Prof. Valery Ochkov: New Applications
https://www.maplesoft.com/applications/author.aspx?mid=213673
en-us2021 Maplesoft, A Division of Waterloo Maple Inc.Maplesoft Document SystemFri, 26 Feb 2021 07:23:11 GMTFri, 26 Feb 2021 07:23:11 GMTNew applications published by Prof. Valery Ochkovhttps://www.maplesoft.com/images/Application_center_hp.jpgProf. Valery Ochkov: New Applications
https://www.maplesoft.com/applications/author.aspx?mid=213673
Расчет термического КПД двухконтурной парогазовой установки
https://www.maplesoft.com/applications/view.aspx?SID=154442&ref=Feed
Это применение вычисляет тепловую эффективность двухконтурной парогазовой (бинарной) установки.<img src="https://www.maplesoft.com/applications/images/app_image_blank_lg.jpg" alt="Расчет термического КПД двухконтурной парогазовой установки" style="max-width: 25%;" align="left"/>Это применение вычисляет тепловую эффективность двухконтурной парогазовой (бинарной) установки.https://www.maplesoft.com/applications/view.aspx?SID=154442&ref=FeedTue, 08 May 2018 04:00:00 ZProf. Valery OchkovProf. Valery OchkovCalculation of thermal efficiency of a three-circuit steam and gas (binary) plant
https://www.maplesoft.com/applications/view.aspx?SID=154436&ref=Feed
This application calculates the thermal efficiency of a three-circuit steam and gas (binary) plant.<img src="https://www.maplesoft.com/view.aspx?si=154436/Calculation_of_thermal_efficiency_of_a_three-circuit_steam_and_gas_(binary)_plant.png" alt="Calculation of thermal efficiency of a three-circuit steam and gas (binary) plant" style="max-width: 25%;" align="left"/>This application calculates the thermal efficiency of a three-circuit steam and gas (binary) plant.https://www.maplesoft.com/applications/view.aspx?SID=154436&ref=FeedTue, 08 May 2018 04:00:00 ZProf. Valery OchkovProf. Valery OchkovCalculation of thermal efficiency of a two-circuit steam and gas (binary) plant
https://www.maplesoft.com/applications/view.aspx?SID=154435&ref=Feed
This application calculates the thermal efficiency of a two-circuit steam and gas (binary) plant.<img src="https://www.maplesoft.com/view.aspx?si=154435/Calculation_of_thermal_efficiency_of_a_two-circuit_steam_and_gas_(binary)_plant.png" alt="Calculation of thermal efficiency of a two-circuit steam and gas (binary) plant" style="max-width: 25%;" align="left"/>This application calculates the thermal efficiency of a two-circuit steam and gas (binary) plant.https://www.maplesoft.com/applications/view.aspx?SID=154435&ref=FeedTue, 08 May 2018 04:00:00 ZProf. Valery OchkovProf. Valery OchkovРасчет термического КПД трёхконтурной парогазовой установки
https://www.maplesoft.com/applications/view.aspx?SID=154443&ref=Feed
Это применение вычисляет тепловую эффективность трехконтурной парогазовой (бинарной) установки.<img src="https://www.maplesoft.com/applications/images/app_image_blank_lg.jpg" alt="Расчет термического КПД трёхконтурной парогазовой установки" style="max-width: 25%;" align="left"/>Это применение вычисляет тепловую эффективность трехконтурной парогазовой (бинарной) установки.https://www.maplesoft.com/applications/view.aspx?SID=154443&ref=FeedMon, 23 Apr 2018 04:00:00 ZProf. Valery OchkovProf. Valery OchkovCalculation of thermal efficiency of combined-cycle plant
https://www.maplesoft.com/applications/view.aspx?SID=154432&ref=Feed
This application calculates the thermal efficiency of a steam turbine (based on a Rankine cycle), combined with a gas turbine based on the Brayton Cycle)<img src="https://www.maplesoft.com/view.aspx?si=154432/Calculation_of__thermal__efficiency_of_combined-cycle_plant.png" alt="Calculation of thermal efficiency of combined-cycle plant" style="max-width: 25%;" align="left"/>This application calculates the thermal efficiency of a steam turbine (based on a Rankine cycle), combined with a gas turbine based on the Brayton Cycle)https://www.maplesoft.com/applications/view.aspx?SID=154432&ref=FeedFri, 06 Apr 2018 04:00:00 ZProf. Valery OchkovProf. Valery OchkovThermodynamic Properties of Ordinary Water Substance for General and Scientific Use
