Abstract

It is known that the heat and mass transfer characteristics in the absorber are most sensitive of the temperature boost of all the heat exchangers and the development of a more efficient absorber should be highly important. This paper describes absorption experiments made with different inside tube diameters, tube length and tube shapes. The purpose of this study is to acquire basic knowledge about heat and mass transfer in a falling film type absorber with vertical inner tubes. Heat and mass transfer were measured for water vapor absorption into a Lithium Bromide-water solution flowing down an absorber of vertical inner tubes. As a result, insert spring tube compares bare tube and heat transfer improved by order of insert spring tube P2(pitch 20 mm) and P1(pitch 10 mm).

Keywords

• Falling Film Type Absorber;
• Heat Transfer;
• Mass Transfer;
• Heat Transfer Enhancement;
• Absorption Refrigeration;
• Insert Spring Tube;
• Lithium Bromide

• 유하액막식 흡수기;
• 열전달;
• 물질전달;
• 열전달촉진;
• 흡수식 냉동기;
• 스프링삽입관;
• 리튬브로마이드;