Dehumidification >> Dehumidify A Flooded Home Without A Dehumidifier

As illustrated in Figure 1, the evaporator (c) and the condenser (e) are the most critical components and dominate the system performance. The evaporator is fitted with a porous tower-packing material, in this case HD Q-PAC® structured media (Lantec Products, Inc., Agoura Hills, CA), Dehumidify A Flooded Home Without A Dehumidifier providing an ultra-high surface area. 

The hot seawater that is sprayed into the top of the evaporator forms a water film on the surface of the tower-packing material while gravity-flowing downward along the evaporator. The cold dry air is pumped into the evaporator at the bottom Dehumidify A Flooded Home Without A Dehumidifier and blown upward into and through the wetted tower-packing material. 

The direct contact between the hot seawater and the cold, dry, air leads to a heat and mass-transfer process between the water and the air. The result of this heat Dehumidify A Flooded Home Without A Dehumidifier and mass-transfer process is that a portion of the seawater evaporates and thus humidifies the air and the air temperature increases and the seawater temperature decreases. 

Taking advantage of solar radiation to preheat the seawater before it enters the evaporator increases the freshwater production. As both the water-evaporation Dehumidify A Flooded Home Without A Dehumidifier and air/humidity ratio increase with increasing temperature, higher seawater temperatures lead to increased freshwater production. 

The condenser has a structure similar to that of the evaporator, i.e., it is a tower fitted with a porous tower-packing material, Dehumidify A Flooded Home Without A Dehumidifier in this case also HD Q-PAC® structured media. The humid warm air in the evaporator is pumped into the bottom of the condenser and blown upward. The air then comes into direct contact with cold freshwater being sprayed into the top of the condenser. 

As a result of a second heat and mass-transfer process, opposite to that in the evaporator, Dehumidify A Flooded Home Without A Dehumidifier air temperature decreases and the water vapor condenses out from the air into the freshwater. The water condensate constitutes the freshwater production from the system. In the test project a one-dimensional control-volume-based theoretical approach was adopted to model the aforementioned heat and mass-transfer processes in the evaporator and the condenser, respectively. 

Applying the mass-conservation principle to the counter-current air/water two-phase flow, Dehumidify A Flooded Home Without A Dehumidifier the energy-conservation principle to the liquid film, and the energy-conservation principle to the air core led to a group of governing differential or algebraic equations for the respective transport processes. These equations were solved numerically to yield a detailed description of the working characteristics of the evaporator and condenser. 

Principal Findings and Significance A theoretical model has been developed in this project that is able to predict the net Dehumidify A Flooded Home Without A Dehumidifier freshwater production of an HDH system under different operating conditions. The model is also able to provide detailed description of the temperature and humidity-ratio distributions in the critical system components of evaporator and condenser. 

The accuracy of the model is now to be assessed by comparing the model predictions with experimental results from an ongoing experimental study. The experimental study is Dehumidify A Flooded Home Without A Dehumidifier currently supported by the 2009 U.S. Geological Survey State Water Resources Research Institute Program (WRRIP2009) and constitutes Phase II of the research program. 

Upon validation, the model will provide an essential tool for the effective design Dehumidify A Flooded Home Without A Dehumidifier and practical implementation of solar-energy-driven HDH seawater desalination systems. Sample results from the model are presented below. Variables are defined as follow: Qa represents the air flow in cubic feet per minute (CFM); 

Ta represents the air temperature in degrees Celsius ( °C); Qf represents the water flow in gallons per minute (GPM); Tf represents the water temperature in degrees Celsius (°C); "ω" indicates the air/humidity ratio; The subscript "evap" indicates Dehumidify A Flooded Home Without A Dehumidifier the evaporator; The subscript "cond" indicates the condenser; The subscript "in" indicates an inlet; 

The subscript "out" indicates an outlet; The subscript "prod" indicates production. Figures 2 and 3 show the predicted results for a representative evaporator whose tower packing material section is 0.25 m in diameter Dehumidify A Flooded Home Without A Dehumidifier and 1 m in height. The seawater-inlet temperature at the top of the evaporator is set to be 60°C and the air-inlet temperature at the bottom of the evaporator is 20°C. 

Figures 2(a) and 2(b) show the predicted variations of outlet temperatures of air and seawater versus the cold-air flow, respectively, for the three seawater flows of 1.0, 2.0, and 2.5 GPM. As expected, Dehumidify A Flooded Home Without A Dehumidifier the air- and seawater-outlet temperatures decrease with increasing cold-air flows and increase with increasing hot-seawater flows. 

Figure 3 shows the predicted air outlet humidity ratio as a function of the cold-air flow for the three seawater flows of 1.0, 2.0, and 2.5 GPM. Figures 4–7 show the predicted performance of a condenser that has identical dimensions Dehumidify A Flooded Home Without A Dehumidifier and structure as those of the evaporator. The air-inlet conditions at the bottom of the condenser correspond to the air-outlet conditions under an evaporator hot-seawater flow of 2.0 GPM. 

