how to calculate the water requirement of thermal power plant of water cooling tower

How to calculate the water requirement of thermal power plant of water cooling tower

11 days ago

Close viewer

Like Comment Follow Flag

o Flag as Promotion o Flag as Job o Flag as Inappropriate

More o Reply Privately

Danny Traigle, Suri Ganeriwala and 1 other like this

You, Danny Traigle, Suri Ganeriwala and 1 other like this

14 comments

sinnaduraiUnfollow Follow sinnadurai

sinnadurai sripadmanaban • it depends on type of cooling tower,ambient temperature etc

10 days ago• Unlike • Like

• Reply privately • Flag as inappropriate • Flag as promotion

2

NicholasUnfollow Follow Nicholas

http://www.linkedin.com/groups?viewMemberFeed=&gid=1513267&memberID=87909676


Nicholas Schroeder • Marley/SPX has a fundamentals book. Get a copy. Evaporation varies w/ the weather, Trane has a free interactive psych chart on their web site. Blow down is function of makeup water quality.



2

StevenUnfollow Follow Steven

Steven Wombwell • where are you putting the power plant (geographically)



0

BradUnfollow Follow Brad

Brad Buecker • In addition to Nicholas' comments above, the Cooling Technology Institute is a great resource for cooling tower information. Their web site is www.cti.org. Their next annual conference will be this February in Houston, Texas, USA. My colleagues and I have been performing cooling tower calculations regularly over the last few years for the many combined-cycle proposals that my company continues to receive. We have a top-rate heat balance group that provides the data for planned operating conditions (in any geographical location), from which we calculate water balances including those of cooling tower evaporation, drift, and blowdown. A new twist is the development of hybrid cooling towers, where some cooling is achieved on a dry basis followed by wet cooling. This process reduces water loss from evaporation and blowdown.

Brad Buecker



Process SpecialistKiewit Power Engineers



2

RAJUUnfollow Follow RAJU

RAJU PAKIRISAMY • ONE TSTEAM CONDENSING 50 TON OF COLD WATER

FOR 60 MW POWER PLANT IPP WE NEED 400 MTS OF WATER PER HOURP.RAJUHEAD POWER PLANT



0

SumitUnfollow Follow Sumit

Sumit Agrawal • Hi Brad, Could you please give me some information about Hybrid cooling towers? We have quite a lot of projects in pulp, paper and power industries. We are looking some solution to minimise water loss due to evaporation and blowdown. You can email me at [email protected].

Thanks





0

BradUnfollow Follow Brad

Brad Buecker • Dear Sumit,

When I return to work this week, I will send you some information I have. In fact, just last week I worked on water balance calculations for a power plant in which water usage of a conventional cooling tower at several conditions was compared to water usage in a hybrid tower. At some conditions, the savings are relatively slight, but at others they are dramatic. My direct experience has been with conventional cooling towers, but the development of hybrid cooling towers and air-cooled condensers is very interesting and my colleagues and I are becoming more and more involved with these technologies, in part because my company also constructs cooling towers. If you haven't considered it, think about attending the International Water Conference this November in Orlando, Florida, USA. Excellent cooling water presentations are available every year. I will be speaking this year, but my topic is steam generation chemistry. Then, in February 2014, is the Cooling Technology Institute's annual winter meeting, this time to be held in Houston, Texas, USA. I will also be presenting at this event on problems we encountered at one site in treating cooling tower blowdown for zero liquid discharge.

Best regards,

Brad



0

SumitUnfollow Follow Sumit



Sumit Agrawal • Thanks Brad. Regarding air-cooled condensers, it doesnt make for a practical experience at my location in Thailand. I understand it is mostly preferable for Middle East countries because of water scarcity there. Also the area required by air cooled condensers is quite high compared to conventional cooling towers, which is not financially feasible for our site.

However I have no idea about hybrid cooling towers and would wait for more information from you. Also do send me some technical materials about ZLD, as we are working on it presently for a new thermal power plant with waste water flow rate being about 5000 m3/day



0

syed AkhtarUnfollow Follow syed Akhtar

syed Akhtar ahmad • Hi Brad. Good topic can you provide some information of hybrid cooling towers. My E-Mail add [email protected]



0

EdenUnfollow Follow Eden

Eden Yunus • Morning Brad. If could, can you also share to me. My e-mail [email protected]. Thank you very much, Brad


• Reply privately



• Flag as inappropriate • Flag as promotion

0

R.K.Unfollow Follow R.K.

