Alph 1.5

The latest version of Alph 1.5, a ?uid property and process calculator for the Apple iPad, iPhone, and iPod Touch, now includes an option to increase the library of compounds to over 5,600 and add VMGThermo’s non-random two-liquid (NRTL) model to the existing Advanced Peng-Robinson and steam packages. This greatly extends the range of process simulation tasks that can be addressed and is a cost-effective approach for users whose needs or budgets do not require a full process simulator. Alph uses the same VMGThermo engine that powers the VMGSim process simulator. In addition to two- and three-phase ?ash calculations, ?uid property predictions, phase envelopes, and hydrate predictions, the software has built-in tools for performing distillation calculations and solving multiple equations. The Alph Information Flow Diagram (IFD), which is based on a diagram that resembles a mind map, clearly shows where each entity in the problem obtains its inputs and where its calculated values are used in other objects. This version also brings compatibility with the fast-switching and iTunes ?le-sharing of iOS 4 and the ability to export phase envelope results to a spreadsheet.