Results 81 to 90 of about 3,852 (197)
Scientific AfricanDouble-tube heat exchangers are essential in industrial thermal systems, yet their efficiency is constrained by thermal boundary layer resistance. While individual studies have explored corrugated tubes, the literature lacks a centralized comparative ...
Saif Ali Kadhim +7 more
doaj +1 more source
The Flow of Power-Law Fluids in Axisymmetric Corrugated Tubes [PDF]
SSRN Electronic Journal, 2011 In this article we present an analytical method for deriving the relationship between the pressure drop and flow rate in laminar flow regimes, and apply it to the flow of power-law fluids through axially-symmetric corrugated tubes. The method, which is general with regard to fluid and tube shape within certain restrictions, can also be used as a ...
openaire +4 more sources
Advances in Floating Solar Desalination Systems
Water and Environment Journal, EarlyView.This review critically classifies floating solar desalination systems into five main categories and compares their thermal performance, productivity and technological limitations. Membrane‐based and multieffect systems showed the highest efficiencies, while traditional designs remain limited by heat losses and scaling.
Daiane Silva de Abreu Benedito +4 more
wiley +1 more source
Earthquake Spectra, Volume 42, Issue 3, August 2026.Fire sprinkler systems are critical for fire safety, but their functionality can be impaired by seismic damage. This study develops new seismic fragility functions for acceleration‐sensitive damage requiring monitoring, maintenance, and repair in code‐compliant fire sprinkler piping systems, using experimental data from full‐scale experimental tests ...
Jitendra Bhatta +2 more
wiley +1 more source
Navigating Stress: Exploring the Role of Empathy in Caregiving
Developmental Psychobiology, Volume 68, Issue 4, July 2026.ABSTRACT Stress can negatively impact caregiving behavior; while chronic stress is consistently associated with reduced caregiver sensitivity, evidence regarding acute stress remains mixed. This preregistered study examined the causal effects of acute psychosocial stress on caregiver sensitivity with an experimental pseudorandomized design.
Hannah Spencer +4 more
wiley +1 more source
Handbook of Establishing and Maintaining Oxygen‐Free Atmospheres
Advanced Engineering Materials, Volume 28, Issue 12, 17 June 2026.This study presents a practical framework for creating oxygen‐free atmospheres at ambient pressure using silane‐doped inert gases. The results show that ultra‐low oxygen levels and strongly reduced water content can be achieved through controlled silane dosing, drying systems, and sensor monitoring.
Sascha Jan Zimmermann +3 more
wiley +1 more source
Case Studies in Thermal EngineeringFalling film evaporators designed for heat pumps can enhance energy efficiency compared to traditional flooded evaporators. However, experimental studies on the falling film heat transfer performance of low-global warming potential (GWP) refrigerants in ...
Sewon Lee +5 more
doaj +1 more source
Advanced Engineering Materials, Volume 28, Issue 12, 17 June 2026.This paper presents a novel approach to reducing oxide layers on metal powders using low‐temperature hydrogen dielectric barrier discharge plasmas at atmospheric pressure. Unlike conventional hydrogen‐plasma reductions, the powders do not contact the plasma directly.
Shukang Zhang +3 more
wiley +1 more source
Comparison of heat transfer in straight and corrugated minichannels with two-phase flow
EPJ Web of Conferences, 2014 Measurements of heat transfer rates performed with an experimental condensation heat exchanger are reported for a corrugated minichannel tube and for a straight minichannel tube. The two cases were compared at same flow regimes.
Peukert P., Hrubý J.
doaj +1 more source