The pictorial diagram delineates the process of generating electricity from a particular type of coal.
From a general perspective, the entirely man-made process entails various steps, initiating with mining coal and culminating in power delivery to households and industries, with waste heat being a by-product at various stages.
Concerning the first stage, after coal is mined at extraction plants, it undergoes crushing to break it down into finer pieces. Next, these crushed coal fragments are transported to a gasifier where it is converted into gas.
Regarding the following steps, after the phase aforementioned is complete, the produced gas is cooled in a separate facility, releasing excess heat as waste. It then experiences a cleaning stage whereby any impurities are removed. In the subsequent stage, the purified gas becomes the input for a gas power plant. Finally, electricity is generated and distributed for domestic and industrial, readily available for use. It is worth noting that even at this stage, additional waste heat is still emitted as a by-product.