# Steam Power

Freesteam: Steam Tables, Open Source, IAPWS-IF97. Elliott-turbo. Click here to access the CALCULATOR. U.S. Department of Energy Steam Turbine Calculator How-To This calculator can be used to produce rough approximations of power and/or steam flow given a set of conditions. Please note that this is a generic tool developed by the US Department of Energy, and that more precise results for Elliott steam turbine generators with controlled and/or uncontrolled extractions can be provided by contacting Elliott.

There are 2 common methods of use for the U.S. Calculate Steam Turbine (Generator) Power, given: Inlet Pressure Inlet Temperature Steam Flow Exhaust Pressure *This is the most typical method when calculating ST output. Calculate Steam Flow, given: Inlet Pressure Inlet Temperature Exhaust Pressure Desired Power (kWe) * Please see the section below titled “2. Instructions Please note: The U.S. 1. 2. Table 1: Exhaust Pressure Conversion Table Table 2: Estimated Isentropic Efficiencies of Steam Turbines. Steam Generation Thermodynamics 101. While this equation appears complicated, it is easily understood through a few definitions and simplifications.

First, in many systems (especially steam generators) potential and kinetic energies are very minor compared to other energy changes and can be overlooked. Second, in a steady flow process such as in a steam generator, the system does not accumulate energy, so dEc.v. /dt = 0. Removing these terms leaves the internal energy of the fluid (u) plus its flow work (Pυ) capabilities. Equation 2: Q – WS = m(h2 – h1) But this represents the ideal scenario and here is where the second law steps in.

Equation 3: This equation represents a theoretically ideal engine. Equation 4: While entropy may seem like a somewhat abstract term, it is of great benefit in determining process efficiency. Two important points should be noted about the Carnot cycle, and by logical inference all real-world processes. Second, the efficiency (η) of a Carnot engine is defined as Equation 5: η = 1 – TL/TH. Turbine Steam-Consumption Calculator.

This free program will calculate the steam consumption for a turbine of known power and efficiency. The required data are the inlet steam pressure and temperature, and the exhaust pressure. The program will determine the specific and actual steam consumption, and the outlet steam enthalpy, entropy, temperature and quality. The program is very easy to use because all the required steam properties are built in. A wide variety of units of measure are included, and once you have selected the units you prefer to use, the program will remember your selection from run to run. All the input fields and the calculation results are shown in a single window. Click here to download the full free software package (895 kb).

The Turbine program runs under Windows XP / Vista / Win 7 / Win 8. Excel and Steam Tables - Heat Transfer & Thermodynamics engineering. Thermodynamic and Transport Properties of Water and Steam - Physical Properties - Articles - Chemical Engineering - Frontpage - Cheresources.com. Water is not only one of the most common substances and indispensable to life, it's also one of the most important media in engineering applications. Steam engines with water as the working fluid were at the beginning of the industrial revolution. The rise of electrical energy is connected to hydroelectric and steam power plants. Water is used as cooling medium or heat transfer fluid and it plays an important role for air-condition. For conservation or for reaching desired properties, water must be removed from substances (drying). In other cases water must be added (humidification). Also, many chemical reactions take place in hydrous solutions.

That's why a good deal of work has been spent on the investigation and measurement of water properties over the years. A standard for the thermodynamic properties of water over a wide range of temperature and pressure was developed in the 1960's, the 1967 IFC Formulation for Industrial Use (IFC-67). The value of the specific gas constant. Freesteam: Steam Tables, Open Source, IAPWS-IF97. How to Calculate the Coal Quantity Used in a Power Plant. Written by: johnzactruba • edited by: Lamar Stonecypher • updated: 10/15/2009 How to make quick estimate of the coal required for running a power plant?

This article describes a simple method. Very often, the Power engineer is required to perform some basic calculations regarding the key parameters of a power plant. Most important is the quantity and cost of fuel that is required.This article gives the simple calculation method. (A detailed calculation required in the context of a contract, tender, performance repor,t or a legal document may require more accurate input data.)We take the example of a 100 MW Coal Fired Power Plant. Energy Content in CoalThe basic function of the power plant is to convert energy in coal to electricity. Watt Calculator - Joules - Watts - Kilowatts - Therms - BTU - Horsepower - Converter - MHI-Inc. Engineering Units for Energy and Power The JOULE (J) is a commonly used unit of energy.

The BTU is also an unit of energy. Energy units employed by electric companies are the kWhr (Kilo-Watt-Hour for electric) or Therm (for gas). 1000J = 1kJ (KiloJoule) = 0.9485 BTU=0.0002778 kWhr 1 kWhr = 0.03413 Therm [U.S.] The Watt (W) is a unit for power i.e. the energy used (or supplied) per unit time. 1 J/s (Joule per second) = 1 W (Watt) Power is sometimes expressed in alternate units like BTU/hr or Horsepower (hp) Power-Units Conversion 1kW (KiloWatt) = 3414 BTU/hr 0.746kW= 1hp Power rating of steam-boliers is in units of BHP One BHP (boiler -horsepower) = 33,500 BTU/hr = 9.803 kilowatts (The BHP power unit is a bit confusing becasue BHP could be confused with brake-horsepower (bhp) which is an auto industry term) What is Energy - What is Power?

