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Must the flow of compressible fluid necessarily be treated as compressible?
Wiki User
∙ 11y ago
No, for gases if the difference in pressure results in a density change of less than approximately thirty percent (30%), the fluid may be treated as incompressible by assuming the density to be the average density which remains constant.
Source: Chemical Engineering Fluid Mechanics, Ron Darby, 2nd edition, page 115.
Wiki User
∙ 11y ago
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An container of hazardous materials must state safety instructions on the label. Any such hazardous materials must have been assessed by the company or employer before using in any manufacturing process, and any relevant safety information must be passed on to the employee as part of the training. As following safety regulations in the workplace is compulsory by law (at least in the UK), anyone (employer or employee) could find themselves in serious trouble should an accident occur. Addition note: Not only is the correct and safe use of hazardous materials important, but just as important is the safe disposal of any hazardous waste.
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A distillation column has flows of materials going up and down the plates or packing. The flow across each plate or section of packing is an essential factor in the optimization calculations and design. Diameter is one of these considerations. Since columns have "heavies" traveling down and "lights" moving up and the division between these components may not be even, the top and bottom flows may be quite different, and the optimal column diameter must be adjusted at different locations along the length. Add to this the introduction of a feed stream at some point in the mid-column and the flows are altered again. But why be concerned about this? Columns are often constructed of expensive alloys, glass lined, or heat treated to avoid erosion, corrosion or stress problems. Minimizing the column size minimizes the cost. Along with quality of product, cost is an optimization factor.
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What is absorber tube?
Design of Solar energy collectors with the object of capturing in a fluid, the thermal energy component of solar energy, such that the fluid serves as a transport-carrier of the energy for use in application-specific purposes can be particularly significant in that it can be readily deployed in numerous applications. In particular, the design of a collector based on known and off-the-shelf items therefore should have immediate impact and should be a viable task. In this context then a synopsized specification for a Solar Thermal Energy Collector at a minimum should consist of a solar thermal energy absorber made of borosilicate glass tubes design-integrated into a monolith device within a Solar energy concentrator and should include the use of air, water or glycol as the heat absorber or carrier, which flows through the integrated absorber tubes. The fluid flows through the tubes at some predefined rate set in a controller that pumps it as the temperature is attained. 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In particular, the length of the linear region is of the same length of the absorber tubes available for thermal energy absorption. Moreover, the solar energy reflector should also be a thermal mirror, such that solar thermal energy component is reflected primarily. In effect, the efficiency of the mirror is based on its reflectivity of the thermal energy component instead of the optical energy component because the thermal mirror is used with very little regard for the optical component: Whether the choice is made to absorb the optical component, as well by the absorber, or not is entire optional. Based on the reflectivity of the mirror, the support base is designed to enable the removal of heat absorbed by the mirror, such that the performance of the mirror is restricted to a very narrow range of temperature variation, in order to support precision of performance. The heat removal design, however, if required may be designed to use as coolant the same fluid as intended for use in the absorber, both for efficiency and for the simplification of operation needs. Further, the depth of the concentrator is by design evaluated as to prevent any form of interference from occurring as the incidence radiation travel path intersect reflected radiation travel path. Affixed to the support base of the mirror layer is a mount-contraption for mounting the absorber. Design integration of Concentrator and Absorber entails several tasks. The first of the tasks is to have the bundled integrated absorber affixed along the axis of the hemispherical axial-linear concentrator. The base flanges are affixed to the absorber support mount of the concentrator support base structure. Of course, the support mount is constructed such that the absorber evacuated tube sections of the absorber situates within the range of the linear focus of the concentrator such that the solar thermal energy as concentrated falls right on the integrated absorber tubes. The fluid inlet of the absorber is interfaced and connected to the outlets of the concentrator cooling fluids in the case of the operation in which the same type and form of fluid is being used for both the mirror cooling and the thermal heat absorption in the absorber. In the case where different fluids are to be used then the outlets of the concentrator coolants are connected to the recirculation lines for conditioning and recirculation, while the absorber inlet line is connected to the corresponding recirculation line. In both cases the absorber fluid outlet is connected to the corresponding feed line of the recirculation line. Under proper connection, the fluid should flow into the absorber through the inlet and out through the outlet, and be available for the application-specification use and then be fed into the absorber in continuous circulating flow. The modularity of the design supports scalability, allowing for the integration of several collector modules to provide scaled heat supply needs, as in industries. Further, although use-specific form of the absorber has been used in this concept-driven design, use of evacuated thermal tubes with heat-pipes can be just as effective, though the specifics of the configuration of the integrated-bundling of the heat-pipe absorber will depend on the particular type of heat pipe used in the absorber module. An application of this technology of note is the use of the technology for application at homes. Solar Energy is noted as a good source of energy for priming theportable bioenergy technologies for homes. The use of pure water or glycol enables the adoption of the technology in just about every house backyard with too much intrusion. Hence, the collector is effective for the use in homes by home owners towards different objectives. Obvious the collector of the configuration as proffered based on readily available off-the-shelf products can be effective in addressing energy adoption issues of interest.
Must the flow of a compressible fluid be treated as compressible?
No, if the pressure difference results in a density change of less than thirty percent (30%) the fluid may be treated as incompressible by assuming the density of the fluid equals the average density and that the density is constant. Source: Chemical Engineering Fluid Mechanics, Ron Darby, 2nd edition, page 115.
In order for a material to be compressible there must be space between the particles which states of matter will be in compressible?
Solid and liquid states are not compressible.Solids.Solids
Why is brake fluid used in car brakes?
To start off, a fluid is used in the brake system because fluids are not compressible, so it can transmit the force applied by your foot to the brake system. This is the reason brakes must be bled of air. Since air is compressible it will increase the distance your foot must travel before the force of the fluid can do it's job. Brake fluid is specifically designed for brake systems because it can sustain high pressure, lubricate components, and withstand high temperatures.
Is oxygen compressible?
All gases are compressible. Depending on their state. Oxygen can be a gas, a solid or a liquid. Liquid oygen (very very cold) would not be compressible, solid oxygen (frozen) would not either but as a gas at standard conditions - room temperature and pressure - it can be compressed. For example, compressed oxygen is used in emergency vehicles to keep people alive if they are injured or sick. It is extremely flammable, almost explosive so no smoking near a compressed oxygen gas cylinder, OK?
Is necessarily a conjunction?
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It should be treated with extreme respect and reverence.
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What is a sentence for the word necessarily?
The President of the United States must necessarily be a natural-born citizen. The use of safety precautions does not necessarily mean that an experiment is safe.
Transmission fluid must be changed every 10,000 miles.?
Transmission fluid must be changed every 10,000 miles.
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Not necessarily.
