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List of KIMM TechnologiesResearch Institute of Carbon-neutral Energy Machinery

Thermal Storage Heating and Cooling System Technology

Division KIMM Institute of Carbon- neutral Energy Machinery > Department of Thermal-Fluid Machinery
Name Dr. Ookjoong Kim
Department Department of Thermal Systems
Tel +82 - 42 - 868 - 7326
E-mail ojkim@kimm.re.kr
Attachment Download 067_Thermal_Storage_Heating_and_Cooling_System_Technology.pdf (2.4 KB)

Technology that adds thermal storage tank to the heat pump system for cooling, heating, and water supply


Client / Market

  • Cooling, heating and hot water supply market in residential and industrial sectors


Necessity of this Technology

  • Existing small sized ice and cold water storage facility is used for cooling only that annual operation efficiency is very low.
  • To improve the annual operation efficiency, a heat pump with thermal storage tank that used for all 4 seasons is applied


Technical Differentiation

  • Cooling and hot water supply operation using ice storage + hot water storage system during summer season and hot water thermal storage operation system during other seasons
  • Heat pump cycle to generate medium-temperature water of 60℃ to 70℃ during heating


Excellence of Technology

  • Prototype production and performance realization through system design and cycle simulation
  • Over 12% energy saving compared to conventional boilers (※ Boiler : 85% of efficiency for direct combustion type, electrical production/power transmission efficiency of 40%, 90%, respectively; assumption)

Current Intellectual Property Right Status

  • Heat Pump System Equipped with Heating and Control Method (KR0721420)
  • Thermal Storage Type Heat Pump Design Program (06-01-121-002799 program registered)
  • Heat pump design technology generating medium temperature water
  • Compressor selection, optimal capacity control technology
  • Ice-on typed ice storage and hot water thermal storage tank design technology
  • Year-round operation dynamic simulation, performance test