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Entropy
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Integrated Cooling, Heating and Power Systems
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Integrated Cooling, Heating and Power Systems

A special issue of Entropy (ISSN 1099-4300). This special issue belongs to the section "Thermodynamics".

Deadline for manuscript submissions: closed (25 May 2022) | Viewed by 10085

Special Issue Editors

Prof. Dr. Jiangjiang Wang

E-Mail Website
Guest Editor
School of Energy, Power and Mechanical Engineering, North China Electric Power University, Baoding 071003, Hebei, China
Interests: combined cooling, heating and power system; integrated energy system; system optimization; thermodyanmicis
Prof. Dr. Noam Lior

E-Mail Website
Guest Editor
Department of Mechanical Engineering and Applied Mechanics, University of Pennsylvania, Philadelphia, PA 19104, USA
Interests: energy conversion, combustion, and thermodynamics; water desalination; sustainability science; heat transfer and fluid mechanics

Special Issue Information

Dear Colleagues,

Integrated cooling, heating, and power systems are emerging as key technologies to improve renewable energies’ penetration into conventional energy systems and to address the growing cooling, heating, and electricity demands for energy and environmental issues. The integration of multiple forms of energy complicates the design and operation management of integrated energy systems. 

This Special Issue aims to provide a platform for a wide range of researchers to share a comprehensive overview of innovative ideas, concepts, and designs, performance optimization, and applications that are being pursued to develop new integrated cooling, heating, and power technologies and systems, as well as other related research subjects such as thermodynamic analysis, economic and market analysis, regional energy planning, and operation and control strategies, etc. The latest research on this topic will provide readers with novel ideas and methods for devising next-generation energy systems for use in practical applications. 

In this Special Issue, submissions related but not limited to the following topics are welcome:

  • Integrated heating, cooling, and electricity systems
  • Distributed energy system
  • District heating and cooling
  • Renewable energy integration technologies
  • Energy storages
  • Regional energy planning
  • Operation and control strategies
  • Entropy generation and exergy analysis

Prof. Dr. Jiangjiang Wang
Prof. Dr. Noam Lior
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. Entropy 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 2600 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

  • Integrated energy system
  • Combined cooling, heating, and power system
  • System optimization
  • System integration
  • Energy management strategy
  • Energy plan
  • Thermodynamic analysis
  • Economic analysis

Published Papers (3 papers)

