Clean Water CFD Simulation Training Package, 7 Learning Products
In this CFD simulation training package, we have studied various methods for different Clean Water devices. There are 7 CFD projects including HDH, water distiller, solar still, RO, AGMD, and etc.Click on Add To Cart and obtain the Geometry file, Mesh file, and a Comprehensive ANSYS Fluent Training Video. By the way, You can pay in installments through Klarna, Afterpay (Clearpay), and Affirm.
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This training package includes 7 Clean Water CFD simulation projects using ANSYS Fluent software. MR-CFD suggests this package to those interested in the clean water engineering field. This package introduces you to various clean water systems’ performance principles and how to numerically simulate them. This package presents 7 different clean water systems.
Water desalination is classified into two general methods, Thermal and Membrane. One of the Thermal methods is humidification and dehumidification systems. Project No. 1 is related to the Humidifier-DeHumidifier (HDH) system. This system consists of two compartments. One of the chambers sprays water on the drying air (humidifier’s system). The other chamber captures the moisture of the wet air due to contact with the cooling pipes (dehumidifier’s system).
So this project consists of two parts. For the humidifier’s system, the DPM Model defines the discrete spraying of water droplets, and the Species Model defines dry air and moist vapor. The VOF Multi-Phase Model defines the vapor and water phases for the dehumidifier system.
Water Distiller (Domestic Clean Water System)
We design some desalination devices on a small scale and have domestic applications. One of these systems is a water distiller. Project No. 2 simulates a home Water Distiller. The desalination process in this model consists of two stages.
First, impure water evaporates by receiving heat, and then the resulting pure steam condenses due to contact with cold pipes. This project uses the VOF Multi-Phase Model to define water and vapor. Also, we define a mass transfer between water and vapor as evaporation and condensation processes.
Project No. 3 has also presented another small-scale thermal model. This model consists of diagonal plates. First, the water is heated and evaporated by the bottom of the chamber, and then the steam is cooled and condensed by the diagonal cold plate. Therefore, we use the Multiphase VOF Model for this project. A UDF code defines the phase change rate between water and vapor.
Solar Still (Clean Water)
The disadvantage of thermal systems is that they require energy consumption and reduce efficiency. So, using renewable energy such as solar energy can solve this problem. Project No. 4 deals with the simulation of a simple Solar Still.
Inside it, there is water up to a certain level. This solar still consists of sloping glass roofs—the heat of solar radiation transfers to the surface of the water through the glass walls. Water evaporates from the surface to condense after hitting the sloping walls.
Therefore, we use the Multiphase VOF model to define the water and vapor phases. Then, we use a UDF code to define surface evaporation.
Project No. 5 also simulated a solar still with a similar performance mechanism. Also, this solar still has a similar building. However, we use a different method to model it. Instead of defining a multiphase model, we use the Species Transport Model to define a mixture of water and steam.
Reverse Osmosis (RO)
Another of the two general methods of water desalination is the Membrane method. The main advantage of this method is to reduce energy consumption. The Reverse Osmosis (RO) method is the most well-known and popular. The reverse osmosis method works against the osmosis pressure approach.
According to the phenomenon of osmosis, fluid always tends to move from lower to higher concentrations. So a pressure difference is created between the two sides, equivalent to osmotic pressure. The mechanism of the reverse osmosis desalination system is opposite to this natural fluid behavior. A filter is placed in the path of the fluid to separate the impurities from the pure fluid after passing through it.
Project No. 6 has simulated a Reverse Osmosis system. We carry out this project in two stages in an unsteady state. First, we investigate the osmosis phenomenon, and then simulate the reverse osmosis desalination system. We use a Porous Medium to define the membrane of the system.
Air Gap Membrane Distillation (AGMD Water Desalination)
Some methods are obtained from the combination of thermal and membrane methods. The Membrane Distillation method is an example of these methods. This method is performed in four different modes. One of them is the Air Gap Membrane Distillation method.
Project No. 7 is related to the AGMD system. Within this system, an air gap is placed between the surface of the cold flow and the membrane connected to the hot flow. This air gap is a special space for condensation to occur. In this space, the steam condenses to produce fresh water.