https://www.maplesoft.com/applications/view.aspx?SID=154173&ref=Feed
This Maple Application was developed by Russian National Committee (RNC) of International Association for the Water and Steam(IAPWS). This calculation is based on the "Revised Release on the IAPWS Formulation 1995 for the Thermodynamic Properties of Ordinary Water Substance for General and Scientific Use". Detailed information about used equations, constants, range of validity etc is presented in PDF version of IAPWS Release which can be downloaded from IAPWS web site.<img src="https://www.maplesoft.com/applications/images/app_image_blank_lg.jpg" alt="Thermodynamic Properties of Ordinary Water Substance for General and Scientific Use" style="max-width: 25%;" align="left"/>This Maple Application was developed by Russian National Committee (RNC) of International Association for the Water and Steam(IAPWS). This calculation is based on the "Revised Release on the IAPWS Formulation 1995 for the Thermodynamic Properties of Ordinary Water Substance for General and Scientific Use". Detailed information about used equations, constants, range of validity etc is presented in PDF version of IAPWS Release which can be downloaded from IAPWS web site.https://www.maplesoft.com/applications/view.aspx?SID=154173&ref=FeedThu, 06 Oct 2016 04:00:00 ZKonstantin Orlov<BR>Aung Thu Ya TunKonstantin Orlov<BR>Aung Thu Ya TunIonization Constant of H2O as function of pressure and temperature
https://www.maplesoft.com/applications/view.aspx?SID=154073&ref=Feed
This application calculates the ionization constant of water using the formulation ratified by the International Association for the Properties of Water and Steam (IAPWS) in 2007. The formula is semi-empirical, and employs temperature and density as states. This application, however, asks the user to enter temperature and pressure as states, and uses that information to calculate the density of water. This is a more practical specification of states.<img src="https://www.maplesoft.com/view.aspx?si=154073/81c8f7d9a73d606bb26d75f871d0f3ab.gif" alt="Ionization Constant of H2O as function of pressure and temperature" style="max-width: 25%;" align="left"/>This application calculates the ionization constant of water using the formulation ratified by the International Association for the Properties of Water and Steam (IAPWS) in 2007. The formula is semi-empirical, and employs temperature and density as states. This application, however, asks the user to enter temperature and pressure as states, and uses that information to calculate the density of water. This is a more practical specification of states.https://www.maplesoft.com/applications/view.aspx?SID=154073&ref=FeedTue, 05 Apr 2016 09:40:36 ZProf. Valery OchkovProf. Valery OchkovEfficiency of a Turbine Cycle cycle with supercritical CO2 as working fluid
https://www.maplesoft.com/applications/view.aspx?SID=154066&ref=Feed
This cycle is used for recycling waste heat from industrial plants - to generate electricity<img src="https://www.maplesoft.com/view.aspx?si=154066/cc9889b3e3c2c469ae7f31638121e968.gif" alt="Efficiency of a Turbine Cycle cycle with supercritical CO2 as working fluid" style="max-width: 25%;" align="left"/>This cycle is used for recycling waste heat from industrial plants - to generate electricityhttps://www.maplesoft.com/applications/view.aspx?SID=154066&ref=FeedWed, 23 Mar 2016 04:00:00 ZVolodymir VoloshchukVolodymir VoloshchukBodies with fixed volume and minimal surface
https://www.maplesoft.com/applications/view.aspx?SID=154057&ref=Feed
We would like to find r/h when a surface is minimal.
Can you solve more complex problem for others bodies<img src="https://www.maplesoft.com/view.aspx?si=154057/1e22ebea45ed480d944eaae36fe7be0e.gif" alt="Bodies with fixed volume and minimal surface" style="max-width: 25%;" align="left"/>We would like to find r/h when a surface is minimal.
