Author(s): Ali Jaber Alkhakani , Dr. Nor Mariah Adam , Dr. Abdul Aziz Hairuddin, Hanaa Kadhim Alsabahi
Published in: International Journal of Engineering Research & Technology
License: This work is licensed under a Creative Commons Attribution 4.0 International License.
Volume/Issue: Volume. 4 - Issue. 11 , November - 2015
Distillation is the process of water purification that utilized a source of heat to vaporize water and separate it from pollutants and other impurities. Then guide the vapor into a condenser to convert it to the liquid form. This process achieved by a simple device which uses solar energy as a heat source and called solar distiller. This study present experimental comparison and mathematical approach for pressure drop Δ𝑷 between four separate heat exchanger H.Es (A, B, C, and D) as a condenser in a portable solar water distiller. The heat exchangers were fabricating from stainless steel material with same physical specifications and different in thickness or length of tube. The H.Es able to be assembled and dismantled without tools. The experimental test show that all H.Es produce the same amount of distilled water as 22.8 liter/day. The experimental and mathematical results proved that the optimum design is heat exchanger D which has lower tube thickness and length. Further, reducing thickness of tube will increase pressure drop Δ𝑷 in shell and tube sides. While reducing length of tubes will lead to reduction of pressure drop in tube side and increasing Δ𝑷 in shell side with same number of baffles. However, the effect of reducing length of tube on reduction Δ𝑷 in tube side and increase Δ𝑷 in shell side is more than the effect of thickness reductions. However, the results proved that the systems able to dispensing on pumping power, because of lower value of Δ𝑷. In addition, reducing thickness or length of tube will lead to reduce fabrication cost.
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