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Record W3047933586 · doi:10.1061/9780784483213.010

Ugh, Not Another Forcemain High Point

2020· article· en· W3047933586 on OpenAlex
Djordje Radulj, Ahmad Malekpour

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenuePipelines 2020 · 2020
Typearticle
Languageen
FieldEngineering
TopicHydraulic flow and structures
Canadian institutionsHydraTek (Canada)
Fundersnot available
KeywordsBooster (rocketry)Computer scienceConceptual designHydraulic machineryRisk analysis (engineering)EngineeringMechanical engineering

Abstract

fetched live from OpenAlex

Owners, engineers, and operators that are involved with wastewater forcemain systems often neglect the importance and associated risks of intermediate high points. This paper outlines the hydraulic-related challenges with intermediate forcemain high points and provides examples of the full suite/range of typical design solutions that are often considered and/or employed during design. The potential solutions are discussed from the point of view of challenges and risks, with the ultimate conclusion being that intermediate forcemain high points are a significant design challenge that is often not solved in a clear or proven manner. Given that many wastewater forcemain systems with an intermediate high point experience operational challenges, the paper also presents an additional and seldom considered design alternative of inline booster pumping for wastewater. The paper outlines the benefits and risks of inline booster pumping and proceeds to present a case study for a conceptual wastewater forcemain system with four inline booster stations to address the associated high static head, long length, and challenging intermediate high points. The case study initially provides an example of the hydraulic-related differences between inline booster pumping and traditional design with wet wells, including pump selection and surge protection requirements. The paper then proceeds to demonstrate how proportional integral derivative (PID) control logic for inline booster systems can be optimized with hydraulic transient modelling of pump operation and flow control stability. Overall, the objectives of the paper are to re-emphasize the challenges with intermediate forcemain high points and to discuss the potential benefits and risks of inline booster pumping as to promote discussion.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: Not applicable
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.411
Threshold uncertainty score0.852

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.010
GPT teacher head0.193
Teacher spread0.182 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it