U I R is a solution of the heat equation if where x 1 x n t denotes a general point of the domain. Heat transfer is defined as the process of flow of heat from an object at a higher temperature to an object at a lower temperature. Heat Transfer And Modes Of Heat Transfer Heat Transfer What Is Heat Conduction It is typical to refer to t as time and x 1 x n as spatial variables even in abstract contexts where these phrases fail to have. . It is known from the New Energy and Industry Technology Development Organization NEDO roam map Japan 2017 that the polymer electrolyte fuel cell PEFC power generation system is required to operate at 100C for application of mobility usage from 2020 to 2025. Heat transfer is a discipline of thermal engineering that concerns the generation use conversion and exchange of thermal energy between physical systemsHeat transfer is classified into various mechanisms such as thermal conduction thermal convection ther