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2024 Vol.44, Issue 2 Preview Page

Research Article

Economic Feasibility Study on an Integrated System of Solar Thermal-Heat Pump for Industrial Process Steam Supply

산업공정용 증기 공급 태양열-히트펌프 융합 시스템의 경제적 타당성 평가

Ga-Ram Lee12
,
Byung-Ju Lim3
,
Sung-Hoon Cho4
,
Muhammad Farooq25
,
Chang-Dae Park36*
이 가람12
,
임 병주3
,
조 성훈4
,
파룩25
,
박 창대36*
1Ph.D. Student, Mechanical Engineering (Environment․Energy Machinery), University of Science & Technology
2Student Researcher, Korea Institute of Machinery & Materials
3Principal Researcher, Korea Institute of Machinery & Materials
4Senior Engineer, Korea Institute of Machinery & Materials
5Integrated Student, Mechanical Engineering (Environment․Energy Machinery), University of Science & Technology
6Professor, Mechanical Engineering (Environment․Energy Machinery), University of Science & Technology
1과학기술연합대학원대학교 융합기계시스템학과, 박사 과정 학생
2한국기계연구원 탄소중립기계연구소, 학생연구원
3한국기계연구원 탄소중립기계연구소, 책임연구원
4한국기계연구원 탄소중립기계연구소, 선임기술원
5과학기술연합대학원대학교 융합기계시스템학과, 통합 과정 학생
6과학기술연합대학원대학교 융합기계시스템학과, 교수
*Corresponding Author
30 April 2024. pp. 91-104
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Abstract

Thermal energy is essential for various industrial processes like liquid heating, drying, and sterilization, demanding temperatures above 100°C. It is mainly generated from fossil fuels, which often leads to carbon dioxide (CO2) emissions and climate crises. Therefore, it is imperative to shift from fossil-fuel based energy to renewable or cleaner energy for the sake of the environment. High-temperature heat pumps are key components for shifts in industrial fields. Industrial high-temperature heat pumps require high-temperature heat sources for evaporation. A solar thermal system can provide a high-temperature heat source and direct heat production. This study aims to evaluate the economic feasibility of an integrated system that combines a solar thermal system and a high-temperature heat pump for supplying steam to industrial processes. Modeling and performance simulations were conducted on the system using Simulink. Economic factors such as the benefit-cost ratio, net present value, and levelized cost of heating (LCOH) were analyzed based on the solar collector area. The results of the study demonstrated that the solar thermal-heat pump can economically substitute a 0.5-ton steam boiler. Notably, CO2 emissions can be reduced by up to 1,600 tons annually by replacing LPG boilers.

Keywords
Solar thermal
Heat pump
Industrial process
Thermal energy supply
Performance
키워드
태양열
히트펌프
산업공정
열공급
성능
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Information
  • Publisher :Korean Solar Energy Society
  • Publisher(Ko) :한국태양에너지학회
  • Journal Title :Journal of the Korean Solar Energy Society
  • Journal Title(Ko) :한국태양에너지학회 논문집
  • Volume : 44
  • No :2
  • Pages :91-104
  • Received Date : 2024-02-08
  • Revised Date : 2024-03-15
  • Accepted Date : 2024-04-11
  • DOI :https://doi.org/10.7836/kses.2024.44.2.091
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