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Example Sutherland Formula Viscosity Calculator Excel Spreadsheet
An example UASB design calculations spreadsheet is partially shown in the image below. This Excel spreadsheet can be used to calculate the required UASB reactor volume and dimensions, sludge production rate, methane production rate, and required alkalinity addition based on user input information on wastewater flow and characteristics, biokinetic parameters, methane stoichiometry parameters, and reactor configuration and design parameters. This Excel spreadsheet, as well as others for wastewater treatment process design calculations, is available in either U.S. or S.I. units for a very reasonable price .
The transfer of heat to and from process fluids is an essential part of most of the chemical processes. So the Heat Exchangers (HEs) are used extensively and regularly in the process and allied industries and are very important during design and operation. The most commonly used type of heat exchangers are double pipe heat exchangers and shell-and-tube heat exchangers. Shell-and-tube heat exchangers are used extensively in engineering applications like power generations, refrigeration and air-conditioning, petrochemical industries etc. These heat exchangers can be designed for almost any capacity. A primary objective in the heat exchanger (HE) design is the estimation of the minimum heat transfer area required for a given heat duty, as it governs the overall cost of the heat exchanger. However, many number of combinations of the design variables are possible. The design variables in a double pipe heat exchanger are-inner pipe diameter and thickness, outer pipe diameter and length of the exchanger. The design variables in a shell and tube heat exchanger are- tube outer diameter, tube pitch, tube length, number of tube passes, baffle spacing and baffle cut. Kern’s method is used to find the heat transfer area for a given design configuration. The heat exchanger thus designed should perform the given duty subject to some pressure drop constraints and have the minimum heat transfer area.
Heat pipe and thermal management solutions, Thermacore
An example dissolved oxygen saturation in water calculator Excel spreadsheet is partially shown in the image below. This Excel spreadsheet can be used to calculate the dissolved oxygen solubility in water at a specified water temperature and atmospheric pressure. This Excel spreadsheet, as well as others for wastewater treatment calculations, is available for both U.S. or S.I. units for a very reasonable price .
An example compressible pipe flow calculator spreadsheet is partially shown in the image below. This Excel spreadsheet can be used to calculate the frictional pressure drop, or the gas flow rate, or the required minimum pipe diameter. This Excel spreadsheet, as well as others for pipe flow calculations, is available for both U.S. or S.I. units for a very reasonable price .
Thesis of heat resistant steel pipe - New Sinda® pipes
The study was conducted in support of advanced heat pipe applications that require reliable transport of high temperature drops and significant distances under a broad spectrum of operating conditions.
Friction reductions as high as 73% in smooth tubes and 83% in rough tubes were observed, accompanied by an even more drastic heat transfer reduction (as high as 84% in smooth tubes and 93% in rough tubes). The heat transfer coefficients with Polyox can be lower for a rough tube than for a smooth one.The similarity rules previously developed for heat transfer with a Newtonian fluid were extended to dilute polymer solution pipe flows. A velocity profile similar to the one proposed by Deissler was taken as a model to interpret the friction and heat transfer data in smooth tubes. It was found that the observed results could be explained by assuming that the turbulent diffusivities are reduced in smooth tubes in the vicinity of the wall, which brings about a thickening of the viscous layer.A possible mechanism describing the effect of the polymer additive on rough pipe flow is also discussed." />
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Heat Pipe Science and Technology, An International Journal
The temperatures of heating and cooling sections are extremely important parameters, and play significant roles for the performance of pulsating heat pipes.
Using the heat pipes as heat transfer and heat exchange de ..
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Use Of Heat Pipe Cooling Systems In The Electronics Industry
The objective of this work is to study the effects of fluctuations of heating and cooling section temperatures on the oscillatory flow, temperature and pressure of the vapor plugs, as well as latent and sensible heat transfer of a pulsating heat pipe.
Loop Heat Pipe — Microscale Heat Transfer Lab
Statements by both government and nongovernmental health agencies frequently include lengthy statements about the hazardous chemical constituents of wood smoke. They offer lists of compounds like polycyclic aromatic hydrocarbons, dioxins and furans and acrolein. The use of intimidating technical terms without offering contextual information makes these detailed statements quite beyond the ability of the average reader to comprehend or interpret. For example, context could be provided in the form of a list of chemicals emitted by a city bus or a backyard barbecue, which are similarly odious sounding. Government personnel insist that statements listing the chemicals found in wood smoke are simply intended to inform the public, but it might equally be said that this communications tactic reveals an underlying intention to dissuade the public from using wood fuel, especially considering that no other energy source receives this kind of treatment in public information.
The heat pipe heat exchanger ..
The old cast iron stoves and furnaces burned inefficiently, sending smoky exhaust through long flue pipe assemblies to masonry chimneys that were commonly supported by wood structures. Frequent cleaning of flue pipes and chimneys was needed if chimney fires were to be avoided. But chimney fires are inevitable when simple technology is matched with user practices that produced long smouldering fires. This sense that wood heating is inherently hazardous remains with many people even today. A small-town fire chief speaking at a public meeting some years ago said: “It is not a question of if you will have a chimney fire, it is a question of when.” The fire chief’s advice is out of date now that advanced wood burners can burn the smoke and reduce the build up of creosote in chimneys.
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