For example, methane is a much more powerful greenhouse gas than carbon dioxide. Over a 100 year period, a molecule of methane (CH4) has 21 times the warming effect as a molecule of carbon dioxide (CO2), even though it stays in the atmosphere for only about 12 years of the 100 year period.he warming impact of different types of greenhouse gases varies according to the warming power of the gas and the length of time it stays in the atmosphere. As shown in Table 1, carbon dioxide has an atmospheric life of 50 to 200 years.
hydraulic manifold definition, hydraulic manifold meaning | English dictionary. hydraulic. n a press that utilizes liquid pressure to enable a small force applied to a small piston to produce a large force on a larger piston.
GAUGE MANIFOLD SET. One of the most important tools to the HVAC&R technician is the gauge manifold set. The compound gauge (blue) and the high pressure gauge (red) are connected to the manifold, and the manifold is then connected by hoses to access ports to measure system pressures. The compound gauge measures low pressure (psig) and vacuum (inches Hg.). The high pressure gauge measures high side (discharge) pressure.