All About Thermal Mass - GreenBuildingAdvisor
2013年5月3日 · Thermal mass is a solid or liquid material that can store heat. Most of the objects inside your house can be considered thermal mass, including plaster, furniture, books, and canned tomato soup. The specific heat capacity of building materials varies. In general, denser building materials have a higher specific heat capacity per unit of volume ...
Mass Walls Increase Insulation Value - GreenBuildingAdvisor
2009年11月24日 · The IRC classifies a mass wall as an above-grade wall made of concrete block, concrete, insulated concrete forms (ICF), masonry cavity, brick, earth, adobe, compressed-earth block, rammed earth, and solid timber/logs. Insulation installed on a mass wall creates what’s called “thermal lag.”. The insulation increases the time it takes for ...
Does R-Value Trump Thermal Mass? - GreenBuildingAdvisor
2011年10月3日 · Thermal mass vs. higher R-value. With a core of concrete, the ICF wall has more mass than a wood-framed wall, and Mike Collignon thinks this benefit is worth considering. “This often doesn’t show up in R-value discussions,” he writes, “but it [is] quantifiable and does make a difference in reducing air infiltration.”.
Using Water for Thermal Mass Heat Gain - GreenBuildingAdvisor
2010年12月13日 · Water is given as 0.6 W/mK. So taking the average for concrete, concrete and water have similar values (ish) for thermal conductivity rather than the 1:7 ratio given in the quote above. In addition thermal conductivity values do not include the contribution of mass heat transport, convection which in many fluids will dominate or be significant ...
Thermal Mass - GreenBuildingAdvisor
2009年10月26日 · Thermal mass (a substance with high heat capacity, such as rock or water) contained within the house will store available heat and then release it again as temperatures drop. When that stored heat is released, yes, it will have the tendency to even out the day and night temperatures (the diurnal stuff). Either way, it is just stored heat that ...
Thermal Mass in Hot Humid Climates - GreenBuildingAdvisor
2010年10月18日 · This provides a thermal dampening and a thermal lag - it both reduces and delays impacts on interior conditions. If the mass is thick enough, before the daytime heat can penetrate, the nighttime cool begins to reverse any thermal accumulation in the walls. For hot climates, however, exterior wall mass is most effective if all the insulation is ...
Light-weight thermal mass option for passive solar?
2016年1月5日 · Lightweigh thermal mass is NOT self contradictory, because thermal mass is not identical to mass. Materials have very different specific heats- a pound of water ( BTU per lb per degree F) has about 9x the thermal mass of a pound of iron (0.11 BTU per lb per degree F.) Pound or pound glass has about 1/6 the thermal mass of water, granite has about 1/5 the …
R-value vs. thermal mass - GreenBuildingAdvisor
2012年1月26日 · Thermal Mass has the effect of storing heat while insulation has reduces the movement of heat across its path. Thermal mass can store the sun's energy during the day and release it during the night. Enough thermal mass (especially in the envelope as opposed to interior floors) can cause the indoor temperature to be steady at the average of the ...
Thermal mass floor tile conduction - GreenBuildingAdvisor
Thermal mass is one of the components of a passive solar building. "Wide" temperature swings of 68F to 78F might not work for some people. But most people tolerate 78F settings in the summer AC season, and 68F all day during the winter season. So no, they aren't unacceptable to "almost every" American homeowner.
Are lightweight thermal mass systems effective?
2013年4月1日 · Search and download construction details. We have an on-going discussion about Thermal Mass Systems that is getting nowhere. Heavy-weight mass walls and floors are easy for all to understand, like concrete, rock, adobe, rammed earth, water, etc.; however the issues we have is with Light-weight mass like some ICFs and CIPs.