Pelleting costs money, and better pellets cost a little more. Payback comes in the form of convenience in handling the feed and more efficient use of the feed by the animal. Improved efficiency is due in part to heat processing which reduces pathogens and makes starches more digestible. A significant portion of the improvement is related to the physical form of the pellet. Durable pellets reduc...

BACKGROUND This report reviews approaches and tools for measuring the impact of research programmes, building on, and extending, a 2007 review. OBJECTIVES (1) To identify the range of theoretical models and empirical approaches for measuring the impact of health research programmes; (2) to develop a taxonomy of models and approaches; (3) to summarise the evidence on the application and use of...

In photovoltaic system installations worldwide, the use of bifacial technology has begun to be more frequent due reduction cost gap associated with manufacture modules compared monofacial, encouraged by technological maturation modules. This research focuses on assessing technical and financial viability a solar technology, comparing 4 scenarios different albedos (0.15, 0.2, 0.3 0.4) respect ba...

The aim of the study is to present an economic analysis of a micro cogeneration system using financial analysis (energy view) and exergoeconomic analysis (exergy view). This system uses a natural gas-fueled 30 kW microturbine to generate electricity, and to produce hot water by recovering energy from the waste heat in the exhaust gases by using a heat exchanger, which serves as the drive source...