Question

What can be done to reduce dissipation of electric energy?

Answer 1

Hint: There is no such thing as an ideal system. Energy is exchanged and some of that energy is dissipated whenever a system changes. Energy can be thought of as being stored in several ‘stores.' Although it cannot be generated or destroyed, it can be transported, dispersed, or stored in many ways.

Complete answer:
In homogeneous thermodynamic systems, dissipation is the outcome of an irreversible process. A dissipative process is one in which energy (internal, bulk flow kinetic, or system potential) is changed from one form to another, with the end form's capacity to accomplish mechanical work being less than the beginning form's.

Heat transfer, for example, is dissipative because it involves transferring internal energy from a hotter to a cooler body. Entropy varies with temperature (reduces the capacity of the combination of the two bodies to accomplish mechanical work) but never decreases in an isolated system, according to the second rule of thermodynamics.

At a given rate, these processes produce entropy (see entropy creation). The dissipated power is calculated by multiplying the entropy production rate by the ambient temperature. Heat flow through a thermal resistance, fluid movement through a flow resistance, diffusion (mixing), chemical reactions, and electrical current flow over an electrical resistance are all instances of irreversible processes (Joule heating).

To reduce electric energy dissipation, take the following steps:
• When not in use, turn off electrical equipment.
• Replace incandescent bulbs with LED or CFL bulbs.
•Only use appliances with a star rating.

Note: PWB is primarily used to dissipate heat. Convection into the atmosphere from the package's top surface. External pins or balls conduct electricity to the PWB, which is then converted into the atmosphere. Convection into the atmosphere from the package's sides.