Review on Design and Theoretical Model of Thermoelectric (original) (raw)

Design and Analysis of a Thermoelectric Air-conditioning System

Journal of Scientific Research and Reports

Thermoelectric devices use the Peltier effect which creates a heat flux between the junctions of two different types of materials. The thermoelectric module also referred to as a heat pump transfers heat from one side to the other when a DC current is applied. This study carried out the theoretical and experimental analysis of a thermoelectric air conditioning system. A prototype thermoelectric air conditioner of 286 W cooling capacity was built and a testing enclosure made from plywood and Styrofoam was also constructed in order to validate the theoretical result with an experimentation. It was discovered that thermoelectric air conditioning took 4 minutes to reach its desired temperature of 22℃ whereas the standard air conditioning system (Refrigeration Cycle) took 20 minutes to cool to a room temperature. Economically it was also discovered that thermoelectric air conditioning system is 50% cheaper than the refrigeration cycle air conditioning systems. The thermoelectric air cond...

Review on Thermoelectric Air Conditioning System: Applications and Technology

Refrigerator and air conditioners are the most energy consuming home appliances and for this reason many researchers had performed work to enhance performance of the refrigeration systems. Most of the research work done so far deals with an objective of low energy consumption and refrigeration effect enhancement. Thermoelectric refrigeration is one of the techniques used for producing refrigeration effect. Thermoelectric devices are developed based on Peltier and Seebeck effect which has experienced a major advances and developments in recent years. The coefficient of performance of the thermoelectric refrigeration is less when it is used alone; hence thermoelectric refrigeration is often used with other methods of refrigeration. This paper presents a review of some work been done on the thermoelectric refrigeration over the years. Some of the research and development work carried out by different researchers on TER system has been thoroughly reviewed in this paper. The study envelopes the various applications of TER system and development of devices. This paper summarizes the advancement in thermoelectric refrigeration, thermoelectric materials, design methodologies, application in domestic appliances and performance enhancement techniques based on the literature. The present airconditioning system produces cooling effect by refrigerants like Freon, Ammonia, etc.Using these refrigerants can get maximum output but one of the major disadvantages is harmful gas emission and global warming. These problem can be overcome by using thermoelectric modules (Peltier effect) air conditioner and their by protecting the environment. The present paper deals with the study of thermoelectric air conditioner using different modules are discussed. Thermoelectric cooling systems have advantages over conventional cooling devices, such as compact in size, light in weight, high reliability, no mechanical moving parts and no working fluid.

CONSIDERATION FOR DESIGN OF THERMOELECTRIC REFRIGERATION SYSTEM 1

A combination of factor notably environmental concerns about global warming and ozone depletion due to refrigerants and the increasing demand for electronics and optoelectronic cooling led to renewed activity in alternative cooling technologies. Currently, thermoelectric cooling is considered a popular cooling technology. This paper provides a critical review of thermoelectric technology and assesses its potential applications in refrigeration.

A review on the progress and development of thermoelectric air conditioning system

Taylor & Francis, 2023

Thermoelectric coolers (TECs) have a high potential to dominate traditional air conditioning and become the future of HVAC (heating, ventilation, and air conditioning). TECs offer several advantages over traditional air conditioning systems, most notably in terms of zero greenhouse gas emissions, a leakfree environment, and cost efficiency. Despite all these concerns, efficient cooling performance and energy consumption are two major barriers for the rapid adoption of TECs. This article provides a comprehensive literature review of recent developments and challenges in implementing TECs to increase energy consumption and cooling performance. In particular, through the development of components and physical parameters such as thermoelectric material, the effect of fluid flow and the geometry of the heat sink of the thermoelectric cooling system. In addition, the articles will highlight the significant opportunities for thermoelectric applications to achieve economic and environmental benefits. Thermoelectric cooling with the latest conversion efficiency is technically practical and economical for small and micro applications in the current scenario. If thermoelectric cooling is applied on a large and medium scale in commercial practice, it would further develop green technology that improves environmental conditions as well as the energy supply.

