Process operations energy transfer

Location of Transfer Stations Whenever possible, transfer stations should be located (1) as near as possible to the weighted center of the individual solid-waste-produciion ares to be served, (2) within easy access of major arterial highways as well as near secondary or supplemental means of transportation, (3) where there will be a minimum of pubhc and environmental objection to the transfer operations, and (4) where construction and operation will be most economical. Additionally, if the transfer-station site is to be used for processing operations involving material recovery and/or energy production, the requirements for those operations must be considered. 

An electrochemical cell is a device by means of which the enthalpy (or heat content) of a spontaneous chemical reaction is converted into electrical energy conversely, an electrolytic cell is a device in which electrical energy is used to bring about a chemical change with a consequent increase in the enthalpy of the system. Both types of cells are characterised by the fact that during their operation charge transfer takes place at one electrode in a direction that leads to the oxidation of either the electrode or of a species in solution, whilst the converse process of reduction occurs at the other electrode. 

How are the energy transfer requirements for the process best accomplished Should one operate isothermally, adiabatically, or in accord with an alternative temperature protocol ... 

The success of the energy transfer theory in correlating data for a number of systems with sensitizers of widely varying structure, particularly aromatic hydrocarbons for which bond formation between donor and acceptor does not appear to be a reasonable process, led to its acceptance as the general mechanism for photosensitized olefin isomerization. However, there are special cases in which another mechanism of sensitization is operative. 

---