Initial Design. The initial design of the SD-CPRT was derived with ADT’s TURBOdesign suite at prototype scale. Figure 1 shows the two runners 3D geometry. Note that Rotor1 has 8 runner blades and Rotor2 has 7 runner blades. Figure 1 : Geometry of Rotor 1 and Rotor 2 Table 1summarises the input data to TURBOdesign in order to generate the blade profiles depicted at Figure 1. A constant work coefficient is specified at the trailing and leading edges of the runners, and a constant thickness of 60 mm is used. As can been seen in Table 1, the design flow rate is 130 𝑚3/𝑠 in pump mode and the two runners rotate in opposite directions. The second runner rotates at 90 % of the speed of the first runner. Meanline Design Details Shaft Driven Flow rate [m3/s] 130 Rotor1 speed [rev/min] 50 Rotor2 speed [rev/min] 45 Hub Diameter [mm] 3502 Shroud Diameter [mm] 6064 Maximum rotor1 axial span [mm] 773 Maximum rotor2 axial span [mm] 1220 Minimum axial gap between rotors [mm] 200 Table 1 : Main parameters from TURBOdesign Pre
2.1 Performance, CFD
a) Efficiency b) Head c) Power Figure 2 : Efficiency, head, and power as a function of volumetric flow rate in pump mode for the initial design of the SD-CRPT Figure 3shows the corresponding efficiency, flow rate, and power, in turbine mode displayed as a function of total-to-static head. The results indicate a relatively high efficiency over a head range of 8- 16 m but efficiency drops very rapidly below 8 m head. The volumetric flow rate and power depicted show that both the power and flow rate increase linearly with the increase of head.
a) Efficiency b) Volumetric flow rate c) Power Figure 3 : Efficiency, volumetric flow rate, and power as a function of total-to-static head in turbine mode for the initial design of the SD-CRPT
Initial Design. 1. As soon as possible following the execution of this Agreement, the Developer and the City will convene a meeting with the Development Team Members (as defined below) and the City personnel who will be principally engaged in the Project for an initial meeting to discuss the assignment of tasks and deadlines, to discuss the design requirements for the New City Hall in accordance with the criteria set forth below for review and approval by the City, and for such other purposes as may be appropriate for the Commencement (as defined in the following sentence) of the Project. For purposes of this Agreement, “Commence” and “Commencement” mean the Developer, or a builder with which it has contracted (a “Builder”) has staged land disturbing equipment onsite and has begun clearing and grading of the site pursuant to an approved site plan and issued permit and, for Building B, the foundation has been poured.
Initial Design. ADT’s TURBOdesign suite [1] was used to create the initial design of the Shaft-Driven Counter-Rotating Pump-Turbine (SD-CRPT) in prototype scale. The software uses a 3D inverse design method [2], [3], [4] to design the blade shape for a given distribution of blade loading (pressure jump across the blade). It can be used for axial, mixed flow or centrifugal configurations and can easily handle contra-rotating stages. The target design for TURBOdesign was a machine with a power of 10 MW in turbine mode and a head of 9 m at the Best Efficiency Point (BEP). Initially a meanline sizing code TURBOdesign Pre was used to generate the initial flow path (hub and shroud diameter and chord distribution of the first and second rotor) based on specification of flow rate, rpm and head of 9 m. The resulting flow path was then used in the inverse design method with appropriate choice of blade loading to generate the first and second rotor 3D blade geometries. The performance of the initial stage was then verified by full 3D steady RANS computations which confirmed that the design meets the required head and power levels at reasonably high level of efficiency.
Initial Design. Generator shall deliver to Customer a design setting forth a general description of the System, including the array layout, equipment specifications, equipment location, metering equipment, roof modifications (if necessary), and integration of the System with the building’s existing fixtures and Existing Electrical System (hereinafter “Initial Design”).
Initial Design. 4.8.1 The tenant’s architect shall prepare a plan of the proposed partitioning and shall carry out initial coordination with the consultants.
4.8.2 The tenant’s architect shall be responsible for receiving approval for the initial design from the building architect, in writing; and if requested by the project manager, from the safety consultant and any other relevant consultant. These approvals are intended only to ensure that the design will not affect the building and its safety arrangements. The approvals are for continuation of the design only.
4.8.3 The tenant’s architect is responsible for obtaining approval from the fire service or the safety consultant of the building before preparing the detailed design. The tenant’s architect is responsible for receiving the approval.
Initial Design. ADT’s TURBOdesign suite was used to derive the initial design of the Rim-Driven Counter-Rotating Pump-Turbine (RD-CRPT) in prototype scale. The software uses a meanline code for initial sizing and then a 3D inverse inviscid inverse design method to design the 3D blade shape for a given distribution of blade loading (proportional to static pressure jump across the blade). The target design for TURBOdesign was a machine with a power of 10 MW in turbine mode and a head of 9 m at the Best Efficiency Point (BEP). Initially a meanline sizing code TURBOdesign Pre was used to generate the initial flow path (hub and shroud diameter and chord distribution of the first and second rotor) based on specification of flow rate, rpm and head of 9 m. The resulting flow path was then use in the inverse design method with appropriate choice of blade loading to generate the first and second rotor 3D blade geometries.
Initial Design. CONSULTANT shall complete the preliminary design of the PROJECT for the alignment of the interceptor shown in Exhibit B-1. The initial design shall consist of two parts: Site Investigation and Initial Design (30 Percent Complete).
Initial Design. Final Design (60% complete).
Initial Design. Lessee’s are required to obtain Authority approval in advance for its Kiosk conceptual design and layout of fixtures, props, signage, etc. Kiosks shall meet any applicable Tenant Design Standards for the terminal building.
Initial Design. Seller shall require the initial design of each Dedicated Unit to have an expected Summer Condition Standard Capacity of no less than 230 MW.
