Energy Modelling Of An Aquaculture Raceway

IF 2.8 4区工程技术 Q2 ENGINEERING, MECHANICAL

Journal of Heat Transfer-transactions of The Asme Pub Date : 2023-10-21 DOI:10.1115/1.4063868

Mitchell Kuska, Kamran Siddiqui, Christopher T. DeGroot

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引用次数: 0

Abstract

Abstract Large seasonal temperature variations in aquaculture source water leaves aquaculture ponds and raceways susceptible to temperature variations leading to non-optimal growing conditions. Such conditions may slow down the growth rate and make aquatic species vulnerable to disease and potential death, leading to economic setback for aquaculture farmers. Therefore, it is advantageous to predict the temperature of aquaculture raceways under the influence of seasonal variations and study the parameters that contribute to these variations. This allows one to develop strategies and processes to better regulate the raceway temperature to maximize its productivity. A numerical energy model was developed to simulate the temperature of water inside an aquaculture raceway, and a parametric study was conducted to investigate the influence of various key parameters on the raceway temperature. It was found that surface area and flow rate have a large effect on the raceway temperature, while depth of raceway had little effect. The largest surface area tested produced outlet temperatures and heat transfer values that were 6.2% and 76% higher, respectively, than the smallest surface area tested. Decreasing flow rate from the reference value of 43 L/s to 1 L/s resulted in an 83% increase in average outlet temperature. It was also observed that the variations in the ambient air temperature alone has negligible effect on the raceway temperature. The model was further implemented to simulate the temperature of raceways located at different geographical locations.

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水产养殖跑道能量模型研究

养殖源水季节性温度变化较大，使养殖池塘和养殖场易受温度变化的影响，从而导致非最佳生长条件。这种情况可能减缓生长速度，使水生物种易受疾病和潜在死亡的影响，给水产养殖户带来经济上的挫折。因此，有利于预测受季节变化影响的养殖航道温度，并研究导致这些变化的参数。这允许开发策略和过程，以更好地调节滚道温度，以最大限度地提高其生产力。建立了水产养殖滚道内水温数值模拟模型，并对各关键参数对滚道温度的影响进行了参数化研究。研究发现，表面面积和流量对滚道温度的影响较大，而滚道深度对温度的影响较小。最大表面积测试产生的出口温度和换热值分别比最小表面积测试高6.2%和76%。当流量从参考值43 L/s降低到1 L/s时，平均出口温度升高83%。同时还观察到，仅环境温度的变化对滚道温度的影响可以忽略不计。将该模型进一步应用于不同地理位置的轨道温度模拟。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Heat Transfer-transactions of The Asme 工程技术-工程：机械

自引率

0.00%

发文量

182

审稿时长

4.7 months

期刊介绍： Topical areas including, but not limited to: Biological heat and mass transfer; Combustion and reactive flows; Conduction; Electronic and photonic cooling; Evaporation, boiling, and condensation; Experimental techniques; Forced convection; Heat exchanger fundamentals; Heat transfer enhancement; Combined heat and mass transfer; Heat transfer in manufacturing; Jets, wakes, and impingement cooling; Melting and solidification; Microscale and nanoscale heat and mass transfer; Natural and mixed convection; Porous media; Radiative heat transfer; Thermal systems; Two-phase flow and heat transfer. Such topical areas may be seen in: Aerospace; The environment; Gas turbines; Biotechnology; Electronic and photonic processes and equipment; Energy systems, Fire and combustion, heat pipes, manufacturing and materials processing, low temperature and arctic region heat transfer; Refrigeration and air conditioning; Homeland security systems; Multi-phase processes; Microscale and nanoscale devices and processes.