Can you solve more complex problem for others bodieshttps://www.maplesoft.com/applications/view.aspx?SID=154057&ref=FeedMon, 21 Mar 2016 17:44:27 ZProf. Valery OchkovProf. Valery OchkovThermal Efficiency of the combined (binary) cycle with T-s and h-s charts
https://www.maplesoft.com/applications/view.aspx?SID=154050&ref=Feed
This application calculates the thermal efficiency of a steam turbine (based on a Rankine cycle), combined with a gas turbine based on the Brayton Cycle) with the creating a T-s and h-s (Mollier) live charts.<img src="https://www.maplesoft.com/view.aspx?si=154050/Gas-Steam-Cycle-T-s-h-s-charts.png" alt="Thermal Efficiency of the combined (binary) cycle with T-s and h-s charts" style="max-width: 25%;" align="left"/>This application calculates the thermal efficiency of a steam turbine (based on a Rankine cycle), combined with a gas turbine based on the Brayton Cycle) with the creating a T-s and h-s (Mollier) live charts.https://www.maplesoft.com/applications/view.aspx?SID=154050&ref=FeedMon, 21 Mar 2016 04:00:00 ZProf. Valery OchkovProf. Valery OchkovThermal Efficiency of Steam Turbine Cycle with 2 Pre-heaters
https://www.maplesoft.com/applications/view.aspx?SID=154031&ref=Feed
This application calculates the thermal efficiency of a steam turbine cycle with two pre-heaters<img src="https://www.maplesoft.com/view.aspx?si=154031/6-01-2RegP.png" alt="Thermal Efficiency of Steam Turbine Cycle with 2 Pre-heaters" style="max-width: 25%;" align="left"/>This application calculates the thermal efficiency of a steam turbine cycle with two pre-heatershttps://www.maplesoft.com/applications/view.aspx?SID=154031&ref=FeedFri, 04 Mar 2016 05:00:00 ZProf. Valery OchkovProf. Valery OchkovMaximal Thermal Efficiency of Steam Turbine Cycle with two Pre-heaters
https://www.maplesoft.com/applications/view.aspx?SID=154032&ref=Feed
This application calculates the maximal thermal efficiency of a steam turbine cycle with two pre-heater by optimizing the two turbine extraction pressures.<img src="https://www.maplesoft.com/view.aspx?si=154032/6-01-04-2RegP-Max.PNG" alt="Maximal Thermal Efficiency of Steam Turbine Cycle with two Pre-heaters" style="max-width: 25%;" align="left"/>This application calculates the maximal thermal efficiency of a steam turbine cycle with two pre-heater by optimizing the two turbine extraction pressures.https://www.maplesoft.com/applications/view.aspx?SID=154032&ref=FeedFri, 04 Mar 2016 05:00:00 ZProf. Valery OchkovProf. Valery OchkovThermal Efficiency of Steam Turbine Cycle NPP with PWR
https://www.maplesoft.com/applications/view.aspx?SID=154033&ref=Feed
This application calculates the thermal efficiency of a steam turbine cycle in a Nuclear Power Plant (NPP) with a Pressure Water reactor (PWR).
<BR><BR>
Pressurized water flows from the nuclear reactor (NPP primary circuit) to the steam generator (SG) and transfers heat to the boiling water of the second circuit. Saturated steam is supplied from the steam generator to the high pressure cylinder (HPC) of the steam turbine. Part of the live steam from the steam generator enters the superheater. Before being superheated, the exhaust steam from the HPC is partially dried in the separator (S), where some water is separated from the wet steam, and then returned to the circuit with bypass of the low pressure cylinder (LPC) of the steam turbine.
<BR><BR>
The thermal circuit of an NPP introduces a risk factor not found in fossil fuel power plant. In an NPP, If saturated steam is supplied to a turbine, whose outlet pressure is 5-4 kPa, moisture in the last stages of the turbine will be unacceptably high; this may lead to steam turbine failure.<img src="https://www.maplesoft.com/view.aspx?si=154033/9-08-RankineMoistH2OR.PNG" alt="Thermal Efficiency of Steam Turbine Cycle NPP with PWR" style="max-width: 25%;" align="left"/>This application calculates the thermal efficiency of a steam turbine cycle in a Nuclear Power Plant (NPP) with a Pressure Water reactor (PWR).
