by Maryam Hussain How the working of a theoretical engine was proposed? The theoretical heat engine was proposed by Sadi Carnot in 1824 . Heat engines are devices that can convert heat into mechanical energy. Like a Steam engine or Motor vehicle, the working principle of all heat engines is the same in which any working substance gas or vapor is brought back to the initial stage by going through different thermodynamic stages of a cyclic process . Carnot suggested that, if a heat engine goes through fixed thermodynamic stages of a specified process, then the efficiency of the heat engine may be 100% possible. Ideally, this engine gives maximum efficiency. No other engine can be more efficient than this. The specified cyclic process suggested by Carnot is called the Carnot cycle. The Carnot engine has four main parts: 1). First, an insulated, non-conducting stand , so that the transfer of energy is not possible . 2). Second, a hot reservoir with infi...
by Maryam Hussain What is a Plan? A plan is a document that aims to produce a workable schedule that will achieve project goals and serve as a standard against which actual progress can be measured. A plan defines: 1. What should be done (Objectives & activities) 2. How should activities be performed (methods) 3. Who should perform each activity and with what means (resources) Objectives can be act of minimizing the time to complete all activities, these can be act of minimizing the number of activities that are completed after the committed due dates, and so on. Activities may be working of craftsman in a workshop, departures and arrivals of trains on a platform, stages in a construction project, or assembling the parts to build a computer. Methods may be the operating procedures; although detailed procedures are not within the scope of a plan and, rather, title, code & revision of applicable procedures are documented in the plan. Res...