Bu çalışmada, yakıtın kimyasal enerjisinden ısı enerjisine dönüşümü ve ısı enerjisinden mekanik enerjiye dönüşüm sağlanan içten yanmalı motorlarda kayıp olarak atmosfere verilen ısı enerjisinin kullanılabilir hale getirmek için bir atık ısı geri dönüşüm sistemi incelenmiştir. İçten yanmalı motordan elde edilen sıcak egzoz gazlarından termoelektrik modül (TEM) ile elektrik enerjisine dönüştürülen bir termoelektrik jeneratör (TEJ) tasarımı yapılmıştır. TEM’in yüzeyleri arasındaki sıcaklık farkını artırmak için modülün soğuk yüzeyini atmosfere açık olarak düşünmek yerine soğuk su eşanjörü tasarımı yapılmış ve su akımı sağlanmıştır. Hesaplamalı Akışkanlar Dinamiği (HAD) yöntemi ile TEM’in yüzeylerindeki sıcaklıklar tespit edilmiştir. Tespit edilen yüzey sıcaklıkları TEM’in sınır koşullarını oluşturmuş ve bu sıcaklıklara göre analizi gerçekleştirilmiştir. Gerçekleştirilen analiz sonucunda 39,35 W güç elde edilmiştir.
In this study, the conversion of fuel from chemical energy to heat energy and the conversion of heat energy to mechanical energy in internal combustion engines have been studied as a waste heat recycling system to make available the heat energy supplied to the atmosphere as a loss. A Thermoelectric generator design has been made that converts hot exhaust gases obtained from an internal combustion engine into electrical energy with a thermoelectric module (TEM). In order to increase the temperature difference between the surfaces of the TEM, instead of considering the cold surface of the module as open to the atmosphere, a cold water exchanger was designed and water flow was provided. The temperatures on the surfaces of the TEM have been determined by the Computational Fluid Dynamics (CFD) method. The detected surface temperatures formed the boundary conditions of the TEM and its analysis was carried out according to these temperatures. As a result of the analysis, 39.35 W of power was obtained.
Exhaust Gas Computational Fluid Dynamics Thermoelectric Heat Exhanger Thermoelectric Module
Primary Language | Turkish |
---|---|
Subjects | Mechanical Engineering |
Journal Section | Research Articles |
Authors | |
Early Pub Date | August 18, 2023 |
Publication Date | August 31, 2023 |
Submission Date | July 7, 2022 |
Acceptance Date | May 5, 2023 |
Published in Issue | Year 2023 Volume: 28 Issue: 2 |
Announcements:
30.03.2021-Beginning with our April 2021 (26/1) issue, in accordance with the new criteria of TR-Dizin, the Declaration of Conflict of Interest and the Declaration of Author Contribution forms fulfilled and signed by all authors are required as well as the Copyright form during the initial submission of the manuscript. Furthermore two new sections, i.e. ‘Conflict of Interest’ and ‘Author Contribution’, should be added to the manuscript. Links of those forms that should be submitted with the initial manuscript can be found in our 'Author Guidelines' and 'Submission Procedure' pages. The manuscript template is also updated. For articles reviewed and accepted for publication in our 2021 and ongoing issues and for articles currently under review process, those forms should also be fulfilled, signed and uploaded to the system by authors.