THE ROOFS OF HOUSES LOCATED AT MIDDLE LATITUDES RECEIVE SIGNIFICANT SOLAR RADIATION USEFUL TO SUPPLY THEIR OWN ENERGY DEMANDS AND TO FEED BACK INTO THE URBAN ELECTRICITY NETWORK. HOWEVER, SOLAR PANELS SHOULD BE PROPERLY INTEGRATED INTO ROOFS. THIS STUDY ANALYZED ROOF GEOMETRY AND INTEGRATED SOLAR PERFORMANCE OF PHOTOVOLTAIC, THERMAL-PHOTOVOLTAIC, AND HYBRID SOLAR COLLECTION TECHNOLOGIES ON DWELLING CASES SELECTED FROM A SAMPLE OF RECENT HOUSING DEVELOPMENTS IN CONCEPCIÓN, CHILE. HOUR-BY-HOUR ENERGY GENERATION ESTIMATES AND COMPARISONS WITH DEMAND LEVELS WERE CALCULATED FOR REPRESENTATIVE DAYS DURING SEASONS OF MAXIMUM, MINIMUM AS WELL AS MID-SEASON. THESE ESTIMATES TOOK INTO ACCOUNT THE ROOF TILT AND ORIENTATION EFFECTS ALSO. TRNSYS@ SOFTWARE WAS USED TO DETERMINE ELECTRICITY SUPPLY AND F-CHART TOOL FOR THERMAL ENERGY SUPPLY. THE RESULTS SHOW FIVE TIMES MORE PANELS CAN BE PLACED ON THE LARGEST AND MOST REGULAR SHAPED ROOF SECTIONS THAN ON THOSE WITH THE SMALLEST AND MOST IRREGULAR SHAPES. THE HOUSE MODEL WITH THE LARGEST ROOF SECTION CAN PROVIDE UP TO SIX TIMES MORE ENERGY THAN THE MODEL WITH THE SMALLEST SECOND ROOF SECTION IN DIFFERENT SEASONS AND SYSTEMS. THIS PAPER THUS PROVIDES NEW FINDINGS ON THE PERFORMANCE OF SOLAR TECHNOLOGIES WHEN RELATED TO HOME ENERGY DEMANDS AND ROOF GEOMETRY.

SE REVISA LA INTEGRACIÓN ARQUITECTÓNICA DE SISTEMAS DE ENERGÍA SOLAR ACTIVA (COLECTORES HÍBRIDOS CON AIRE) EN TECHUMBRES DE VIVIENDAS UNIFAMILIARES RECIENTES EN CONCEPCIÓN, CHILE, DETERMINANDO LA INFLUENCIA DE LA COMPOSICIÓN VOLUMÉTRICA DE FALDONES CAPTADORES. SE DESCIFRA LA INCIDENCIA DE ORIENTACIÓN E INCLINACIÓN RESPECTO A TRAYECTORIA SOLAR, CONSIDERANDO QUE SI BIEN ES RECOMENDABLE ENFRENTAR AL ECUADOR, PERMITE DESVIACIONES IMPORTANTES (HASTA DE 50º E INCLUSO EN 90º EN AZIMUT, DEPENDIENDO DE INCLINACIÓN). SE CONCLUYE QUE, LA IRRADIACIÓN RECOLECTADA EN INVIERNO, SATISFACE ENTRE 73% Y 39% DE LA DEMANDA DOMÉSTICA TOTAL CON IRRADIACIÓN PRESENTE EN FALDONES PROMEDIO DE ALA DE MAYOR DIMENSIÓN (EN ADELANTE, AMD) Y SEGUNDA ALA DE MAYOR DIMENSIÓN (EN ADELANTE, SAMD). LUEGO SE ESTUDIA LA POSIBLE IMPLEMENTACIÓN COLECTORES HÍBRIDOS TÉRMICOS FOTOVOLTAICOS CON FLUIDO AIRE (EN ADELANTE, BIPVTA) EN CASOS EXTREMOS DE CAPACIDAD POR TAMAÑO Y GEOMETRÍA DE LOS FALDONES. EN LA TECHUMBRE DE MAYOR CAPACIDAD EL ABASTECIMIENTO ALCANZA EL 585% DE LA DEMANDA ELÉCTRICA EN VERANO Y 41% EN INVIERNO. CONTRARIAMENTE, LA CONFIGURACIÓN MENOS FAVORABLE EN DÍA PROMEDIO DE VERANO, ABASTECE EL 185% DE LA DEMANDA ELÉCTRICA Y EN INVIERNO SE PREVÉ SOLO UN 10%. SE ENCUENTRA FINALMENTE QUE UNA VIVIENDA CON COSTADOS EXTENSOS, PROMUEVEN FALDONES MÁS AMPLIOS Y APTOS PARA CAPTACIÓN SOLAR ACTIVA

IN 2019, CHILE GENERATED 20 MILLION TONS OF WASTE, 79% OF WHICH WAS NOT PROPERLY DISPOSED OF, THEREBY PROVIDING AN ATTRACTIVE OPPORTUNITY FOR ENERGY GENERATION IN ADVANCED THERMOCHEMICAL CONVERSION PROCESSES. THIS STUDY PRESENTS A TECHNO-ECONOMIC AND ENVIRONMENTAL ASSESSMENT OF THE IMPLEMENTATION OF WASTE-INTEGRATED GASIFIER-GAS TURBINE COMBINED CYCLE (WIG-GTCC) TECHNOLOGY AS AN ALTERNATIVE FOR MUNICIPAL SOLID WASTE (MSW) TREATMENT. THE STUDIED CASE ASSESSES THE CONVERSION OF 14.61 T·H?1 OF MSW, WHICH PRODUCES A COMBUSTIBLE GAS WITH A FLOW RATE OF 34.2 T·H?1 AND LHV OF 5900 KJ·KG?1, WHICH, IN TURN, IS USED IN A COMBINED CYCLE TO GENERATE 19.58 MW OF ELECTRICAL POWER. THE PROPOSED ECONOMIC ASSESSMENT OF THE TECHNOLOGY USES THE ENERGY GENERATION PROCESSES AS A REFERENCE, FOLLOWED BY A MODEL FOR AN OVERALL ECONOMIC EVALUATION. THE RESULTS HAVE SHOWN THAT THE PROFIT COULD BE UP TO USD 24.1 MILLION, AND THE RECOVERY OF INVESTMENT BETWEEN 12 AND 17 YEARS WOULD IMPROVE THE ENVIRONMENTAL IMPACTS OF THE CURRENT DISPOSAL TECHNOLOGY. THE WIG-GTCC HAS THE MOST EFFICIENT CONVERSION ROUTE, EMITTING 0.285 KG CO2 EQ/KWH, WHICH REPRESENTS 48.21% OF THE POTENTIAL YIELD OF GLOBAL WARMING OVER 100 YEARS (GWP100) OF INCINERATION AND 58.51% OF THE GWP100 OF THE STANDARD GASIFICATION METHOD. THE WIG-GTCC WOULD ENABLE THE ENERGETIC VALORIZATION OF MSW IN CHILE, ELIMINATE PROBLEMS ASSOCIATED WITH LANDFILL DISPOSAL, AND INCREASE OPPORTUNITIES FOR DECENTRALIZED ELECTRICITY GENERATION.