John Kasab

• PhD in Chemical Engineering
• General Engineer at United States Environmental Protection Agency

The California Air Resources Board and US Environmental Protection Agency have defined their new ultra-low NOx standards for heavy-duty diesel engines (HDDE) over the last two years. In parallel, AVL has continued its research on how to meet these new limits and to address the continuing challenge of cold start emissions from HDDE, including incorp...

The objective of this book is to present a fundamental development of the science and engineering underlying the design of exhaust aftertreatment systems for automotive internal combustion engines. No pre-requisite knowledge of the field is required: our objective is to acquaint the reader, whom we expect to be new to the field of emissions contro...

In April 2019, the California Air Resources Board (CARB) released its white paper on the ultra-low NOx standard for heavy-duty diesel engines (HDDE)[1]. AVL has been conducting research on how to meet these new limits and to address the continuing challenge of cold start emissions from HDDE, including incorporating • Advanced thermal management st...

AVL Powertrain Engineering Inc. is executing an internally funded research and development program to find cost-effective design solutions to meet MY2025 CAFE and greenhouse gas targets as well as SULEV 30 or Tier 3 bin 30 criteria pollutant standards. Program efforts, focused on the premium SUV segment, include setting vehicle performance requirem...

This paper reviews the technical approach and reports on the results of ASPEN Plus® modeling of two patented approaches for integrating a gas turbine with reciprocating internal combustion engine for lower emissions and higher efficiency power generation. In one approach, a partial oxidation gas turbine (POGT) is located in the 1st stage, and the H...

The full report is available from the International Council on Clean Transportation (ICCT) at www.theicct.org/sites/default/files/publications/Ricardo_LDV%20EU%20Technology%20Potential%20Analysis.pdf

The U.S. Environmental Protection Agency, U.S. Department of Transportation's National Highway and Traffic Safety Administration, and the California Air Resources Board have recently released proposed new regulations for greenhouse gas emissions and fuel economy for light-duty vehicles and trucks in model years 2017-2025. These proposed regulations...

Ricardo, Inc. was subcontracted by Systems Research and Applications Corporation (SRA), a wholly owned subsidiary of SRA International, Inc., under contract to the United States Environmental Protection Agency (EPA) to assess the effectiveness of future light duty vehicle (LDV) technologies on future vehicle performance and greenhouse gas (GHG) emi...

http://www.cleers.org/workshops/workshop13/presentations/Kasab_2010_CLEERS.pdf

A data-based model of surface states in packed tubes is joined with an intraparticle di!usion}reaction model to describe reactors with signi"cant intraparticle gradients. This modelling approach is demonstrated with steady-state simulations of the partial oxidation of n-butane to maleic anhydride in a packed-tube reactor with spherical particles an...

A novel boundary element procedure called the Quasilinear Boundary Element Method (QBEM) is developed to solve two dimensional non-linear Poisson type problems. The forcing function of the Poisson type equation is linearized and the resulting terms are transferred to the boundary using a fourth order transformation. This results in boundary only di...