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What is the required distance of an LP gas tank from a grain dryer?
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Can you use cng in a lpg tank?
No
How can be maintain the mlss in aeration tank?
by drain the sludge of secondary tank from time to time....and one may also maintain mlss by the addition of jaggery ...
What is the difference between a calorifier and a chlorifier?
A calorifier is a sealed tank, which heats water indirectly. Usually in the form of a heated coil which is immersed in the water. Commonly known as a hot water tank. A chlorifier is a water tank in which the water is heated via an external source.
What is the basic operating principle of a flash tank?
What You Should Know About Flash Tanksby J. E. TROCOLLI • Sarco Co., Inc. • Allentown, PA (Actual Specifying Engineer/71)High-pressure steam systemsrequire flash tanks -here is a guide to determining sizesCondensate temperatures in high-pressure steam systemsgenerally are only slightly less than the saturatedtemperature of the steam. When hot condensates are dischargedinto lower-pressure areas, condensate temperatureimmediately drops to the saturated temperature ofthe low-pressure area. As the result of the drop in temperature,heat released evaporates a portion of the condensate,generating flash steam.To return condensate to the boiler or to discharge it tothe sewer, it is necessary to separate flash steam fromthe condensate. This is accomplished by discharging condensatethrough steam traps into a vented tank, referredto as a flash tank.Flash steam produced in the flash tank may be ventedto the atmosphere or piped to a low-pressure main. Condensateremaining may then be returned to the boiler ordischarged to drain.Tanks must be large enough to ensure dryness of thereleased steam and to avoid carryover by the steam ofwater in droplet form. When using horizontal flash tanks,the required area is found by multiplying the diameter ofthe tank by its length. This measures the tank's capacityto handle condensate. Table 1 illustrates the required areafor each 1,000 lb. of condensate/hour with varying steamand flash pressures.How big a tank?Problem:An absorption machine condenses 12,000lb. of steam/hr. Assuming the flash tank is vented to theatmosphere, determine the size of the flash tank requiredwith a steam pressure of 12 PSIG.Solution:Enter table 1 at 12 PSIG steam pressure,moving horizontally to 0 PSIG. Find .75, which is the numberof square feet required for each 1,000 lb. of condensate.Since 12,000 lb. of steam are generated, it may bedetermined that by multiplying 12 x .75, 9 sq. ft. of surfacewill be required, or that the diameter of the tank infeet times its length in feet must equal 9. Thus, a tank 2ft. by 4.5 ft. may be used.Problem:A dryer operating at 100 PSIG condenses18,000 lb. of steam/hr. The flash tank is to discharge itsflash into a 5-PSIG heating main. Determine the size ofthe flash tank required.Solution:Again, using table 1, enter at 100 PSIGinitial pressure. Move horizontally to the 5-PSIG columnand find 1.92.Then:18 x 1.92 = 34.6 sq. ft.A flash tank 4 ft. by 9 ft. will be satisfactory for theapplication.Sizing vent linesIf flash steam is to be discharged to the atmosphere,a properly sized vent line must be provided. To determinethe proper size, first find the area of the flash tank,using the method described above.Problem:Determine the size of the vent line usingtable 2. If, as in the first problem, tank size is 2 ft. by 4.5ft. (9 sq. ft.), refer again to table 2, where 9 sq. ft. falls on7.4-to-12 line. For this range, a 2-in. vent line would besatisfactory.Problem:Determine the size of the vent line if theflash tank size is 4 ft. by 9 ft. or 36 sq. ft. In table 2, 36 isin the 27-to-36 line, and, in this case, a 31/2 in. vent wouldbe needed.Figure 1 shows a typical flash-tank piping diagramin which the flash is discharged to the atmosphere.If it is desired to utilize the flash steam by dischargingit into a low-pressure main, refer to figure 2. In thisinstance, it will be necessary to properly size the