R.K. Anand • Hi Brad, Pl share details of high brid cooling at my mail id: [email protected]



0

DevpriyaUnfollow Follow Devpriya

Devpriya Ghosh • Syed,

Do you want to calculate entire water requirement in a power plant having wet cooling tower system?

or

Water requirement for Cooling Water system?



0



sunilUnfollow Follow sunil

sunil jhakal • water required for cooling tower depends where you have installed it whether near coastal areas or in dry region,which will directly affect the ambient temeraturewill depend upon the delta T design of the system for which you have placed a cooling tower.what is the recirculation rate m3/hr.so if u calculate the evaporation rate u will get to know the quantity of required water.evaporation rate= .0018* recirculation rate * delta T it may defe a little bit due to relative humadity



1


Nicholas Schroeder • For instance the heat carried by a circulating water system is: 300,000 gpm*500*15 F = 2,250 E6 Btu/h. This heat must be transferred to the air flowing through the tower. Suppose 1.1 L/G, 1.1 # of water per # of air. (2,250 E6 Btu/h) / (300,000*500/1.1) = 16.5 Btu/h per # of air. Refer to psychrometric chart. Entering air: 65 F, 50% RH, 22.75 Btu/#, 45.95 gr/#. Exiting air: 39.25 Btu/#, 100% RH, 75.7 F, 134.82 gr/#. The air has evaporated 88.87 gr of water per # of air. 7,000 gr/#. 3,462.5 gpm evaporated, 1.15%. For interactive psychrometric tables: http://www.trane.com/COMMERCIAL/DNA/View.aspx?i=1250

2 days ag

• Flag as inappropriate • Flag as promotion

0

http://www.linkedin.com/?trk=group_item_detail-b-show_lks-cmt

http://www.linkedin.com/groupItem

http://www.linkedin.com/groupItem?flag=&gid=1513267&type=member&item=255108231&commentID=150129758&flagReason=INA




Nicholas Schroeder • I wasn't completely happy w/ the answer above. This is just for evaporation. When I considered .2% drift loss and 10 cycles of concentration the result was spot on 1.5% of flow. MU gpm = (Evap gpm + Drift gpm)*cycles / (cycles -1)BD = (Evap + Drift) / (cycles -1) I think these are correct. Check my work. Thnx.



0

AndyUnfollow Follow Andy

Andy Wearmouth • If you are trying to calculate water consumption at a high level the biggest bearing of all will be the underlying thermal efficiency of your plant (so determining the amount of heat to be rejected to your cooling water system per MWhr of electricity produced) and the capacity factor that it will likely operate (total MWhr). Your intended make up water quality will essentially govern the achievable cycles of concentration achievable and hence blow down requirements to further complicate matters. Evaporation calculations are fairly straight forward once the amount of heat to be rejected is determined. The hard bit is deciding what your design conditions are....ambient temperature, RH etc. Under design in these areas and it is very hard to sort out later.



0



http://www.linkedin.com/groupItem?setLike=&gid=1513267&type=member&item=255108231&commentID=150885621&csrfToken=ajax%3A3805817029533634535&trk=gde_lkcmt&goback=.gde_1513267_member_255108231


http://www.linkedin.com/groupMsg?displayCreate=&contentType=MEBC&connId=134478568&groupID=1513267&goback=.gde_1513267_member_255108231

http://www.linkedin.com/groupItem?setUnlike=&gid=1513267&type=member&item=255108231&commentID=150885621&csrfToken=ajax%3A3805817029533634535&trk=gde_unlkcmt&goback=.gde_1513267_member_255108231


http://www.linkedin.com/groupfollowing?follow=&followee=134478568&csrfToken=ajax%3A3805817029533634535&goback=.gde_1513267_member_255108231&trk=fwp_l

http://www.linkedin.com/groupfollowing?unfollow=&followee=134478568&csrfToken=ajax%3A3805817029533634535&goback=.gde_1513267_member_255108231&trk=ufp_l


http://www.linkedin.com/groupMsg?displayCreate=&contentType=MEBC&connId=72507669&groupID=1513267&goback=.gde_1513267_member_255108231

http://www.linkedin.com/groupItem?setLike=&gid=1513267&type=member&item=255108231&commentID=150773487&csrfToken=ajax%3A3805817029533634535&trk=gde_lkcmt&goback=.gde_1513267_member_255108231







sunilUnfollow Follow sunil

sunil kumar • @Nicholas Actually we are talking about about the standard practice and it is used mostly,Ya,it may be the condition what you are tlkink about on the parameters of water and the enviournmental conditions on which your COC is designed,and it may differ water consumption.

