Showing 61 - 70 of 83
Persistent link: https://www.econbiz.de/10005179977
Due to varied global challenges, potential energy solutions are needed to reduce environmental impact and improve sustainability. Many of the renewable energy resources are of limited applicability due to their reliability, quality, quantity, and density. Thus, the need remains for additional...
Persistent link: https://www.econbiz.de/10010580737
The gross domestic product (GDP) measures the value of goods and services produced in a country in one year. There is a close relationship between the GDP and energy supply (and consumption). This relationship is a good indication of the level of economic development of a country. The GDP per...
Persistent link: https://www.econbiz.de/10008913996
There is an intimate connection between energy, the environment and sustainable development. A society seeking sustainable development ideally must utilize only energy resources which cause no environmental impact (e.g. which release no emissions to the environment). However, since all energy...
Persistent link: https://www.econbiz.de/10008914042
Fourier and Reynolds correlations are presented for determining the values of thermal parameters defined in terms of the half cooling times and seven-eighths cooling times for spheres and cylinders being cooled in air or water flows. In this respect, an experimental, modeling and...
Persistent link: https://www.econbiz.de/10008917010
In this study, a methodology to determine cooling-process parameters (i.e. lag factor, cooling coefficient, half cooling time and seven-eighths cooling time) and an analytical model for determining film conductances during cooling of spherical food products were proposed. Temperature...
Persistent link: https://www.econbiz.de/10008917055
This paper presents a new mathematical model for determining thermal diffusivities of very common solid geometrical objects such as an infinite slab, infinite cylinder, or sphere cooled in a medium. In practice the model will be implemented by using the center temperature measurements of these...
Persistent link: https://www.econbiz.de/10008919199
This paper deals with a comprehensive analysis and discussion of geothermal district heating systems and applications. In this regard, case studies are presented to study the thermodynamic aspects in terms of energy and exergy and performance improvement opportunities of three geothermal...
Persistent link: https://www.econbiz.de/10008920199
In this paper, a thorough review of photovoltaic and photovoltaic thermal systems is done on the basis of its performance based on electrical as well as thermal output. Photovoltaic systems are classified according to their use, i.e., electricity production and thermal applications along with...
Persistent link: https://www.econbiz.de/10008920224
Achieving solutions to environmental problems that we face today requires long-term potential actions for sustainable development. In this regard, renewable energy resources appear to be the one of the most efficient and effective solutions. That is why there is an intimate connection between...
Persistent link: https://www.econbiz.de/10008920690