Organic Rankine Cycle Articles

This plant has an electrical output of 800 kW and a thermal power of 760 KW. At the biogas plant in Trechwitz, an unconventional heat utilisation model was installed. The waste heat from the CHP unit is used to generate power in an ORC unit (Organic Rankine Cycle). The heat goes into an evaporator, and the operating liquid is converted into pressurised steam. The steam is depressurised by ...

Jan. 15, 2015

By Wolf Power Systems GmbH

Gross Power Output Avg: 50kWe Thermal Heat Input: 700kWt Hot Water Input Range: 105°C Hot Water Flow: 10.1 l/s Average Ambient Temp: 12°C The Green Machine was commissioned at a geothermal well in Romania. The machine produces 50kW (gross) of electricity from the geothermal hot water (216°F/102°C) without any fuel or emissions. To further increase the ...

Nov. 20, 2014

By ElectraTherm

In the present work, a new technique is proposed for feedwater heating in Low Pressure (LP) turbine section of regenerative Rankine cycle. Main objective of this technique is to minimise exergy destruction in feedwater heating. The proposed technique comprised of using absorption heat boosters i.e. Absorption Heat Pump (AHP) and Absorption Heat Transformer (AHT) with LiBr–water as the working ...

May 27, 2013

By Inderscience Publishers

Energy–Utilisation Diagram (EUD) has been used to identify exergy loss in general process units, whereas Power Availability Diagram (PAD) provides the difference between exergy changes of two pressure exchangers. Two modifications of the original PAD are proposed for better exergy loss visualisation. Firstly, the energy donor curve is shifted to the location of energy acceptor. Secondly, arrows ...

May 27, 2013

By Inderscience Publishers

Biogas/Heat-to-Power Application using a Dreyer & Bosse CHP power unit Location: Trechwitz, Germany Site Gross Power Output Range 500Kwe + 30-35kWe from Electratherm ORC Thermal Heat Input Range: ?375-450kWt   Hot Water Input Range:? 90-95°C ...

Jul. 1, 2012

By Wolf Power Systems GmbH

This paper presents the first and second laws of thermodynamics analysis for organic Rankine cycles (ORCs), using dry organic fluids as the working fluids. The dry organic fluids for this study were R227ea, RC318, R236fa, Isobutane, R600a, R245fa, HFE7000, R123 and R113. Effects of the operating parameters such as turbine inlet temperature and pressure on the thermal efficiency, exergy ...

May 19, 2009

By Inderscience Publishers

Applicability of the HYSYS process simulation package to thermodynamic modelling and analysis of Rankine cycle steam power plants, using first and second law analyses, has been evaluated. Theoretical Rankine cycles, and more realistic cycles based on power plants modelled in other studies, were simulated. Energy, exergy and efficiency values determined from the simulations were compared to those ...

Jan. 13, 2008

By Inderscience Publishers

Consumers pay more for electricity than necessary partly because commercial power plant operating criteria are not universally valid. Although such plants are commonly designed to provide electricity at least cost for given conditions, operating criteria lack a rigorous thermodynamic basis. The current empiricism alone costs US consumers billions of dollars per year. This dilemma exists because ...

Jun. 27, 2005

By Inderscience Publishers

A novel power generation cycle is proposed in this paper taking hydrogen as fuel and using steam generated by hydrogen firing as working fluid. The progress of the development work and side issues such as the application of hydrogen combustion turbines to environmentally clean fossil fuel power plants for early commercialisation of the system are reviewed. We propose the hydrogen-fired Rankine ...

Nov. 14, 2004

By Inderscience Publishers