HVAC + REFRIGERATION
C2Sense offers the HVAC and refrigeration industry gas sensors that detect low concentrations of environmentally-friendly refrigerants in tiny, robust, and selective form factors, addressing the rapidly changing regulations in this industry.
The HVAC and refrigeration industry is in a state of rapid change as it implements new regulations, phases out refrigerants that are not environmentally friendly, and adheres to changing requirements for indoor air quality. Recent government regulations prohibit or severely limit the use of traditional/standard refrigerants in favor of less dangerous alternatives. Adding to the complexity of the transition period, the new refrigerants, although environmentally friendly, are flammable (such as A2L blends), toxic (NH3), or smothering (CO2), presenting new safety challenges and compelling certification agencies to develop requirements for sensors to be installed alongside these new refrigerants. One thing that has remained constant is the need for innovative, affordable, and reliable sensing solutions in a small footprint.
Despite the inherent risk, HVAC-R systems are inadequately monitored primarily because technology has not kept up with the needs of the industry. In most cases, existing sensors are not suitable for HVAC-R uses, particularly for one of the most compelling refrigerants (R-32), they are prohibitively expensive or require frequent maintenance. Traditionally, those seeking to accurately measure gas concentrations have been faced with an inconvenient dichotomy: expensive benchtop equipment that collects limited amounts of high-quality data, or smaller, cheaper sensors with poor selectivity and sensitivity that collect large quantities of mediocre data. Suppliers are struggling to provide solutions that meet the regulations and the needs of their customers. In order for a sensing solution to meet the requirements of this ever-changing landscape, the gas sensors must deliver high specificity, low minimum detection limits (MDL), and wide operating temperature range, all at a low and scalable cost.
THE C2 SOLUTION
C2Sense offers the HVAC and refrigeration industry gas sensors that detect low concentrations of environmentally-friendly refrigerants in tiny, robust, and selective form factors, addressing the rapidly changing regulations in this industry. Our technology uses the fundamental sensing approach of chemiresistance, but leverages a unique combination of basic chemistry, stabilizing matrix components, and embedded carbon nanotubes (CNTs) to impart selectivity. Simply put, when a mixed gas stream that contains a target compound meets a CNT chemiresistive sensor, a chemical reaction occurs between the selected gas molecules and the molecular selectors within the sensor. This reaction causes a distinct change in the sensor’s electric current, which can be measured and translated into information about the presence and concentration of the target compound. Our molecular-level approach means that our sensors are able to be miniaturized into ultra-small footprints that require very few supporting electronics, and these superior sensors largely eliminate cross-sensitivities, false positives, the degrading effects of humidity and temperature, and other challenges which have historically plagued small form-factor sensors. This sensing approach makes it possible for our sensors to provide large volumes of useful information despite their small size and relatively simple construction.
Mobile applications, pervasive integration into many electronic devices, and straightforward multiplexing
Sensing without cross-sensitivities and resistance to chemical and environmental interferents
Designed with Application-specific Requirements In Mind
Dynamic technical tuneability, a SWAP-C with parity or advantage over existing technology, specialized sensor performance, calibration infrequent or not needed.