Videos by Julio Alfonso
Intro to book:
An analogy for a breaker hybrid high-voltage direct current (HVDC) system might... more Intro to book:
An analogy for a breaker hybrid high-voltage direct current (HVDC) system might be a pipeline that carries water from a distant source to a thirsty city. The HVDC system, like the pipeline, is a long-distance transmission system that carries a continuous flow of electricity from a generation source to a consumption point. The breaker hybrid aspect of the system is like a valve that can be opened or closed to control the flow of electricity, much like a valve controls the flow of water in a pipeline. The breaker hybrid system allows the operator to regulate the flow of electricity and protect the transmission system from damage or failure. #electricity #HVDC #BreakerHVDC #gridmodernization #gridstability #climatechange 3 views
Papers by Julio Alfonso
H A Z A R D O U S L O C AT I O N D ATA
El metodo grafico de Bergeron
https://bit.ly/3DhhqlR
La fisica NO esta para las paradojas, si lo está para las ANALOGIAS
Language and Cognitive Processes, 2000
The coefficient of contraction is a term used in fluid mechanics to describe the ratio of the are... more The coefficient of contraction is a term used in fluid mechanics to describe the ratio of the area of the fluid stream at the vena contracta (the point of maximum constriction) to the area of the orifice through which the fluid is flowing. It is denoted by the symbol “C_c.”
The coefficient of contraction can be expressed mathematically as:
C_c = A_c / A_0
where A_c is the area of the fluid stream at the vena contracta, and A_0 is the area of the orifice.
The coefficient of contraction is used to determine the actual flow rate of a fluid through a given orifice, which is typically less than the theoretical flow rate due to various losses in the system. These losses include frictional losses due to the viscosity of the fluid and losses due to the contraction of the fluid as it passes through the orifice.
The value of the coefficient of contraction depends on various factors, such as the shape and size of the orifice, the Reynolds number of the fluid, and the fluid properties such as viscosity and density. It is typically experimentally determined for a given system.
The “three reservoirs” problem is a classic problem in fluid dynamics that involves three interco... more The “three reservoirs” problem is a classic problem in fluid dynamics that involves three interconnected reservoirs. The problem asks how to determine the final water levels in each of the three reservoirs when they are initially filled to different heights.
The problem is usually presented with the following scenario: There are three reservoirs, labeled 1, 2, and 3, that are interconnected by pipes of different sizes, as shown in the figure below.
Water can flow between the reservoirs through the pipes, but only in the direction indicated by the arrows.
The question is: What will be the final water levels in each of the three reservoirs?
To solve the problem, one needs to use the principle of conservation of mass, which states that the total mass of fluid in a closed system remains constant. In this case, the closed system is the three reservoirs and the pipes connecting them.
Books by Julio Alfonso
UN, 1986
Tecnica analitica referente al Golpe de Ariete
Breaker Hybrid HVDC:
An analogy for a breaker hybrid high-voltage direct current (HVDC) system ... more Breaker Hybrid HVDC:
An analogy for a breaker hybrid high-voltage direct current (HVDC) system might be a pipeline that carries water from a distant source to a thirsty city. The HVDC system, like the pipeline, is a long-distance transmission system that carries a continuous flow of electricity from a generation source to a consumption point. The breaker hybrid aspect of the system is like a valve that can be opened or closed to control the flow of electricity, much like a valve controls the flow of water in a pipeline. The breaker hybrid system allows the operator to regulate the flow of electricity and protect the transmission system from damage or failure. #electricity #HVDC #BreakerHVDC #gridmodernization #gridstability #climatechange
Teaching Documents by Julio Alfonso
Reflector LED , 2024
Oferta exclusiva para Colombia
Refelector LED Clase I Division 2
KILLARK(HUBBELL)
PRODUCTO exclusivo para Colombia
Thesis Chapters by Julio Alfonso
TESIS, 2002
Esta fué mi tesis de grado para aspirar al título de Ingeniero Electricista, ayudado con los estu... more Esta fué mi tesis de grado para aspirar al título de Ingeniero Electricista, ayudado con los estudios que realicé en la Universidad Nacional de Colombia, y tomando una valiosa colaboración de un trabajo de investigación que realizó mi señor padre quien fué profesor también de esa Universidad.
Esta tesis de grado la sustenté junto con mi compañero de estudio William Camacho, quien también ayudó bastante.
