Adsorbent Refrigerant Comparison for a Solar Powered Adsorption Cooling System using Seasonal Simulations

Date

2010-05-12

Author

Taylan, Onur
Baker, Derek Keıth
Kaftanoglu, Bilgin

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

130
views

0
downloads

The theoretical performance of a solar-powered adsorption cooling system is investigated using TRNSYS and Matlab. Adsorption models for several adsorbent-refrigerant pairs are integrated into previously developed adsorption cycle models. Seasonal transient simulations were run using these models and the actual weather data of Antalya, Turkey. Four cycle types, five working pairs and five parameters were investigated parametrically to determine the most appropriate adsorbent-refrigerant working pair and operating conditions for the Mediterranean region of Turkey, especially Antalya. Results are presented in terms of values and ratios of cooling capacity weighted COP. For the conditions explored, the thermal wave cycle, wet cooling towers and high evaporation temperatures produced the highest COP values. Additionally, each working pair has a distinct operating temperature range; therefore their selection should depend on the temperature of the available heat source (solar energy in this study).

URI

https://hdl.handle.net/11511/89364

Conference Name

10th REHVA (the Federation of European Heating and Air Conditioning Associations) World Congress (Clima 2010)

Collections

Department of Mechanical Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

Adsorption of water and ammonia on TiO2-anatase cluster models

Önal, Işık; Senkan, Selim (2006-06-15)

Density functional theory (DFT) calculations performed at B3LYP/6-31G** level are employed to study water and ammonia adsorption and dissociation on (101) and (001) TiO2 anatase surfaces both represented by totally fixed and partially relaxed Ti2O9H10 cluster models. PM3 semiempirical calculations were also conducted both on Ti2O9H10 and Ti9O33H30 clusters in order to assess the effect of cluster size. Following dissociation, the adsorption of H2O and NH3 by H-bonding on previously H2O and NH3 dissociated s...
Passive Cooling Assembly for Flat Panel Displays with Integrated High Power Components Tarı, İlker (2009-08-01) Passive cooling of flat panel display designs with integrated high power components is investigated with the help of recently available semi-emprical and CFD based heat transfer correlations. A heat-spreader-heat-sink assembly is proposed for effective external natural convection cooling of the display panel. A flat vertical surface and plate finned heat sinks with various fin heights are considered as heat sinks in the assembly. Heat dissipation limits for both types of heat sinks are determined for variou...
Design and performance analysis of a pump-turbine system using computational fluid dynamics Yıldız, Mehmet; Albayrak, Kahraman; Çelebioğlu, Kutay; Department of Mechanical Engineering (2011) In this thesis, a parametric methodology is investigated to design a Pump-Turbine system using Computational Fluid Dynamics ( CFD ). The parts of Pump-Turbine are created parametrically according to the experience curves and theoretical design methods. Then, these parts are modified to obtain 500 kW turbine working as a pump with 28.15 meters head. The final design of Pump-Turbine parts are obtained by adjusting parameters according to the results of the CFD simulations. The designed parts of the Pump-Turbi...
Epoxidation of Ethylene by Silver Oxide (Ag2O) Cluster: A Density Functional Theory Study Fellah, Mehmet Ferdi; van Santen, Rutger A.; Önal, Işık (2011-06-01) Density functional theory (DFT) calculations were employed to study epoxidation of ethylene on a [Ag14O9] cluster model representing silver oxide (001) surface. Theoretical results obtained in this study showed that formation paths of acetaldehyde and vinyl alcohol have higher activation barriers than that of ethylene oxide formation path on silver oxide (35 and 35 vs. 20 kcal/mol). Formation of the ethylene oxometallocycle intermediate is found to have a low probability on Ag2O(001) surface. The essential ...
Numerical Analysis of Nanofluids Convective Heat Transfer with Euler Euler and Mixture Model Approaches Sert, İsmail Ozan; Sezer Uzol, Nilay; Güvenç Yazıcıoğlu, Almıla; Kakaç, Sadık (2014-06-13) Forced convection heat transfer characteristics of Al2O3/water nanofluid are investigated numerically by using mixture model two-phase flow approach with Fluent software. The initially hydro-dynamically fully developed laminar nanofluid flow simulations are performed with different nanoparticle volume fractions. The effects of thermal conductivity and viscosity models on heat transfer enhancements are carried out for constant heat flux boundary condition. As a result, the heat transfer coefficient results o...

Citation Formats

O. Taylan, D. K. Baker, and B. Kaftanoglu, “Adsorbent Refrigerant Comparison for a Solar Powered Adsorption Cooling System using Seasonal Simulations,” presented at the 10th REHVA (the Federation of European Heating and Air Conditioning Associations) World Congress (Clima 2010), Antalya, Türkiye, 2010, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/89364.