Mechanical engineering can be broadly think as a branch which accumulates the study of Automobiles, Refrigeration, Power plants, Heat transfer, machine design, strength of materials and metallurgical processes. ... In heat transfer, we often follow the various laws of thermodynamics.
2. Fluid Mechanics
Fluid mechanics is a branch of physics concerned with the mechanics of fluids (liquids, gases, and plasmas) and the forces on them. Fluid mechanics has a wide range of applications, including mechanical engineering, civil engineering, chemical engineering, biomedical engineering, geophysics, astrophysics, and biology.
3. Heat & Mass Transfer
This journal serves the circulation of new developments in the field of basic research of heat and mass transfer phenomena, as well as related material properties and their measurements. Thereby applications to engineering problems are promoted.
Mechanical engineers can work on components and equipment for many industries including healthcare, power, transport and water. Job responsibilities vary greatly according to the size and type of employer. However, duties typically include: assessing project requirements.
5. Internal Combustion Engines
Otto cycle is the typical cycle for most of the cars internal combustion engines, that work using gasoline as a fuel. Otto cycle is exactly the same one that was described for the four-stroke engine. It consists of the same major steps: Intake, compression, ignition, expansion and exhaust.
6. Machine Design
Machine Design is the application of: mathematics, kinematics, statics, dynamics, mechanics of materials, engineering materials, mechanical technology of metals and engineering drawing. It also involves application of other subjects like thermodynamics, electrical theory, hydraulics, engines, turbines, pumps etc.
7. Material Science
Mechanical engineering covers a wide range of activities, including research in dynamics, fluids, materials, solids, and thermodynamics. Research is strongly interdisciplinary, with many connections to Applied Mathematics, Applied Physics, Earth and Planetary Sciences, and Chemistry and Chemical Biology.
8. Power Plant
Mechanical engineers are especially required in the thermal power plants and nuclear power plants. If you take up a job as a Power Plant Engineer in a thermal power plant, you will have to play a double role. You will be in charge of the operation as well as maintenance of the thermal power plant.
9. Production Engineering
Manufacturing or Production Engineering is the subset / specialization of a Mechanical Engineering. ... Professional manufacturing engineers are responsible for all aspect of the design, development, implementation, operation and management of manufacturing system.
10. Refrigeration and air Conditioning
Refrigeration, or cooling process, is the removal of unwanted heat from a selected object, substance, or space and its transfer to another object, substance, or space. ... Mechanical refrigeration, is the utilization of mechanical components arranged in a "refrigeration system" for the purpose of transferring heat.
11. Strength of Material
The applied loads may be axial (tensile or compressive), or rotational (strength shear). The stresses and strains that develop within a mechanical member must be calculated in order to assess the load capacity of that member. ... The ultimate strength of the material refers to the maximum value of stress reached.
12. Theory of Machine
"The subject Theory of Machines may be defined as that branch of Engineering-science, which deals with the study of relative motion between the various parts of a machine, and forces which act on them.