Buildings account for a large portion of the total energy use in US; therefore, improving operation typical variable-air-volume (VAV) systems buildings can provide tremendous economic opportunity. ASHRAE Guideline 36 recommends resetting strategy supply air temperature (SAT) VAV based on outside temperature. However, this may not produce optimal performance, particularly when simultaneous cooli...

In order to improve the thermal economic performance of coal-fired units in power industry, supercritical above 600MW generally adopt method installing external steam cooler system utilization reheat. view difficulties and problems calculating three extraction flow high pressure heater by traditional method, this paper, a new calculation medium at inlet is proposed based on fluid dynamics. This...

We propose a baryoand leptogenesis mechanism in which the B−L asymmetry is produced in the conversion of ordinary leptons into particles of some depleted hidden sector. In particular, we consider the lepton number violating reactions lφ→ lφ, l̄φ̄ mediated by the heavy Majorana neutrinos N of the seesaw mechanism, where l and φ are ordinary lepton and Higgs doublets and l, φ the “sterile” leptons ...