Special Issue "Direct Utilization of Geothermal Energy"
Deadline for manuscript submissions: closed (30 September 2017)
Geothermal energy uses natural geothermal fluids for a full spectrum of cascading uses, including district heating and cooling, commercial and residential applications, industrial processes, and agricultural uses, such as greenhouses.
Even if geothermal energy use dates back to a number of centuries ago, in recent times, there has been a growing interest in using geothermal hot water for many applications that require heat for energy saving purposes.
A geothermal resource that consists of hot water at medium to low temperatures (in general below 120–130 °C) underlies many areas in the world. Traditionally, direct-use of geothermal energy has been based on small-scale application. More recent developments involve large-scale projects, such as large district heating systems, greenhouse complexes, and industrial use connected with rather large factories. In recent times, heat exchangers and components are also becoming more efficient and better-adapted to geothermal systems, allowing the use of lower-temperature water and highly saline fluids. Moreover, the diffusion of heat pumps utilizing very low-temperature fluids (20–30 °C) have extended direct geothermal uses to traditionally non-geothermal countries.
In this framework, this Special Issue aims at collecting contributions focusing the recent application of geothermal systems for direct energy uses. The specific element of interest is to collect data coming from real application of geothermal energy for direct utilization.
The main objectives are as follows:
- Describe the actual scenario of geothermal energy direct uses;
- Specify the barriers that limit the concrete possibility to extend the use of geothermal energy systems for direct uses;
- Suggest possible measures, tools and policies to promote further diffusion.
Studies are expected to underline the relationship between the technical and scientific contexts and the local contexts, with the support of case studies and to highlight the potentiality of extending the uses of geothermal energy for direct energy utilization.
Prof. Alessandro Franco
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. Sustainability 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 1400 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.
Lund, J.W.; Freston, D.H.; Boyd, T.L. Direct utilization of geothermal energy 2015 worldwide review. Geothermics 2016, 60, 66–93.
Lund, J.W.; Freston, D.H.; Boyd, T.L. Direct utilization of geothermal energy 2010 worldwide review. Geothermics 2011, 40, 159–180.
- Geothermal energy
- Direct use
- Energy savings
- Space heating
- District heating
- Industrial applications
- Heat Pumps