An EXERGY BASED EVALUATION FOR AIMING ENERGY SAVING AND EFFICIENT SOLAR-ENERGY UTILIZATION

• Sato Haruki

  Keio University, Japan

• Terashima Kohei

  Keio University, Japan

抄録

We propose a couple of assessment-indexes on energy utilization from two viewpoints of reasonable consumption of energy resource and less environmental thermal-load. The exergy quantity in a demand, AD, is defined as a basis of the new indexes. For the assessment of energy resource, we consider the exergy quantity in consumed energy resource, AR, and propose an index of AR /AD as an exergy-balance-ratio, EBR. The absolute value of EBR is always greater than unity and the EBR being unity is the ideal system. In addition, we also consider the exergy quantity in exhaust heat, AE. We can evaluate the environmental-thermal-load from the whole system by using a ratio of (AE + AD) /AD, which we call the index as an exhaust-exergy-ratio, EER. In case of the EER being unity is no environmental thermal load from the supply system. We could judge the best system by selecting both of EBR and EER to be closest to unity, respectively. The combination of the new indexes would be a useful tool to develop or select an environmentally better system. The quantitative assessment for various thermal devices for air heating will be shown as an example.

収録刊行物

• グランド再生可能エネルギー国際会議論文集

  グランド再生可能エネルギー国際会議論文集 1 (0), 324-, 2018

  特定非営利活動法人 再生可能エネルギー協議会

キーワード

• air-conditioning
• energy utilization
• energy conservation
• exergy
• heat pump

詳細情報

• CRID: 1390564238113703936
• NII論文ID: 130007609273
• DOI: 10.24752/gre.1.0_324
• ISSN: 24340871
• 本文言語コード: en
• データソース種別:
  • JaLC
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可