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Simulation of Temperature Distribution and Heat Transfer in a Building with Ventilation System using Computational Fluid Dynamics

Name: ÈØÀªÑ ÇÒʹҹ¹·ì

Organization : ÁËÒÇÔ·ÂÒÅÑÂà·¤â¹âÅÂÕ¾ÃШÍÁà¡ÅéÒ¸¹ºØÃÕ. ¤³Ð¾Åѧ§Ò¹áÅÐÇÑÊ´Ø. ÊÒ¢ÒÇÔªÒà·¤â¹âÅÂÕÍسËÀÒ¾

Name: Supachai Wasananon

Organization : King Mongkut's University of Technology Thonburi. School of Energy and Materials. Thermal Technology

keyword: ¼¹Ñ§¡Ñé¹Ëéͧ

; ¡ÒÃÃкÒÂÍÒ¡ÒÈ

; ¡Òäӹdz¾ÅÈÒʵÃì¢Í§äËÅ

; ¤ÇÒÁʺÒÂàªÔ§¤ÇÒÁÃé͹

; Partition

; Ventilation

; CFD

; Thermal Comfort

Abstract: ÍسËÀÙÁÔÀÒÂã¹ÍÒ¤Òà Ê觼Åâ´ÂµÃ§µèÍÊÀÒÇФÇÒÁʺÒ¢ͧ¼Ùé·Ó§Ò¹ â´Â»Ñ¨¨Ñ·ÕèÊ觼ŵèÍ¡Òà à»ÅÕè¹á»Å§ÍسËÀÙÁÔã¹ÍÒ¤ÒùÕéÍÒ¨à¡Ô´¨Ò¡»Ñ¨¨ÑÂÀÒ¹͡ÍÒ¤Òà àªè¹ ÀÒÃФÇÒÁÃé͹¨Ò¡ÀÒ¹͡ ÍÒ¤Òà ¤ÇÒÁàÃçÇÅÁ·Õè¾Ñ´à¢éÒÊÙèÍÒ¤Òà ËÃ×ͻѨ¨ÑÂÀÒÂã¹ÍÒ¤Òà àªè¹ ¡ÒÃÇÒ§¼¹Ñ§¡Ñé¹Ëéͧã¹ÍÒ¤Òà à»ç¹ µé¹ à¾×èÍ·Õè¨ÐÈÖ¡ÉһѨ¨Ñ´ѧ¡ÅèÒÇ CFD ¨Ö§ä´?¶Ù¡¹ÓÁÒãªéà¾×èͤӹdz¡ÒáÃШÒÂÍسËÀÙÁÔã¹ÍÒ¤Ò÷ÕèÁÕ ¤ÇÒÁ¡ÇéÒ§ 8.00 m ÅÖ¡ 12.25 m áÅÐÊÙ§ 2.90 m â´Â·Õè¤ÇÒÁàÃçÇÅÁ·Õèà¢éÒ´éҹ˹éÒÍÒ¤ÒÃÁÕ¤èÒ 0.4, 1.4 áÅÐ 3.2 m/s áÅÐÍѵÃÒ¡ÒöèÒÂà·¤ÇÒÁÃé͹à¢éÒÊÙèÍÒ¤Òèҡ¼¹Ñ§´éҹ˹éÒ ´éÒ¹¢éÒ§¢Í§ÍÒ¤ÒÃà»ç¹ 0- 110 W/m2 ¼Å¡ÒèÓÅͧáÊ´§ãËéàËç¹ÇèÒ ÍسËÀÙÁÔÀÒÂã¹ÍÒ¤ÒÃà¾ÔèÁ¢Öé¹µÒÁ¡ÒÃà¾ÔèÁ¢Ö鹢ͧÍѵÃÒ¡Òà ¶èÒÂà·¤ÇÒÁÃé͹·Õ輹ѧ´éҹ˹éҢͧÍÒ¤Òà áµèÍسËÀÙÁÔÀÒÂã¹ÍÒ¤ÒèÐŴŧµÒÁ¡ÒÃà¾ÔèÁ¢Ö鹢ͧ ¤ÇÒÁàÃçÇÅÁ·Õèà¢éÒÁÒ·Ò§´éҹ˹éҢͧÍÒ¤Òà 㹡óդÇÒÁàÃçÇÅÁ·Õèà¢éÒÁÒ·Ò§´éҹ˹éҢͧÍÒ¤ÒÃà»ç¹ 0.4 m/s áÅÐÍѵÃÒ¡ÒöèÒÂà·¤ÇÒÁÃé͹ 55 W/m2 ·Õ輹ѧ´éҹ˹éҢͧÍÒ¤Òà ¡ÒÃÇÒ§¼¹Ñ§¡Ñé¹Ëéͧ·ÕèÁÕ ¤ÇÒÁ¡ÇéÒ§ 4.00 m ÊÙ§ 2.00 m ºÃÔàdz¡ÅÒ§ÍÒ¤ÒÃËèÒ§¨Ò¡¼¹Ñ§·Ò§´éҹ˹éÒ 4.00 m ¨ÐãËé¡ÒáÃШÒ ÅÁ·Õè´ÕÀÒÂã¹ÍÒ¤ÒÃáÅÐÍسËÀÙÁÔ·Ò§´éÒ¹ËÅѧ¢Í§¼¹Ñ§¡Ñé¹ËéͧÁÕ¤èÒµèÓŧ áÅÐàÁ×èÍÇÒ§¼¹Ñ§¡Ñé¹Ëéͧ·ÕèÁÕ ¤ÇÒÁ¡ÇéÒ§ 2.00 m ÊÙ§ 1.70 m ªÔ´¼¹Ñ§´éÒ¹«éÒÂËèÒ§¨Ò¡¼¹Ñ§·Ò§´éҹ˹éÒ 2.00 m ¨ÐãËé¡ÒáÃШÒÂÅÁ ·Õè´Õàªè¹¡Ñ¹ ÊÓËÃѺ¡ÒáÃШÒÂÍسËÀÙÁÔÀÒÂã¹ÍÒ¤ÒþºÇèÒ ÍسËÀÙÁÔ¨ÐᵡµèÒ§¡Ñ¹à¾Õ§àÅ硹éÍÂàÁ×èÍ ¡Ó˹´ãËéÁÕÍѵÃÒ¡ÒöèÒÂà·¤ÇÒÁÃé͹ 55 W/m2 ·Õ輹ѧ´éҹ˹éÒ áÅÐÍسËÀÙÁԢͧÍÒ¡ÒÈ·ÕèºÃÔàdzËèÒ§ ¨Ò¡¼¹Ñ§´éҹ˹éÒ 1.00 m ¨ÐÊÙ§¡ÇèÒÍسËÀÙÁԢͧÍÒ¡ÒÈ㹺ÃÔàdzÍ×è¹à¹×èͧ¨Ò¡¼Å¢Í§¡ÒöèÒÂà·¤ÇÒÁ Ãé͹¨Ò¡¼¹Ñ§´éҹ˹éÒ áÅШҡ¡ÒÃà»ÃÕºà·Õº¡Òäӹdz¡ÒáÃШÒÂÍسËÀÙÁÔã¹áºº 2 ÁÔµÔáÅÐ 3 ÁÔµÔ ¾ºÇèҼšÒäӹdzÁÕ¤ÇÒÁᵡµèÒ§¡Ñ¹ 0.17 %

