Exhaust Air Transfer Ratio (EATR ): Ratio of the tracer gas concentration Ventilation for Acceptable Indoor Air Quality §5.16.1 Classification.
In 2010, ASHRAE Standard 90.1 codified a measurement for data center cooling equipment, that metric was the Sensible Coefficient of Performance (SCOP)ĪNSI/ASHRAE Standard 62.1-2013. The first and second sensible coils are connected and transfer heat from air before the coolin Unlike comfort cooling units the precision air conditioners required high coil face velocities and thinner coils to provide the desired high sensible heat ratio (SHR) that the IT equipment required. Then the air passes over a second sensible coil (4-5) to heat it to the desired supply air temperature. Sensible coil, which reduces the air temperature (2-3) the air passes through the cooling coil (3-4) for dehumidification and cooling. Importance of Temperature and Humidity Control Description Sensible (btu/hr) Latent (btu/hr) Lighting and Appliance 443,690 0 Doors 0 0 Ceiling 0 0 Walls 0 0 Infiltration 0 0 Microsoft PowerPoint - Seattle ASHRAE Grow Room Presentation Author Sensible Heat Ratio - SHR - Engineering ToolBo Thus, the sensible heat gain q sensible for generic types of electric, steam, and gas appliances installed under a hood can be estimated using one of the following equations: q sensible = q input F UF R (10) or q sensible = q input F L (11) where F L is defined as the ratio of sensible heat gain to the manu-facturer 's rated energy input Sensible Heat Ratio (SHR) - MEPKIT - Engineering's First Ai ASHRAE Standards are prepared by a Project Committee appointed specifically for the purpose of writing the Standard. Reducing the SHR increases the portion o ASHRAE obtains consensus through participation of its national and international members, associated societies, and public review. Based on ASHRAE/ANSI Standard 140-2001, it is the ratio of sensible heat transfer to total heat transfer ( sensible * + latent *) for a process Sensible Heat Ratio - SHR - is defined as the sensible heat or cooling load divided by the total heat or cooling load The Sensible Heat Ratio - SHR - is used to describe the ratio of sensible heat load to total heat load and can be expressed as: SHR = qs / qt = qs / (qs + ql) (1 Figure 2-3: ASHRAE 90.1 Maximum Solar Heat Gain Coefficient Over Time.2-5 Figure 2-4: ASHRAE 90.1 Maximum Lighting Power Density (for Office Space) and by the sensible heat ratio (SHR), which is the ratio of the sensible cooling capacity to the total (sensible + latent) cooling capacity.
Sensible Heat Ratio (SHR) Sensible heat ratio (SHR) is also known as sensible heat factor (SHF).
0 kommentar(er)
