Italy – Machines and apparatus for testing and measuring – AVVISO DI CONSULTAZIONE PRELIMINARE DI MERCATO AI SENSI DELL'ART. 77 DEL D. LGS. 36/2023 PER LAFFIDAMENTO DELLAPPALTO DI FORNITURA DI UNA GALLERIA DEL VENTO DI GRANDE SEZIONE CON CONTROLLO NON STAZIONARIO DEL FLUSSO CUP B83C23001590001 CUI F80209930587202400054

공고 내용 (원문)

The system to be acquired must generate different types of flows, allow the acquisition of related data, and analyze them. Therefore, the system must features a modular and scalable fan-matrix architecture, enabling the simulation of spatially and temporally variable velocity profiles through the adjustment of the individual fans. In terms of general configuration, the wind tunnel must be composed of a series of independent blocks, each with its own load-bearing structure, mounted on wheels, and equipped with quick-connect couplings to allow rapid assembly or reconfiguration to achieve the desired test configuration. Specifically, the system must include: Ventilation wall: must be composed of ventilation modules containing small counter-rotating fans that allow precise local adjustment. Flow straightener, for turbulence reduction and flow velocity profile uniformization. Two interchangeable test sections consisting of a convergent section + test section with transparent walls and lower slots to facilitate observation and visual inspection, as well as to allow the insertion of instrumentation. Divergent section divisible into multiple sections. In its maximum footprint configuration, the system must have a maximum length of 10 meters and a maximum width of 2 meters. The system must be equipped with advanced measuring instrumentation and integrated software to automate tests and create real-time control cycles. The specific required characteristics for the individual parts of the system are: Modular ventilation wall with counter-rotating fans, designed to allow precise local flow adjustment. The total power of the fan wall must be approximately 40 kW; Flow straightener, equipped with cleaning channels; Two interchangeable test sections composed of: a. Configuration 1: Convergent 1 with a contraction ratio of 1.87 paired with Test Section 1, with a maximum length of 2 meters. b. Configuration 2: Convergent 2 with a contraction ratio of 6.7 paired with Test Section 2, w