Study on air movement and natural ventilation model for energy simulation of residential houses | |
| Author | U Aye Chan |
| Call Number | AIT Thesis no.ET-05-2 |
| Subject(s) | Dwellings--Thailand--Heating and ventilation Dwellings--Thermal properties--Simulation methods--Thailand |
| 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 | In the hot and humid climate of Thailand, overheating is the main problem in residential houses during summer. Although using air-conditioning can solve that problem, it consumes a large amount of electricity and causes the environmental problems. For the design of natural ventilation systems of the residential houses, it is necessary to know that ventilation rate is the function of position and size of the ventilation opening. An important source of uncertainty is related to the attribution of discharge coefficient. The need to maintain indoor air quality by providing minimum air changes inside the room requires knowledge of surface pressure distribution in order to know to calculate the airflow through the house. It is necessary to know the detail knowledge of pressure distribution for the calculation of natural ventilation. The present study was undertaken to improve the knowledge on velocity and discharge coefficient measuring with the scale model test. A study has been carried out both experimentally and analytically on the study of air movement due to wind effect and stack effect. The effects of the parameters affecting pressure distribution were investigated with a variety of opening of windows for all facades. Air velocity measurements were taken with different configurations and find the distribution of pressure coefficients (Cp) on the model with different wind angles. This study gives discussion and conclusion on the Cp distribution with the different angles and provides to calculate the airflow calculation around the houses for natural ventilation as well as mechanical ventilation. The validations of the CFD technique are examined by a comparison between the experimental tests and computer simulations. Finally the study calls for greater applications of natural ventilation and air movement model for residential and small commercial buildings |
| Year | 2005 |
| 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) | Kumar, S.;Nadarajah, Mithulananthan; |
| Scholarship Donor(s) | Asian Institute of Technology Fellowship and Government of France; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2005 |