lineconnecting the flash tank to the low-pressure main.Using table 3, determine the percent of flash. Multiplythis percentage by the condensate load in lb./hr. todetermine the number of pounds of steam that are flashed.Determine what steam velocity will be acceptable in theline. If a low noise level is desired, a relatively low velocitymust be selected - 4,000 to 6,000 FPM.Where noise is not a factor, a velocity of 12,000 FPMor higher may be used. After velocity has been determined,the required pipe size can be found in table 4.Problem:10,000 lb./hr. of condensate is dischargedinto a flash tank from a 125-PSI steam system. Flashsteam is to be piped into a 10-PSIG low-pressure heatingmain. Determine the size pipe required for connectingthe flash tank to the steam main.Enter table 3 at 125-PSI initial pressure. Move horizontallyto the 10-PSIG column and find 12.2 percentflash. Then the amount of flash steam/hr. is found thisway:10,000 x 12.2 percent = 1,220 lb./hr.SECTION ENG - PAGE 0100FLASH TANKSTABLE 1 FLASH TANK IN SQ. FT. = DIAMETER x LENGTH OF HORIZONTALTANK FOR 1,000 LB. CONDENSATE PER HOUR BEING DISCHARGEDTABLE 2 VENT LINE SIZE TABLE 3 PERCENT FLASHFOR HORIZONTALFLASH TANKS½"FLASH TANKSTABLE 4 STEAM VELOCITY CHARTFORM FLASH TANKSRevised 4/04 SHIPCO® IS A REGISTERED TRADEMARK OF SHIPPENSBURG PUMP CO., INC.SHIPPENSBURG PUMP COMPANY, INC.,P.O. BOX 279, SHIPPENSBURG, PA 17257 • PHONE 717-532-7321 • FAX 717-532-7704 • WWW.SHIPCOPUMPS.COMPRINTED IN THE U.S.A. • BEIDEL PRINTING HOUSE, INC., 717-532-5063 PERMISSION TO REPRINT BY SPIRAX SARCO INC.Since low noise level is important, a velocity in the4,000 to 6,000 FPM range must be selected. Enter table4 at 1,220 lb./hr., moving horizontally to a flash-steampressure of 10 PSIG. Then move up to 4,000 to 6,000FPM velocity. Here, the chart shows that a 3-in. pipe willhandle about 6,000 FPM, or a 4-in. line would handleabout 3,500 FPM.When vent lines cannot be extended to dischargeoutside the buildings, it is important that the condensatebe cooled below the dewpoint to prevent the exhaustfrom condensing and wetting walls, machinery, floors andso on.Estimating temperatureSince the dewpoint depends on several factors, includingrelative humidity and temperature (which are variable),the temperature to which the condensate must becooled should be estimated for individual cases.The following is the recommended procedure:Calculate the size of the flash tank in the methoddescribed above:Estimate the dewpoint, assuming unfavorable conditions,and, when making the estimate, take ventilation intoaccount - it is a factor in determining relative humidity:Once the dewpoint is known, estimate the quantityof cooling water that will be required and finally:Determine the pipe size and size of temperatureregulator valve required. A self-contained regulator witha normally closed valve to open when the temperaturerises is recommended. All such controls have an amplerange over and under the calibration point so that settingmay be adjusted after installation.Problem:Calculate the quantity of cooling water requiredto cool condensate in a flash tank vented to anenclosed space, assuming the following data:Steam pressure is 100 PSIG;Condensate is entering the flash tank at 1,550 lb./hr.at 335°F;Ambient temperature of the space into which ventdischarges is 75°F; andCold water temperature is 50°F.Assuming that ventilation at the above temperaturewill be sufficient to have not more than 70 percent relativehumidity, the dewpoint will be 64.5°F (determinedfrom psychrometric chart).To allow 1°F for safety, condensate should be cooledfrom 338°F to 63.5°F. When the installation is completed,further adjustment can be made by resetting the regulator.The heat to be extracted from the condensate is equalto:1,500 lb./hr. x (338-63.5)°F = 410,000 BTUHThe quantity of cooling water required:410,000 BTUH(63.5 -50)°F= 30,500 lb./hr.or 3,670 GPH = 61 GPMA 1.5-in. pipe to supply the water and a 1.25-in. temperatureregulator are recommended for this application.Flash tanks separate flash steam from the condensateby venting the flash steam to the atmosphere