Abstract
This work presents the construction of a test apparatus for air-conditioning application that is flexible in changing a scaled down adsorbent bed modules. To improve the heat and mass transfer performance of the adsorbent bed, a finned-tube of the adsorbent bed heat exchanger was used. The results show that the specific cooling power (SCP) and the coefficient of performance (COP) are 163 W/kg and 0.16, respectively, when the cycle time is 40 min, the hot water temperature is 90oC, the cooling water temperature is 30oC and the evaporative water temperature is 11.4oC.
References
[2] Chang KC, Chen MT, and Chung TW, (2005). Effect of the thickness and particle size of silica gel on the heat and mass transfer performance of a silica gel-coated bed for air-conditioning adsorption system.Applied Thermal Engineering, (25) 2330-2340.
[3] Chen CJ, Wang RZ, Xia ZZ, Kiplagat JK and Lu ZS, (2010). Study on a compact silicagel-water adsorption chiller without vacuum valves: Design and experimental study. Applied Energy, 87:2673-2681.
[4] Wang RZ, Ge TS, Chen CJ, Ma Q, Xiong ZQ, (2009). Solar soription cooling systems for residental applications: options and guidelines. Int. J. Refrig, 32:638-60.
[5] Khan MZ, Alam KC, BB Saha, Hamamoto Y, Akaisawa, and Kashiwagi, (2006). Parametric study of a two-stage adsorption chiller using re-heat-the effect of overall thermal conductance and adsorbent mass on system performance. International Journal of thermal sciences, (45) 511-519.
[6] Wang DC, Wu JY, Xia ZZ, Zhai H, Wang RZ, and Dou WD, (2005). Study of a novel silica gel–water adsorption chiller. Part II. Experimental study International Journal of Refrigeration (28) 1084–1091.
[7] Demir H, Mobedi M, and Ulku S, (2009). Effect of porosity on heat and mass transfer in a granular adsorbent bed. International communications in Heat and Mass Transfer, (36) 372–377.
[8] Sapienzaa Al, Glaznevb IS, Santamariaa SA, Frenia AN, and Aristov YI, (2012). Adsorption chilling driven by low temperature heat: New adsorbent and cycle optimization. Applied Thermal Engineering, (32) 141-146.
[9] Aristov YI, Sapienza A, Ovoshchnikov DS, Freni A, and Restuccia G, (2012). Reallocation of adsorption and desorption times for optimisation of cooling cycles. Internal journal of refrigeration (35) 525-531.
[10] Liu YL, Wang RZ and Xia ZZ, (2005). Experimental performance of a silica gel–water adsorption chiller. Applied Thermal Engineering, (25) 359–375.
[11] Wang RZ, Xia ZZ, Wang LW, Lu ZS, Li SL, Li TX, Wu JY and He S, (2011). Heat transfer design in adsorption refrigeration systems for efficient use of low-grade thermal energy. Energy 36 5425-5439.
[12] Lu ZS, Wang RZ, Xia ZZ, Wu QB, Sun YM, and Chen ZY (2011). Analysis of the performance of a novel solar silica gel-water adsorption air-conditioning. Applied Thermal Engineering, 31(17-19): 3636-42.
[13] Wang D, Zahng J, Yang Q, Li N, and Sumathy K (2014). Study of adsorption characteristics in silicagel-water adsorption refrigeration. Applied energy, 113; (734-741).
[14] Freni A, Sapeniza A, Glavnzev I, and Aristov Y, (2012). Experimental testing of a lab-scale adsorption chiller using a novel selective water sorbent “silica modified by Calcium nitrate” International Journal of Refrigeration, (35) 518-524.
[15] Miyazaki T, Akisawa A, (2009). The influenced of heat exchanger parameters on the optimum cycle time of adsorptions chilles. Applied thermal engineering, (29) 2708-2717.
[16] NaizamandH and DabazdehI(2012). Numerical simulation of heat and mass transfer in adsorbent beds with annular fins. International journal of refrigeration, (35) 581-593.
[17] Wen W and Ruzhu W (2005), Investigation of non-equilibrium adsorption character in solid adsorption refrigeration cycle. Heat Mass Transfer, 41: 680-684.
[18] Graber M, Kirches b, Bock H, Johannes P. Schloder B, Tegethoff W, and Kohler J, (2011). Determining the optimum cyclic operation of adsorption chillers by a direct method for periodic optimal control. International journal of refrigeration, (34) 902-913.
[19] Chang KC, Chen MT, and Chung TW, (2005). Effect of the thickness and particle size of silica gel on the heat and mass transfer performance of a silica gel-coated bed for air-conditioning adsorption system. Applied Thermal Engineering, (25) 2330-2340.
[20] Geyer J and Paar K, (2005). Development of a low capacity adsorption chiller. Europastraße 1 A-7540 Güssing, Austria.
[21] Lattief, F. A., (2014), "Design and Performance of a Solar Powered Adsorption Air-Conditioning System” Ph.D. Thesis, Baghdad University.
Copyright: Open Access authors retain the copyrights of their papers, and all open access articles are distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution and reproduction in any medium, provided that the original work is properly cited. The use of general descriptive names, trade names, trademarks, and so forth in this publication, even if not specifically identified, does not imply that these names are not protected by the relevant laws and regulations. While the advice and information in this journal are believed to be true and accurate on the date of its going to press, neither the authors, the editors, nor the publisher can accept any legal responsibility for any errors or omissions that may be made. The publisher makes no warranty, express or implied, with respect to the material contained herein.