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Analysis of sub-atmospheric pressures during emptying of an Irregular pipeline without an air valve using a 2D CFD model
(2021-09-15)
Studying sub-atmospheric pressure patterns in emptying pipeline systems is crucial because these processes could cause collapses depending on the installation conditions (the underground pipe covering height, type, fill, ...
Assessing and forecasting method of financial efficiency in a free industrial economic zone
(2021-06-11)
: Industrial free zones are key to the economic progress of developing countries, making the evaluation and forecast of efficiency in these organisations relevant. This research proposes a three-phase method to evaluate ...
Estimation of PQ distance dispersion for atrial fibrillation detection
(2021-05-03)
Background and objective: Atrial fibrillation (AF) is the most common cardiac arrhythmia in the world. It is
associated with significantly increased morbidity and mortality. Diagnosis of the disease can be based on
the ...
Factors that affect quality of work life of the millennials linked to the commercial sector in Colombia
(2021-05-01)
The present investigation has two aims: (1) to empirically examine the factors that affect QWL among
the millennials working in the commercial sector in Colombia and (2) to investigate the role of a set of
individual ...
Prediction of motorcyclist traffic crashes in Cartagena (Colombia): development of a safety performance function
(2021-04-05)
Motorcyclists account for more than 380 000 deaths annually worldwide from road tra c accidents. Motorcyclists are the most vulnerable road users worldwide to road safety (28% of global fatalities), together with cyclists ...
Conventional and advanced exergoeconomic indicators of a nitric acid production plant concerning the cooling temperature in compression Train’s intermediate stages
(2021-07-30)
In the refining and petrochemical industrial sector, large amounts of energy are used, so using the concept of exergy allows a rational use of this resource. In the different exergy and exergoeconomics studies applied in ...
2D CFD Modeling of Rapid Water Filling with Air Valves Using OpenFOAM
(2021-11-04)
The rapid filling process in pressurized pipelines has been extensively studied using mathematical models. On the other hand, the application of computational fluid dynamics models has emerged during the last decade, which ...
Assessment of Steady and Unsteady Friction Models in the Draining Processes of Hydraulic Installations
(2021-07-08)
The study of draining processes without admitting air has been conducted using only steady friction formulations in the implementation of governing equations. However, this hydraulic event involves transitions from laminar ...
Optimal Economic–Environmental Operation of BESS in AC Distribution Systems: A Convex Multi-Objective Formulation
(2021-12-10)
This paper deals with the multi-objective operation of battery energy storage systems
(BESS) in AC distribution systems using a convex reformulation. The objective functions are CO2
emissions, and the costs of the daily ...
A quadratic convex approximation for optimal operation of battery energy storage systems in DC distribution networks
(2021-11-07)
This paper proposes a quadratic convex model for optimal operation of battery energy storage systems in a direct current (DC) network that approximates the original nonlinear non-convex one. The proposed quadratic convex ...
Universidad Tecnológica de Bolívar - 2017 Institución de Educación Superior sujeta a inspección y vigilancia por el Ministerio de Educación Nacional. Resolución No 961 del 26 de octubre de 1970 a través de la cual la Gobernación de Bolívar otorga la Personería Jurídica a la Universidad Tecnológica de Bolívar.