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Research

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19 pages, 37363 KiB  
Article
Thermodynamic Analysis of a Solid Oxide Fuel Cell Based Combined Cooling, Heating, and Power System Integrated with Biomass Gasification
by Zhiheng Cui, Jiangjiang Wang and Noam Lior
Entropy 2021, 23(8), 1029; https://doi.org/10.3390/e23081029 - 10 Aug 2021
Cited by 8 | Viewed by 2666
Abstract
A novel cooling, heating, and power system integrated with a solid oxide fuel cell and biomass gasification was proposed and analyzed. The thermodynamic models of components and evaluation indicators were established to present energetic and exergetic analysis. After the validations of thermodynamic models, [...] Read more.
A novel cooling, heating, and power system integrated with a solid oxide fuel cell and biomass gasification was proposed and analyzed. The thermodynamic models of components and evaluation indicators were established to present energetic and exergetic analysis. After the validations of thermodynamic models, the system performances under design work conditions were evaluated. The proposed system’s electrical, energy, and exergy efficiencies reached up to 52.6%, 68.0%, and 43.9%, respectively. The gasifier and fuel cell stack were the most significant components of exergy destruction in this system, accounting for 41.0% and 15.1%, respectively, which were primarily caused by the gasification and electrochemical reactions’ irreversibility. The influences of the key parameters of the ratio of steam to biomass mass flow rate (S/B), the biomass flow rate (Mbio), and the temperature and pressure of the fuel cell (Top and Psofc) on system energy performances were analyzed: doubling S/B (from 0.5 to 1.0) reduced the energy efficiency by 5.3%, while increasing the electrical efficiency by 4.6% (from 52.6% to 55.0%) and raising the biomass mass flow rate by 40% increased the energy and exergy efficiencies by 2.4% and 2.1%, respectively. When raising the SOFC operating temperature by 31.3%, the energy and exergy efficiencies rose by 61.2% (from 50.0% to 80.6%) and 45.1% (from 32.8% to 47.6%), respectively, but this likely would result in a higher operating cost. Increasing the SOFC pressure from 2 to 7 bar increased the electrical efficiency by 10.6%, but additional energy for pumping and compression was consumed. Full article
(This article belongs to the Special Issue Integrated Cooling, Heating and Power Systems)
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18 pages, 4448 KiB  
Article
Multi-Objective Optimization and Performance Assessments of an Integrated Energy System Based on Fuel, Wind and Solar Energies
by Jingyun Li and Hong Zhao
Entropy 2021, 23(4), 431; https://doi.org/10.3390/e23040431 - 06 Apr 2021
Cited by 14 | Viewed by 2349
Abstract
The integrated energy system (IES) is an efficient method for improving the utilization of renewable energy. This paper proposes an IES based on fuel, wind and solar energies, following an optimization study focused on determining optimal device capacities. The study included gas turbines, [...] Read more.
The integrated energy system (IES) is an efficient method for improving the utilization of renewable energy. This paper proposes an IES based on fuel, wind and solar energies, following an optimization study focused on determining optimal device capacities. The study included gas turbines, wind turbines, solar photovoltaic panels, ground source heat pumps, absorption chillers/heaters, batteries, and thermal storage. Objectives were incorporated into the optimization model for the overall performance of the IES; these included the primary energy saving rate, annual cost-saving rate, and carbon dioxide emission reduction. Then, the nondominated sorting genetic algorithm II was employed to solve the optimization problem for multiple objectives. Ultimately, the verification and sensitivity analyses of the optimization method were achieved by a case study of hospital buildings in Harbin. The optimization results indicated a primary energy saving rate, annual cost saving rate, and carbon dioxide emission reduction rate of 17.3%, 39.8%, and 53.8%, respectively. The total installed capacity for renewable energy generation accounted for 64.5% of performance optimization. Moreover, the price of natural gas affected the economic indicators of the IES–but failed to impact energy consumption indicators. Full article
(This article belongs to the Special Issue Integrated Cooling, Heating and Power Systems)
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Review

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25 pages, 19908 KiB  
Review
A Review of Key Technologies and Trends in the Development of Integrated Heating and Power Systems in Agriculture
by Xueqian Fu, Yazhong Zhou, Feifei Yang, Lingxi Ma, Hai Long, Yujie Zhong and Peng Ni
Entropy 2021, 23(2), 260; https://doi.org/10.3390/e23020260 - 23 Feb 2021
Cited by 19 | Viewed by 3460
Abstract
Petroleum agriculture, characterized by mechanization and chemistry, is developing rapidly in China. However, petroleum agriculture has not only brought food safety problems, but also caused great obstacles to the sustainable development of society. In view of the disadvantages of oil agriculture, we provide [...] Read more.
Petroleum agriculture, characterized by mechanization and chemistry, is developing rapidly in China. However, petroleum agriculture has not only brought food safety problems, but also caused great obstacles to the sustainable development of society. In view of the disadvantages of oil agriculture, we provide an upgrading plan for energy systems in agriculture. This work can help reduce carbon emissions and improve food security. We introduce the most advanced technologies in Chinese agricultural development and the technical scope includes new agricultural energy power generation, agricultural energy use and the safe operation of agricultural energy systems. We describe the detailed data of agricultural bioenvironmental and energy engineering to clarify the level of agricultural energy efficiency in China. The overall conclusion of this paper is that the deep integration of agriculture and energy internet has become the development trend of agricultural energy systems. Full article
(This article belongs to the Special Issue Integrated Cooling, Heating and Power Systems)
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