Introductory Chapter: Power Generation Using Geothermal Low-Enthalpy Resources and ORC Technology

Ismail, Basel I.

doi:10.5772/intechopen.84390

Cited by 3 publications

(3 citation statements)

References 3 publications

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“…More details about the selection criteria of these ORC organic fluids for optimal performance can be found in Refs. [1][2][3][4]. The ORC is a thermodynamic Rankine cycle that uses the organic working fluid instead of steam (water).…”

Section: Fundamental Concept Of a Binary Fluid Orc System Using Ltge Resourcesmentioning

confidence: 99%

“…More information related to a number of past and existing successful ORC binary power plants can be found in Refs. [1][2][3][4]. In this introductory chapter, the fundamental concept of ORC binary fluid power technology using LTGE geothermal resources is introduced with a detailed numerical example, as an illustration of its thermodynamic performance.…”

Section: Introductionmentioning

confidence: 99%

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Introductory Chapter: ORC Power Generation Technology Using Low-Temperature Geothermal Energy Resources: A Conceptual Case Study

Ismail¹

2022

Geothermal Energy

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Section: Fundamental Concept Of a Binary Fluid Orc System Using Ltge Resourcesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Introductory Chapter: ORC Power Generation Technology Using Low-Temperature Geothermal Energy Resources: A Conceptual Case Study

Ismail¹

2022

Geothermal Energy

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“…In the world, geothermal installed capacity has increased from approximately 9992 MW in 2010 to around 13,931 MW in 2019 (Haghighi et al [5]). Hydrothermal plants provide the heat stored in natural aquifers with high values of enthalpy to generate electrical power by dry steam, single flash and double flash cycles [6,7]. Deep and improved geothermal plants are of the more recent technologies that aim at heat stored in reserves deeper than natural aquifers [8].…”

Section: Geothermal Energymentioning

confidence: 99%

A critical review of power generation using geothermal-driven organic Rankine cycle

Loni

Mahian

Najafi

et al. 2021

Thermal Science and Engineering Progress

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Investigation of the Use of Low Temperature Geothermal Organic Rankine Cycle Engine in an Autonomous Polygeneration Microgrid

2020

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Low-enthalpy geothermal resources (<150 °C) can be used for electricity generation and are widespread around the world, occurring at shallow depths. At the same time, in many parts of the world, there are existing low-enthalpy geothermal wells that are used for a multitude of applications such as for buildings’ heating and agriculture-related applications. The dominant technology to convert low-grade heat (<150 °C) to electricity is the Organic Rankine Cycle (ORC). The autonomous polygeneration microgrid (APM) concept aims to holistically meet in a sustainable way the needs of an off-grid community in terms of electrical loads, space heating and cooling, potable water production through desalination, and the use of hydrogen as fuel for transportation, in the most cost-effective manner possible. Photovoltaics (PVs) and wind turbines have been investigated extensively, since PVs can be installed practically anywhere in the world and wind turbines in areas with sufficient wind potential. The aim of this paper is to investigate techno-economically the potential of utilizing low-enthalpy geothermal resources in small-scale APMs through an ORC engine to fully satisfy the needs of small settlements. In order to accomplish this task with confidence, a case study for the Greek island of Milos has been developed and a typical settlement has been considered. It is worth mentioning that experimental results from a realized low-power (<10 kWe) ORC engine manufactured to operate at temperatures up to 140 °C are used to add reliability in the calculations. In order to meet the needs of the people, four different APMs based on PVs, wind turbines, and geothermal ORC of different but appropriate configurations were designed and sized through optimization. The optimization process was based on particle swarm optimization (PSO). The comparative examination of the results shows that the use of a low-power, low-temperature ORC engine in an APM is technically feasible; more cost effective than the configurations based on PVs, wind turbines, or combination of both; and has increased environmental sustainability.

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Introductory Chapter: Power Generation Using Geothermal Low-Enthalpy Resources and ORC Technology

Cited by 3 publications

References 3 publications

Introductory Chapter: ORC Power Generation Technology Using Low-Temperature Geothermal Energy Resources: A Conceptual Case Study

Introductory Chapter: ORC Power Generation Technology Using Low-Temperature Geothermal Energy Resources: A Conceptual Case Study

A critical review of power generation using geothermal-driven organic Rankine cycle

Investigation of the Use of Low Temperature Geothermal Organic Rankine Cycle Engine in an Autonomous Polygeneration Microgrid

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