Conference Presentations by Julio Alfonso
Book Reviews by Julio Alfonso
Uploads
Videos by Julio Alfonso
An analogy for a breaker hybrid high-voltage direct current (HVDC) system might be a pipeline that carries water from a distant source to a thirsty city. The HVDC system, like the pipeline, is a long-distance transmission system that carries a continuous flow of electricity from a generation source to a consumption point. The breaker hybrid aspect of the system is like a valve that can be opened or closed to control the flow of electricity, much like a valve controls the flow of water in a pipeline. The breaker hybrid system allows the operator to regulate the flow of electricity and protect the transmission system from damage or failure. #electricity #HVDC #BreakerHVDC #gridmodernization #gridstability #climatechange
Papers by Julio Alfonso
The coefficient of contraction can be expressed mathematically as:
C_c = A_c / A_0
where A_c is the area of the fluid stream at the vena contracta, and A_0 is the area of the orifice.
The coefficient of contraction is used to determine the actual flow rate of a fluid through a given orifice, which is typically less than the theoretical flow rate due to various losses in the system. These losses include frictional losses due to the viscosity of the fluid and losses due to the contraction of the fluid as it passes through the orifice.
The value of the coefficient of contraction depends on various factors, such as the shape and size of the orifice, the Reynolds number of the fluid, and the fluid properties such as viscosity and density. It is typically experimentally determined for a given system.
The problem is usually presented with the following scenario: There are three reservoirs, labeled 1, 2, and 3, that are interconnected by pipes of different sizes, as shown in the figure below.
Water can flow between the reservoirs through the pipes, but only in the direction indicated by the arrows.
The question is: What will be the final water levels in each of the three reservoirs?
To solve the problem, one needs to use the principle of conservation of mass, which states that the total mass of fluid in a closed system remains constant. In this case, the closed system is the three reservoirs and the pipes connecting them.
Books by Julio Alfonso
An analogy for a breaker hybrid high-voltage direct current (HVDC) system might be a pipeline that carries water from a distant source to a thirsty city. The HVDC system, like the pipeline, is a long-distance transmission system that carries a continuous flow of electricity from a generation source to a consumption point. The breaker hybrid aspect of the system is like a valve that can be opened or closed to control the flow of electricity, much like a valve controls the flow of water in a pipeline. The breaker hybrid system allows the operator to regulate the flow of electricity and protect the transmission system from damage or failure. #electricity #HVDC #BreakerHVDC #gridmodernization #gridstability #climatechange
Teaching Documents by Julio Alfonso
Thesis Chapters by Julio Alfonso
Esta tesis de grado la sustenté junto con mi compañero de estudio William Camacho, quien también ayudó bastante.
Conference Presentations by Julio Alfonso
Book Reviews by Julio Alfonso
An analogy for a breaker hybrid high-voltage direct current (HVDC) system might be a pipeline that carries water from a distant source to a thirsty city. The HVDC system, like the pipeline, is a long-distance transmission system that carries a continuous flow of electricity from a generation source to a consumption point. The breaker hybrid aspect of the system is like a valve that can be opened or closed to control the flow of electricity, much like a valve controls the flow of water in a pipeline. The breaker hybrid system allows the operator to regulate the flow of electricity and protect the transmission system from damage or failure. #electricity #HVDC #BreakerHVDC #gridmodernization #gridstability #climatechange
The coefficient of contraction can be expressed mathematically as:
C_c = A_c / A_0
where A_c is the area of the fluid stream at the vena contracta, and A_0 is the area of the orifice.
The coefficient of contraction is used to determine the actual flow rate of a fluid through a given orifice, which is typically less than the theoretical flow rate due to various losses in the system. These losses include frictional losses due to the viscosity of the fluid and losses due to the contraction of the fluid as it passes through the orifice.
The value of the coefficient of contraction depends on various factors, such as the shape and size of the orifice, the Reynolds number of the fluid, and the fluid properties such as viscosity and density. It is typically experimentally determined for a given system.
The problem is usually presented with the following scenario: There are three reservoirs, labeled 1, 2, and 3, that are interconnected by pipes of different sizes, as shown in the figure below.
Water can flow between the reservoirs through the pipes, but only in the direction indicated by the arrows.
The question is: What will be the final water levels in each of the three reservoirs?
To solve the problem, one needs to use the principle of conservation of mass, which states that the total mass of fluid in a closed system remains constant. In this case, the closed system is the three reservoirs and the pipes connecting them.
An analogy for a breaker hybrid high-voltage direct current (HVDC) system might be a pipeline that carries water from a distant source to a thirsty city. The HVDC system, like the pipeline, is a long-distance transmission system that carries a continuous flow of electricity from a generation source to a consumption point. The breaker hybrid aspect of the system is like a valve that can be opened or closed to control the flow of electricity, much like a valve controls the flow of water in a pipeline. The breaker hybrid system allows the operator to regulate the flow of electricity and protect the transmission system from damage or failure. #electricity #HVDC #BreakerHVDC #gridmodernization #gridstability #climatechange
Esta tesis de grado la sustenté junto con mi compañero de estudio William Camacho, quien también ayudó bastante.