EFFECT OF EVAPORATIVE COOLING SYSTEM ON MICROCLIMATIC CIRCUMSTANCES OF COMMERCIAL CLOSED LAYING-HENS HOUSE UNDER DELTA-ZONE CLIMATIC CONDITIONS

Document Type : Original Article

Author

Lecturer , Agric. Eng. Dept., Faculty of Agric., Tanta University, Egypt.

Abstract

High temperature gradients can markedly affect laying hen's growth development, productivity, health and welfare of the birds. This research work was conducted to investigate the feasibility of using direct evaporative cooling to improve the indoor air conditions in a laying-hens house. In this present study trail, a laying-hens house of 460 m2 floor surface area was tested under climatic conditions of eastern area of coastal Delta, Egypt (latitude angle of 31.05ºN, longitude angle of 31.37ºE, and mean altitude above sea level of 14 m). Experiments were performed through three summer months of 2014 (from June to August) for laying-hens chickens at 150 days of age. Three different water flow rates (60, 70 and 80 l/min) were examined during the experimental work to determine the best one can be compensated the high air temperature occurred inside the housing. In order to achieve that, different measurements were accomplished in a commercial closed house of laying hens equipped with a complete evaporative cooling system (fan-pad system). Cooling effect (CE), cooling efficiency (η), temperature humidity index (THI), vapor pressure deficit (VPD), rate of heat energy removal from the laying hen's house (Q), total amount of moisture addition to the saturated air after cooling by evaporative process (W) and both of bird's body weight and production egg rate were computed during the experimental period. Experimental data revealed that the evaporative cooling system was able and adequate to keep and maintain the indoor air temperature of laying hens housing at desired level. The obtained results also clarified that the daily average cooling efficiency during June, July and August, was determined as 77.4%, 75.6% and 79.5%, respectively. Accordingly, the indoor dry- bulb temperature lowered between 7.1 - 8.5 °C with 30 – 40% rise in air relative humidity.

Al- Sulaiman, F. (2002) "Evaluation of the performance of local fibers in evaporative cooling" Energy Conversion and Management, 43 (16): 2267-2273
ASRAE (2005) "Handbook of fundamentals" American Society of Heating, Refrigerating, and Air Conditioning Engineers, Atlanta, GA 30329 
Cerci, Y. (2003) "A new ideal evaporative freezing cycle" International Journal of Heat and Mass transfer, 46: 2967-2974.
Chung, M., Liao, S. ; and Tin, S. (2010) "Characterizing the performance of alternative cooling pad media in thermal environmental control applications" Taiwan 10617, Republic of China.
Costelloea, B. ; and Finn, D. (2003) "Indirect evaporative cooling potential in air-water systems in temperature climates" Energy and Buildings, 35: 573-591.
Cruz, V. F. ; Perrissinotto, M. ; and Lucas, E. (2006)  "Cooling livestock buildings by pad and fan evaporative cooling system (pad cooling) In: Animal housing in hot climates" a Multidisciplinary View (Naas I ed), pp. 37-38, CIGR section II working group in cooperation with Eurageng, Campians, SP- Brazil.
Dağtekin, M. ; Karaca, C. ; and Yildiz, Y. (2009)  "Performance characteristics of a pad evaporative cooling system in broiler house in Mediterranean climate" Biosystems Enginnering, I03: 100-104
Darwesh, M.; Abouzaher, S ; Fouda, T and Helmy, M. (2009) "Effect of using pad manufactured from agricultural residues on the performance of evaporative cooling system" Jordan Journal of Agricultural Sciences, 5(2): 111-127.
Dzivama, A. U ; Bindir, U. B ; and Aboaba, F.O. (1999) "Evaluation of pad materials in construction of active evaporative cooler for storage of fruits and vegetables in arid environments" Asia, Africa and Latin America, AMA, 30 (3):51-55.
Franco-Jimenez, D. J. ; and Beck, M. M. (2007) "Physiological changes to transient exposure to heat stress observed in laying hens" Poultry Science, 86: 538-544.
Gates, R. S.; Usry, J. L.; Nienaber, J. A.; Turner, L. W. and Bridges, C. (1991) "An optimal misting method for cooling livestock housing" Transactions of the ASAE, 34(5):2199-2206.
Gates, R. S.; Zhang, H.; Colliver, D. G. and Overhults, D. G. (1995) "Regional variation temperature humidity index for poultry housing" Transactions of the ASAE, 38 (1): 197-205
Gunhan, T. ; Demir, V. ; and Yagcioglu, A. K. (2007) "Evaluation of the suitability of some local materials as cooling pads" Biosystems Engineering, 96(3):369-377
Kilic, L. ; and Simsek, E. (2013) "The effects of heat stress on egg production and quality of laying hens" J. of Animal and Veterinary Advances, 12 (1): 42-47.
Kirunda, D. F. ; Scheideler, S. E. ; and McKee, S. R. (2001) "The efficacy of vitamin E (DL-alpha-tocophery1 acetate) supplementation in hen diets to alleviate egg quality deterioration associated with high temperature exposure" Poultry Science, 80: 1378-1383.
Kittas, C.; Bartzanas, T. and Jaffrin, A. (2001) " Greenhouse evaporative cooling: Measurement and data analysis. Transactions of the ASAE, 44(3): 683-689.  
Kittas, C.;  Bartzanas, T. ; and Jaffrin, A.(2003) "Temperature gradients in a partially shaded large greenhouse equipped with evaporative cooling pads" Biosystems Engineering, 85(1): 87-94
Liao, C. M and Chiu, K. H. (2002)  "Wind tunnel modeling the system performance of alternative evaporative pads in Taiwan region" Building Environment, 37:177-187
Lin, H. ; Jiao, H. C. ; Buyse, J. ; and Decuypre, E. (2006) "Strategies for preventing heat stress in poultry" J. of Worlds Poultry Science, 62: 71-86.
Maheshwari, G. P. ; Al-Ragom, F. ; and Suri, R. K. (2001) "Energy saving potential of an indirect evaporative cooler" Applied Energy, 69: 69-76.
Mashaly, M. M. ; Hendricks, G. L. ; Kalama, M. A. ; Gehad, A. E. ; Abbas, A. O. ; and Patterson, P. H. (2004) "Effect of heat stress on production parameters and immune response of commercial laying hens. Poultry Science, 83: 889-894.
Nelson, P. V. (2006) "Greenhouse Operation and Management" fourth edition, Prentice-Hall, Inc., New Jersey 07632
Pierre, ST. N. R; Cobanov, B. and Schnitkey, G. (2003). Economic losses from heat stress by us livestock industries. J. Dairy sci.86:52-77.
Sansibury, D. ; and Sainsbury, P (2003) "Livestock health and housing" fourth edition, Cassell Ltd, London, UK
Sethi, V. P. ; and Sharma, S. K. (2007) "Survey of cooling technologies for worldwide agricultural greenhouse applications" Solar Energy, 81: 1447-1459.
Seven, P. T. (2008) "Effects of dietary Turkish propolis and vitamin C on performance, digestibility, egg production and egg quality in laying hens under different environmental temperatures" J. of Asian Aust. Animal Science, 21: 1164-1170.
Ugurlu, N. ; Acar, B. ; and Topak, R. (2002) "production performance of caged layers under different environmental temperatures" Arch. Geflugelk, 66: 43-46.
Whitehead, C. C. ; Bollengier-Lee, S. ; Mitchell, M. A. ; and Williams, P. E. V. (1998) "Alleviation of depression in egg production in heat stressed laying hens by vitamin E." proceedings of 10th European poultry Conference, June 21-26, Jerusalem, Israel: 576-578.