What are the two most predominant passive strategies that are applicable in hot and humid climates?
In hot climates, which are both of hot-dry and hot-humid type, space cooling is a key task for indoor comfort, and may be achieved in many ways. The two fundamental principles to achieve passive cooling are solar protection and maximum air movement.
How are passive solar homes kept cool in the summer?
In simple terms, a passive solar home collects heat as the sun shines through south-facing windows and retains it in materials that store heat, known as thermal mass. Well-designed passive solar homes also provide daylight all year and comfort during the cooling season through the use of nighttime ventilation.
Which is best passive strategy to minimize effect of high temperature and high humidity at indoor space?
In hot humid climates inside the tropics, the best passive strategies to apply are the sun protection and ventilation [1, 2,3]. There are many shading configurations for the devices to protect or allow some amount of solar radiation for the inner space. …
Which of the following passive strategies can be applied in a location with a warm humid climate?
The passive design strategies are improving skin thermal insulation, natural ventilation by vertical operable vents, and solar shading by operable louvers. The main purpose of this research is to show the effect of the three passive design strategies on reducing cooling energy in hot and humid regions.
What is the most effective passive cooling strategy in hot humid climates?
Evaporation. As water evaporates, it draws in heat from surrounding air. Evaporation is therefore an effective passive cooling method. It works best with low relative humidity (70% or less), because air with lower humidity has a greater capacity to take up the evaporated water vapour than air with high humidity.
What is passive solar cooling?
Passive Solar Cooling. Passive solar cooling systems work by reducing unwanted heat gain during the day, producing non-mechanical ventilation, exchanging warm interior air for cooler exterior air when possible, and storing the coolness of the night to moderate warm daytime temperatures.
Do passive houses work in hot climates?
There are several other factors that should be considered in passive design for hot climates. Walls should have adequate thermal mass and be well insulated to prevent heat infiltration. The roof should be lighter in color, well insulated, and equipped with proper ventilation to exhaust acquired heat.
Which earth cooling method is better suited for a humid climate?
To reduce energy consumption, passive air cooling strategy is seen as a suitable option for all subtropical zones with both high humid summer and warm winter and subtropical zones with warm humid summer and mild winter.
What are passive cooling strategies?
Passive cooling uses free, renewable sources of energy such as the sun and wind to provide cooling, ventilation and lighting needs for a household. This additionally removes the need to use mechanical cooling.
How do you passively cool a room?
The key to most sources of passive cooling is air movement. Air movement cools buildings by carrying heat out of the building and replacing it with cooler external air. Moving air can also carry heat to mechanical cooling systems where it can be removed by heat pumps and then recirculated.
How effective is passive cooling?
Passive cooling is especially useful in hot and humid or hot and dry climates. Passive cooling can significantly increase your comfort and reduce your energy bills. In climates with a temperature difference of 6°C or more between day and night, thermal mass can also be used to cool a home.
What are passive cooling techniques for hot humid climates?
Article on passive design cooling techniques for hot humid climates with examples. Many techniques covered. Lakeland, Florida — Side by Side Test, Florida Solar Energy Center Comparison of energy of a home designed with many energy efficiency features to a same size conventional construction home. http://www.fsec.ucf.edu
Are there any houses that use passive cooling?
The house also uses day to night temperature differences and basement cooled air as part of the cooling strategy. This house is definitely worth taking a look at if you live in a low latitude hot climate. Arizona Solar Center — Passive Cooling
How to keep your home cool in a hot climate?
Today I want to talk about passive cooling strategies for keeping your home cool in hot climates. This is a very hot climate and yet our earthbag roundhouse is about 15 degrees Fahrenheit cooler inside than out. So 15 degrees Fahrenheit, 8 degrees Celsius temperature difference with no mechanical cooling systems.
How is ground temperature affected by passive cooling?
Passive Cooling Strategies © Passive House Institute US 2014 14 Ground cooling Source: Zehnder Heat Recovery Bypass Night-time cooling Passive Cooling (Image Source: passive-on.org) Ground Temperature @ 10-13 ft = Annual Mean Air Temperature ±4 ºF Passive Design Cooling Strategies