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Record W4317636707 · doi:10.2514/6.2023-1915

Feasibility Study on using the Heat Pipe Assembly to Enhance the Performance of Air-Cooled Condensers

2023· article· en· W4317636707 on OpenAlex

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

VenueAIAA SCITECH 2023 Forum · 2023
Typearticle
Languageen
FieldEngineering
TopicHeat Transfer and Optimization
Canadian institutionsUniversity of Waterloo
Fundersnot available
KeywordsCondenser (optics)Heat pipeNuclear engineeringSurface condenserTurbinePower stationThermal power stationThermalMaterials scienceEnvironmental scienceMechanical engineeringMechanicsHeat transferEngineeringSteam turbineThermodynamicsElectrical engineeringSuperheated steamPhysics

Abstract

fetched live from OpenAlex

View Video Presentation: https://doi.org/10.2514/6.2023-1915.vid Power generation cycles, whether as a simple or combined cycle power plant, are facing with serious performance losses in summer times. In vapor-based thermodynamic cycles, the power production is mostly restricted by the poor performance of their condensers. The power plant indeed the air-cooled condensers are highly affected by environmental conditions. The impact is that there would be a sharp drop in thermal performance of an original air-cooled condenser. With the increase in ambient temperature, the poor performance of an air-cooled condenser leads to a serious decrease in turbine power production. The main goal of this research is to increase the performance of an air-cooled condenser using heat-pipes installed on proper locations at the air-cooled condenser. To achieve this, a numerical simulation is used to find the most suitable arrangement of the heat pipes, which are going to be installed in possible positions inside the condensate fluid tank of an air-cooled condenser. The main contribution of this work is that it, avoids two-phase flow simulation inside the heat pipe. The heat pipe is assumed as a solid metal with a very high thermal conductivity value. Next, the heat pipes are placed into the condensate tank of an air-cooled condenser at an ambient temperature of 35 °C using three different arrangements. Then, the entire system of ACC including the heat pipes are simulated suitably. Finally, the most appropriate arrangement is selected to provide the maximum amount of heat released from the original condenser. The simulation results indicate that the highest and lowest amount of heat release from the ACC are from 29.9 kW to 30.5 kW. The results show that the most suitable arrangement with the highest thermal performance occurs at ambient temperature of 35 °C.

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)0.001
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: Simulation or modeling · Consensus signal: Simulation or modeling
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.293
Threshold uncertainty score0.410

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

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 head0.024
GPT teacher head0.292
Teacher spread0.268 · 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