Thermodynamic analysis of a thermoelectric air conditioner

International Journal of Power Electronics and Drive Systems (IJPEDS), 2022

This paper discusses the results of tests done to investigate the performance of a thermoelectric air conditioner (TEAC). The TEAC is composed of twelve thermoelectric modules (TEMs). The TEMs were fixed to rectangular fin heat sinks on both their hot and cold sides. With an increased input voltage, the cooling capacity increased. At a 6 V input voltage flow, a suitable condition occurred. The rate of hot air flow was 0.48 kg/min, and the cooling capacity was 157.0 W, resulting in an outlet air temperature of 28 o C. The coefficient of performance (COP) was calculated and found to be 0.92. Exergy analysis is used to determine the energy flows and second law efficiencies of a TEMs system and its components. The exergy destruction and second law efficiency were observed to increase when the TEAC's input voltage was increased. The TEAC's maximum exergy efficiency was 0.35, which was low compared to the coefficient of performance.

Review on Thermoelectric Refrigeration: Applications and Technology

International Journal of Modern Trends in Engineering and Research, 2015

Analytical Investigation of Thermoelectric Performance for Cooling Application

This paper presents the method used to predict the internal parameters of thermoelectric module (TEM) and the several factors that affect the temperature reduction of air in Thermoelectric (TE) cooling system. A TE cooling system consists of three TEMs attached on the top of an air duct with the dimensions 9.3 cm × 9.3 cm × 55 cm. Ambient air flows through the duct and its outlet temperature is estimated by using the log mean temperature difference (LMTD) method for different weather conditions. At the considered conditions, results showed that 6 A is the optimum operating current, and the maximum temperature reduction can reach to 2.41 °C. The performance of TE cooling system strongly depends on the ambient condition and for the considered 40 hours weather conditions, the maximum temperature reduction happened at around 3 pm. It was also found that the increase of inlet air velocity causes the temperature reduction to decrease exponentially. As a result, this study identified the correlate effects of the ambient weather, the operating current and the air velocity on the TE cooling system. As one does not have control on the ambient weather, selecting the optimum operating current level and inlet air velocity of the system is important to fully utilize the cooling effect of the system.

Design of Thermoelectric Air Cooler: A Review

The impact of ongoing progress in Science and Technology has created variety of systems that can be used in producing of refrigeration effect with the use of thermoelectric module and photovoltaic module for generation of energy in which we further use for cooling and heating effect. The most important utilization of this portable air cooler is for to deliver cold air. A Thermoelectric module (Peltier Module) is used instead of refrigeration system (VCC or VAC cycle). The most important utilization of this air cooler is for to deliver cold air. A Thermoelectric module (TEM) is used as it is based on the principles of Peltier effect. The use ofPeltier effect is to create heating side and cooling side and also to maintain effectiveness. Thermoelectric Air cooler (TEAC) is a solid state heat pump in which uses the components that are available commercially. The thermoelectric refrigerator does not produce chlorofluorocarbon (CFC). It is pollutant free-contains no liquids or gases, portable, compact, creates no vibration or noise because of the difference in the mechanics of the system. It is a prototype and its semiconductor materials, by Peltier effect, to provide instantaneous cooling or heating. It has the advantage of having no moving parts and thus maintenance free.

Development of cooling HVAC-type system based on thermoelectric effect

2015

The project was carried out in a company with the purpose to develop a cooling HVACtype system, based on thermoelectric technology into a special application. The project was completed over a period of half a year from August 2014 to January 2015, and will be developed later on. The major goals of the project were achieved, and further steps were figured out. This project was implemented in several steps. Research of the proposed technology was the initial point. In the beginning, no clear solution was known, so the current market situation study was completed as well. On that basis the development of the final product was done. Evaluation of advantages and disadvantages, further improvements and aims finalized the project. Thermoelectric effect was stated as the basic technology for the cooling system. The specific application was designed according to the purpose of integration the system into the company's product. Two parts were included in the project. The first one was cooling the device physical prototype design. The second part was Arduino-based control system implementation. Those steps were successfully completed in accordance with the plan. All in all, the project was completed successfully. The cooling system based on a thermoelectric principle prototype and its control system were implemented, and integrated into the company's main product. However, obvious limitations of the system were analysed, and possible solution for improvements was offered.

Review on Design and Theoretical Model of Thermoelectric (original) (raw)

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