ERROR:SQLSTATE[HY000]: General error: 20018 Invalid column name 'CodigoInstitucion'. [20018] (severity 16) [SELECT PublicObrasAutores.NumeroEmpleado, PublicObrasAutores.ApellidoPaterno, PublicObrasAutores.ApellidoMaterno, PublicObrasAutores.Nombre, PublicObrasAutores.NombreCompleto FROM PublicObrasAutores LEFT JOIN PublicObrasAutoresFil ON PublicObrasAutores.RefPublicacion = PublicObrasAutoresFil.RefPublicacion WHERE PublicObrasAutores.RefPublicacion = '615745' AND PublicObrasAutores.NumeroEmpleado IS NULL AND PublicObrasAutoresFil.CodigoInstitucion IS NOT NULL;]
®
ERROR:SQLSTATE[HY000]: General error: 20018 Invalid column name 'CodigoInstitucion'. [20018] (severity 16) [SELECT PublicObrasAutores.NumeroEmpleado, PublicObrasAutores.ApellidoPaterno, PublicObrasAutores.ApellidoMaterno, PublicObrasAutores.Nombre, PublicObrasAutores.NombreCompleto FROM PublicObrasAutores LEFT JOIN PublicObrasAutoresFil ON PublicObrasAutores.RefPublicacion = PublicObrasAutoresFil.RefPublicacion WHERE PublicObrasAutores.RefPublicacion = '615745' AND PublicObrasAutores.NumeroEmpleado IS NULL AND PublicObrasAutoresFil.CodigoInstitucion IS NULL;]
®
ERROR:SQLSTATE[HY000]: General error: 20018 Invalid column name 'Institucion'. [20018] (severity 16) [SELECT Institucion FROM PublicObrasAutoresFil WHERE RefPublicacion = '615745']
®
ERROR:SQLSTATE[HY000]: General error: 20018 Invalid column name 'Institucion'. [20018] (severity 16) [SELECT Institucion FROM PublicObrasAutoresFil WHERE RefPublicacion = 615745 AND InstitucionPropia = 'S'
UNION
SELECT Adscripciones.Entidad FROM PublicacionesObras
JOIN PublicObrasAutores ON PublicacionesObras.Identificador = PublicObrasAutores.RefPublicacion
JOIN Adscripciones ON PublicObrasAutores.NumeroEmpleado = Adscripciones.NumeroEmpleado
WHERE (PublicacionesObras.FechaPublicacion BETWEEN Adscripciones.FechaDesde AND Adscripciones.FechaHasta OR (PublicacionesObras.FechaPublicacion >= Adscripciones.FechaDesde AND Adscripciones.FechaHasta IS NULL)) AND PublicacionesObras.Identificador= 615745]
SIIA Público
SISTEMA INTEGRAL DE INFORMACIÓN ACADÉMICA - PÚBLICO
Título del libro: Ecos 2000 Título del capítulo: Optimal design of nonisothermal flat-plate solar collectors based on minimum entropy generation method
Entropy; Mathematical models; Optimization; Solar energy; Solar heating; Thermoanalysis; Air heating; Entropy generation number; Mass flow number; Solar air heater; Solar to thermal energy conversion; Thermoeconomic analysis; Thermoeconomic model; Solar collectors
Resumen:
A thermoeconomic analysis based on Second Law is presented. It combines the annualized total cost (investment, installation and operating costs) with entropy generation during the collection and thermal use of solar energy. This thermoeconomic model is developed to determine the annualized total cost for air heating in a solar air heater by means of dimensionless parameters like the Entropy Generation Number and the Mass Flow Number. With these dimensionless groups, a set of relations between optimum operation variables, physical characteristics and properties of construction materials of the heater, are established. The function incorporates the cost and quality of the product, the cost by solar-to-thermal energy conversion, and also considers the thermal energy quality through the Second Law Efficiency.
