Overview
The task includes quantifying real-world emissions from individual CHC operating in California. Previously, CARB staff has assumed real-world emissions follow the measurements recorded during the engine certification cycle; however, DPM and NOx emitted from CHC may be higher in the real world than during certification even when accounting for expected deterioration of emission control systems. A Portable Emissions Measurement System (PEMS) will be used to characterize emissions from three (3) CHC vessels for CARB’s inventory modeling. In an effort to choose the most appropriate vessels to characterize in more detail using PEMS, UCR will work with CARB staff to choose vessels based on emission factor data from the pool of vessels characterized using remote sensing methods done by other team members with separate budgets. UCR will measure DPM and NOx emissions over transient operation conditions over 2 consecutive weeks for three CHC vessels. UCR will analyze the data and report the result to ARB and the team. This project includes UCB, USC and UCR. UCB is a leading institution (and others are subcontractors) for contract purpose and each institution has a separate SOW. The above is SOW for UCR.
Lead Researcher: Dr. Heejung Jung