Calcular el incremento de temperatura en un proceso de calefacción de un colector solar // Calculate the temperature increase of a solar collector heating process

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¡Saludos amigos de la plataforma Hive!

gif-colector solar.gif

Es un placer para mi poder aportar mas conocimientos y compartirlos con todos los usuarios y comunidades que hacen vida en esta importante plataforma, a continuación comparto con todos ustedes acerca de los cálculos que son necesarios al momento de enfrontar un diseño de colector solar o dispositivo el cual esta diseñado para recibir la energía que nos transmite el sol, la función principal del colector es transformar la energía solar en energía eléctrica.

En esta ocasión les presento un ejemplo en el que mediante un ejercicio se pretende calcular el incremento de temperatura que ocurre en un proceso del calentamiento de cierta cantidad de agua que tiene un rendimiento en ese proceso de 6 litros/minuto.

Enunciado del ejercicio

Un colector solar plano que tiene una superficie de 4 metros cuadrados debe calentar agua para uso domestico sabiendo que el coeficiente de radiación solar (k) es igual a 0,9 calorías/minuto x centímetros cuadrados y el consumo de agua es constante a razón de 6 Litros/minuto, determinar:

  • El aumento de temperatura del agua si esta funcionando durante 2 horas. Se supone que inicialmente el agua esta a 18 grados celsius y que no hay perdidas de calor.

  • Para este ejercicio se debe considerar una constante de consumo energético (ce) que es igual a 1 calorías/gramo x ºc.

Para la solución de este ejercicio los invito a la visualización del siguiente recurso audiovisual:

Ver en Youtube por @sandracarrascal

Referencias recomendadas

Dispositivo colector solar

Qué es un colector solar


English

Greetings friends of the Hive platform!

gif-colector solar.gif

It is a pleasure for me to bring more knowledge and share it with all users and communities that make life on this important platform, then I share with all of you about the calculations that are necessary when facing a solar collector design or device which is designed to receive the energy transmitted by the sun, the main function of the collector is to transform solar energy into electricity.

This time I present an example in which an exercise is intended to calculate the temperature increase that occurs in a process of heating a certain amount of water that has a yield in that process of 6 liters / minute.

Exercise statement

A flat solar collector that has an area of 4 square meters should heat water for domestic use knowing that the solar radiation coefficient (k) is equal to 0.9 calories/minute x square centimeters and the water consumption is constant at a rate of 6 liters/minute, determine:

  • The increase in temperature of the water if it is running for 2 hours. It is assumed that initially the water is at 18 degrees Celsius and that there is no heat loss.

  • For this exercise a constant energy consumption (EC) should be considered which is equal to 1 calorie/gram x ºc.

For the solution of this exercise I invite you to visualize the following audiovisual resource:



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