4 days ago• Unlike

http://www.trane.com/COMMERCIAL/DNA/View.aspx?i=1250

Trane Commercial

Commercial HomeCustomer LoginSoftware DownloadsContact UsLiterature SearchGlobal

HVAC Systems

Chilled Water Applied SystemsDX Unitary

SystemsEarthWise™ Design Approach

Systems IntegrationBuilding Services

High Performance BuildingsElite Start™

ServicesOperate & Maintain Services

Upgrade & Improve ServicesRental ServicesControls

Wireless CommBuilding ManagementHVAC ControlsLegacy ControlsEnterprise ManagementTracer XTSensorsMyTrane ControlsVariable Frequency

HVAC SOLUTION CALCULATORS & CHARTS

Trane Psychrometric Chart

For professional reports, use this electronic psychrometric chart tool. Click to download this program to your PC. These charts focus on the range of temperatures most suitable for comfort-cooling HVAC applications, and include the Trane coil curves, which depict the condition of the air leaving a cooling coil.

Also, printed psychrometric charts are available to order.

Software Updates

Download software updates for Trane Controls.

Order Software

Order C.D.S. Software now.View license agreement. Online order form.Online GSA order form.

/w EPDw UKMTU0

Select softw are

Search

http://www.trane.com/COMMERCIAL/DNA/View.aspx?i=1250






http://www.trane.com/commercial/DNA/View.aspx?i=918

http://www.trane.com/Commercial/DNA/View.aspx?i=909


DrivesThermostatsTrane eViewProducts

ChillersAirside and Terminal DevicesUnitaryAdvantage™ VRF SystemSureFit™ CoilsOEM CompressorsProduct LiteratureParts & Supplies

CompressorsControlsHVAC EquipmentMotorsSureFit™ CoilsIAQOE Proprietary PartsContractor Supplies & AccessoriesEducational Resources

Find Training ClassesContinuing Education Courses (USGBC, AIA)Design & Analysis Software TrainingControls & Automation TrainingTechnical Service TrainingEngineers NewslettersEngineers Newsletter LiveAir Conditioning ClinicsTextbooks & Application ManualsDuctulator and Psychrometic ChartsFeatured Case Studies

K-12 EducationHigher EducationGovernmentHealthcareIndustrialLodging And EntertainmentRetailLife SciencesData CentersOffices and InstitutionsRental ServicesControlsSureFit CoilsEnergy, IAQ & The Environment

Indoor Air QualityEnergy & the EnvironmentTotal Cost of OwnershipStandards & CodesFinancing

Anticipation DiscountTotal Cost of OwnershipIR Financial ServicesDesign & Analysis Tools

Analysis Tools

Design Tools

Selection Tools

Software Support

Advanced Engineering Support (AES)

Academic Packages

Calculators & Charts

Software News (CDS)

Faxable order form.

Training

Learn how to maximize the benefits from Trane’s C.D.S. Design & Analysis software.More...

High Performance Buildings

See how Trane helps you create and sustain High Performance Buildings for Life™. More...

Current Software Versions

TRACE 700 Family v6.2.10

System Analyzer v6.1.1

Engineering Toolbox v4.1

Trane Acoustics Program (TAP) v4.1

TOPSS v8.8.061a

VariTrane Duct Designer v4.1

Trane Pipe Designer v4.1

C.D.S. Software Central

Support references for our C.D.S. Software suite.More...

http://www.trane.com/Commercial/Dna/View.aspx?i=708


http://www.trane.com/Commercial/dna/view.aspx?i=909

http://www.trane.com/Commercial/dna/view.aspx?i=909

Download Center

Order Forms

Knowledge Base

Seismic Compliance

TRANE FOR:

Architects

Commercial Real Estate

Data Centers

Department Stores

Engineers

Government

Healthcare

Higher Education

K-12 Education

Restaurants

Retail

© 2013 Trane News RoomCareersPrivacy PolicySite MapTerms of Use

Trane, a business of Ingersoll Rand - the world leader in creating and sustaining safe, comfortable and energy efficient environments - improves the performance of homes and buildings around the world. Trane solutions optimize indoor environments with a broad portfolio of energy efficient heating, ventilating and air conditioning systems, building and

contracting services, parts support and advanced controls for homes and commercial buildings.

Explore the Ingersoll Rand family of brands

http://www.clubcar.com/Pages/default.aspx

http://www.ingersollrand.com/

http://www.schlage.com/

http://www.thermoking.com/

how to calculate the water requirement of thermal power plant of water cooling tower

Documents