Related Experiment Video
Updated: Jun 27, 2025
10:03
The Preparation of Electrohydrodynamic Bridges from Polar Dielectric Liquids
Published on: September 30, 2014
26.3K
Effect of Temperature on the Liquid Bridging Force while Maintaining Physical Stability in Solid-Liquid Mixed Fuel
Chi Zhang1, Hangyuan Ma1, Jiafan Ren2
1Beijing Aerospace Propulsion Institute, Beijing 100076, China.
ACS Omega
|May 6, 2024
Summary
Temperature significantly impacts solid-liquid mixed fuel stability. Lowering liquid component surface tension enhances fuel uniformity and resists temperature-induced density variations, ensuring physical stability.
Area of Science:
- Materials Science
- Chemical Engineering
- Fuel Science
Background:
- Temperature fluctuations critically affect the physical stability and intercomponent forces within solid-liquid mixed fuels.
- Understanding fuel stratification and density distribution is crucial for maintaining performance and safety.
Purpose of the Study:
- To investigate the influence of temperature on the physical stability of solid-liquid mixed fuels.
- To determine the optimal fuel composition and conditions for uniform density distribution and minimal stratification.
Main Methods:
- Utilized self-designed experimental equipment to monitor fuel stratification and density distribution.
- Tested solid-liquid volume ratios of 1.25:1 and 1:1 under varying temperature conditions.
- Analyzed imaging results and measured liquid bridge forces to correlate with fuel behavior.
Main Results:
- Increased liquid viscosity with decreasing temperature enhanced the fuel's resistance to particle deposition.
- Solid-liquid ratios of 1.25:1 prevented stratification, but higher liquid surface tension led to uneven density distribution.
- A fuel with 40% nitromethane exhibited the least temperature-dependent solid-liquid contact area and the most uniform density.
Conclusions:
- Reducing the surface tension of liquid components is an effective strategy to mitigate temperature effects on liquid bridge forces.
- Maintaining physical fuel stability can be achieved by controlling liquid component surface tension against temperature variations.
Related Concept Videos
02:26Molecular Comparison of Gases, Liquids, and Solids
41.0K
Particles in a solid are tightly packed together (fixed shape) and often arranged in a regular pattern; in a liquid, they are close together with no regular arrangement (no fixed shape); in a gas, they are far apart with no regular arrangement (no fixed shape). Particles in a solid vibrate about fixed positions (cannot flow) and do not generally move in relation to one another; in a liquid, they move past each other (can flow) but remain in essentially constant contact; in a gas, they move...
41.0K
02:56Intermolecular Forces and Physical Properties
20.8K
20.8K
02:34Comparing Intermolecular Forces: Melting Point, Boiling Point, and Miscibility
44.3K
Intermolecular forces are attractive forces that exist between molecules. They dictate several bulk properties, such as melting points, boiling points, and solubilities (miscibilities) of substances. Molar mass, molecular shape, and polarity affect the strength of different intermolecular forces, which influence the magnitude of physical properties across a family of molecules.
Temporary attractive forces like dispersion are present in all molecules, whether they are polar or nonpolar. They...
Temporary attractive forces like dispersion are present in all molecules, whether they are polar or nonpolar. They...
44.3K
02:39Phase Transitions: Melting and Freezing
12.4K
Heating a crystalline solid increases the average energy of its atoms, molecules, or ions, and the solid gets hotter. At some point, the added energy becomes large enough to partially overcome the forces holding the molecules or ions of the solid in their fixed positions, and the solid begins the process of transitioning to the liquid state or melting. At this point, the temperature of the solid stops rising, despite the continual input of heat, and it remains constant until all of the solid is...
12.4K
02:57Surface Tension, Capillary Action, and Viscosity
27.7K
Surface Tension
The various IMFs between identical molecules of a substance are examples of cohesive forces. The molecules within a liquid are surrounded by other molecules and are attracted equally in all directions by the cohesive forces within the liquid. However, the molecules on the surface of a liquid are attracted only by about one-half as many molecules. Because of the unbalanced molecular attractions on the surface molecules, liquids contract to form a shape that minimizes the number...
The various IMFs between identical molecules of a substance are examples of cohesive forces. The molecules within a liquid are surrounded by other molecules and are attracted equally in all directions by the cohesive forces within the liquid. However, the molecules on the surface of a liquid are attracted only by about one-half as many molecules. Because of the unbalanced molecular attractions on the surface molecules, liquids contract to form a shape that minimizes the number...
27.7K
01:22Surface Tension of Fluid
270
Surface tension is a fundamental property of fluids, occurring at the boundary between a liquid and a gas or between two immiscible liquids. This phenomenon arises from the cohesive forces between molecules at the fluid's surface, creating an effect similar to a stretched elastic membrane. Inside each fluid, molecules are equally attracted in all directions by neighboring molecules, but surface molecules experience a net inward force, resulting in surface tension.
Surface tension varies...
Surface tension varies...
270