Analytical Design of Helical Coil Steam Generator for Hot Temperature Gas Reactor

Riyandwita, Byan Wahyu; Awwaludin, M.; Krismawan,; Zacharias, Petrus; Siswanto, Edy; Setiawan, Putut Hery; Nugroho, Arif Setyo

doi:10.1088/1742-6596/1198/4/042014

Cited by 4 publications

(5 citation statements)

References 2 publications

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“…It has 30 individual heat exchanger columns with an outer diameter of 18 mm helical coil tube. From that results, difference between the calculated area (66.6 m 2 ) and reported area (56 m 2 ) is in the value of 18.9% [12].…”

Section: Overall Outer Heat Transfer Coefficient 𝑈 𝑜mentioning

confidence: 76%

“…The proposed helical steam generator design is taken from the RDE design [12], 49 once-through coils as shown in Fig. 2 will be inserted in one vessel.…”

Section: Methodsmentioning

confidence: 99%

“…The helical tube is assumed to be made using Incolloy 625. The calculation procedure can be conducted directly due to the The geometry of the helical coil steam generator [12] constant pressure assumption. The calculation procedure at each of the regions is as follows and described in detail in the previous study for RDE [12].…”

Section: Methodsmentioning

confidence: 99%

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Design Scenario and Analysis for Preliminary Specification of Steam Generator in the Peluit-40

Riyandwita¹,

Subhan²,

Setiadipura³

et al. 2023

Tri Dasa Mega

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The helical steam generator is connected to an HTGR-type nuclear reactor called PeLUIt-40 for steam production. Steam is used to generate electricity and hydrogen. A once-through helical tube bundle was employed because of its ability to endure mechanical stress due to thermal expansion, high resistance to flow-induced vibrations, and better thermal performance compared to a straight tube one. To produce the targeted steam, a design analysis of the once-through helical steam generator needs to be conducted. A quick evaluation method was used to predict the preliminary specifications required for steam production. Simple thermodynamic calculations combined with empirical heat transfer coefficients covering convective and boiling processes at constant pressure were used to carry out the analysis. Two scenarios were conducted to evaluate the design choice based on the previous design of RDE-10.

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Section: Overall Outer Heat Transfer Coefficient 𝑈 𝑜mentioning

confidence: 76%

“…The proposed helical steam generator design is taken from the RDE design [12], 49 once-through coils as shown in Fig. 2 will be inserted in one vessel.…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Design Scenario and Analysis for Preliminary Specification of Steam Generator in the Peluit-40

Riyandwita¹,

Subhan²,

Setiadipura³

et al. 2023

Tri Dasa Mega

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“…By using a helical coil in the steam generator, the capacity of EPR development can be increased. When evaluated from the performance of each component, without ignoring the complexity of the development process, helical coil increases the coefficient of heat transfer with the aid of component structure [22]. The electrical needs of end consumers become the determinants of output from capacity and the cost of the nuclear power plant being constructed [23].…”

Section: Risks At the Early Stage Of Nuclear Power Plant Constructionmentioning

confidence: 99%

Risk Assessment of Experimental Power Reactor at the Early Stage in Developing Countries: Between Straight Tube and Helical Coil

Herdiani¹,

Awwaluddin²,

Prahara³

et al. 2021

Proceedings of the Conference on International Issues in Business and Economics Research (CIIBER 2019)

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Research on renewable energy is an appropriate action to accommodate high needs of energy and to maintain economic stability. Experimental Power Reactor is a Hot Temperature Gas Reactor developed in Indonesia that utilizes steam to fulfill needs of electricity in isolated areas. Helical coil is the steam generator component that is needed to produce heat more efficiently compared to straight tube. The problem is that the utilization of the component can be said to be zero in Indonesia due to its general unavailability in markets. The complexity and low demand for helical coil causes the component to become rare. This study is aimed to analyze the risk of investment in renewable energy at the development stage. Reviewing relevant literatures and interviewing the experts have been done to figure out how far the development of renewable energy in Indonesia as well as the following risks. With consideration of efficiency and the projection of renewable energy in the future and without disregarding the development complexity, helical coil needs to be developed and utilized as a component in steam generators.

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“…Riyandwita et al [6] presented a study on the analytical design of a helical coal steam generator for a hot-temperature gas reactor. A compact design of a once-through counter-flow helical coil steam generator is proposed.…”

Section: Introductionmentioning

confidence: 99%

Enhancing Thermal Efficiency in Steam Generators: An Analysis of Multi-Stage Helical Coils and Vertical Separators with Partition Walls

Salim,

Jassim

2024

IJHT

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This study examines the influence of hot air flow trajectories within steam generators on their thermal efficiency. Specifically, the investigation focuses on the augmentation of the convection heat transfer coefficient, achieved through enhanced contact efficiency between hot air and water pipes, thereby increasing convective heat. Computational Fluid Dynamics (CFD) served as a preliminary tool for evaluating the thermal dynamics of the steam generator, encompassing the movement of flame and hot air as well as steam generation within the pipes. The introduction of partitions was found to refine the convective heat transfer coefficient in the steam generator, particularly in the inner and outer coils. However, a decrease in the heat transfer coefficient was noted around the vertical cylinder, compared to the configuration without partitions. The inclusion of a single separator in the evaporator generator led to a 29% increase in the total convective heat transfer coefficient, while the utilization of two separators resulted in a 23% increase. These findings highlight the significance of structural modifications in steam generators, specifically through the strategic placement of separators and partitions, in elevating thermal efficiency.

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Analytical Design of Helical Coil Steam Generator for Hot Temperature Gas Reactor

Cited by 4 publications

References 2 publications

Design Scenario and Analysis for Preliminary Specification of Steam Generator in the Peluit-40

Design Scenario and Analysis for Preliminary Specification of Steam Generator in the Peluit-40

Risk Assessment of Experimental Power Reactor at the Early Stage in Developing Countries: Between Straight Tube and Helical Coil

Enhancing Thermal Efficiency in Steam Generators: An Analysis of Multi-Stage Helical Coils and Vertical Separators with Partition Walls

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