Effect of Change in the Curvature of Flow and Performance Characteristics of Straight and S-shaped Diffuser

Gupta, A. P.; Singh, Hardial; Raghav, Ashok Kumar

doi:10.1007/s40032-020-00601-7

Cited by 3 publications

(1 citation statement)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…From an engineering point of view, the goal of a CFD code is to calculate the values of average flow volume such as pressure flow, velocity, and skin friction with a reasonable accuracy. The work becomes more demanding when working with separated flows for four main reasons 20‐25 : The presence of adverse pressure gradients. The presence of large recirculation zones. The presence of free shear layers. The fact that separated flows are not statistically stationary.…”

Section: Governing Equationsmentioning

confidence: 99%

Computational and statistical analysis on the U‐tube heat exchanger with different passes configuration: Taguchi method

Gupta¹,

Sharma²,

Singh

et al. 2020

Heat Trans

Self Cite

View full text Add to dashboard Cite

In the present study, the passive technique of heat transfer in which single pass and double passes are included in a simple U‐tube heat exchanger is analyzed. The computational fluid dynamics (CFD)‐based parametric analysis is carried out to optimize the parameters affecting the temperature drop and heat transfer achieved from the U‐tube heat exchanger. ANSYS Fluentv20 is used for the CFD analysis, and the RNG k‐ɛ model and energy equation were considered to define the turbulence and heat transfer phenomena. The Taguchi method is used to formulate the experimental work and analyze the working parameters of the U‐tube heat exchanger, such as hot and cold mass flow rate and hoRenew Energyt inlet temperature and cold inlet temperature. For the U‐tube heat exchanger, four operating parameters are considered at four different levels in the Taguchi method. The best combination of parameters for achieving a maximum temperature drop is A4B1C2D3, and it is A3B4C1D2 in case of heat transfer. A U‐tube single‐pass heat exchanger is more effective as compared with other U‐tube heat exchangers (zero‐ and double‐pass). Experimental results are provided to validate the suitability of the purpose of the approach.

show abstract