Study on absorption heat pump using hydrophobic membrane

疏水膜吸收式热泵研究

• 批准号: 23560218
• 负责人: NAGASAKI Takao
• 金额: $ 3.41万
• 依托单位: Tokyo Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23560218/
• 关键词: 吸収式ヒートポンプ; 吸収器; 発泡金属; 多孔質膜

Heat and mass transfer in water vapor absorption into LiBr/water solution has been investigated experimentally. Metal foam was attached on the cooling wall, and the absorbent liquid flows in the metal foam. The metal form was covered with a hydrophobic membrane, through which the vapor was absorbed into the absorbent liquid. As a basis of heat transfer in the metal form, heat transfer coefficients were measured for liquid single-phase forced convection, condensation and evaporation. The pressure loss of vapor passing through the membrane was measured and compared with theoretical value. The effect of membrane on the vapor absorption into liquid was clarified.

对溴化锂溶液吸收水蒸气的传热传质过程进行了实验研究。将泡沫金属附着在冷却壁面上，吸收液在泡沫金属中流动。金属模板覆盖有疏水膜，蒸汽通过该疏水膜被吸收到吸收性液体中。作为传热的基础，在金属的形式，液体单相强制对流，冷凝和蒸发的传热系数进行了测量。测量了蒸汽通过膜的压力损失，并与理论值进行了比较。阐明了膜对水蒸气吸收进液的影响。