What is the evaporation rate of an outdoor pool in Florida?
AnswerEvaporation rates vary depending on many factors such as relative humidity, air temp, water temp, and wind speed. Also running water features such as spitters, water falls, sheer decents greatly increase the surface area of water increasing the amount of evaporation. The swimming pool construction company I work for considers 1/8 in. water loss per day normal evaporation. Pools that run multiple water features for extended periods of time may lose upwards of 1/4 in. per day.
The evaporation rates of occupied and unoccupied swimming pools have been measured to derive empirical equations for calculating loss. Three references are:
1. Smith, Charles C., George O.C. Lof, Randy W. Jones, "Rates of Evaporation from Swimming Pools in Active Use", ASHRAE Transactions, Volume 104, 1998
2. Smith, Charles C., George O.C. Lof, Randy W. Jones, "Measurement and Analysis of Evaporation from an Inactive Outdoor Swimming Pool", Solar Energy, Vol. 53, No. 1, pp. 3-7, 1994
3. Shah, Mohammed, "Calculating Evaporation Rates from Indoor Water Pools", HPAC Engineering, March 2004
A spreadsheet tool for estimating the heat loss due to evaporation from an indoor pool is available at http://www.energyideas.org/documents/spreadsheets/IndoorPoolCalc.xls.
This tool is based on the reference above by Shah.
The Rate at which a pool evaporates depends on the relative humidity in the air surounding it. Read More
Heating a pool will increase the rate of evaporation from that pool. Read More
It depends a lot on the temperature and humidity. Here in Southern Arizona it is 110 degrees and 10% humidity (hot and dry) right now, and my pool loses about an inch every three days or so. Wind is also a major factor in evaporation. The quicker the moisture is pushed off the top of the pool the faster it is replaced with more. Windy equals increased evaporation rates. Read More
The evaporation rate of an indoor swimming pool has many factors to consider. 1.) How large is the pool? 2.) What temperature are you keeping the pool water at? 3.) What temperature are you keeping your poolroom at? 4.) Are you using a pool cover? An example would be..... If you have a 300 sq. ft. pool and are keeping the pool at 82 degrees and the room at 84 degrees your evaporation rate would… Read More
Evaporation rates primarily depend on surface area, not volume. All that really matters is the square feet of surface area that are exposed. Evaporation rates in Florida can range from 1/10 of an inch per day in the winter to upwards of 3/4 of an inch in the summer. Read More
Approx. 1.5" to 2" per wk. Read More
A dark pool liner might cause a very small increase in water evaporation, but nothing significant. The dark pool liner will raise the water temp a bit which, in turn, may increase the evaporation rate. But, the evaporation rate is much more dependent upon the air temperature and humidity than on the water temp, so the increase in water temp would only have a very small effect on the overall or net water evaporation rate… Read More
The color of water does affect the evaporation rate because the red water is more dense then regular clear water. Read More
Which change would result in an increase in the rate at which water evaporates from an outdoor swimming pool?
Wind, humidity, and temperature Read More
The National Weather Service uses a large water pan with a diameter of 4 feet. They measure the drop in water level in one day, fill it back to the level it was before and measure the level drop the next day. They and others do this all over the United States. Others do it throughout the world. The Weather Service reports the evaporation at each location, each day, and sum all these daily values… Read More
It depends on whether the pool is considered "enclosed" inside a pool house or not. The assumption in such case is that the pool house prevents "outside" air circulation which enables the humidity inside that "house" to be maintained at a high level which minimizes evaporation. It goes without saying then that if you keep the doors to your pool house open then you loose much of the evaporative benefit of having the pool enclosed… Read More
Simple evaporation test: Mark your water level of your pool, (make sure that the auto feed valve is off). Place a bucket with water next to the pool and mark the level. (keep the dog away as this will affect the outcome. Periodically monitor your levels. The pool and the bucket should have the same rate od evaporation. If the pool level drops below the bucket- you have a leak. If the bucket drops past… Read More
Rate of evaporation depends on temperature. As Temp decreases, so does the rate of evaporation. Read More
Eventually, all of it if not replenished. The rate of evaporation depends on local climatic conditions. Read More
Rate of Evaporation of MEK is (BuOA=1) 2.7 Rate of Evaporation of MEK is (BuOA=1) 2.7 Read More
The higher the temperature, the higher the rate of evaporation. It is Read More
The rate of evaporation will decrease. Read More
The rate of evaporation decrease. Read More
These are all variables used to calculate evaporation rate: The larger the surface area the higher the evaporation (rate) The higher the wind speed the higher the evaporation (rate) The higher the temperature the higher the evaporation (rate) The higher the relative humidity the lower the evaporation (rate) Read More
about 1 gallon at a dose rate of 5 parts per million, dah Read More
The normal rate of evaporation is dependent on many factors. First, every type of molecule has a different rate of evaporation. For example, acetone has an evaporation rate of 3.0 while water has an evaporation rate of 0.3. You can find a complete listing of each molecule's evaporation rate at your local library. You can also find this information in most laboratories as well. Read More
The rate of evaporation is different for different liquids. Read More
When the surface area increase the rate of evaporation increase. Read More
How does the quality of water affect the rate of evaporation. Should it be considered for determining the rate of evaporation?
if quality of water reduce the evaporation will decrase Read More
The evaporation rate in California is constantly changing. This is because of humidity and other environmental factors that play a role on evaporation. Read More
at a given temperature, the higher the humidity, the lower the evaporation rate. the evaporation rate drops to zero when humidity is at 100 percent. in a practical case, evaporation will cool the water so that complicates the relationship. Read More
In a dynamic equilibrium between the liquid state and the gas state what is the true about the rate of evaporation?
the rate of evaporation will be equal to the rate of condensation Read More
I don't know, but can I assume you want to know so you can tell if your pool is leaking? That, I can answer. Perform a bucket test. ( the evaporation will be from 0 to an inch a day, depending on the weather, the pool's depth, the pool's color, it's circulation efficiency, and several other factors). The bucket test can eliminate leakage and tell you your exact evaporation. Place a 5 gallon bucket (about)… Read More
A higher rate of evaporation has hot water. Read More
As surface area increases, the rate of evaporation also increases Read More
When a liquid is cooled, the rate of evaporation slows down Read More
Yes, the evaporation rate slows at lower temperatures. Read More
No, the rate of evaporation will decrease as pressure is increased. Read More
as the temperature increases, the rate of evaporation increases Read More
Place a bucket of water next to the pool and use it as a constant. The bucket will lose and gain water due to evaporation and rainfall at the same rate as the pool. Mark the water level in the bucket and in the pool and watch it over several days. Be sure not to backwash or splash water from the pool during the test, and turn off the auto-fill if your pool has one… Read More
One factor that affects the rate of evaporation is temperature. Warmer weather means a faster rate of evaporation. The density of the air or humidity in the surrounding air is also a factor. If the air is already humid, evaporation will take longer. Read More
A large surface area will increase the rate of evaporation in the water. Read More
The evaporation rate is very dependent on the temperature. You will have to access a data table to find this out. Read More
evaporation is liquid turn to steam . rate is 34.5 lb multiply by hp Read More
An increase in surface area causes an increase in the rate of evaporation. Read More
A decrease of temperature involve a decrease of the evaporation rate. Read More
Increase in surface area will increase the rate of evaporation. Read More
Evaporation rate is the measure of the amount of time it takes for a particular substance to turn into vapor. Some factors affecting the rate of evaporation are temperature, wind, exposed surface area and humidity. Read More
Water evaporates. The hotter the surface temperature is, the faster the evaporation rate it. Even during the summer, the water evaporates at night. Read More