非結露型次世代空調システムに関する研究: 第1報―CO2ヒートポンプを組み込んだデシカント空調システムの提案及び性能検討

Translated title of the contribution: Study on Non-Condensing Air-Conditioning System for Next Generation : Part1-Proposal of Desiccant Air-Conditioning System Combined with CO_2 Heat Pump and Study on System Performance

Research output: Contribution to journalArticlepeer-review

Abstract

Desiccant cooling system has been suggested to be a suitable system to improve IAQ (Indoor Air Quality) by its superior performance of humidity control, and decrease the health risk generated by mold growth. However, this system has a defect of its lower energy efficiency, so combining with power generation system, such as co-generation system, is commonly used to improve its energy efficiency. The purpose of this research is to realize a non-condensing environment by developing a non-condensing air-conditioning system (a HVAC system without condensation both in the indoor environment and inside the air-cooling system with high energy efficiency). In this paper, the authors studied the possibility and methods of combining desiccant cooling system with CO_2 heat pump that can improve its energy efficiency and provide steady heat source. The authors also studied the adaptability of the system under mid-summer climate, and evaluate the performance of thermal comfort, IAQ (Indoor Air Quality) and energy efficiency by experimental data and performance data of CO_2 heat-pump. In this paper, the actual situation and countermeasure of indoor microorganism pollution was reviewed, and a new type of desiccant air-conditioning system combined CO_2 heat pump is proposed. In this system, heat generated from condenser and gas-cooler of CO_2 heat pump are used to be the heat source of desiccant air-conditioning system. The authors also studied the performance of system by assume the CO2 heat pump has combined with desiccant air-conditioning system. The result of calculation shows the system COP to near 2, and is a significant improvement of energy efficiency by comparing with a normal desiccant air-conditioning system.
Translated title of the contributionStudy on Non-Condensing Air-Conditioning System for Next Generation : Part1-Proposal of Desiccant Air-Conditioning System Combined with CO_2 Heat Pump and Study on System Performance
Original languageOther
Pages (from-to)1-8
Journal空気調和・衛生工学会学論文集
Volume110
DOIs
Publication statusPublished - 2006

All Science Journal Classification (ASJC) codes

  • Architecture

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