This is the branch of mechanical engineering that particularly deals with engines from initial concept to design and manufacturing. The engine may be for an automobile, power plant, or anything else that consumes fuel.  As the engine also emits harmful gases to the atmosphere once the fuel is burned in the engine, industrial research continues to study how to minimize the emissions and maximize the efficiency of the system with optimal cost of deploying the engine.  These will lead to the development of new innovative engines that control the emissions and fuel consumption, and optimize the performance. As a result of innovative ideas by global teams of experts, increasingly low-emission and high performance, fuel-efficient, robust technologies and new engine designs are now available in the global market.

In an engine engineering course, before a prototype is made, models are built. These models are tested and validated.  In engine engineering, engine processes involve the complex transfer of mass, momentum, and energy with a wide range of characteristic scales to be considered in a variable domain.

The modeling of engine processes means the development and use of the appropriate combination of assumptions and equations that permit critical features of the processes to be analyzed.

Before bringing an engine to market, the engine goes through various studies once design-concept is finalized viz. technical feasibility, financial/economic viability, and environmental impact.

Technical feasibility deals with the whether the design/concept of the engine is technically possible to built or not. If possible, then further studies must be done on the basis of technical soundness.  If it does not meet the standards, that concept is rejected.

Financial viability is the study of whether the proposed design is financially viable or not. Various streams of benefit and cost associated with engine are predicted. The benefit and cost are converted into one common platform in order to compare it. Various decision-making tools such as benefit-to- cost ratio and net present value are adopted in order to see whether the proposed design is beneficial or not. In general if B/C is greater than one or NPV is positive than it is determined to be a financially sound project

Environmental study deals with how much emission is released while deploying this engine. If the emission is under control as per guideline of emissions regulations, then the engine is said to be perfect and ready to be launched into the market.


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