SYSTEM MODELING. The goal of this task is to produce detailed physical models of the heat pump system and its components. The Recipient shall: • Develop analytical and numerical models of the physics of system operation at varying levels of fidelity describing: o The thermodynamic state of the working fluid throughout the cycle o The heat transfer behavior of the working gas and/or piston liquid in the heat input/output and regeneration regions of the system o The fluid dynamic behavior of the working gas and piston liquid o The kinematics and dynamics of the piston subsystem o The behavior of the electrical motor and power electronics subsystem o Energy and exergy losses for the system • Prepare a Modeling Report that discusses all the above elements, including changes and improvements, if needed, and impact on the project. The Modeling Report should not include the detail of technical information that would inadvertently disclose Intellectual Property prematurely (e.g., prior to the preparation of patent applications). • Prepare a CPR Report #1 in accordance with subtask 1.2. Product: • Modeling Report (draft and final) • CPR Report #1 (draft and final)
SYSTEM MODELING. Simulation programs have been used to increase the accuracy and reduce the time required for calculations of many of the design parameters required. TABLE 7-1. ARCHITECTURAL SIMULATION PROGRAMS USED Type of Simulation Program Name of Program(s) Used Concept Design Sketchup, Adobe Photoshop, Illustrator BIM Revit 2016 Energy Modeling N/A Daylighting N/A 7.2 Fire Ratings Construction Type: IBC 2009, Construction Type 2B TABLE 7-2. REQUIRED HOURS OF FIRE RESISTANCE Component Required Hours of Fire Resistance Columns 0 Columns Supporting Roofs Only 0 Beams - Structural Frame 0 Beams - Secondary Members 0 Beams Supporting Roofs Only 0 Floor Construction 0 Roof Construction 0 7.3 Envelope System Selection TABLE 7-3. REASONING FOR SELECTION OF BUILDING COMPONENTS System Selection Criteria Maintenance (High/Medium/Low) Roof TPO membrane 1/2" cover board 6” polyisocyanurate roof insulation (R=33) Low Opaque Walls Masonry cavity walls: 4” face brick (w/ graffiti coating) 2-1/2" polyiso insulation Fluid-applied air/vapor barrier Reinforced concrete masonry unit (CMU) bearing wall Minimum 8’ high anti-graffiti coating (or as needed for masonry coursing) Low Metal Framed wall: Composite metal wall panel Weather barrier over plywood faced polyiso insulation (3”, R16.5) A/V barrier over 5/8” exterior sheathing Cold-formed metal framing Glazing System (framing system) BOD Manufacturer: EFCO 406 Aluminum frame storefront system, thermally broken, non operable, anodized finish (6 ½” deep) Low Opaque Glazing 1” insulated units Spandrel: Ceramic-coated glazing PPG Low Vision Glazing 1” insulated units BOD: Solarban R-100 by PPG Window Sizes: Standard and masonry unit opening, keep above floor to accommodate casework Security: Laminated glazing by PPG Laminated glazing at all entry access points, including interior vestibule doors (for security) Low Exterior Doors Entrances: Thermally-broken aluminum- framed storefront system with insulated glazing, medium style door, outside glazed, BOD: EFCO 406 Entrances: Low Support Area Doors: Thermally broken heavy gage hollow metal frames w/ insulated hollow metal doors, CD investigating fiberglass alternatives Support Area: Medium TABLE 7-4. SLAB ON GRADE SELECTION Minimum Energy Code R Value1 Project R Value Perimeter Insulation IECC 2015: R-10 for 24” below R=10 1 Enter minimum R-value per ASHRAE 90.1 (or relevant energy standard). These values will be used for default system design until actual values are determined. TABLE 7-5. BELO...
SYSTEM MODELING. Simulation programs have been used to increase the accuracy and reduce the time required for calculations of many of the design parameters required. Assumptions needed for the simulations are documented herein. TABLE 9-1. ELECTRICAL SYSTEM SIMULATION PROGRAMS USED Type of Simulation Program Name of Program(s) Used Interior Lighting Software AGI Exterior Lighting Software AGI Power Systems Studies (load flow, short circuit, voltage drop) SKM Power Systems Studies (coordination, arc flash) SKM Generator Sizing SKM & Manufacturer's Program
SYSTEM MODELING. System modeling is a practice to illustrate the details of a system’s architecture. The Unified Modeling Language (UML) is described as the “lingua franca” of communicating software systems (Xxxxx & Selic, 2003) and utilized by others designing GUIs for NTD global management (Oluwagbemi & Oladunni, 2010). UML graphically displays how components of the system interact with one another and allow for clearer exchange for multifarious stakeholders. This thesis utilizes a Use Case diagram (Figure 3), which has been widely referenced as one of the most effective tools to describe the actions that occur when using a device (Xxxxxxxxx & Xxxxxxxx, 2007). Additionally, a Sequence Diagram (Figure 4) is included as this graphic relays valuable information regarding a computer program’s chronological order of events (Pickin & Jézéquel, 2004). These UML graphics assist in displaying the code and mechanisms functioning beneath the gloss of the user-interface.
