Affiliation:
1. Institute of Thermal Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
Abstract
The performance enhancement of absorbers is closely related to the investment costs of absorption cooling systems. In this paper, a new film-inverting design for plate falling film absorber is proposed. The absorber consists of consecutive inclined plates. The absorbent solution is distributed at the top of the first plate and forms a liquid film falling down along the plate. Meanwhile, the falling film absorbs the water vapor generated by the evaporator. At the bottom of this plate, the film is guided to the next one and at the same time the film is inverted and its inner side to the vapor is exposed. In this way, the absorption process can be enhanced. A mathematical model is developed for the simulation of heat and mass transfer in this new type of absorbers and is solved numerically. The experiments were carried out under different conditions and the influences of absorption pressure, solution flow rate, solution inlet temperature, and cooling water on the absorption process were investigated experimentally. Comparisons show a good consistency between the experiment and numerical results.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science
Reference9 articles.
1. Study on Transfer of Plate-Fin Type Generator for Absorption Machines;Shitara
2. Absorption Cooling Machine Based on Compact Plate-Fin Heat Exchangers;Bassols
3. Cost Effective Absorption Chiller With Plate Heat Exchangers Using Water and Hydroxides;Flamensbeck;Appl. Therm. Eng.
4. Low Temperature Driven Absorption Chiller;Setterwall
5. Compact Heat Exchangers, Enhancement and Heat Pumps;Reay;Int. J. Refrig.
Cited by
12 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献