Distributed Energy Systems (DES) Design, Optimization and Analysis

A special issue of Processes (ISSN 2227-9717). This special issue belongs to the section "Energy Systems".

Deadline for manuscript submissions: closed (30 April 2024) | Viewed by 1025

Special Issue Editors

Department of Energy and Power Engineering, Tsinghua University, Beijing 100084, China
Interests: distributed energy system; refrigerant; energy storage; CCHP; ORC

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Guest Editor
School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China
Interests: integrated energy system; organic Rankine cycle; fuel cell
Special Issues, Collections and Topics in MDPI journals
School of Mechanical Engineering, Tianjin University of Commerce, Tianjin 300134, China
Interests: heat pump; refrigeration; heating; renewable energy; multi-energy complement; distributed energy system
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

A Distributed Energy System (DES), which differs from the traditional centralized energy system, is generally defined as the technology that generates electricity at or near where it will be used. A DES is usually relatively small-scale and may not be connected to the electric grid. Compared to traditional centralized energy systems, the advantages of DESs include high energy efficiency, an environmentally friendly process, high compatibility with renewable energy sources and energy storage technologies, and so on. Thus, the DES has played a significant role in the field of energy today. The system design and integration are the important research topics of DESs due to the various DES technologies, which include the fossil technologies (fuel cells, microturbines, and internal combustion engines) and renewable energies (solar energy, wind, geothermal energy, and biomass). The optimization and control strategy are also important for a DES, because the DES is usually combined with energy management and storage systems.

This Special Issue on “Distributed Energy Systems (DES) Design, Optimization and Analysis” seeks high-quality works—including original research articles, review articles, and other forms—focusing on the novel advances for any DES technologies. Suggested topics include but are not limited to:

  • Advanced distributed energy technologies, including fuel cells, microturbines, internal combustion engines, boilers, heat pumps, chillers and technologies based on renewable energy (solar energy, wind, geothermal energy, and biomass) and industrial waste heat.
  • Advanced design and integration methods for distributed energy technologies.
  • Combined Cooling, Heating, and Power (CCHP) systems based on distributed energy technologies.
  • Modeling and optimization methods for distributed energy systems.
  • Distributed energy systems with advanced energy storage technologies.
  • Intelligent control strategy and method for integrated distributed energy systems.
  • Life cycle assessment of energy consumption and emission performance for distributed energy systems.
  • Low-carbon and economic evaluation for distributed energy systems.

Dr. Xiaoye Dai
Dr. Yongzhen Wang
Dr. Baomin Dai
Guest Editors

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 submissions that pass pre-check are 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. Processes is an international peer-reviewed open access monthly 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 2400 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

  • distributed energy system
  • renewable energy
  • energy storage
  • CCHP

Published Papers (1 paper)

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Research

13 pages, 2703 KiB  
Article
Experimental and Simulation Analysis of Siloxane Mixtures Used in Organic Rankine Cycle with Thermal Stability Limits
by Wenhuan Wang, Lei Tian, Lin Shi and Xiaoye Dai
Processes 2023, 11(7), 2108; https://doi.org/10.3390/pr11072108 - 14 Jul 2023
Viewed by 595
Abstract
The thermal stability of siloxanes has significant influence on the selection of working fluid and the performance of organic Rankine cycle systems. In this study, a thermal decomposition experimental apparatus was designed to measure the thermal stability of hexamethyldisiloxane (MM), octamethyltrisiloxane (MDM), and [...] Read more.
The thermal stability of siloxanes has significant influence on the selection of working fluid and the performance of organic Rankine cycle systems. In this study, a thermal decomposition experimental apparatus was designed to measure the thermal stability of hexamethyldisiloxane (MM), octamethyltrisiloxane (MDM), and their mixtures; a reaction kinetics model based on first order reaction theory was built to analyze the thermal stability of siloxane mixture fluids in a long operation period. And the influence of the mass fraction and evaporation temperature on the net power and thermal efficiency of the system was analyzed under the constraints of thermal stability. The results showed that the thermal stability of MDM was worse than that of MM, and the mixture of MM and MDM had significant inhibition effects on the de-composition of pure fluids. The activation energy of decomposition reaction was 50.50 kJ/mol, and the pre-exponential factor was 5.80 × 10−3 s−1. With the evaporation temperature limit, the net power and thermal efficiency were both lower than those without the evaporation temperature limit. Comparing the obvious decrease in the thermal efficiency, the change of the net power was limited. Siloxane mixtures emerged as a superior choice for ORC systems in the conditions of this paper. MM/MDM (0.6/0.4) improved the net power and heat efficiency of the system by 8.1% and 1.7%, respectively, comparing with that of the pure working fluids. Full article
(This article belongs to the Special Issue Distributed Energy Systems (DES) Design, Optimization and Analysis)
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