My Popular Articles
- Excel Formulas to Calculate Water Flow Rates for Different Pipe Sizes
- Preliminary Heat Exchanger Design - Calculations Involved
- Introduction to the Manning Equation for Uniform Open Channel Flow Calculations
- Manning Equation Calculations for Partially Full Pipe Flow
- Easy to Understand Diagram of the Nitrogen Cycle
- Natural Convection Heat Transfer Coefficient Estimation Calculations
- Download Excel Spreadsheets for Activated Sludge Waste Water Treatment Calculations
- Storm Water Sewer Design Calculations
- Double Pipe Heat Exchanger Design
- Pipe Flow Calculations 3: The Friction Factor & Frictional Head Loss
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July 06, 2009
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Solar Energy Quiz
Are you a solar energy expert ... or an interested novice? Take this quiz, see where you rank, and perhaps learn more about solar energy and how solar energy is being put to use for passive solar heating, photovoltaic panels, and active solar heating...Published on September 13, 2011 to Renewable Energy
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Heat Exchanger Designs
Calculations for heat exchanger designs use heat transfer parameters such as convection heat transfer coefficients, overall heat transfer coefficients, and log mean temperature differences. These calculations are needed for shell and tube and double...Published on September 9, 2011 to Mechanical Engineering
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Fluid Mechanics/Hydraulics in Civil Engineering
The widespread applications of fluid mechanics and hydraulics in civil engineering include transportation of fluids in pipes and in open channels, as well as flow measurement for both pipes and open channels. These areas of application use a variety...Published on September 8, 2011 to Civil Engineering
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Darcy's Law for Modeling Groundwater Flow
Modeling of groundwater flow is important for a variety of applications, such as groundwater flow from an aquifer through wells for water supply or irrigation, and remediation of groundwater contamination. A primary tool for groundwater modeling is Darcy's...Published on September 1, 2011 to Civil Engineering
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Preliminary Heat Exchanger Design Example
Design of heat exchangers is an iterative process, using the heat exchanger design equation to estimate the needed heat transfer area, based on an estimate of the overall heat transfer coefficient, specified heat load, and log mean temperature difference...Published on August 17, 2011 to Mechanical Engineering
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Calculation of Critical Depth and Critical Slope for Open Channel Flow
Calculation of critical slope and critical depth for open channel flow is needed for some applications. Read on for the equations, calculation procedures, and examples for a rectangular channel and for a trapezoidal channel.Published on August 2, 2011 to Civil Engineering
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What is Structural Engineering?
What is a Structural Engineer? He or she is a person who designs, analyzes and builds structures. Structural engineering, a branch of civil engineering, involves design of structures (e.g. buildings, bridges, etc.) so that they will withstand...Published on June 29, 2011 to Civil Engineering
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Download Excel Spreadsheets for Activated Sludge Waste Water Treatment Calculations
Activated sludge wastewater treatment calculations can be made using the Excel formulas in the downloadable spreadsheets. Biochemical oxygen demand (BOD), waste water flow rates and total suspended solids concentrations are used in the activated...Published on June 1, 2011 to Civil Engineering
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Excel Formulas for Pressure Drop in Shell and Tube Heat Exchanger Design
Excel formulas for calculation of frictional pressure drop in shell and tube and double pipe heat exchanger design can be downloaded from this article. The pressure drop calculation is for the tubes in a shell and tube heat exchanger or for the inside...Published on May 31, 2011 to Mechanical Engineering
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Variations in Activated Sludge Wastewater Treatment Systems
Activated sludge waste water treatment systems are the most widely used type of biological wastewater treatment for removal of biochemical oxygen demand from wastewater. All activated sludge process variations bring dissolved oxygen, aerobic bacteria...Published on May 27, 2011 to Environmental Science