The freshwater inlet temperature at the top of the condenser is set to be 18°C. Figures 4(a) and 4(b) show the predicted outlet temperatures of air and freshwater as a function of the cold-air flow, respectively, Dehumidify A Flooded Home Without A Dehumidifier for the three freshwater flows of 0.6, 0.8, and 1.0 GPM. Figure 5 shows the predicted freshwater production as a function of the cold-air flow for the three freshwater flows of 0.6, 0.8, and 1.0 GPM. 

Figures 6(a) and 6(b) show the predicted outlet temperatures of air Dehumidify A Flooded Home Without A Dehumidifier and freshwater as a function of the freshwater flow, respectively, for the three cold-air flows of 60, 80, and 100 CFM. Figure 7 shows the predicted freshwater production as a function of the freshwater flow for the three cold-air flows of 60, 80, and 100 CFM. 

Desalination produces freshwater by removing dissolved minerals from seawater. The process has a long history as an effective means to meet agricultural, domestic, Dehumidify A Flooded Home Without A Dehumidifier and industrial freshwater needs in coastal areas. Technologically mature conventional desalination processes that have been widely used to produce freshwater at industrial-scale include multieffect distillation, multi-stage flashing, and reverse osmosis. 

Multi-effect distillation and multi-stage flashing are based on liquid-vapor phase-change Dehumidify A Flooded Home Without A Dehumidifier processes where seawater evaporates to water vapor either at atmospheric pressure by adding heat (multi-effect distillation) or at greatly reduced pressure by lowering water's boiling point (multi-stage flashing). This water vapor then condenses to yield freshwater—leaving any previously dissolved minerals as waste byproducts.

Water Bear Carpet Cleaning

The Federal Emergency Management Agency recently announced more than $1 million in recovery aid to build a new Rockefeller Wildlife Refuge Fish Lab and Fish Lab Complex, Water Extraction Water Bear Carpet Cleaning which were destroyed during Hurricane Rita.

The Rockefeller Wildlife Refuge encompasses  read more..

Nashville Flooding And Trash Clean Up

Nashville flooding, FEMA Disaster No. DR 1909 TN (Source: FEMA) Some contractors, in order to increase their payments under their debris removal contract, will collect ineligible debris, such as debris not located on the right-of-way, Flood Damage Nashville Flooding And Trash Clean Up and haul it to the collection site for payment.&nb  read more..

The Best Way To Fix A Wet Basement

Like relocation, demolition is very disruptive for the occupants of the house. Unless you decide to buy an existing house elsewhere, you must find a place to live and to store your furniture and Basement Drying The Best Way To Fix A Wet Basement belongings while your new house is being built. 

  read more..

How To Remove Smoke Odor From A Kitchen Fire

Comparison of Fire Performance and Corrosion Work by Chapin et al. [25] evaluated the ability of a variety of standard test methods to evaluate the impact of smoke from local area network (LAN) cables on electrical equipment. Their concern was that the specialized and controlled nature of these test  read more..

Tenant Junk Removal

Housing codesThe primary purpose of housing codes is to protect the health and safety of the people who live in housesand apartments.A minimum standard of maintenance is set, making the landlord (not the tenant) responsible for keeping Tenant Move Out Cleanup Tenant Junk Removal rental property in decent shape. (See: "The landl  read more..

Securing A Fenced Perimeter

Two keys to weather safety are to prepare for the risks and to act on those preparations when alerted by emergency officials. These are essential pieces to the Weather-Ready Nation.Refer to the Federal Emergency Management Agency's (FEMA) Ready.gov/hurricanes for comprehensive Emergency Board up Securing A Fenced Perimeter information on hu  read more..

House Water Leaks

This fact sheet will help you identify and locate water leaks in your home or business. Repairing water leaks is a great way to reduce the use of water that is just being wasted. It's Only a Small Drip...Right? Slow drips of water can add up quickly. A toilet that "keeps running" after you flush or   read more..

New York Mold Program

"Mold is one of the biggest public health challenges to come from Superstorm Sandy,” said Representative Michael Grimm. "If it’s not completely and properly removed, it could lead to a sick house and serious health problems down the road for residents. From the beginning, my office has worked dili  read more..

How To Clean Black Mold In The Bathroom


If humidifiers are necessary, scrub the fluid reservoirs at least twice a week to prevent mold growth. Air conditioners and dehumidifiers can also be a   read more..

Asbestos Tile

Yes No Top of Form How can we make better? (250 Character max.) We are collecting this info under OMB clearance number 1225-0059 Bottom of Form Thank you for your feedback! Please Contact Us if you have any other Asbestos Abatement Asbestos Tile comments or questions!  Thank you for your July 27 letter regarding the   read more..