Dehumidification >> Dehumidification Techniques

To overcome these technical and economic barrio of produced water desalination by conventional technologies, novel processes that renewable energy can be used are reviewed for potential application in produced water desalination. A specific feature of produced water is that a large quantity of geothermal energy could be Dehumidification Techniques co-produced during oil production. 

By deploying the low-cost energies, a considerable decline in operating cost is expected. In addition, many oil gas active areas, such as western of United States, are enriched with solar radiation. The high solar radiation intensity and the deep reservoir formation (located in southeastern New Mexico) make it feasible for deploying Dehumidification Techniques or integrating solar and coproduced geothermal energies for produced water heating and desalination. 

Desalination Process 1.2.1 Desalination Process Multi-stage flash (MSF) process Multi-stage flash process (MSF) is a water desalination process that distills salty water by flashing feed water into steam in multiple stages. Multistage Flash Desalination has a market share of over 60% of the worldwide desalination market Dehumidification Techniques and this share jumps to almost 80% in middle-east [Borsani et al., 2005]. 

The MSF process is characterized by large size of its production plants and Dehumidification Techniques high "gain ration” which means ten pounds of water could be produced form each pound of steam [Al-Enezi et al., 2006; Othmer, 1969]. Figure 1-1 gives a schematic diagram of multi-stage desalination process. As shown in the figure, a MSF desalination system includes several chambers in which pressure decreases from the first chamber to the last one. 

After salty water is heated by brine heater, it will be introduced into the first desalination chambers known as the "a stage", where the surrounding pressure is lower than that in the brine heater. Because of the pressure reduction, water will be boiled rapidly here and flashed into steam. However, Dehumidification Techniques only a small percentage of water will be converted into steam. 

The remaining water will be sent to a series of additional stages with increased vacuum. The generated steam is condensed into fresh water and Dehumidification Techniques collected as clean water. Seawater is heated in the heat exchanger by condensation of the vapor produced in each stage. The cold seawater enters into the desalination chamber in a counter flow with the waste brine and Dehumidification Techniques distillate water. 

The heat energy released from condensation is used to Dehumidification Techniques preheat the cold seawater. Multiple-effect boiling distillation is a water desalination process that salty water is boiled in a series of chambers by the submerged tubes with steam circulated inside. Figure 1-2 shows a schematic diagram of multi-effect boiling process. 

The MEB system consists of several effect cells in which the surrounding pressure and temperature decrease continuously. As shown in Figure 1-2, brine is sprayed into individual cells from the top, Dehumidification Techniques meanwhile heated steam is introduced into the tube bundles which function as "boiler”. Salty water is warmed up by the energy provided by the heated steam in the tube bundle and partly evaporates. 

The steam flows 8 into the steam tube on the top of cell which can be used for next cell’s energy source. At the bottom of each cell, Dehumidification Techniques there are two outlet exits: concentrated water outlet and condensate water outlet. The concentrated water outlet is used for draining un-evaporated water. The condensate water outlet is used to collect clean water after condensation. 

The latent heat from the water condensation could be reused to warm up feed water Dehumidification Techniques and reduce the energy consumption. Humidification-dehumidification is a heat-based desalination process involving enhanced water evaporation in the presence of flowing air and water condensation upon subsequent 9 cooling or capillary condensation. 

The typical characteristics of the humidification dehumidification process include flexible capacity, atmospheric pressure operation, and use of low-temperature energies such as solar, geothermal, and waste heat from industries. Conventionally, Dehumidification Techniques humidification dehumidification has been carried out in two separate columns, one for humidification and the other for dehumidification. 

In one aspect, it will increase the complexity of the structure of the unit Dehumidification Techniques and capital cost for construction [Bourouni et al., 1997; Nawayseh et al., 1997; Al-Hallaj et al., 1998; Dai et al., 2004; Hashemifard et al., 2004]. In another aspect, the phase-change invoked energy consumption only come from sensitivity heat carried by feed water or carrier gas limited water evaporation capacity. 

At the same time, large quantity of latent heat will be released during vapor condensation process in a separate column. Even specific designs are generally deployed to reuse the latent heat; Dehumidification Techniques only partially latent heat can be reused. To overcome the high energy consumption during the phase conversion process, the latent heat released by the dehumidification process could be deployed for feed water preheating. 

