Emisense Technologies has announced availability of electrostatic particulate matter (ePM) sensors for large diesel generators used in applications such as data centers and hospitals. Emisense positions the sensors as a low-cost way to support particulate matter monitoring as operators provision new generators or upgrade existing emergency backup generators to meet more rigorous Tier-4 emissions standards when operating beyond strict emergency conditions.
“Many operators are looking at provisioning new generators, or in many cases upgrade existing emergency backup generators,” said Patrick Thompson, Emisense CEO. “The challenge is that operation beyond strict “emergency” conditions requires compliance with more rigorous Tier-4 emissions standards.” Emisense says it is offering technology intended to accelerate calibration, integration, and adoption.
Emisense says the sensors are suited for in-situ stack applications and that total monitoring system costs are well below one percent of the generator value. The company claims key advantages include faster response times, superior sensitivity, and a continuous signal, compared with delta-P approaches that monitor exhaust pressure as a surrogate for direct measurement of particulate matter or particle number.
Emisense says electrostatic ePM sensors, also known under the trade name PMTrac, can be combined with nitrogen oxides (NOx) and other sensors to provide cloud-connected continuous monitoring of criteria pollutants. The company says this approach supports easier system integration, sensor self-diagnostics, and lower maintenance costs, with the goal of improving management decision making and lowering compliance costs. Emisense also states that ePM technology works with diesel as well as natural gas, multi-fuel, and most other internal combustion generators, including use cases such as pre-certification testing, evaluating retrofit components such as Diesel Particulate Filters (DPFs), and supporting energy availability planning for demand response programs.
Emisense reports it develops and supports PMTrac ePM technology, including performance and durability testing with the University of California, Riverside, the Southwest Research Institute, and multiple original equipment manufacturers (OEMs).
Source: Emisense Technologies
