For the October issue of Pumps & Systems, Brooks Marketing Manager Wes Sund contributed an article titled, "Mass-Based Propane Odorant Injection System." In the article, Wes describes the traditional method for propane odorization, as well as advances that provide the following benefits: higher accuracy to minimize odorant consumption; no moving parts for reliable operation and minimal maintenance; and documentation of actual odorant dosing rates. The advances are made through mass flow controllers with Coriolis sensor technology.
Here's an excerpt from the article:
A liquid mass flow controller based on Coriolis technology was selected as a technology that would provide these desired benefits. The operating concept of a mass flow controller-based odorization system is very simple. The odorant injection control system takes a reading from the propane delivery meter and calculates the flow setpoint required to meet the odorant mass/propane volume ratio specification. The flow controller is sized to meet a wide variation in propane delivery rates experienced from summer to winter.
Read the full article here.