2023年3月31日 · The present study aims to develop new designs of double pipe heat exchanger (DPHE) to improve the heating/cooling processes at the lowest possible pumping power. Therefore, thermal performance investigation of three …

2025年1月1日 · An enhancement in the overall heat transfer between the fluids in a Double pipe heat exchanger (DPHE) can be achieved through various active or passive techniques. The present study focuses on the passive heat transfer enhancement in the annular region of a DPHE by incorporating circular ribs on the outer surface of the inner pipe.

2023年11月10日 · The current study targets improving the overall performance of a Double Pipe Heat Exchanger (DPHE), along with developing a correlation equation to predict the Nusselt number and friction factor. The effect of both the number and configuration of fins has been studied numerically in detail using ANSYS Fluent 2022 R1 software.

Double pipe heat exchanger performance in terms of three main parameters is heat transfer, pressure drop, and effectiveness. Good performance is shown with high Nusselt numbers and effectiveness but low-pressure drop.

Heat exchangers are effective devices for transferring energy between fluids without mixing. However, flow field analysis and improvement have not been fully carried out. This study investigates fin configurations to enhance hydro-thermal response of DPHEs, including number, shape, interrupted, and arraignment.

2025年1月1日 · This study is based on a typical physical model of a DPHE, in which the inner tubes facilitate evaporative heat transfer, while the annulus is dedicated to condensative heat transfer of the working fluids.

2025年3月22日 · This work aims at analyzing the performance of a double-pipe heat exchanger (DPHE) using low concentrated (0.02–0.06 vol%) water, methanol, castor oil and silicon oil based Cu-MXene hybrid ...

双管换热器 （DPHE） 对于工业过程中两种流体之间的有效热传递、提高能量回收和优化热性能至关重要。 本研究旨在通过结合加长针鳍来提高 DPHE 的效率。 DPHE 在工业应用中因其高效的传热而至关重要，但优化其性能仍然具有挑战性。 加长的针翅片是添加到换热器表面的微小突起，增加了传热的表面积。 对具有不同长度比 （R=1、2、3 和 4） 的针鳍的 DPHE 进行了数值研究，通过将结果与先前的实验数据进行比较来验证我们的模型。 计算努塞尔数 （Nu）、摩擦系数、 …

2015年1月5日 · In the present work, the performance of a Double Pipe Heat Exchanger [DPHE] has been evaluated by Computational Fluid Dynamics (CFD)package [FLUENT 14.0] and the results so obtained have been compared wherever possible.

analysis and its mathematical relation of DPHE (double pipe heat exchanger). International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056