Abstract
Residential buildings at coastal zone of Egypt face a great shortage in ventilation and thermal comfort, although it has a good orientation to the north. The research focused on Marsa Matrouh city because it is a poor community that has the privilege of sea view. So the research goal is to apply passive natural techniques to apply thermal comfort in this region to decrease the high rise temperature, the IPCC reports stated that there will be high rise temperature for this region as a results of climate change scenarios, for this reason the research aimed to upgrade the existed residential building to cope with this expected high temperature in natural passive way, also it is a good sample for implementing national architecture identity to achieve sustainability by using wooden shatter, wind capture and double glazing. In this research we proved that the optimum affordable natural ventilation technique is the using of double glassing and wooden overhang above each window, this suggested system allowed the air flow to be sucked in order to reduce internal temperature and energy consumption inside any residential buildings. Also the research verified the efficiency of this system by using soft computing technique (Design builder) for measuring the quantities of air flow, solar energy, carbon dioxide emissions, temperature and energy consumption. We aimed to optimize the suggested system to create a new methodology for thermal comfort at coastal zones to solve the high rise temperature issue.
Highlights
Through the recent years climate change became a very important challenge for architecture engineers to overcome its negative effects on buildings which include the rising of air temperature, this will decrease the thermal comfort for building residents and will increase energy consumption as a result of using mechanical ventilation and air conditioner (AC), the operation of this devices will increase greenhouse gases in form of CO2 emissions that is responsible for global warming and climate change, for all that buildings performance must be upgraded to cope with climate change scenarios and solar radiation flocculation (Iskander, 2013) [1]
The results that were yielded from design builder for energy consumption and internal temperature for all cases are mentioned in table II, III, IV and V for 1o days as an example and all the total energy data were shown from figure 12 to figure 15
That represents air velocity and temperature for case 5 we can see that the air flow advection increased due to the wind capture with 10 % penetration ratio on south frontage, it allowed air velocity at south part of the building to reach 3.82 m/sec while at the north part the air velocity was vary from 0.54 m/sec to 1.91 m/sec
Summary
Through the recent years climate change became a very important challenge for architecture engineers to overcome its negative effects on buildings which include the rising of air temperature, this will decrease the thermal comfort for building residents and will increase energy consumption as a result of using mechanical ventilation and air conditioner (AC), the operation of this devices will increase greenhouse gases in form of CO2 emissions that is responsible for global warming and climate change, for all that buildings performance must be upgraded to cope with climate change scenarios and solar radiation flocculation (Iskander, 2013) [1]. Coastal zone management is the operation processes of coastal zone resources to achieve sustainable development goals and to protect the surrounding environment, coastal management is aiming to find solutions for coastal problems in order to maximize the benefits of existing resources, this will include the upgrading of buildings performance in the coastal urban areas by using affordable methods, that will provide both visual and thermal comfort with minimum energy consumption. The paper focused on strengthen the problems as an opportunity for upgrading building performance, coping with climate change must include the climate change scenarios threats and reliable assessment methodology for new urban planning in this region to fulfil environmental and social goals (World Bank, 1996) [2]
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