Energy: We often encounter power and energy in our daily lives. Energy Price: For historical reasons we use many different units for power and energy. Thermal Power Plant Working | INDIAN POWER SECTOR. Introductory overview In a coal based power plant coal is transported from coal mines to the power plant by railway in wagons or in a merry-go-round system. Coal is unloaded from the wagons to a moving underground conveyor belt.

This coal from the mines is of no uniform size. So it is taken to the Crusher house and crushed to a size of 20mm. From the crusher house the coal is either stored in dead storage( generally 40 days coal supply) which serves as coal supply in case of coal supply bottleneck or to the live storage(8 hours coal supply) in the raw coal bunker in the boiler house. Raw coal from the raw coal bunker is supplied to the Coal Mills by a Raw Coal Feeder. Diagram of a typical coal-fired thermal power station Principal Coal based thermal power plant works on the principal of Modified Rankine Cycle. Components of Coal Fired Thermal Power Station: Coal Preparation ** pulverizer is a mechanical device for the grinding of many different types of materials.

A. B. C. Economiser Reheater. Steam Pricing. A survey of cogeneration in the Italian pulp and paper sector. A Dipartimento di Ingegneria Industriale e Scienze Matematiche, Università Politecnica delle Marche, Ancona, Italyb Facoltà di Scienze e Tecnologia, Università degli Studi di Bolzano, Bolzano, Italyc Università degli Studi e-Campus, Novedrate, Italy Received 4 June 2012, Accepted 21 January 2013, Available online 9 February 2013 Choose an option to locate/access this article: Check if you have access through your login credentials or your institution Check access doi:10.1016/j.applthermaleng.2013.01.038 Get rights and content Abstract The pulp and paper industry is an energy-intensive sector which the need for heat and electricity throughout the year makes an ideal user of cogeneration.

Highlights Keywords Gas turbines; Energy efficiency; Primary energy saving (PES); Combined heat and power (CHP) Abbreviations Copyright © 2013 Elsevier Ltd. Energy Management Handbook, Fifth Edition - Wayne C. Turner. Steam Generation Thermodynamics 101. Energy Management Handbook - Wayne C. Turner, Steve Doty. Steam and condensate balance calculation and software - Chemical plant design & operations. Steam System Modeler. There is often flexibility in the operational conditions and requirements of any steam system.

In order to optimize performance, the impacts of potential adjustments need to be understood individually and collectively. The Steam System Modeler allows you to create up to a 3-pressure-header basic model of your current steam system. A second model can then be created by adjusting a series of characteristics simulating technical or input changes. This allows you to see how each component and adjustment impacts the others and what changes may be most beneficial to increasing the overall efficiency and stability of the system. The modeler was developed to provide accurate results for the specific cases it represents and does not include a variety of variables that can and do impact any given steam system.

Intended Users The Steam System Modeler was designed for manufacturing plant personnel who are interested in improving steam system efficiency in their manufacturing facilities. Inputs Outputs. CoolProp - Browse /CoolProp/6.0.0/MicrosoftExcel at SourceForge.net. Excel Wrapper — CoolProp 6.0.0 documentation. Search — CoolProp 6.0.0 documentation. From here you can search these documents. Enter your search words into the box below and click "search". Note that the search function will automatically search for all of the words. Pages containing less words won't appear in the result list. Search finished, found 4 page(s) matching the search query. Excel Wrapper.. _Excel: ************* Excel Wrapper ************* Pre-compiled Binaries for windows ================================= Pre-compiled release binaries can be downloaded from :sfdownloads:`MicrosoftExcel`. Steam Pressure Reduction vs Temperature - Heat Transfer & Thermodynamics engineering.

Thermodynamics of steam pressure reducing valve. Products. The convenience of instant properties in your spreadsheet - ChemicaLogic releases CO2Tab - a comprehensive property add-in package, including solubility in water. Available for Windows Excel 2013/2010/2007 (32 & 64-bit) and Mac OSX Excel 2011. MoistAirTab™ brings you a comprehensive set of air, water, steam and ice properties — right in your spreadsheet — with "live" links to variable psychrometric conditions by cell reference. You never again have to copy or re-type any property value into your spreadsheet! Available for Windows Excel 2013/2010/2007 (32 & 64-bit) and Mac OSX Excel 2011. ChemicaLogic releases SteamTab Quad™ to help users transition from the old steam formulations to the new IAPWS standards.

