Progetto SIMEA - Automatica - Università degli Studi di Padova

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SIMEA Stato dell’arte energetica degli edifici 1.2.42.6. Computer Platform Windows XP/Vista. 1.2.42.7. Programming Language C++ 1.2.42.8. Strengths Excellent responsive and accurate tool for concept development. 1.2.42.9. Weaknesses Not intended for detailed services layout design. 78 Doc.No 20100610.SIMEA.MR.03 Versione 1
SIMEA Stato dell’arte energetica degli edifici 1.2.43. TRACE 700 79 Doc.No 20100610.SIMEA.MR.03 Versione 1 Trane's TRACE 700 software - the latest version of Trane Air Conditioning Economics - brings the algorithms recommended by the American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) to the familiar Windows operating environment. Use it to assess the energy and economic impacts of building-related selections such as architectural features, comfort-system design, HVAC equipment selections, operating schedules, and financial options. The TRACE 700 is divided into four distinct calculation phases: Design, System, Equipment and Economics. The user can choose from several different load methodologies: TETD, CLTD/CLF, ASHRAE RTS, and others. During the Design Phase the program first calculates building heat gains for each month based on the building geometry, schedules of use, infiltration and ventilation. The heat gain profile is then converted into a cooling load profile which accounts for the thermal time lag characteristics of the building and peak loads. The program next performs a psychrometric analysis to determine the desired cooling and heating supply air temperatures. Then the load and psychrometric calculations are repeated to more accurately account for the hourly plenum temperature's affect on the space and coil loads. Finally, the program sizes all coils and air handlers based on these maximum loads and the psychrometrically determined values of supply air dry bulb. During the System Phase, the dynamic response of the building is simulated for an 8760-hour (or reduced) year by combining room load profiles with the characteristics of the selected airside system to predict the load imposed on the equipment. The program will track the wet and dry bulb condition of air as it travels through the building either gaining or releasing heat along the way. In addition to energy recovery, both indirect and direct dehumidification strategies can be simulated to predict the humidity levels in every room of the building. The Equipment Phase uses the hourly coil loads from the System Phase to determine how the cooling, heating, and air moving equipment will consume energy. In addition, the cooling equipment also takes into account the effect of the ambient dry and wet bulb temperatures upon equipment performance. The Economic Phase combines economic input supplied by the user with the energy usage from the Equipment Phase to calculate each alternative's utility cost, installed cost, maintenance cost and life cycle cost. From the economic parameters input, a detailed life cycle analysis is performed for each alternative and comparisons made between the alternatives. 1.2.43.1. Validation/Testing The software is tested according to ASHRAE Standard 140. Results have been posted on the program website. 1.2.43.2. Expertise Required General knowledge of HVAC engineering principles, building geometry, and the Microsoft Windows operating system 1.2.43.3. Users Approximately 1,200 worldwide, including single and site/LAN licenses
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Progetto SIMEA - Automatica - Università degli Studi di Padova

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