low temperature turbine

Within one year, the micro steam turbine in Oberhausen can produce up to 300,000 kW of electricity and, at the same time, save up to 10 percent of primary energy. The sophisticated use of the energy means that evo avoids around 90 tonnes of carbon dioxide annually and can thus make a considerable contribution to climate protection and reduce

In this study, low temperature Organic Rankine Cycle (ORC) systems with single and two-stage turbine are proposed for the production of electricity. The refrigerant R-134a is selected as working fluid based on peak temperature of the cycle for solar and geothermal applications. The design criteria of ORC system is introduced and explained

As in the real world, the Turbine Dukes simulate the fact that the air conditioning system struggles to maintain cabin temperature when operating at higher flight levels. This can result in the cabin temperature dropping well below freezing, if

Technically, this means wind turbines may fail if temperatures fall to extremely cold weather — even with proper warming equipment installed. But this doesn''t appear to be the case in Texas

Exhaust: After passing through the turbine blades, the steam exits the turbine at a lower pressure and temperature. This low-pressure steam is then condensed back into water and returned to the boiler to be reheated and

All turbines, that have high-pressure turbine and low-pressure turbines use a steam reheat between these stages. Reheat allows to deliver more of the heat at a temperature close to the peak of the cycle (i.e. thermal efficiency increases).

Introduction. The organic Rankine cycle is a special variation of the Rankine cycle, which is named for its use of organic, high-molecular-mass fluids whose vaporization

The low-temperature turbine flowmeter is used as a liquid nitrogen flowmeter, which can work at a low temperature of -196°C (-320.8 °F). Liquid Nitrogen Flow Meter''s Turbine sensor structure at ultra-low temperature (-196℃) is made of special customized material. Realize the instantaneous and cumulative flow monitoring of liquid

This study aims to design and optimize an organic Rankine cycle (ORC) and radial inflow turbine to recover waste heat from a polymer exchange membrane (PEM) fuel cell. ORCs can take advantage of low-quality waste heat sources. Developments in this area have seen previously unusable, small waste heat sources become available for

The demonstration turbine will be operated separately with two-phase flow and with vapor flow to demonstrate performance and applicability to the entire range of low temperature geothermal resources. The vapor leaving the turbine is condensed in a plate-fin refrigerant condenser.

Turbine. A steam turbine with the case opened. A turbine ( / ˈtɜːrbaɪn / or / ˈtɜːrbɪn /) (from the Greek τύρβη, tyrbē, or Latin turbo, meaning vortex) [1] [2] is a rotary mechanical device that extracts energy from a fluid flow and converts it into useful work. The work produced can be used for generating electrical power when

Steam power plant is suitable for high temperature heat recovery in cement factory but ORC, OFC and KCS are the more suitable configurations for low

Organic Rankine cycle (ORC) has been widely utilised in electricity generation due to its attractive thermodynamic performance, compact system structure,

Ultra-low-temperature ORC Medium-temperature ORC High-temperature ORC Heat source temperature ≦150 The zeotropic turbine has a lower efficiency over the entire operating range compared with CO 2 turbine. Lin et al. [108] R227ea/R236fa, R227ea/R123

Expansion machinery is widely used for producing refrigeration in low temperature processing. Either reciprocating or turbomachinery is employed, depending principally on the combination of volume flow and pressure conditions

The cycle flow of the medium and low temperature power system using NH 3 − H 2 O mixed working fluid is shown in Fig. 2. The system consists of generator, heat exchanger, steam turbine, absorber, throttle valve and pump. After the concentrated ammonia solution is cooled by the cooling water, it is pressurized from state 1 to state 2

Theory of Steam Turbines – Thermodynamics. In 1859, a Scottish engineer, William John Macquorn Rankine advanced the study of heat engines by publishing the " Manual of the Steam Engine and Other Prime Movers ". Rankine developed a complete theory of the steam engine and indeed of all heat engines. Together with Rudolf Clausius

In power plants, a special type of oil is used for the lubrication and cooling of turbine bearings. The temperature of the cooling oil used for heat extraction from the bearings varies between 78 and 90 °C. Using waste heat from this oil will be a great advantage in terms of heat recovery. The overall thermal efficiency of gas turbine in

As stated prior, due to the wind turbine locations they are subjected to extreme temperatures swings, typically from -30ºC (-22ºF) to 55ºC (131ºF). All of the electronic equipment and circuits installed in the turbine must be designed to operate reliably over the entire temperature range. As a source of backup power is essential, the

Abstract: In this study, low temperature Organic Rankine Cycle (ORC) systems with single and two-stage turbine are proposed for the production of electricity.

