Feasibility study of micro kalina cycle for hot spring power generation

Ryosuke Akimoto; Takehiro Yamaki; Yasuhiko Suzuki; Masaru Nakaiwa; Keigo Matsuda

doi:10.1252/kakoronbunshu.47.143

Feasibility study of micro kalina cycle for hot spring power generation

Ryosuke Akimoto, Takehiro Yamaki, Yasuhiko Suzuki, Masaru Nakaiwa, Keigo Matsuda^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

A model-based approach was employed to examine the applicability of a micro-Kalina cycle of up to 20 kW (about 373 K) with a working fluid of ammonia/water for low-grade geothermal heat energy. It was found possible to generate 15‒24 kW using hot springs (353‒393 K, 10,000 kg/h). It was also found that the micro-Kalina cycle shows a temperature glide like a Lorenz cycle under the simulation conditions, and that it had higher power generation performance than the organic Rankin cycle.

Original language	English
Pages (from-to)	143-147
Number of pages	5
Journal	kagaku kogaku ronbunshu
Volume	47
Issue number	5
DOIs	https://doi.org/10.1252/kakoronbunshu.47.143
Publication status	Published - 2021
Externally published	Yes

Keywords

Hot Spring Power Generation
Lorenz Cycle
Micro Kalina Cycle
Process design
Simulation

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)

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10.1252/kakoronbunshu.47.143

Cite this

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title = "Feasibility study of micro kalina cycle for hot spring power generation",

abstract = "A model-based approach was employed to examine the applicability of a micro-Kalina cycle of up to 20 kW (about 373 K) with a working fluid of ammonia/water for low-grade geothermal heat energy. It was found possible to generate 15‒24 kW using hot springs (353‒393 K, 10,000 kg/h). It was also found that the micro-Kalina cycle shows a temperature glide like a Lorenz cycle under the simulation conditions, and that it had higher power generation performance than the organic Rankin cycle.",

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T1 - Feasibility study of micro kalina cycle for hot spring power generation

AU - Akimoto, Ryosuke

AU - Yamaki, Takehiro

AU - Suzuki, Yasuhiko

AU - Nakaiwa, Masaru

AU - Matsuda, Keigo

PY - 2021

Y1 - 2021

N2 - A model-based approach was employed to examine the applicability of a micro-Kalina cycle of up to 20 kW (about 373 K) with a working fluid of ammonia/water for low-grade geothermal heat energy. It was found possible to generate 15‒24 kW using hot springs (353‒393 K, 10,000 kg/h). It was also found that the micro-Kalina cycle shows a temperature glide like a Lorenz cycle under the simulation conditions, and that it had higher power generation performance than the organic Rankin cycle.

AB - A model-based approach was employed to examine the applicability of a micro-Kalina cycle of up to 20 kW (about 373 K) with a working fluid of ammonia/water for low-grade geothermal heat energy. It was found possible to generate 15‒24 kW using hot springs (353‒393 K, 10,000 kg/h). It was also found that the micro-Kalina cycle shows a temperature glide like a Lorenz cycle under the simulation conditions, and that it had higher power generation performance than the organic Rankin cycle.

KW - Hot Spring Power Generation

KW - Lorenz Cycle

KW - Micro Kalina Cycle

KW - Process design

KW - Simulation

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Feasibility study of micro kalina cycle for hot spring power generation

Abstract

Keywords

ASJC Scopus subject areas

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