Thermal performance of opaque wall and cost/benefit analysis | |
| Author | Woranuch Jangsawang |
| Call Number | AIT Thesis no.ET-95-29 |
| Subject(s) | Heat--Transmission Cost effectiveness |
| Note | A thesis submitted in partial fulfillment for the requirement of the degree of Master of Science |
| Publisher | Asian Institute of Technology |
| Abstract | Knowledge and understanding of the thermal interactions in an air-conditioned building have become a necessity in the aspect of providing comfort as well as for rational use of energy. The heat transfer occurring in a building is a dynamic process influenced by many factors. Heat gain through the building envelope is highly variable with time due to the fluctuations of solar radiation intensity, ambient temperature and other environmental conditions. This heat gain is controlled by the thermal properties of the building envelope material. The thermal characteristic of the building envelope and content serves as a modulator of the rate of heat transfer into the space and the heat removal as well. The building interior structures have finite thermal capacitance and therefore have the ability to store heat. The instantaneous heat input into the space for instance may not most of the time be equal to the rate of heat removal by the air conditioning equipment. Some of this heat is absorbed and stored by the building interior elements. After some time this heat is released and becomes a cooling load. In this study, an attempt is made to verify a model of heat transfer through opaque wall by performing experiment on surface heat transfer. From the mathematical model and data obtained from the experiment, multiple linear regression is considered to calculate the coefficients. The model is investigated through finite difference solution by comparing with the result of heat flux form measurement. The specifications of opaque wall that common used in typical building is gathered. The opaque wall OTTV and their cost/benefit is calculated. The final part is the evaluation of the Thai OTTV Formulation. The results show that average heat gain from the OTTV Formulation and the finite difference solution is slightly different. |
| Year | 1995 |
| 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) | Surapong Chirarattananon; |
| Examination Committee(s) | Karmazsin, Etienne;Giap, Van Dang;Malik, Arif Saeed; |
| Scholarship Donor(s) | Bangkok Technical Campus, Rajmankala Institute of Technology; |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 1995 |