Gravitational energy harvesting from hydrostatic water columns

This work presents a novel and rigorous framework for extracting gravitational potential energy stored in hydrostatic water columns using an advanced piston-based mechanical system. Combining classical hydrostatic theory, modern stratified fluid energy concepts (APE to BPE transition), and innovative reset mechanisms (pulley-canceled forces and air-assisted actuation), we derive a new general law for hydrostatic energy depletion. The system efficiently harvests available gravitational energy without violating conservation laws, achieving net positive energy conversion cycles while maintaining mass conservation. This approach opens a new frontier in gravitational energy extraction from static fluid reservoirs, bridging fluid dynamics, thermodynamics, and mechanical engineering., , , # Gravitational Energy Harvesting from Hydrostatic Water Columns

Dataset DOI: [10.5061/dryad.zgmsbccr6](10.5061/dryad.zgmsbccr6)

## Description of the data and file structure

This dataset contains experimental gauge pressure measurements collected during submerged reset tests of a hydrostatic annullating-system at a fixed depth of 12 meters below sea level. The purpose of the study was to determine the minimum air pressure (Pc) required to lift the annullator system vertically against gravity, using compressed air injected into the system’s back chamber. The annullator was kept at a constant depth using a crane, and analog manometers recorded the gauge pressure at which motion initiated. The experiments were repeated 50 times under identical conditions to validate consistency and pressure symmetry assumptions in the design. The data supports the findings of the associated manuscript submitted to Scientific Reports in 2025, \"Gravitational energy harvesting from hydrostatic water colum...