A multi-tube, spirally-wound, cryogenic heat exchanger, the main heat exchanger (MHE) is the principal piece of heat-transfer equipment in mixed-refrigerant liquefaction cycles for producing liquefied natural gas (LNG). An MHE unit operation model called the spirally-wound tube-bundle module was developed as an integral component of the dynamic simulation capabilities for a process modeling pac...

I conducted research to enable the US Minerals Management Service (MMS) to maximize natural gas royalties. MMS is the agency of the US Department of the Interior responsible for managing mineral royalties. As part of managing royalties, MMS decides whether to accept royalties in value (cash payment, RIV) or in kind (physical transfer of gas, RIK). When MMS collects RIK, it also decides how to t...

Background for the model: The model tries to determine optimal allocation of natural gas in the time horizon between 1 and 3 years by minimizing both • shortages of natural gas and • the direct costs of supplying natural gas. In order to obtain these goals, the time horizon is divided into smaller decision time periods whose durations depend on the following: • The uncertainty in future weather...

The increment integration of renewable distributed energies means the desired operation of the electric power system will significantly depend on the performance of primary energy. In this order, an integrated approach for mutual interaction between the electricity and natural gas systems has been considered for the purpose of ensuring optimal energy exchanging between the electric power system...

THIS ARTICLE DEVELOPS A FORMAL MODEL FOR COMPARING THE COST STRUCTURE OF THE TWO MAIN TRANSPORT OPTIONS FOR NATURAL GAS: liquefied natural gas (LNG) and pipelines. In particular, it evaluates how variations in the prices of natural gas and greenhouse gas emissions affect the relative cost-efficiency of these two options. Natural gas is often promoted as the most environmentally friendly of all ...