<BR><BR>
Pressurized water flows from the nuclear reactor (NPP primary circuit) to the steam generator (SG) and transfers heat to the boiling water of the second circuit. Saturated steam is supplied from the steam generator to the high pressure cylinder (HPC) of the steam turbine. Part of the live steam from the steam generator enters the superheater. Before being superheated, the exhaust steam from the HPC is partially dried in the separator (S), where some water is separated from the wet steam, and then returned to the circuit with bypass of the low pressure cylinder (LPC) of the steam turbine.
<BR><BR>
The thermal circuit of an NPP introduces a risk factor not found in fossil fuel power plant. In an NPP, If saturated steam is supplied to a turbine, whose outlet pressure is 5-4 kPa, moisture in the last stages of the turbine will be unacceptably high; this may lead to steam turbine failure.https://www.maplesoft.com/applications/view.aspx?SID=154033&ref=FeedFri, 04 Mar 2016 05:00:00 ZProf. Valery OchkovProf. Valery OchkovSteam expansion in the turbine on the h-s (Mollier) chart
https://www.maplesoft.com/applications/view.aspx?SID=154034&ref=Feed
This application shows how to create:
<UL>
<LI>a h-s (Mollier) chart
<LI>and place and isobar, an isotherm, and isochor of steam on the chart
</UL><img src="https://www.maplesoft.com/view.aspx?si=154034/12-1-expansion.png" alt="Steam expansion in the turbine on the h-s (Mollier) chart" style="max-width: 25%;" align="left"/>This application shows how to create:
<UL>
<LI>a h-s (Mollier) chart
<LI>and place and isobar, an isotherm, and isochor of steam on the chart
</UL>https://www.maplesoft.com/applications/view.aspx?SID=154034&ref=FeedFri, 04 Mar 2016 05:00:00 ZProf. Valery OchkovProf. Valery OchkovThermal Efficiency of the Combined (Binary) Cycle
https://www.maplesoft.com/applications/view.aspx?SID=154035&ref=Feed
This application calculates the thermal efficiency of a steam turbine (based on a Rankine cycle), combined with a gas turbine based on the Brayton Cycle)<img src="https://www.maplesoft.com/view.aspx?si=154035/14-1-GSU.PNG" alt="Thermal Efficiency of the Combined (Binary) Cycle" style="max-width: 25%;" align="left"/>This application calculates the thermal efficiency of a steam turbine (based on a Rankine cycle), combined with a gas turbine based on the Brayton Cycle)https://www.maplesoft.com/applications/view.aspx?SID=154035&ref=FeedFri, 04 Mar 2016 05:00:00 ZProf. Valery OchkovProf. Valery OchkovCalculation of pressure drop in the horizontal pipeline
https://www.maplesoft.com/applications/view.aspx?SID=154036&ref=Feed
This application calculates the of pressure drop of water in a horizontal pipeline. Transport properties (i.e. the density and viscosity) are calculated using temperature and pressure using Maple's <A HREF="http://www.maplesoft.com/support/help/Maple/view.aspx?path=ThermophysicalData">ThermophysicalData package</A>.<img src="https://www.maplesoft.com/view.aspx?si=154036/16-6-pipe-drop-loss.png" alt="Calculation of pressure drop in the horizontal pipeline" style="max-width: 25%;" align="left"/>This application calculates the of pressure drop of water in a horizontal pipeline. Transport properties (i.e. the density and viscosity) are calculated using temperature and pressure using Maple's <A HREF="http://www.maplesoft.com/support/help/Maple/view.aspx?path=ThermophysicalData">ThermophysicalData package</A>.https://www.maplesoft.com/applications/view.aspx?SID=154036&ref=FeedFri, 04 Mar 2016 05:00:00 ZProf. Valery OchkovProf. Valery Ochkov