Organic Rankine Cycle (ORC) technology can generate electric power efficiently by heat sources of the the middle low temperature. Turboden S.p.A. who has superior Organic Rankine Cycle (ORC) technology,

The potential for power production from low temperature dif ference power cycles is quite large. In the U.S. alone, the total technical market poten tial for bottoming cycles on industrial installations which existed in 1979 (not including power plants) exceeded 3 million kilowatts (Ref.1). Over 3/4 of the solar energy incident on the earth is

Present study deals with parametric optimization and performance evaluation of an air-cooled organic Rankine system for the low-temperature geothermal source, especially considering the effects of turbine isentropic efficiency. Turbine isentropic efficiency is predicted with turbine size parameter and volume ratio, using the well

CFD analyses of turbine blade using Fluent yield the temperature and pressure distribution at the blade surface. The fluid domain is characterized by the solution of the Reynolds-averaged Navier–Stokes (RANS) equations (of mass, momentum, and energy) and supplementary equations of the assumed turbulence model (k-SST).

The generator vapor is separated into liquid and vapor in KCS and the resulted power is low. Out of two ORC, heat recovery in OFC is more than ORC and so the exhaust gas temperature is 81.92 °C compared to 97.76 °C in ORC. The highest cycle efficiency is resulted in ORC and more power and exergy efficiency is with OFC.

Abstract. This study presents the development of a design method that has been extended to the design of radial-inflow turbines operating in organic Rankine

Steam turbine. The rotor of a modern steam turbine used in a power plant. A steam turbine is a machine that extracts thermal energy from pressurized steam and uses it to do mechanical work on a rotating output shaft. Its modern manifestation was invented by Charles Parsons in 1884. [1] [2] Fabrication of a modern steam turbine involves

Pucher, G, & Allan, WD. "Turbine Fuel Ignition and Combustion Facility for Extremely Low Temperature Conditions." Proceedings of the ASME Turbo Expo 2004: Power for Land, Sea, and Air.Volume 1: Turbo Expo 2004.Vienna, Austria. June 14–17, 2004. pp. 385

An Organic Rankine Cycle (ORC) system is a closed thermodynamic cycle used for power production from low to medium-high temperature heat sources ranging from 80 to 400°C and for small-medium

This work investigates wide range of high density organic working fluids suitable for low temperature heat sources such as solar energy (less than 100 C) to

This paper presents a new methodology that integrates the ORC cycle analysis with modeling of an efficient small scale subsonic axial turbine at low

The decreased condensation temperature of the low-temperature stage makes it suitable that the evaporation temperature of low-temperature stage is lower than −40 C [9]. Rogdakis et al. [10] numerically studied a two-stage NH 3 /H 2 O absorption refrigeration system, which can be used to produce refrigeration temperatures with

1 Electricity generation from low temperature industrial excess heat – an opportunity for the steel industry Maria T Johanssona,b*, Mats Söderström a a Department of Management and Engineering, Division of Energy Systems, Linköping University, SE-58183

In this study, low temperature Organic Rankine Cycle (ORC) systems with single and two-stage turbine are proposed for the production of electricity. The

Rahman et. al (2011) - Thermodynamic performance analysis of gas-turbine power-plant. De Sa & Zubaidy (2011) proposed an empirical relationship for a 265 MW gas turbine. This gives us a rough rule of thumb of a 1% efficiency reduction and 5% reduction in output for every 10 °C change. For every K rise in ambient temperature above ISO

This work developed a novel efficient small-scale two-stage axial turbine for low temperature and small scale organic Rankine cycle systems. In this work, an integrated methodology of the preliminary mean-line design, three-dimensional computational fluid dynamics analysis and organic Rankine cycle modelling using

This study presents the development of a design method that has been extended to the design of radial-inflow turbines operating in organic Rankine cycles (ORC). Both the conventional design method and the circulation method available in the literature have been reviewed. The two main limitations of the current circulation method that make

The homogenization treatments of nickel-based superalloys are done at temperatures around 90∼95% of melting points, i.e., 1260–1340 °C, for 2–4 h. There are gradual changes in the trend of homogenizing superalloys, involving multiple steps and very long durations exceeding the times required for complete aging.

This paper presents a new methodology that integrates the ORC cycle analysis with modeling of an efficient small scale subsonic axial turbine at low temperature heat sources using wide range of