THERMOCHEMICAL BATTERY FOR POULTRY EGG INCUBATION

Document Type : Original Article

Authors

1 Assist. Lect., Ag. Eng. Dept., Fac. of Ag., Ain Shams U., Cairo, Egypt.

2 Prof., Ag. Eng. Dept., Fac. of Ag., Ain Shams U., Cairo, Egypt.

3 Assist. Prof., Ag. Eng. Dept., Fac. of Ag., Ain Shams U., Cairo, Egypt.

4 Assoc. Prof., Ag. Eng. Dept., Fac. of Ag., Ain Shams U., Cairo, Egypt.

Abstract

The current research aims to identify the possibilities of adopting stored solar energy in thermochemical ‎batteries (TCM batteries) to accommodate ‎optimum ‎thermotolerance of chick embryo ‎development during incubation.‎ ‎A twenty-five-egg capacity TCM incubator was constructed to test the performance of ‎three rechargeable and changeable (self-indicating silica gel, white-silica gel, and ‎natural ‎zeolite) thermochemical ‎batteries in modifying the ambient temperature of the incubated ‎eggs through TCM humidification.‎ And an electrical heating backup unit was used ‎as an emergency thermal compensation unit. The incubated eggs were turned horizontally every ‎hour by an automatic turning mechanism. The overall performance of the TCM incubator was ‎compared with that of a traditional -locally manufactured- electrical incubator. Results showed that the TCM‎ ‎incubator consumed , while the electrical ‎incubator consumed  during ‎the 21 days-cycle of incubation and hatchery. The total ‎heat loss from incubator walls and ventilation was 1.5 W, 9.8 W respectively. The twenty-five incubated eggs released  of metabolic energy. The calculated overall energy ‎efficiency of the TCM self-indicating silica gel - ‎incubator was 53.9% ‎and decreased to 44.4% ‎for natural zeolite cells, while white silica gel cells reached . The TCM ‎incubator was more ‎efficient in energy consumption by  compared to the traditional electrical incubator at the ‎same operating conditions. The hatchability ratio for the TCM ‎incubator was ‎‎  and ‎  for the electrical incubator regarding egg fertility ratios were ‎ and 84% ‎respectively. Using a TCM ‎incubator can significantly reduce power consumption and production ‎costs in the poultry industry.‎

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Main Subjects


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