International Journal of Thermofluids, 2022 Airborne molecular contamination (AMC) is one of the main causes of chip products defects during manufacturing. The downward moist air flow originated from the fan filter unit (FFU) inside the mini-environment (ME) can penetrate into the front opening ...
David Benalcazar +6 more
doaj +1 more source
Investigation of gas purging and cold storage impact on PEM fuel cell system performance for aeronautical applications [PDF]
E3S Web of Conferences, 2022 Durability of proton exchange membrane fuel cell systems under cold weather conditions is essential and a critical challenge for transportation applications.
Montaner Ríos Gema +4 more
doaj +1 more source
Flow characteristics and velocity fields of a front opening unified pod at open door condition
Case Studies in Thermal Engineering, 2020 Particle contamination decreases product quality in semiconductor industries. Nowadays, the size of the chips and features has significantly reduced; thus increasing the importance of moisture removal from front opening unified pods during manufacturing ...
Tee Lin +6 more
doaj +1 more source
Flow and Ingestion in a Turbine Disc Cavity under Rotationally-Dominated Conditions
International Journal of Turbomachinery, Propulsion and Power, 2021 An investigation of hot gas ingestion driven by the disc pumping effect in a chute seal was conducted at the Oxford Rotor Facility. Measurements of mean pressure, unsteady pressure and gas concentration have been logged and analysed under different ...
Anna Bru Revert +2 more
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Effect of Ingress on Flow and Heat Transfer Upstream and Downstream of a Rotating Turbine Disc
Aerospace, 2019 Ingress is the penetration of a hot mainstream gas in a turbine annulus through the rim seal into the wheel-space between the rotating turbine disc (the rotor) and the adjacent stationary casing (the stator).
Hui Tang +6 more
doaj +1 more source
Applied Sciences, 2021 This work continues the development of a numerical model to simulate transient tritium transport on the breeder zone (BZ) level for the EU helium-cooled pebble bed (HCPB) concept for DEMO.
Volker Pasler +5 more
doaj +1 more source
Impact of Vacuum-Assisted Venous Drainage on Forward Flow in Simulated Pediatric Cardiopulmonary Bypass Circuits Utilizing a Centrifugal Arterial Pump Head [PDF]
Brazilian Journal of Cardiovascular Surgery, 2020 Objective: To analyze the impact of vacuum-assisted venous drainage (VAVD) on arterial pump flow in a simulated pediatric cardiopulmonary bypass circuit utilizing a centrifugal pump (CP) with an external arterial filter.
Daniel Peres Guimarães +10 more
doaj +2 more sources
Humidity Control for Front Opening Unified Pod after Opening Its Door in a Mini-Environment
Applied Sciences, 2018 Wafers are usually placed in a front opening unified pod (FOUP) while waiting in the line of manufacturing processes; a conventional way for preventing (or removing) contamination is to purge an FOUP with a gas, so as to maintain the cleanliness level ...
Shih-Cheng Hu +3 more
doaj +1 more source
Aerodynamics and Sealing Performance of the Downstream Hub Rim Seal in a High-Pressure Turbine Stage
International Journal of Turbomachinery, Propulsion and Power, 2023 The purpose of the paper is to characterize the aerodynamic behavior of a rotor-downstream hub cavity rim seal in a high-pressure turbine (HPT) stage.
Filippo Merli +4 more
doaj +1 more source
Preliminary torrefaction of oil palm empty fruit bunch pellets [PDF]
E3S Web of Conferences, 2019 Torrefaction of pelletised oil palm empty fruit bunches (OPEFBs) is a promising pretreatment technique for improving its solid biofuel properties and energy recovery potential.
Nyakuma Bemgba B. +7 more
doaj +1 more source