Abstract: Temperature indicates a thermal comfort in a building. Temperature change in a building may be caused by parameters outside a building, such as a rate of heat transfer and an approaching air velocity, and parameters inside a building, such as arrangements of office partitions. To study these effects, CFD was used to calculated temperature distribution in a 8.00 x 12.25 x 2.90 m3 building having approaching air velocity of 0.4, 1.4 and 3.2 m/s and heat flux to the front and the side of a building varied from 0-110 W/m2. Simulation results showed that temperature inside a building increased with increasing of the heat flux at the front wall of a building. But temperature decreased with increasing of approaching air velocity. In the case of an approaching air velocity of 0.4 m/s and a constant heat flux of 55 W/m2 at the front wall. Installation of partition with width of 4.00 m and height of 2.00 m in the middle of building which far from the front wall 4.00 m gave uniform air velocity distribution and temperature behind the partition decreased. The partition which far from the front wall 2.00 m with width of 2.00 m and height of 1.70 m lay on the left side of the building, it was found that this position also gave uniform air velocity distribution. For temperature distribution in the building, it was found that the temperature in the building was slightly different when the front wall has uniform heat flux of 55 W/m2. The temperature at the regions which far from the front wall 1.00 m was higher than the other regions due to the effect of heat flux at the front wall. To compare the calculated results of 2D and 3D, the results revealed that the results of calculation were different about 0.17 %.

ÁËÒÇÔ·ÂÒÅÑÂà·¤â¹âÅÂÕ¾ÃШÍÁà¡ÅéÒ¸¹ºØÃÕ

Address: ¡Ãا෾ÁËÒ¹¤Ã (Bangkok)

Email: info.lib@mail.kmutt.ac.th

Name: ¸¹Ôµ ÊÇÑÊ´ÔìàÊÇÕ

Role: ÍÒ¨ÒÃÂì·Õè»ÃÖ¡ÉÒ

Name: Í´ÔÈÑ¡´Ôì ¹Ò¶¡Ã³¡ØÅ

Role: ÍÒ¨ÒÃÂì·Õè»ÃÖ¡ÉÒ

Name: Thanit Swasdisevi

Role: Advisor

Name: Adisak Nathakaranakule

Role: Advisor

Created: 2548

Modified: 2552-02-03

Issued: 2551-11-06

ÇÔ·ÂÒ¹Ô¾¹¸ì/Thesis

application/pdf

ISBN: 9741847947

CallNumber: TT175

tha

DegreeName: ÇÔÈÇ¡ÃÃÁÈÒʵÃÁËҺѳ±Ôµ

Level: »ÃÔ­­Òâ·

Descipline: à·¤â¹âÅÂÕÍسËÀÒ¾

Grantor: ÁËÒÇÔ·ÂÒÅÑÂà·¤â¹âÅÂÕ¾ÃШÍÁà¡ÅéÒ¸¹ºØÃÕ

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