Effect of Insulation Thickness on Thermal Stratification in Hot Water Tanks Abstract
Journal Title: Gazi Üniversitesi Fen Bilimleri Dergisi Part C: Tasarım ve Teknoloji - Year 2018, Vol 6, Issue 1
Abstract
One of the important factors to be considered in increasing the efficiency of hot water storage tanks used for thermal energy storage is thermal stratification. Reducing the temperature of the water at the base of the tank provides more utilization of the energy of the heat source during the heating of the water and improves the efficiency of the system. In this study, the effect of the insulation thickness on the outer surface of the tank and the ratio of the tank diameter to the height (D/H) on the thermal stratification was investigated numerically. Numerical analyzes were carried out for the condition that the insulation thickness was constant and variable in the range of D/H=0,3-1. Water was used as the heat storage fluid and the analysis results were obtained for eight hours cooling period. Numerical results showed that the temperature difference between the bottom and top surfaces of the tank increased between 7-9 ° C for the range of D / H = 0,3-1 with changing the insulation thickness.
Authors and Affiliations
Burak KURŞUN, Korhan ÖKTEN
Keywords
Related Articles
- EP ID EP489644
- DOI 10.29109/http-gujsc-gazi-edu-tr.327595
- Views 108
- Downloads 0
PEG-400 Supported Alumina Synthesis, Characterization and Investigation of Morphological Properties
In this study, α-alümina structures are successfully prepared via hydrothermal synthesis supported with PEG-400. The effect of the PEG-400 as structure directing agent on the particle size is investigated. The structural...
Low Temperature Range Dielectric Properties and AC Conductivity Behavior of Ta2O5 Thin Film Capacitor Formed with Sol-Gel Spin Coating Method
The dielectric constant ε and the dielectric loss factor ε and AC conductivity of 75 nm thickness tantalum pentaoxide (Ta2O5) thin film capacitor, produced by sol-gel spin coating process on Corning glass substrates, h...
Server Monitoring Application for Insider Attack Detection and Prevention
Although insider attacks have increased rapidly in recent years and cause enormous damages, there are very few academic studies that have investigated this problem and proposed a solution. Many of these attacks are kept...
A Comprehensive Study on the Sensing Characteristics of a Piezoresistive Tactile Sensor
At present, tactile sensor technology is the only solution to measure the pressure and contact area of two solid in normal contact. In this study, the sensing characteristics of a taxel inside a flexible tactile sensor w...
Design, Manufacturing and Experimental Investigation of Different Types of Solar Cooker
In this study, the performances of the solar cookers produced in different types in Ankara conditions were examined. Two different types of experiment were carried out as water and potato. Water experiments were done in...