In recent years, Beckman et al.,Dehumidification Techniques has developed a Dewvaporation process in which the heat released from vapor condensation can be reused directly for water evaporation and dramatically enhances the efficacy of latent heat reuse. In the dew vaporation process, Dehumidification Techniques humidification and dehumidification occur continuously in two chambers with an internal liquid heat exchanger on the evaporation side. 

Room temperature air is used as carrier-gas to evaporate salty water Dehumidification Techniques and to form pure condensate from dew at constant atmospheric pressure. The heat needed for evaporation is supplied by the heat released by dew fall condensation on opposite side of a heat exchange wall [Hamieh et al., 2006]. This process is formed by three major parts: humidifier, where the air was drove into and humidified to saturation condition.

Condenser, where the water vapor can be condensed for clean water creation Dehumidification Techniques; and water pre-heat system, where the feed water is further heated to elevate temperature by waste energy. One limitation of the referenced desalination process is its low water recovery and high sensitivity in heat loss [Parekh et al., 2004]. 

More recently, Dehumidification Techniques a process named AltelaRain™ technology has been utilized by Altela, Inc [Bruff, 2006]. Water was evaporated in the presence of flowing air, forming humidified air. Purified water is then collected as the air is subsequently cooled. The challenge for their distillation process is the high energy intensity needed for phase conversion from liquid to gas. 

Use of latent heat recovery for improved energy efficiency has been investigated [Parekh, et al., 2004]. As a consequence of water vapor condensation, large amount of latent heat will be released Dehumidification Techniques and collected for water preheating [Hamieh, et al., 2006].

How To Remove Smoke Smell

Most people buy air purifiers to ease asthma or allergies. But despite product claims, there's little definitive medical evidence that purifiers help relieve respiratory symptoms. Some may pose a threat even to healthy users. Electrostatic precipitators are the most heavily promoted purifiers, Smoke Damage How To Remove Smoke Smell   read more..

How Tenants Should Cleanup After Pets

Landlord to supply possession of the dwelling unit.(a) At the commencement of the term the landlord shall deliver possession of the premises to thetenant in compliance with the rental agreement and AS 34.03.100 . The landlord may, Tenant Move Out Cleanup How Tenants Should Cleanup After Pets after serving a notice toquit under AS 09.45.100 - 09.  read more..

Debris Cleanup From Tornados

Direct costs can be defined as the cost of debris removal, property damage, and response for a specific tornado event. All other costs are indirect and include loss of industrial and commercial productivity as a result of damage to infrastructure, facilities, or interruption of services. As a result  read more..

Lead Paint Removal Programs

Employers must instruct each physician not to reveal to the employer in writing or in any other way his or her findings, laboratory results, or diagnoses which are felt to be unrelated to occupational lead exposure. They must also instruct each physician to advise the employee of any occupationally   read more..

How To Write A Renter To Cleanup A Rental

Provide and maintain receptacles to remove trash, and pay for its frequent removal.-A lease for a single-family rental property may require a tenant to provide and maintain their own receptacles, and to pay for trash collection service if it is not located in a County collection district Tenant Move Out Cleanup How To Write A Renter To Cleanup A Rental&n  read more..

Enzyme Odor Removal

Reducing Urine-Marking Behavior in Dogs and Cats MUCH LIKE THE MINERS DURING THE GOLD RUSH, dogs and cats are territorial animals. They "stake a claim to a particular space, area, or object. They let other people and animals know about their claim by marking it using a variety of methods at diff  read more..

Stop A Basement From Flooding

Many people can do a lot of the clean up and repairs discussed in this guide. But if you have technical questions or do not feel comfortable doing something, get professional help.If there is a federal disaster declaration, a telephone "hotline" will often be publicized to provide information about   read more..

Flood Prevention Tips

This is a manual on safe, healthy, green, and affordable rebuilding of water-damaged homes that will: Serve as a workbook for seminars Be distributed to people working on their own homes, volunteers, and other workers as a guide and reference manual Develop work protocols for contractors This manual  read more..

White Mold

Toxic White molds Some mold, such as Aspergillus versicolor and Stachybotrys atra (chartarum), are known to produce potent toxins under certain circumstances. Although some mycotoxins are well known to affect humans and have been shown to be responsible for human health effects, for many mycotoxins,  read more..

Basement Drying

Now that we’re in the middle of a storm season, it would be a good time to talk about what would happen if your house sustained some kind of Basement Drying Basement Drying. High winds associated with a tornado can be devastating, you may think that you're one of the lucky ones, because your house is still standin  read more..