Withdrawn: Investigating the Role of Fuel Injection Pressure and Piston Bowl Geometries to Enhance Performance and Emission Characteristics of Hydrogen-Enriched Diesel/1-Pentanol Fuelled in CRDI Diesel Engine

The above article from Heat Transfer, published online on 5 December 2022, on Wiley Online Library ( https://onlinelibrary.wiley.com/doi/abs/10.1002/htj.22448 ), has been withdrawn by agreement between the authors, the journal Editor in Chief William M. Worek and Wiley Periodicals LLC. The withdrawal has been agreed due to a technical error at the publisher that caused the article to be mistakenly published online although its publication had been cancelled at the request of the authors.     

Features of the exponential form of internal heat generation,Cattaneo–Christov heat theory on water-based graphene–CNT–titanium ternary hybrid nanofluid flow

To increase energy efficiency, the flow of fluids containing nanoparticles is crucial in industrial applications notably in nuclear reactors and nuclear system cooling. In light of this, this study examines the flow of a water-based ternary hybrid nanofluid (graphene, single-walled carbon nanotubes, and titanium dioxide) across a curved stretching sheet with suction. The non-Fourier heat flux model is also considered in the modeling. The existing partial differential equations are converted into ordinary differential equations through the use of similarity variables. These ordinary differential equations are then numerically solved using the Runge–Kutta–Fehlberg fourth- and fifth-order method along with a shooting approach. The collection of graphical findings for the key variables on the temperature and velocity profiles is investigated. Results reveal that the heat transport in ternary hybrid nanoliquid rises as the heat source/sink parameter rises. The Biot number influences the thermal profile positively, whereas the increasing curvature parameter values reduce heat transport. The curvature parameter has a positive impact on skin friction but the suction parameter has a negative impact on skin friction.     

An Efficient and Improved Method for the Preparation of Nitriles from Primary Amides and Aldoximes†

The pivaloyl chloride‐pyridine system has been utilized as a novel and efficient reagent for the preparation of nitriles from primary amides and aldoximes. The reaction proceeds smoothly under mild reaction conditions and the products are obtained in excellent yields. This method is applicable to a wide range of substrates including aromatic, heterocyclic and aliphatic species. The dehydration takes place at room temperature in the case of primary amides and dichloromethane at reflux temperature is required for rapid conversion in the case of aldoximes.