high-cycle efficiency
31Life cycle assessment — A life cycle assessment (LCA, also known as life cycle analysis, ecobalance, and cradle to grave analysis) is the investigation and valuation of the environmental impacts of a given product or service caused or necessitated by its existence.… …
32Hell and High Water (book) — Infobox Book name = Hell and High Water title orig = translator = image caption = author = Joseph J. Romm illustrator = cover artist = country = language = English series = subject = genre = publisher = HarperCollins pub date = 2006 english pub… …
33Heat pump and refrigeration cycle — Thermodynamic heat pump and refrigeration cycles are the models for heat pumps and refrigerators. The difference between a heat pump and a normal air conditioner is that a heat pump can be used to heat a home as well as cool it. Even though the… …
34Variable Cycle Engine — In a Variable Cycle Engine (VCE) the engine cycle is deliberately modified from that which would occur under normal circumstances.The next generation of Supersonic transport (SST) may require some form of VCE. SST engines require a high Specific… …
35Carnot cycle — Thermodynam. an ideal cycle of reversible engine operations in which a substance at one temperature is compressed adiabatically to a second temperature, expanded isothermally at the second temperature, expanded adiabatically from the second… …
36Comparisons of life-cycle greenhouse gas emissions — attempt to calculate the emissions of greenhouse gases or solely carbon dioxide over the full life of a power source, from groundbreaking to fuel sources to waste management back to greenfield status. Contents 1 2008 Sovacool survey 2 2007 Oxford …
37Instructions Per Cycle — In computer architecture, Instructions Per Clock (Instruction Per Cycle or IPC) is a term used to describe one aspect of a processor s performance: the average number of instructions executed for each clock cycle. It is the multiplicative inverse …
38Volumetric efficiency — in internal combustion engine design refers to the efficiency with which the engine can move the charge into and out of the cylinders. More correctly, volumetric efficiency is a ratio (or percentage) of what volume of fuel and air actually enters …
39Product life cycle management — is the succession of strategies used by management as a product goes through its product life cycle. The conditions in which a product is sold changes over time and must be managed as it moves through its succession of stages. Product life… …
40Air cycle machine — An air cycle machine (ACM) is the refrigeration unit of the environmental control system used in pressurized turbine powered aircraft. Normally an aircraft has two to three of these machines arranged in a system called a pack . The cooling… …
