Such changes could save the industry billions of dollars in upgrades that utility officials said would otherwise hamper their expansion and efficiency.
The reason Banespa's staff were wailing is that they know this means big job cuts: at the smaller Brazilian banks that it bought earlier, BSCH cut average staff per branch to 16, whereas a typical Banespa branch has 38.Even with such scope for expansion and efficiency gains, making a decent return from Banespa will be a "wonderful challenge", says Laurence Madsen, a bank analyst at UBS Warburg.
"Over the last 10 years, Exxon Mobil alone has built the equivalent of three average-sized refineries through expansions and efficiency gains at existing U.S. refineries". There has not been a new refinery built in the United States since 1976.
The study shows this improvement originates from both changes in the system design (e.g. two stage expansion) and components efficiency improvement (e.g. higher total efficiency of compressors - lower internal superheat and higher evaporation temperatures of cabinets).
Expansion and compression efficiencies are introduced in the model to account for the losses in these processes.
India is due to ask the UK and other rich nations to share breakthroughs in renewable energy and other "clean" technology, and for help financing a huge expansion in efficiency and solar and wind power.
A novel mechanical arrangement has been designed for low cost, and a steam-jacketed arrangement has been designed for isothermal expansion and improved thermodynamic efficiency.
In the irreversible cycle model, the non-linear relation between the specific heat of the working fluid and its temperature, the friction loss computed according to the mean velocity of the piston, the internal irreversibility described by using the compression and expansion efficiencies, and the heat-transfer loss are considered.
In the model, the nonlinear relation between the specific heats of working fluid and its temperature, the frictional loss computed according to the mean velocity of the piston, the internal irreversibility described by using the compression and expansion efficiencies, and heat transfer loss are considered.
In the model, the linear relation between the specific heat ratio of the working fluid and its temperature, the friction loss computed according to the mean velocity of the piston, the internal irreversibility described by using the compression and expansion efficiencies and the heat transfer loss are considered.
An expansion of demand management and efficiency programs would limit the number of future power plants that will be required and reduce the use of the most expensive plants, said ACEE's Rachel Gold.
