scholarly journals Floating power optimization studies for the cooling system of a geothermal power plant

1977 ◽  
Author(s):  
C.J. Shaffer
Keyword(s):  
Power Plant ◽  
Power Optimization ◽  
Cooling System ◽  
Geothermal Power Plant ◽  
Geothermal Power

Incorporating a District Heating/Cooling System Into an Existing Geothermal Power Plant

1998 ◽  
Vol 120 (2) ◽  
pp. 179-184 ◽  
Author(s):  
M. Kanog˘lu ◽  
Y. A. C¸engel ◽  
R. H. Turner
Keyword(s):  
Power Plant ◽  
Cooling System ◽  
Peak Load ◽  
District Heating ◽  
Industrial Park ◽  
Exergy Destruction ◽  
Geothermal Fluid ◽  
Geothermal Power Plant ◽  
Floor Space ◽  
Geothermal Power

Geothermal energy has been used for power generation, space and process heating, and to a lesser extent, space cooling. However, it is rarely used for cogeneration. This paper shows how a district heating/cooling system can be incorporated into an existing geothermal power plant to make the best use of extracted hot brine. In the power plant analysis, exergy destruction throughout the plant is quantified and illustrated using an exergy cascade. The primary source of exergy destruction in the plant is determined to be the reinjection of used brine into the ground, which accounts for 48.1 percent of the total exergy destruction. The overall first and the second law efficiencies of the plant are calculated to be 5.6 and 28.3 percent, respectively, based on the exergy of the geothermal fluid at downwell, and 5.7 and 28.6 percent, respectively, based on the exergy of the geothermal fluid at wellhead. A binary system is considered for the heating/cooling district to avoid corrosion and scaling problems. The heating system, as designed, has the capability to meet the entire needs of the Reno Industrial Park under peak load conditions, and has 30 percent reserve for future expansion. An absorption system will be used for the cooling of the intended 40 percent floor space of the industrial park. An economic analysis shows that the incorporation of the district heating/cooling system with 2,785,000 m2 of floor space connected to the geothermal grid appears to be feasible, and financially very attractive. Further, using the returning freshwater from the district heating/cooling system for partial cooling of the binary fluid of the power plant can save up to 15 percent of the fan work.

scholarly journals Design of a Small Capacity Geothermal Power Plant for Cooling and Heating Systems of Health Resort in Jordan

2021 ◽  
pp. 14-29
Author(s):  
Omar Othman Badran ◽  
Ghazi Salem Al-Marahleh ◽  
Al- Faroq Omar AlKhawaldeh ◽  
Izzeldeen Abed Aldabaibeh
Keyword(s):  
Power Plant ◽  
Oil And Gas ◽  
Cooling System ◽  
Financial Burden ◽  
Thermal Power ◽  
Geothermal Field ◽  
Health Resort ◽  
Geothermal Resources ◽  
Geothermal Power Plant ◽  
Geothermal Power

Jordan is a developing non-producing oil country; a major part of its needed energy is imported from the neighboring countries in the forms of oil and gas, the cost of this imported energy creates a heavy financial burden on the national economy which reflects on the development plans and the standard living of the people. Jordan has good potential of geothermal energy at different places. Therefore, several applications are suggested to be utilized in the agricultural and industrial fields. In this study the binary thermodynamic cycle is suggested to utilize the geothermal source into the form of power plant for generating electricity for heating and cooling system of a health resort in the nearby region of the geothermal field. Also in this study, the air- conditioning and heating loads for a health resort are calculated and the underground thermal power plant is designed to provide the suitable power supply to the health resort. It is concluded that the geothermal resources of energy is proved to be one of the good options of renewable energy sectors in Jordan. Therefore the geothermal power plant can be an option for electrical production of the Jordanian volcanic mountains resorts.

scholarly journals LCA and Exergo-Environmental Evaluation of a Combined Heat and Power Double-Flash Geothermal Power Plant

2021 ◽  
Vol 13 (4) ◽  
pp. 1935
Author(s):  
Vitantonio Colucci ◽  
Giampaolo Manfrida ◽  
Barbara Mendecka ◽  
Lorenzo Talluri ◽  
Claudio Zuffi
Keyword(s):  
Life Cycle ◽  
Power Plant ◽  
Environmental Analysis ◽  
Combined Heat And Power ◽  
Hot Water ◽  
Environmental Cost ◽  
Published Data ◽  
Geothermal Power Plant ◽  
Geothermal Power ◽  
Double Flash

This study deals with the life cycle assessment (LCA) and an exergo-environmental analysis (EEvA) of the geothermal Power Plant of Hellisheiði (Iceland), a combined heat and power double flash plant, with an installed power of 303.3 MW for electricity and 133 MW for hot water. LCA approach is used to evaluate and analyse the environmental performance at the power plant global level. A more in-depth study is developed, at the power plant components level, through EEvA. The analysis employs existing published data with a realignment of the inventory to the latest data resource and compares the life cycle impacts of three methods (ILCD 2011 Midpoint, ReCiPe 2016 Midpoint-Endpoint, and CML-IA Baseline) for two different scenarios. In scenario 1, any emission abatement system is considered. In scenario 2, re-injection of CO2 and H2S is accounted for. The analysis identifies some major hot spots for the environmental power plant impacts, like acidification, particulate matter formation, ecosystem, and human toxicity, mainly caused by some specific sources. Finally, an exergo-environmental analysis allows indicating the wells as significant contributors of the environmental impact rate associated with the construction, Operation & Maintenance, and end of life stages and the HP condenser as the component with the highest environmental cost rate.

scholarly journals Method for imitating magnesium silicate scale formed at the geothermal power plant in Obama Hot Spring, Japan

Geothermics ◽  
2021 ◽  
Vol 96 ◽  
pp. 102203
Author(s):  
Motoaki Morita ◽  
Ayumu Yamaguchi ◽  
Sota Koyama ◽  
Shinichi Motoda
Keyword(s):  
Power Plant ◽  
Hot Spring ◽  
Magnesium Silicate ◽  
Geothermal Power Plant ◽  
Geothermal Power
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