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Advanced energy saving in distillation process with self-heat recuperation technology
Matsuda, Kazuo; Kawazuishi, Kenichi; Kansha, Yasuki; … - In: Energy 36 (2011) 8, pp. 4640-4645
consists of the reflux and the overhead product streams. A compressor (compressor-1) treats the reflux stream and the other … compressor (compressor-2) treats the overhead stream. The reboiler duty is supplied by the recuperated heat of the discharged … stream from compressor-1 and the feed heater duty is supplied by that from compressor-2, by adiabatic compressions. It could …
Persistent link: https://www.econbiz.de/10011053380
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Corner Separation Control by Boundary Layer Suction Applied to a Highly Loaded Axial Compressor Cascade
Liu, Yangwei; Sun, Jinjing; Lu, Lipeng - In: Energies 7 (2014) 12, pp. 7994-8007
in turbomachinery. Numerical studies have been performed under both design and off-design flow conditions to investigate … the effects of boundary layer suction (BLS) on corner separation in a highly loaded compressor cascade. Two new BLS slot …
Persistent link: https://www.econbiz.de/10011084988
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Quantum-phase transition in a XY model
Pires, A.S.T. - In: Physica A: Statistical Mechanics and its Applications 373 (2007) C, pp. 387-391
In this paper we study quantum-phase transition in the one-dimensional XY model with an XY easy-plane single ion anisotropy. We use the path-integral formalism, but consider the effect of quantum fluctuations, which renormalize the parameters of the system, using the self-consistent harmonic...
Persistent link: https://www.econbiz.de/10010588882
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Computational analysis of performance and flow investigation on wells turbine for wave energy conversion
Dhanasekaran, T.S.; Govardhan, M. - In: Renewable Energy 30 (2005) 14, pp. 2129-2147
Wells turbine is a self-rectifying airflow turbine capable of converting pneumatic power of the periodically reversing air stream in oscillating water column into mechanical energy. This paper reports the computational analysis on performance and aerodynamics of Wells turbine with the NACA 0021...
Persistent link: https://www.econbiz.de/10010806167
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On applicability of reciprocating flow turbines developed for wave power to tidal power conversion
Takenouchi, K.; Okuma, K.; Furukawa, A.; Setoguchi, T. - In: Renewable Energy 31 (2006) 2, pp. 209-223
Tidal power generation with reciprocating turbines in a simple system is investigated on a performance simulation in order to enlarge the capability of practical use of tidal power with extra-low head and time-varying energy density characteristics. Four reciprocating turbines, which are two...
Persistent link: https://www.econbiz.de/10010806735
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The European programme to develop the Wells air turbine for applications in wave energy
White, P.R.S. - In: Renewable Energy 9 (1996) 1, pp. 1207-1212
The European Wave Energy Pilot Plants currently under construction are utilising Wells air turbines to convert oscillating pneumatic energy within the converters to unidirectional energy of rotation for direct coupling to electrical generators. The Wells turbine has also been proposed for future...
Persistent link: https://www.econbiz.de/10010803732
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Hysteretic characteristics of Wells turbine for wave power conversion
Setoguchi, T.; Kinoue, Y.; Kim, T.H.; Kaneko, K.; Inoue, M. - In: Renewable Energy 28 (2003) 13, pp. 2113-2127
A Wells turbine blade for wave power conversion has hysteretic characteristics in a reciprocating flow. The hysteretic loop is opposite to the well-known dynamic stall of an airfoil. In this paper, the mechanism of the hysteretic behavior was elucidated by an unsteady 3-dimensional Navier-Stokes...
Persistent link: https://www.econbiz.de/10010805104
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Modeling the Impact of the Affordable Care Act and the Individual Mandate on Californians
Roby, Dylan; Watson, Greg; Jacobs, Ken; Graham-Squire, Dave - In: Journal of Family and Economic Issues 34 (2013) 1, pp. 16-28
The Patient Protection and Affordable Care Act (ACA) was designed to provide health insurance to uninsured or underinsured individuals. We used the California Simulation of Insurance Markets (CalSIM) model to predict the experience of consumers in California, who will be faced with new insurance...
Persistent link: https://www.econbiz.de/10010987862
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Computational Thinking of Service Systems: Dynamics and Adaptiveness Modeling
Qiu, Robin G. - In: Service Science 1 (2009) 1, pp. 42-55
economically, this research proposes a <i>computational thinking</i> approach to modeling of the dynamics and adaptiveness of a <i …
Persistent link: https://www.econbiz.de/10010990667
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Service Scaling on Hyper-Networks
Chan, Wai Kin Victor; Hsu, Cheng - In: Service Science 1 (2009) 1, pp. 17-31
Service scaling is concerned with service productivity, and hyper-networks with the design of service scaling. This new model uniquely explains Internet-based economic activities, such as e-commerce/e-business and social networking, which are quintessential new genres of service for Knowledge...
Persistent link: https://www.econbiz.de/10010990672