| Author | Nay Myo Oo |
| Call Number | AIT Thesis no. ET-98-11 |
| Subject(s) | Heat pumps
|
| Note | A thesis ·submitted 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 | Chemical Heat Pumps (CHPs) use thermal effect of one or more reversible chemical
transformation and can be used for energy upgrading and/or energy storage purposes. An
appropriate working pair (solid/gas or liquid/gas) circulates between endothermic and
exothermic reactors. This research was aimed at studying the selection criteria of the working
pairs for CHPs and to conduct modeling studies relevant to the industrial application of CHPs.
For the selection of working pairs for liquid/gas CHP system, the analysis shows that the
Gibbs free energy of change of reaction L'.GT0 and turning temperature T* could be used as the
most appropriate tools. Working temperature range (TL and TH) of a CHP system must be
lower than its turning temperature T*. At any working temperature, the heat energy associated
with CHP system can be estimated using Gibbs-Helmholtz equation. This has been shown for
the various working pairs available and how it can be used for new working pairs.
Modeling of endothermic and exothermic reactor of iso-propanol/acetone/ hydrogen has
been done. A batch type reactor is used in the endothermic reactor, which is suitable to study
basic reaction kinetics, while a Plug Flow Reactor (PPR) type is used in exothermic reactor
modeling. Model equation to estimate reaction conversion and theoretical heat energy
associated with reaction is developed. Reaction kinetics information about the catalyst used in
CHP is necessary to simulate model. The results of the simulation have been compared with
that presented in the literature.
Before experimentation on endothermic and exothermic reaction, pre experimentation
studies were carried out. |
| Year | 1998 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Department of Energy and Climate Change (Former title: Department of Energy, Environment, and Climate Change (DEECC)) |
| Academic Program/FoS | Energy Technology (ET) |
| Chairperson(s) | Kumar, S. ;Attalage, R. A.; |
| Examination Committee(s) | Surapong C.; |
| Scholarship Donor(s) | Government of France; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1998 |