Progetto SIMEA - Automatica - Università degli Studi di Padova

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SIMEA Stato dell’arte energetica degli edifici 1.2.40. SolArch Design tool for architects familiar with passive solar energy. It includes a thermal performance calculator, a design element checklist, and excel spreadsheets database with useful Solar Architecture parameters (e.g. thermal properties). Version 1.0 is in English and includes some sample data for the UK and Ireland. 1.2.40.1. Expertise Required Familiarity with solar architecture. 1.2.40.2. Users 74 Doc.No 20100610.SIMEA.MR.03 Versione 1 Several hundred around the world, primarily in Europe (UK/Ireland). 1.2.40.3. Audience Users familiar with solar architecture, e.g. architects / civil engineers, construction industry / building designers, government agencies, technical press and media, public utilities / energy supply industry, professional and trade associations, consultants, university faculty and students. 1.2.40.4. Input Thermal performance calculation basic data input - numerical, text, and graphical. 1.2.40.5. Output Building thermal performance parameters, graphics, excel spreadsheets: daylighting and passive solar design technologies from manufacturer/supplier database; ecological assessment of building materials; embodied energy / energy requirement for manufacturing and/or processing; daylighting checklist; recommended illuminances; address list from manufacturer/supplier database; thermal properties: surface and airspace resistance, materials (conductivity, etc.), radiative properties of materials, typical floor construction U-values, typical roof construction U-values, and typical wall construction U-values; and ventilation technologies from manufacturer/supplier database. 1.2.40.6. Computer Platform PC (Windows) 1.2.40.7. Programming Language N/A 1.2.40.8. Strengths Simple thermal performance calculation, thermal parameter database, manufacturer information. 1.2.40.9. Weaknesses Some data specific to UK/Ireland.
SIMEA Stato dell’arte energetica degli edifici 1.2.41. SUNREL 75 Doc.No 20100610.SIMEA.MR.03 Versione 1 SUNREL is an hourly building energy simulation program developed by NREL's Center for Building and Thermal Systems that aids in the design of small energy-efficient buildings where the loads are dominated by the dynamic interactions between the building's envelope, its environment, and its occupants. The program is based on fundamental models of physical behaviour and includes algorithms specifically for passive technologies, such as Trombe walls, programmable window shading, advanced glazing, natural ventilation, and rock bins. Conduction is calculated with a 1-D finite difference formulation; therefore, there is no practical limit on the thickness of walls or thermal capacitance. Interzone heat transfer by convection and radiation is handled by user defined heat transfer coefficients. External surface convection coefficients are user defined (or default) constants. Interior surface convection and radiation heat transfer is calculated using user defined (or default) constants. SUNREL has a simplified multizone nodal airflow algorithm that can be used to calculate infiltration and natural ventilation. Inputs for infiltration include the effective leakage area per zone and the estimated distribution of the leakage area over each wall. The natural ventilation inputs include the opening size, height, location, and operating temperature schedule. Wind pressure coefficients can be user defined or calculated from a simple correlation using wind speed and direction. Windows can be modeled with detailed optical properties and Uvalues or via data import from Window 4 or 5. Thermochromic windows can also be modeled if the optical data is available to create a Window model. SUNREL only models idealized HVAC equipment. The equipment and loads calculations are solved simultaneously, and the equipment capacities can be fixed by the user or set to always meet the load. Fans can be used to move a schedulable fixed amount of air between zones or from outside. SUNREL can read TMY, TMY2, BLAST, and SUNREL weather files. A graphical interface can be used to create and revise the text input files. The interface allows a single run or parametric runs for a single variable at a time. 1.2.41.1. Validation/Testing SUNREL and SERI-RES have both been extensively tested as part of the IEA Solar Heating and Cooling Programmeï¿½s efforts to validate building energy simulation software. The program will report if stability or convergence criteria are not maintained, and energy balances can be observed from output reports available to the user. 1.2.41.2. Expertise Required Knowledge of mechanical engineering, building heat transfer. 1.2.41.3. Users More than 100. Also the underlying engine for TREAT. 1.2.41.4. Audience Engineers, energy consultants, scientists, designers. 1.2.41.5. Input Thermophysical and optical properties of the building, simplified geometric description, and hourly weather data.
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Progetto SIMEA - Automatica - Università degli Studi di Padova

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