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Energies, Volume 5, Issue 4

April 2012 - 22 articles

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Articles (22)

  • Article
  • Open Access
17 Citations
7,154 Views
26 Pages

24 April 2012

This paper introduces the “Energy-Environmental Efficiency” concept of building a low-carbon dispatch model of wind-incorporated power systems from the perspective of environmental protection and low-carbon dispatch promotion based on the existing ec...

  • Article
  • Open Access
42 Citations
7,894 Views
21 Pages

An Integrated Performance Evaluation Model for the Photovoltaics Industry

  • Amy H. I. Lee,
  • Chun Yu Lin,
  • He-Yau Kang and
  • Wen Hsin Lee

24 April 2012

Global warming is causing damaging changes to climate around the World. For environmental protection and natural resource scarcity, alternative forms of energy, such as wind energy, fire energy, hydropower energy, geothermal energy, solar energy, bio...

  • Article
  • Open Access
5 Citations
8,103 Views
25 Pages

23 April 2012

For the Taiwan Power Company (Taipower), the margins of coordination times between the lateral circuit breakers (LCB) of underground 4-way automatic line switches and the protection equipment of high voltage customers are often too small. This could...

  • Article
  • Open Access
48 Citations
9,684 Views
24 Pages

23 April 2012

The major contribution of this paper is to propose a Fuzzy Logic Global Power Management Strategy for Hybrid Electric Vehicles (HEVs) that are driven by the PM-EVT (PM machine—Electric Variable Transmission) powertrain, such that the PM-EVT will have...

  • Article
  • Open Access
64 Citations
12,008 Views
16 Pages

23 April 2012

Large scale biofuel production will be possible only if significant quantities of biomass feedstock can be stored, transported, and processed in an economic and sustainable manner. Torrefaction has the potential to significantly reduce the cost of tr...

  • Article
  • Open Access
48 Citations
8,455 Views
14 Pages

Repeated-Batch Ethanol Production from Sweet Sorghum Juice by Saccharomyces cerevisiae Immobilized on Sweet Sorghum Stalks

  • Pongthep Ariyajaroenwong,
  • Pattana Laopaiboon,
  • Prasit Jaisil and
  • Lakkana Laopaiboon

23 April 2012

Sweet sorghum stalks were used as a low cost carrier for immobilization of Saccharomyces cerevisiae NP 01 to produce ethanol from sweet sorghum juice. The effects on ethanol production of carrier size (6 × 6 × 6 to 20 × 20 × 20 mm3) and initial cell...

  • Article
  • Open Access
42 Citations
7,305 Views
16 Pages

Field Experiments of PV-Thermal Collectors for Residential Application in Bangkok

  • Thipjak Nualboonrueng,
  • Pongpith Tuenpusa,
  • Yuki Ueda and
  • Atsushi Akisawa

23 April 2012

This study presents experimental results on Photovoltaic-thermal (PVT) solar systems, the commercial photovoltaic (PV) panels used as solar absorbers in PVT collectors, which are amorphous and multi-crystalline silicon. Testing was done with outdoor...

  • Article
  • Open Access
23 Citations
8,892 Views
15 Pages

20 April 2012

In this study, two types of floating offshore wind turbine (FOWT) systems were proposed: a traditional tension leg platform (TLP) type and a new TLP type with additional mooring chains. They were both based on the National Renewable Energy Laboratory...

  • Article
  • Open Access
18 Citations
7,694 Views
18 Pages

Simulation of the Effect of Water Temperature on Domestic Biomass Boiler Performance

  • Miguel A. Gómez,
  • Roberto Comesaña,
  • Miguel A. Álvarez Feijoo and
  • Pablo Eguía

19 April 2012

This paper presents a methodology to simulate the combustion of fixed beds of biomass particles using computational fluid dynamics (CFD) techniques. The models presented were used in the simulation of a domestic pellet boiler working under operating...

  • Article
  • Open Access
21 Citations
8,438 Views
19 Pages

Supercritical Transesterification of Palm Oil and Hydrated Ethanol in a Fixed Bed Reactor with a CaO/Al2O3 Catalyst

  • Ruengwit Sawangkeaw,
  • Pornicha Tejvirat,
  • Chawalit Ngamcharassrivichai and
  • Somkiat Ngamprasertsith

19 April 2012

Biodiesel production from palm oil and hydrated ethanol in a fixed bed reactor using CaO/Al2O3 as the catalyst was investigated and optimized using response surface methodology. The investigated parameters were temperature, pressure, ethanol/palm oil...

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Energies - ISSN 1996-1073