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Smart Thermal Grids for Sustainable Energy Systems

A special issue of Sustainability (ISSN 2071-1050).

Deadline for manuscript submissions: closed (31 December 2020) | Viewed by 2672

Special Issue Editor


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Guest Editor
Department of Mechanical Engineering, Technical University of Denmark, 2800 Kgs Lyngby, Denmark
Interests: energy; MATLAB; renewable energy technologies; renewable energy; applied; thermodynamics; engineering thermodynamics; energy conversion; energy engineering; thermal engineering; power generation

Special Issue Information

Dear Colleagues,

A considerable share of today’s research efforts in the energy field is dedicated to developing the concept of smart electric grids as the solution to integrate renewable resources and energy efficiency measures in our societies’ energy mix. This concept often neglects the role of heat as an energy vector, despite the vast amounts of thermal energy that are produced and wasted. Thermal energy generated from renewable resources or industrial processes can be integrated to develop the concept of smart thermal grids for sustainable urban environments. Under this concept, low- and medium-temperature heat can be transferred or upgraded for its use by heating or cooling consumers, converted to electrical or mechanical power, or stored for its future use during higher heat demand periods.
In this frame, this Special Issue aims to present a collection of works that advance the state-of-the art of technologies that use thermal energy as a vector to integrate renewable resources or waste heat in our energy systems. Research studies on the following topics would contribute to the development of smart thermal grids:

- Waste heat recovery technologies
- Thermal storage technologies
- District heating
- Heat-exchanging fluids

Dr. Maria E. Mondejar Montagud
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 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. Sustainability 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 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.

Published Papers (1 paper)

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Research

21 pages, 20257 KiB  
Article
4E Analyses of a Hybrid Waste-Driven CHP–ORC Plant with Flue Gas Condensation
by Hossein Nami, Amjad Anvari-Moghaddam, Ahmad Arabkoohsar and Amir Reza Razmi
Sustainability 2020, 12(22), 9449; https://doi.org/10.3390/su12229449 - 13 Nov 2020
Cited by 33 | Viewed by 2187
Abstract
The combination of a waste-driven hybrid heat and power plant with a small organic Rankine cycle unit was recently proposed and investigated from a thermodynamic perspective. The present study provides a more comprehensive assessment from system operation through considering the energy, exergy, exergoeconomic, [...] Read more.
The combination of a waste-driven hybrid heat and power plant with a small organic Rankine cycle unit was recently proposed and investigated from a thermodynamic perspective. The present study provides a more comprehensive assessment from system operation through considering the energy, exergy, exergoeconomic, and exergoenvironmental (4E) aspects in a revised design of this concept to obtain a bigger picture of the system’s technical, economic, and environmental effects on existing and future energy systems. The revised design includes a flue gas condensation unit and alternative friendly organic working fluids. For this, the hybrid plant is modeled for its thermal, economic, and environmental performances. Then, the exergy losses and environmental effects of the system are scrutinized, the cost of losses and pollutions are predicted, and lastly, sorts of solutions are introduced to improve the exergoeconomic and exergoenvironmental performances of the system. The results indicate that the highest share of exergy destruction relates to the incineration (equipped with a steam generator) with a levelized cost of approximately USD 71/h for a power plant with almost 3.3 megawatt electricity output capacity. The hybridization proposal with the flue gas condensation unit increases the sustainability index of the system from 1.264 to 1.28. Full article
(This article belongs to the Special Issue Smart Thermal Grids for Sustainable Energy Systems)
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