SteamTab Quad Version 4.0 contains 4 sets of universally recognized formulations for calculating the properties of water and steam. Over 4,500 people worldwide have downloaded the molecular weight calculator add-in for spreadsheets from this site. Does a PRV reduce Temperature on Steam? - Pipelines, Piping and Fluid Mechanics engineering. Pages - Superheated Steam. Rankine cycle - Wikipedia. Steam and Condensate - What is Steam and the properties of Steam - Throttling Saturated Steam | Physics Forums - The Fusion of Science and Community. I can do the calculations from the data in the steam table and really don't need to put a "number on it" (Sorry)jim hardy, Would you use the saturation table for the downstream side? We know the pressure, but we (I) don't know if it is saturated, correct?

I suppose my question is: Is it possible to have superheated steam downstream of a pressure reduction valve. I am not saying we do, I am saying it is possible.siddharth23, the second part is basically saying if there isn't a lot of moisture that needs flashed into steam (lets say the quality is 99.9%) then the steam would be super heated because there is nothing (no work needed) to reduce temp after the .01% moisture is removed.. If it isn't, then back to my question to my coworkers is, where did the energy go? Pages - Flash Steam. The benefits of recovering flash steam, how it is done and how flash steam can be applied elsewhere in the plant to maximise overall efficiency.​ The formation of flash has already been discussed in Module 2.2, ‘What is steam’, and a major flash steam application has been covered in Module 3.13, ‘Heat recovery from boiler blowdown’. This Module will provide a brief reminder of these earlier Modules; discuss how flash steam is formed, and focus on how flash steam can be used effectively to improve steam plant efficiency.

‘Flash steam’ is released from hot condensate when its pressure is reduced. Even water at an ambient room temperature of 20°C would boil if its pressure were lowered far enough. As an example, when steam is taken from a boiler and the boiler pressure drops, some of the water content of the boiler will flash off to supplement the ‘live’ steam produced by the heat from the boiler fuel. How much flash steam​ is available? Requirements for successful flash steam applications. Steam System Modeler. Boiler-Tuning Basics, Part I. On my first project as a combustion control engineer, I was responsible for loop checks and for watching the experts tune the system controls. The first loop I tried to tune solo was the drum level control. At that time the trend-tune program defaulted to a 2-minute window, and no one bothered to mention to me that the proper time span to tune drum level control to is 20 to 30 minutes.

I also zoomed in on the drum level, which has a normal range of ±15 inches, though my trend range was ±3 inches. Finally, I did not know that drum level can be a very "noisy" signal, so the hours I spent trying to tune out that noise were wasted. Eventually, I got the bright idea to add a little derivative to the loop control. In the time it took to program 0.01 as the derivative gain and then immediately remove it, the boiler tripped.

What Constitutes Good Control? Every boiler ever built has its own set of peculiarities. Boiler control processes are where I will begin. Operator Controls. Condensing vs Backpressure Turbine Performance - Heat Recovery. Condensing vs Backpressure Turbine Performance Figure 11-34 is a Mollier chart with cycle efficiencies of 40, 50, and 60% shown. As illustrated, lower efficiency results in reduced heat drop, less work done, and higher final enthalpy. The term "heat absorbed" refers to the energy in the steam that is actually converted to work. In a condensing turbine, the heat that is not absorbed goes on to be condensed and represents wasted energy. In a non-condensing, (i.e., back-pressure) turbine, the heat that is not absorbed is used effectively in a downstream process.

The condensing cycle is a closed Rankine cycle in that the working fluid repeatedly executes the cycle processes. Figure 11-35 illustrates the difference between a condensing and non-condensing Rankine cycle. Fig. 11-33b Approximate Steam Turbine Efficiency Nomograph (SI Units). Enthalpy Btu/h 60% Eff. Exhaust Pressure hl Exhaust Pressure Fig. 11-34 Simplified Mollier Chart Indicating Representative Cycle Efficiencies. Get My Free Ebook. Mass and Energy Balances in Plant Design. Energy optimization in a pulp and paper mill cogeneration facility | mohan singh sidhu. Turbine Power Calculations - Student - Cheresources.com Community. Sugar - Steam Turbine Calculations. Turbine Steam-Consumption Calculator. A Thermal Analysis and Optimization of a Combined Cycle by Several Technologies. Er 8a: Ideal Rankine and Reheat Steam Power Cycles (revised 4/25/10)

The Cost of Producing Electricity - Maintenance WorldMaintenance World – An article source for reliability and maintenance management professionals. Simulis Thermodynamics - Mixture properties and fluid phase equilibria calculations under Excel or Matlab. Electricity Generation using Steam Turbines. Balancing Steam Systems - Rossiter & Associates. Water quality control to keep power plant chemistry in balance | Endress+Hauser. Untitled. SteamTables. Boiler Efficiency. Link to Steam Energy Model. RVUMLCNCVB18285MP4SJL8IZOC1MNC. Steam and Hot Water System OptimizationOptimization: Case Study (Energy Engineering) Calculator: Steam Unit Cost | TLV - A Steam Specialist Company (International)

Steam Turbines (Energy Engineering) Accounting: Facility Energy Use. Phase Change, Phase Change Diagram, Sublimation. Thermodynamic Cycle Spreadsheets. Power vs Energy Explanation -- Clearing up the Confusion.