Concept of thermoelectric (TE) energy makes it unique because of reversible energy conversion, e.g. from thermal to electrical and vice-versa. Seebeck and Peltier effects are base of all TE energy applications. Thermoelectricity has wide range of applications due to reversible energy conversion. In recent years, with technology development and global warming issues TE devices come into use in various applications because of its eco-friendly feature and distinct advantages. The thermoelectric energy has a vast range of applications in various fields like; electricity generation, refrigeration, air conditioning, particular heating/cooling, biomedical devices etc. due to its simple construction and mechanism, portability, require DC supply to run etc. This research paper thoroughly reviews the recent development and research work carried out by many researchers on thermoelectric energy applications in areas such as; power generation, refrigeration, electronic device cooling, automobile air conditioning & systems cooling, air cooling, medical field applications etc. Keywords: Thermoelectric, thermoelectric energy, application of thermoelectric, thermoelectric cooling, thermoelectric refrigerator, thermoelectric generator I. INTRODUCTIONWorld's energy demand is continuously increasing day by day and convention source of energy have limited stock. Also, conventional sources of energy have many issues of carbon emission; it is main cause of global warming. The thermoelectric (TE) system is quite suitable due to its renewable energy feature (means no carbon emission) and eco-friendly behaviour. Emissions of greenhouse gases are increasing globally because of continuous increase in demand of electricity, heating and cooling, refrigeration and air conditioning etc. Only green technologies such as wind power, solar power and other renewable energy sources can control the emission of greenhouse gases and play important role for sustainable development. Many countries are trying to control emission of carbon by forming new rules for industries. In recent few years, thermoelectric equipments have come out with potential as alternative eco-friendly applications. Applications of thermoelectric energy extended in various areas such cooling or heating, refrigeration, electricity generation, ventilation, air conditioning etc. due to its eco-friendly features and distinct advantages. Thermoelectric energy has potential to convert thermal energy into electrical energy and vice-versa. Due to solid state (no fluid/rotating part) mechanism of thermoelectric devices, it has variety of small applications for cooling of central processing units (CPU) and produce electricity in automobiles from waste heat [1].
Proper maintenance is very essential for manufacturing machinery or assets. There are number of maintenance strategies but still preventive maintenance (PM) has big portion among all other strategies of maintenance to cure the plant asset. Achieve production goal by minimizing maintenance cost is very challenging due to uncertain maintenance parameter but need of present. Therefore role of optimization is very important to maximize availability of plant machinery for production and decrease the overall maintenance cost. Optimization of PM can eliminate unnecessary maintenance activities, decrease the cost of maintenance, reduce downtime, improve system reliability, provide safety etc. This research focuses on the role of PM & maintenance management to cure plant assets and reviews the optimizations essential for PM.
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