Experimental Performance of a Finned-tube Silica Gel Adsorption Chiller for Air-Conditioning Application
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.
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[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.
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