Since solid oxide fuel cells (SOFC) produce electricity with high energy conversion efficiency, and chemical looping combustion (CLC) is a process for fuel conversion with inherent CO2 separation, a novel combined cycle integrating coal gasification, solid oxide fuel cell, and chemical looping...

This paper critically reviews the state of the art of an approach to supply energy to earth from space mirrors that would be placed in orbit with angle control to reflect solar radiation to specific sites on earth for illumination, and also presents our (i) optical and mechanical tests to...

The thermodynamic advantages of fuel-cell systems are studied to: 1.(i) evaluate the increase in plant exergy efficiency when incorporating fuel-cell units into electrical power generating stations and2.(ii) identify and discuss their effect on the components of such plant systems. Topping...

Performance criteria, such as efficiencies and coefficients of performance, for energy systems, are commonly used but often without sufficient understanding and consistence. The situation becomes particularly incoherent when simultaneous energy interactions of different types, such as work,...

Recent estimates and forecasts of the oil, gas, and coal resources and their reserve/production ratio, nuclear and renewable energy potential, and energy uses are surveyed. A brief discussion of the status and prospects of fossil, nuclear and renewable energy use, and of power generation...

Two novel system configurations were proposed for oxy-fuel natural gas turbine systems with integrated steam reforming and CO2 capture and separation. The steam reforming heat is obtained from the available turbine exhaust heat, and the produced syngas is used as fuel with oxygen as the...

An instrumentation design and implementation plan for monitoring the performance of solar heating systems and of their components is described. Specifically the selection of the data acquisition system and of the sensors, the procurement process and installation and calibration principles are...