Studies on activated carbon-methanol pairs with relevance to ice-making | |
| Author | Sridhar, K. |
| Call Number | AIT Thesis no.ET-87-2 |
| Subject(s) | Ice-- Manufacture Carbon, Activated |
| Note | A thesis submitter in partial fulfillment of the requirements for the degree of Master of Engineering, School of Environment, Resources and Development |
| Publisher | Asian Institute of Technology |
| Abstract | In recent times much work is being done in the field of adsorption refrigeration, particularly on Activated carbon-methanol systems. This is because of the superior COPs, thermodynamically promised by this pair in comparison with other pairs like zeolite-water, CaC12-H2 o etc. This study investigated the adsorptive behaviour of some commercially available activated carbons, by obtaining data on their adsorption with methanol. Methanol was chosen as the refrigerant for its excellent properties. Equilibrium data (pressure, temperature and concentration) were obtained and then Dubinin' s equation for the characteristic curve was verified. All carbons exhibited good agreement to the theory of volume filling and carbon 607 gave the highest COP of 0.45 for ice making. The locally available activated carbon too gave a COP of 0.38 for obtaining an evaporator temperature of -10°C . Thus the locally available carbon holds much promise to be able to develop a cheaper solar adsorption refrigerator. A comparative evaluation of the carbons for different applications was done and also other refrigerants that could be used were investigated. In addition to this an adsorption refrigerator, powered by steam was built and some tests were done on it. Carbon 207C-methanol pair was utilized in it. Further work needs to be done on this refrigerator. |
| Year | 1987 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Energy Technology (ET) |
| Chairperson(s) | Exell, Robert H.B. |
| Examination Committee(s) | Bhattacharya, Sribas C. ;Prida Wibulswas |
| Scholarship Donor(s) | The Royal Netherlands Government |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1987 |