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Updated: Jul 1, 2026
09:04
A Modeling and Simulation Method for Preliminary Design of an Electro-Variable Displacement Pump
Published on: June 1, 2022
Reverse Tesla valve modulated efficient water evaporation and cooling
Wensheng Wang1,2,3, Shouwei Gao4, Han Wu1
1Province Key Laboratory of Forestry Intelligent Equipment Engineering, College of Mechanical and Electrical Engineering, Northeast Forestry University, Harbin, People's Republic of China.
Nature Communications
|June 29, 2026
Summary
This study introduces a novel bulk-effect evaporation system (BEES) inspired by the reverse Tesla valve. BEES significantly enhances evaporation rates for applications like solar steam generation and water harvesting.
Area of Science:
- Engineering
- Thermodynamics
- Fluid Dynamics
Background:
- Water evaporation is crucial for natural cycles but limited in industrial applications.
- Conventional evaporators face challenges with boundary layer resistance, hindering efficiency.
- Existing methods struggle to meet demands in solar steam generation and evaporative cooling.
Purpose of the Study:
- To overcome rate limitations in industrial water evaporation.
- To develop a novel system for enhanced evaporation dynamics.
- To address the water-energy nexus through improved evaporation technology.
Main Methods:
- Reinventing Nikola Tesla's fluidic diode into a bulk-effect evaporation system (BEES).
- Utilizing a reverse Tesla valve mechanism for modulated bulk-effect evaporation.
- Leveraging structure-induced vortex airflow to disrupt boundary layers.
Main Results:
- Achieved an evaporation rate of 21.29 kg m⁻² h⁻¹.
- Reached a total energy/solar efficiency of 627%.
- Demonstrated potential for all-day freshwater harvesting and efficient evaporative cooling with significant energy savings (414 GJ m⁻³ month⁻¹).
Conclusions:
- BEES establishes a new bulk-effect evaporation framework.
- This approach complements traditional interfacial engineering.
- The system offers a viable solution for the water-energy nexus.
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