Energy Performance and Indoor Environment evaluation of desiccant air handling unit with renewable energy

2022 Fiscal Year Final Research Report

• Project/Area Number: 19K15148
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 23020:Architectural environment and building equipment-related
• Research Institution: Nagoya University
• Principal Investigator: Ukai Makiko 名古屋大学, 環境学研究科, 助教 (90813189)
• Project Period (FY): 2019-04-01 – 2023-03-31
• Keywords: デシカント空調機 / 再生可能エネルギー / 性能評価

Outline of Final Research Achievements

In this study, a desiccant air handling unit specialized for dehumidification treatment as a total energy system including heat source and indoor environment through simulation and actual measurement is evaluated. First, in designing the desiccant air handling unit, the required water supply temperatures (cold water and hot water) for the different load sharing were organized along with the internal conditions of the desiccant air handling unit. In addition, studies were conducted to expand the use of renewable energy sources such as solar thermal energy and ground water, and the possibility of using them was demonstrated. In addition, actual measurements were conducted to examine the performance improvement of the heat source system and the impact on the indoor environment as the temperature of the cold water supplied to the desiccant air conditioner was increased. It was suggested that the system efficiency could be improved without deteriorating the indoor environment.

Free Research Field

建築設備

Academic Significance and Societal Importance of the Research Achievements

本研究は除湿処理に特化したデシカント空調機を対象に、熱源を含めたトータルエネルギーシステムとしての設計手法や運転改善手法を展開した。省エネルギーポテンシャルのある設計手法や再生可能エネルギーの活用拡大に向けた検討は、建物でのエネルギー消費量を削減することに大きく貢献できる。また、実運転によるデシカント空調機を含むトータルエネルギーシステムとしての運転改善効果及び室内環境への精査について、この一連の手法は他建物に適用できるものであり、デシカント空調機を採用する既存建物への応用ができる。