Counter flow induced draft cooling tower option for supercritical carbon dioxide Brayton cycle

Pidaparti, Sandeep; Moisseytsev, A.; Sienicki, James J.; Ranjan, Desh

doi:10.1016/j.nucengdes.2015.09.026

Cited by 7 publications

(4 citation statements)

References 7 publications

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“…The forty-five cooling towers for natural gas and coal plants from NETL (2007NETL ( -2019b are also shown. Pidaparti et al (2015) reports several vendor quotes for an open wet cooling tower from Delta Cooling Towers. Additionally, the four binary cooling tower cost data points shown result from complete GETEM simulations with geofluid (GF) production temperatures between 125°C and 200°C.…”

Section: Closed-circuit Comentioning

confidence: 99%

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Estimating the Geothermal Electricity Generation Potential of Sedimentary Basins Using genGEO (The Generalizable GEOthermal Techno-Economic Simulator)

Adams

Ogland-Hand²,

Bielicki³

et al. 2021

Preprint

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AbstractSedimentary basins are ubiquitous, naturally porous and permeable, and the geothermal heat in these basins can be extracted with geologic water or CO2 and used to generate electricity. Despite this, the broad potential that these formations may have for electricity generation is unknown. Here we investigate this potential, which required the creation of the generalizable GEOthermal techno-economic simulator (genGEO). genGEO is built with only publicly available data and uses five standalone, but integrated, models that directly simulate all components of geothermal power plants to estimate electricity generation and cost. As a result of this structure, genGEO, or a portion of it, can be applied or extended to study any geothermal power technology. In contrast, the current techno-economic tools for geothermal power plants rely on characterizations of unpublished ASPEN results and are thus not generalizable enough to be applied to sedimentary basin geothermal power plants which use subsurface CO2. In this study, we present genGEO as open-source software, validate it with industry data, and compare its estimates to other geothermal techno-economic tools. We then apply genGEO to sedimentary basin geothermal resources and find that using CO2 as a subsurface heat extraction fluid compared to water decreases the cost of geothermal electricity across most geologic conditions that are representative of sedimentary basins. Using genGEO results and p50 geologic data, we produce supply curves for sedimentary basin geothermal power plants in the U.S., which suggests that there is present-day potential to profitably increase the capacity of geothermal power by ~10% using water as the subsurface heat extraction fluid. More capacity is available at lower cost when CO2 is used as the subsurface fluid, but realizing this capacity requires geologically storing between ~2 and ~7 MtCO2/MWe. But developing sedimentary basin resources in the short-term using subsurface water may not eliminate options for CO₂-based power plants in the long-term because the least-cost order of sedimentary basins is not the same for both CO2 and water. With sufficient geologic CO2 storage, developing sedimentary basins using CO2- and water-based power plants may be able to proceed in parallel.

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Section: Closed-circuit Comentioning

confidence: 99%

“…The cost estimate for the diffusion bonded SCO 2 plate heat exchanger manufactured by Heatric is extracted from Moisseytsev & Sienicki (2014) and Pidaparti et al (2015). These are designed for use as recuperators in high-temperature and high-pressure SCO 2 Rankine cycles.…”

Section: S324 Heat Exchanger Cheatexchangermentioning

confidence: 99%

Estimating the Geothermal Electricity Generation Potential of Sedimentary Basins Using genGEO (The Generalizable GEOthermal Techno-Economic Simulator)

Adams

Ogland-Hand²,

Bielicki³

et al. 2021

Preprint

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“…The pump power input and electricity consumption of fan of cooling tower are computed as described in the work of Pidaparti et al [25].…”

Section: Componentsmentioning

confidence: 99%

Waste heat recovery by means of Organic Rankine Cycle (ORC) system coupled with two-phase closed thermosyphons

