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Manu, S.
- A New Method to Determine the Concentration for LiBr Solution in Vapor Absorption Refrigeration System
Authors
1 Department of Mechanical Engineering, SSIT, Tumkur, Karnataka, IN
2 Department of Mechanical Engineering, MITE, Tumkur, Karnataka, IN
3 Department of Mechanical Engineering, AMCE, Bangalore, Karnataka, IN
Source
International Journal of Innovative Research and Development, Vol 5, No 11Sp (2016), Pagination: 62-64Abstract
The growth in industrialization and improvement in the science technology has developed a new system for the sophistication for the mankind. According to ASHRAE reported more than 50% of the generated power is consumed by the refrigeration and Air-conditioning systems. This resulted in the energy crisis and attributed to development novel systems like vapour absorption refrigeration system. LiBr-H2O (Lithium Bromide-water) vapour absorption refrigeration system showed the promising solution because it uses heat energy to run the system and also it uses natural refrigerant as water due to this there is no detrimental effect on the environment. The key components of this system are generator and absorber and there it is necessary to maintain required concentrations if not resulting in scaling in the line. The literature review showed that, conventional methods are used to determine the concentration. In this regard, the paper attempts to develop the new method to measure the concentration quickly, accurately and at low cost by using conductivity under ambient conditions. The results showed the accuracy in the measurement on compared with conventional method.
Keywords
Lithium Bromide, Concentration, Heat Pump, Conductivity.Full Text
- Influence of Design Parameters on Heat Transfer Coefficient during Flow Condensation in Pipe Using Taguchi Approach
Authors
1 Department of Mechanical Engineering, Sri Siddhartha Institute of Technology, Tumkur, Karnataka, IN
2 Department of Industrial Engineering & Management, Sri Siddhartha Institute of Technology, Tumkur, Karnataka, IN
Source
International Journal of Innovative Research and Development, Vol 5, No 11Sp (2016), Pagination: 186-188Abstract
The optimization of design parameters is the important step in the Taguchi Method which uses the orthogonal array to maximize the effect of controllable parameters and to minimize the effect of uncontrollable process parameters. This study presents the optimum design parameters on heat transfer coefficient of flow condensation in the pipe using Taguchi method. The investigation was carried out to optimize the heat transfer coefficient (h) for flow condensation. The three factors were considered: Diameter (d), Pressure (P), Mass flux (G) at three different levels. The L9 orthogonal array was selected and the best optimum conditions were identified based on Signal to Noise (S/N) ratio under the characteristic of larger is the best. The results showed Mass flux contribution is more on heat transfer coefficient.
Keywords
Diameter, Pressure, Mass Flux, Flow Condensation, Heat Transfer Coefficient, Taguchi Approach.Full Text