Special Issue "Small-Scale Energy Systems with Gas Turbines and Heat Pumps"

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "Thermal Management".

Deadline for manuscript submissions: 29 February 2020.

Special Issue Editor

Prof. Dr. Satoru Okamoto
E-Mail Website
Guest Editor
Shimane Univ, Interdisciplinary Graduate School of Science and Engineering, Matsue, Shimane, Japan
Interests: flow-induced vibrations, small-scale energy systems with gas turbines and heat pumps, and experimental fluid dynamics and heat transfer

Special Issue Information

Dear Colleagues,

The purpose of this Special Issue is to provide information on innovation, research, development and demonstration related to “Small-Scale Energy Systems with Gas Turbines and Heat Pumps.” The main focus of this Special Issue are conventional and non-conventional cooling, heating, and power technologies with gas turbines and heat pumps. Papers are solicited in areas including, but not limited to:

  • Air-conditioning, refrigeration and heat pump systems
  • Ab- and ad-sorption refrigeration machines and heat pumps
  • Combined cycle, CHP, and CCHP with gas turbines
  • Energy storage technology for gas turbines and heat pumps
  • Renewable energy for gas turbines and heat pumps
  • Design and modeling small-scale energy systems with gas turbines and heat pumps
  • Evaluation and optimization of small-scale energy systems with gas turbines and heat pumps
  • Economic and ecological analysis of small-scale energy systems with gas turbines and heat pumps
  • Innovative small-scale energy systems with gas turbines and heat pumps
  • Small-scale energy system applications

Objectives

Authors are invited to contribute to increasing international cooperation, as well as the understanding and promotion of efforts and disciplines in the area of “Small-Scale Energy Systems with Gas Turbines and Heat Pumps”. The dissemination of knowledge by presenting research results, new developments, and novel concepts in “Small-Scale Energy Systems with Gas Turbines and Heat Pumps” will serve as the foundation from which this area will be developed.

A variety of topics are available for presentations, allowing authors flexibility.

Prof. Emer. Dr. Satoru Okamoto
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Energies is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1800 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Air-conditioning, refrigeration and heat pump systems
  • Ab- and ad-sorption refrigeration machines and heat pumps
  • Combined cycle, CHP, and CCHP with gas turbines
  • Energy storage technology for gas turbines and heat pumps
  • Renewable energy for gas turbines and heat pumps
  • Design and modeling the small-scale energy systems with gas turbines and heat pumps
  • Evaluation and optimization of small-scale energy systems with gas turbines and heat pumps
  • Economic and ecologic analysis of small-scale energy systems with gas turbines and heat pumps
  • Innovative small-scale energy systems with gas turbines and heat pumps
  • Small-scale energy system applications

Published Papers (2 papers)

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Research

Open AccessArticle
Gas Turbine Cycle with External Combustion Chamber for Prosumer and Distributed Energy Systems
Energies 2019, 12(18), 3501; https://doi.org/10.3390/en12183501 - 11 Sep 2019
Abstract
The use of various biofuels, usually of relatively small Lower Heating Value (LHV), affects the gas turbine efficiency. The present paper shows that applying the proposed air by-pass system of the combustor at the turbine exit causes tan increase of efficiency of the [...] Read more.
The use of various biofuels, usually of relatively small Lower Heating Value (LHV), affects the gas turbine efficiency. The present paper shows that applying the proposed air by-pass system of the combustor at the turbine exit causes tan increase of efficiency of the turbine cycle increased by a few points. This solution appears very promising also in combined gas/steam turbine power plants. The comparison of a turbine set operating according to an open cycle with partial bypassing of external combustion chamber at the turbine exit (a new solution) and, for comparison, a turbine set operating according to an open cycle with a regenerator. The calculations were carried out for different fuels: gas from biomass gasification (LHV = 4.4 MJ/kg), biogas (LHV = 17.5 MJ/kg) and methane (LHV = 50 MJ/kg). It is demonstrated that analyzed solution enables construction of several kW power microturbines that might be used on a local scale. Such turbines, operated by prosumer’s type of organizations may change the efficiency of electricity generation on a country-wide scale evidently contributing to the sustainability of power generation, as well as the economy as a whole. Full article
(This article belongs to the Special Issue Small-Scale Energy Systems with Gas Turbines and Heat Pumps)
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Open AccessArticle
Harmonisation of Coolant Flow Pattern with Wake of Stator Vane to Improve Sealing Effectiveness Using a Wave-Shaped Rim Seal
Energies 2019, 12(6), 1060; https://doi.org/10.3390/en12061060 - 19 Mar 2019
Abstract
The rim seal of the gas turbine is intended to protect the material of the turbine disk from hot combustion gases. The study of the rim seal structure is important to minimise the coolant flow and maximise the sealing effect. In this paper, [...] Read more.
The rim seal of the gas turbine is intended to protect the material of the turbine disk from hot combustion gases. The study of the rim seal structure is important to minimise the coolant flow and maximise the sealing effect. In this paper, a wave-shaped rim seal for stator disks is proposed and its effect is confirmed by numerical analysis. To characterise the flow phenomena near the wave-shaped rim seal, a simplified model of the wave-shaped rim seal (Type 1 model), which excludes the rotor blade and stator vane, is analysed and compared with the conventional rim seal. Then, through analysis of the wave-shaped rim seal geometry (Type 2 model), which includes the rotor blade and stator vane, a reduction in egress and ingress flow was observed owing to the wave-shaped rim seal, and the sealing effectiveness on the stator disk of turbine was increased by up to 3.8%. Implementation of the wave-shape geometry in the radial seal is a novel choice for turbine designers to consider in future for better-performing and more-efficient turbines. Full article
(This article belongs to the Special Issue Small-Scale Energy Systems with Gas Turbines and Heat Pumps)
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