Technical and economic analysis of using optimized refrigeration cycle instead of open loop cooling system

N Van Nguyen, V Pirouzfar - International Journal of Energy and Water …, 2024 - Springer
A major problem in the open cooling systems is high make-up water consumption. The
purpose of this research work is to use of the optimized refrigeration cycle (close loop) and …

Hydrodynamically and thermally developing laminar flow in spiral coil tubes

Z Altaç, Ö Altun - International journal of thermal sciences, 2014 - Elsevier
In this study, steady state combined developing flow and heat transfer in spiral tube coils is
numerically investigated. The spiral coil is isothermal and the fluid flow is laminar. The spiral …

Laminar heat transfer performance of power law fluids in coiled square tube with various configurations

JC Kurnia, AP Sasmito, AS Mujumdar - International Communications in …, 2014 - Elsevier
This study addresses heat transfer performance of laminar non-Newtonian fluid flow in
various configurations of coiled square tubes eg, in-plane spiral ducts, helical spiral ducts …

Heat transfer coefficients for evaporator with nested helical coils

N Demesa, A Huicochea, JA Hernandez… - International Journal of …, 2017 - Elsevier
The evaporation processes at low temperatures are essential for the factories and thermal
systems as the heat pumps by absorption. This paper shows the design, building and …

Numerical and experimental investigation of heat transfer in the spiral coiled tubes: Correlation development for Nusselt number and friction coefficient calculation

S Farhadi, Y Shekari, H Ansari - International Communications in Heat and …, 2024 - Elsevier
In this paper, we present a comprehensive study on the heat transfer in the spiral coiled
tubes, employing both numerical simulations and experimental analysis. The investigation …

Investigation of flow boiling heat transfer inside small diameter helically coiled tubes

AM Elsayed, RK Al-Dadah, S Mahmoud… - International journal of …, 2012 - Elsevier
This paper experimentally investigates the effects of tube and coil diameters on flow boiling
heat transfer coefficients inside small diameter (< 3 mm) helically coiled tubes. Four different …

Laminar convective heat transfer for in-plane spiral coils of noncircular cross sections ducts: A computational fluid dynamics study

JC Kurnia, AP Sasmito, AS Mujumdar - Thermal science, 2012 - doiserbia.nb.rs
The objective of this study was to carry out a parametric study of laminar flow and heat
transfer characteristics of coils made of tubes of several different cross-sections eg square …

Heat transfer in helically coiled small diameter tubes for miniature cooling systems

AM Elsayed - 2011 - etheses.bham.ac.uk
This thesis describes experimental and theoretical investigation on the use of small diameter
helically coiled tubes for the evaporator of miniature refrigeration systems. A detailed review …

Investigation on the energy and exergy efficiencies of a domestic refrigerator retrofitted with water-cooled condensers of shell-and-coil and brazed-plate heat …

PS Raveendran, SJ Sekhar - Journal of Thermal Analysis and Calorimetry, 2019 - Springer
Domestic refrigerator is one of the major energy-consuming appliances, and the
enhancement of its energy efficiency plays a vital role in implementing the energy …

Experimental investigation of the convective heat transfer in a spirally coiled corrugated tube with radiant heating

M Đorđević, V Stefanović, M Vukić… - Facta Universitatis …, 2017 - casopisi.junis.ni.ac.rs
The Archimedean spiral coil made of a transversely corrugated tube was exposed to radiant
heating in order to represent a heat absorber of the parabolic dish solar concentrator. The …