ESA Open Invitation To Tender AO8953
Open Date: 10/03/2017
Closing Date: 11/04/2017 13:00:00

Status: ISSUED
Reference Nr.: 17.139.01
Prog. Ref.: ISS Fl.Ph.Sub-ELIPS4
Budget Ref.: E/0146-01D – ISS Fl.Ph.Sub-ELIPS4
Special Prov.: AT+BE+CH+CZ+DE+DK+FR+GB+IE+IT+NL+NO+RO+SE+CA
Tender Type: C
Price Range: KEURO
Products: Ground Segment / Development and Construction of Space Segment / General Support / Other
Techology Domains: Others
Establishment: ESTEC
Department: Development Department
Contract Officer: Graziano, Patrizio
Industrial Policy Measure: N/A – Not apply
Last Update Date: 10/03/2017
Update Reason: Tender issue

The Pulsating Heat Pipes (PHP) experiment intends to study thermally driven two-phase passive devices mainly based on phase change phenomena (i.e. film evaporation, flow boiling, film condensation) and capillary forces, even if also gravity plays an important role. Conceptually, PHPs consist of a meandering capillary tube closed in a loop, evacuated and partially filled with a working fluid. Once the heat load is applied, the fluid motion starts and an oscillating pattern of alternating vapour bubbles and liquid plugs forms inside the tube. The experimental outcomes of the present study will help to develop more realistic theoretical models and improve existing numerical codes towards improved PHP design tools.The facility foreseen to host the Drop Evaporation Experiment Unit will be the European Drawer Rack 2 (EDR2). Main goal of the phase A/B1 study is to complete the System Requirement Review (SRR).In theframe of this procurement, prior to issuing the ITT, the Agency intends to issue an ESR Consultation on the list of open ITTs. The purpose of this consultation is to collect comments and questions from industry concerning the Experiment Scientific Requirements (ESR) and other documents applicable to this activity. These comments and questions can be answered during the period that the ESR Consultation is open and/or at a Briefing meeting to be organised at the end of the consultation period. After the closure of the consultation, the Agency may decide to update the ESR(s). In any case, the final requirements applicable will be those published at the time of issuing the ITT.

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