer-Aided Design (CAD) Co‐ordinate systems used in CAD Four drawing commands Four edit commands Solid modeling Give the list of software, currently available for 2D solid modeling. Answer: (a) Advantages of CAD: The CAD … [Read more...] about Overview of Computer Aided Design (CAD) | Advantages | Co‐ordinate systems | drawing commands
Technical Articles
Working principle of Bell Coleman air refrigeration system
Q: Explain the working principle of the Bell Coleman air refrigeration system. Also, find the coefficient of performance. Working principle of the Bell Coleman air refrigeration system : The Bell Coleman air refrigeration system is based on a reverse Joule cycle. The components of the Bell Coleman air refrigeration system are shown in figure (a). In this system, the air … [Read more...] about Working principle of Bell Coleman air refrigeration system
Kelvin‐Planck and Clausius statements of second law of thermodynamics
Q: Give Kelvin‐Planck and Clausius statements of the second law of thermodynamics. Justify that violation of the Kelvin‐Planck statement leads to violation of the Clausius statement and vice versa. Kelvin‐Planck statement: It is impossible to construct a heat engine or device which operates in a cycle that produces no other effects than the production of work and the transfer … [Read more...] about Kelvin‐Planck and Clausius statements of second law of thermodynamics
Different types of gears used for power transmission
Q: What are the different types of gears used for power transmission? Draw a simple train of gear and establish a relation between the speed of the driver and follower wheel with a number of teeth on each of them. … [Read more...] about Different types of gears used for power transmission
Efficiency of Rankine cycle
Derive an expression for efficiency of the Rankine cycle? How this cycle is different from the Carnot cycle? The Rankine cycle is the ideal cycle for vapor power plants. The ideal Rankine cycle does not have any internal irreversibility. Thermodynamic analysis of cycle : Process (4‐1): Constant pressure heat addition in a boiler. Process (1‐2): Isentropic expansion in a … [Read more...] about Efficiency of Rankine cycle