LE¹,

DECLAYE²,

DUMAS³

et al. 2017

International Journal of Thermodynamics

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This paper aims at assessing the performance of a waste heat-to-power plant by means of an ORC (Organic Rankine Cycle) system coupled with two-phase closed thermosyphons (or gravity-assisted heat pipes or wickless heat pipes). The heat exchanger, made up of two-phase closed thermosyphons, is used for conveying heat from exhaust stream to ORC working fluid. In reality, a hot oil loop or a pressurized hot water loop or a saturated steam loop or even a direct evaporator is often used to transfer heat from the heat source to the ORC system. However, installing a heat exchanger directly in the hot gas paths of ORC system evokes the concerns for the flammability and/or toxicity of organic working fluids especially when the heat source has a relatively high temperature. Also the use of an intermediate heat carrier loop such as thermal oil or saturated steam or pressurized water loop is costly and involves installation of comparatively heavy components. In principle, the use of two-phase closed thermosyphons for capturing and transporting heat from a waste heat source to organic working fluid is less expensive than utilizing an intermediate heat transfer loop and eliminates safety issues as in the case of direct installation of an ORC evaporator in the hot gas paths. Int. J. of Thermodynamics (IJoT) Vol. 20 (No. 2) / 83 function of figure of merit (FOMt), which has the dimension 3/4 5/2 kg Ks , defined as follow [3]: 1/4 23 Q , co  Int. J. of Thermodynamics (IJoT) Vol. 20 (No. 2) / 85

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“…The influence of pressure drop in the heat exchanger and air temperature fluctuation on the cycle performance was also investigated. Pidaparti et al [177] developed a mathematical model for the induced draft wet cooling tower where water absorbed the heat from the hot working fluid in the pre-cooler and then chilled by ambient air in the cooling tower. The water mass flow rate and inlet temperature were optimized for economic operation of the power plant and results showed the amount of water savings against the direct water-cooling method.…”

Section: Research Studies With Sco2 Power Cycles Using Dry Coolingmentioning

confidence: 99%

Investigating the effect of dry cooling system design on the performance of supercritical CO2 cycle in concentrated solar power application

Ehsan¹

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Owing to water deficit and environmental concerns, the compatibility of dry cooling technology with supercritical CO2 (sCO2) power cycle in concentrated solar power (CSP) offers superior thermal performance even at higher climate temperatures. One of the key challenges associated with sCO2 power cycles is the cooling of working fluid near the critical temperature and pressure. The nonlinear and sharp variation of sCO2 properties with bulk temperature poses a unique heat exchanger design problem not encountered with the constant property fluids. A reliable and well-designed cooling system is required for the efficient and smooth operation of a thermal power plant. In arid areas, natural draft dry cooling towers (NDDCT) are preferred over the wet coolers due to the insufficient water supply, environmental concern and the high maintenance and operation cost related to wet cooling.

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Counter flow induced draft cooling tower option for supercritical carbon dioxide Brayton cycle

Cited by 7 publications

References 7 publications

Estimating the Geothermal Electricity Generation Potential of Sedimentary Basins Using genGEO (The Generalizable GEOthermal Techno-Economic Simulator)

Estimating the Geothermal Electricity Generation Potential of Sedimentary Basins Using genGEO (The Generalizable GEOthermal Techno-Economic Simulator)

Waste heat recovery by means of Organic Rankine Cycle (ORC) system coupled with two-phase closed thermosyphons

Investigating the effect of dry cooling system design on the performance of supercritical CO2 cycle in concentrated solar power application

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Counter flow induced draft cooling tower option for supercritical carbon dioxide Brayton cycle

Cited by 7 publications

References 7 publications

Estimating the Geothermal Electricity Generation Potential of Sedimentary Basins Using genGEO (The Generalizable GEOthermal Techno-Economic Simulator)

Estimating the Geothermal Electricity Generation Potential of Sedimentary Basins Using genGEO (The Generalizable GEOthermal Techno-Economic Simulator)

Waste heat recovery by means of Organic Rankine Cycle (ORC) system coupled with two-phase closed thermosyphons

Investigating the effect of dry cooling system design on the performance of supercritical CO2&nbsp;cycle in concentrated solar power application

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Investigating the effect of dry cooling system design on the performance of supercritical CO2 cycle in concentrated solar power application