Study on the Composite Material for Total Heat Exchanger

• Main Authors: Jie-Lin Tseng, 曾傑琳
• Other Authors: Huang-Kuei Lee
• Format: Others
• Language: zh-TW
• Published: 2000
• Online Access: http://ndltd.ncl.edu.tw/handle/88098431881475626132

碩士 === 中國文化大學 === 材料科學與製造研究所 === 88 === The use of air conditioning equipment raises our living standard. In an airtight place, air conditioning equipment needs to absorb lots of fresh air and to release sour exhausting air at the same time, but this imposes a heavy load on energy consumption. In this study, the Nadelholg Bleached Kraft Pulp (NBKP), glass fibers for E type and inorganic filler, such as chitin, silica gel, were used to make the plate base sheets, which are the major component unit of paper-made total heat exchangers. Using the total heat exchangers to recycle the exhausting indoor air would reduce the energy loading of air conditioning. These factors have lead to provide strong incentive to develop more efficient paper-made total heat exchangers. Three different kinds of pulp freeness (400ml, 550ml, 600ml) and the optimum composition of the base sheets for the total heat exchangers were experimentally investigated. A series of studies of the physical properties of base sheets, such as tensile strength, tearing strength, ring crush strength, porosity and wet-permeation, were experimentally tested and the effect factors and performance of the assembled total heat exchangers were discussed. As the result, when the freeness is 550ml, the ratio of NBKP and E-glass is 9 to 1; adding 30﹪absolute dried filler of chitin, the ratio of NBKP and E-glass is 4 to 1 but by adding 10﹪absolute silica gel this results in which have the best wet－permeation.