orpiping it to a low-pressure main, while returning the remainingcondensate to the boiler or discharging it to thedrain. If flash steam is discharged to the atmosphere, aflash tank and a properly sized vent line must be determined;if discharged to low-pressure mains it is necessaryto calculate the correctly sized line connecting theflash tank to the low-pressure main. Also, the proper temperaturefor cooling the condensate must be determinedfor projects in which vent lines cannot be extended todischarge outside the buildings.Different situations require individual solutions to determinethe correctly sized flash tank, connecting pipeand cooling temperature needed, but the calculation examplesoffered here provide the means to determine thenecessary installations and accessories required.Figure 1A typical flash tank pipingdiagram discharging to atmosphere.NOTE: Omit trap if condensate isdischarged into vented pump receiver.Figure 2A typical flash tank pipingdiagram with flash discharging to lowpressuresteam system.Figure 3This diagram depicts acombination flash tank installation withsubcooling condensate.VENTPRESSURERELIEF VALVEVENT IFDESIREDTO LOWPRESSURE MAINHIGH PRESSUREFROMCONDENSATEHIGH PRESSURESYSTEMFLASH TANKSTRAINERFLOAT ANDTHERMOSTATICTRAPFIN TUBECOOLING LEGREQUIREDTO LOW PRESSURERETURN LINE ORDRAINVENT TOATMOSPHEREHIGH PRESSUREFROMCONDENSATEHIGH PRESSURESYSTEMFLASH TANKSTRAINERFLOAT ANDTHERMOSTATICTRAPFIN TUBECOOLING LEGREQUIREDTO DRAINCONDENSATEFROM HIGHPRESSURESTEAM SYSTEMTEMPERATUREREGULATORSTRAINERCOLD WATERSUPPLYVENT TOT ATMOSPHEREWATER LEVELCOILDRAINTO SEWERFLASH TANKS
What is the cost of sintex storage tank with a capacity of 5000 liters?
rs.25000.00
Is an expansion tank required for a tank less water heater?
No, an expansion tank is not required.
What is the required distance away from a building for a 10000 gallon diesel fuel tank?
Every city has specific codes and regulations regarding the distance between buildings and fuel tanks. For a 10,000 gallon tank, it should be kept at least 30 feet from all buildings.
What type of regulator is required on a nitrogen tank?
A pressure regulator is required on a nitrogen tank.
How do you calculate fuel mileage?
One method would be to fill the fuel tank, top it off, then drive a certain distance, at least thirty miles, the more the better. Return to the point of origin, refill the tank, top it off. You now have a distance and the amount of furl it required. The rest is simple division.
What is a ventless dryer used for?
A ventless dryer is used for drying clothes after they have been washed. Rather than releasing steam through a venting hose, a ventless dryer catches the steam, in the form of water, in a tank at the bottom of the machine.
How does a air dryer on a truck work?
The compressor compresses air and send it to either a wet tank or directly to the air dryer. Oil and moisture in the compressed air are absorbed by the desiccant in the air dryer canister. When the compressor signals cut out, it also send a signal to the dryer to open the purge valve, which purges the canister.
Minimum distance between septic tank and well?
50 ft from the tank.
What should be the distance between sump tank and septic tank?
10 feet
What is the best way to get water out of a gas tank?
Either a fuel line de-icer or a fuel line dryer.
Should a fish tank evaporate water?
Yes, it's very common. The dryer the air, the faster it will evaporate.
Which would NOT be required safety equipment for a sea kayaker?
oxygen tank
How many times will you need to fill up for gas going 1006.15 miles going 70 miles an hour on a 15 gallon tank?
You need to know the fuel consumption in miles per gallon (mpg) at 70mph. Trip distance (1006.5) divided by mpg = gallons required. Number of fill-ups = gallons required divided by tank capacity (to be rounded to nearest full tank) example: If you get 20mpg at 70mph, 1006.15 miles / 20mpg = 50.3075 gallons required. 50.3075 gal / 15 gal tank = 3.3538 tanks required = 4 fill-ups You will have 4 minus 3.3538 = 0.6462 tank capacity left when you arrive. (0.6462 x 15 = 9.7 gal leftover)
