Results 1 - 10 of 7,096

1 Geothermal Space Heating

by Dr. R. Gordon Bloomquist, Ph. D
"... The use of geothermal resources for space heating dominates the direct use industry with approximately 37 % of all direct use development. Of this, 75 % is provided by district heating systems. In fact, the earliest known commercial use of geothermal energy was in Chaudes-Aigues Cantal, France, wher ..."
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The use of geothermal resources for space heating dominates the direct use industry with approximately 37 % of all direct use development. Of this, 75 % is provided by district heating systems. In fact, the earliest known commercial use of geothermal energy was in Chaudes-Aigues Cantal, France

Neural Network Controller for a geothermal Space Heating System

by Hanaa M. Farghally, Faten H. Fahmy, Mohamed A. H. El-sayed
"... Abstract-Thermal comfort requires constant indoor air temperature during the day. In summer, the outside air temperature usually exceeds the inside temperature and a heat flux from the ambient to the interior of the building occurs. In winter a heating system for building is needed to compensates th ..."
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the heat loss and maintains comfortable temperature. In this paper a neural network (NN) controller for achieving the constant indoor temperature, using a geothermal space heating system, is proposed. The geothermal space heating system is designed for three buildings (i.e. school, home & emergency

Performance of PV/Wind –Powered Geothermal Space Heating System in Egypt

by Hanaa M. Fargali, Faten H. Fahmy, Mohamed A. Hassan
"... Abstract-Given the increasing demand for cleaner, accessible and more economical energy sources, the utilization of geothermal, solar and wind energy are gaining worldwide momentum. Direct utilization of geothermal energy consists of various forms of heating and cooling instead of converting the ene ..."
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the energy for electric power generation. The major areas of direct utilization are: heating of swimming pools and for space heating and cooling including district heating; agriculture applications (greenhouse heating and crop drying); aquaculture applications; industrial processing; and geothermal heat

Laplacian Eigenmaps for Dimensionality Reduction and Data Representation

by Mikhail Belkin, Partha Niyogi , 2003
"... One of the central problems in machine learning and pattern recognition is to develop appropriate representations for complex data. We consider the problem of constructing a representation for data lying on a low-dimensional manifold embedded in a high-dimensional space. Drawing on the correspondenc ..."
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One of the central problems in machine learning and pattern recognition is to develop appropriate representations for complex data. We consider the problem of constructing a representation for data lying on a low-dimensional manifold embedded in a high-dimensional space. Drawing

Laplacian eigenmaps and spectral techniques for embedding and clustering.

by Mikhail Belkin , Partha Niyogi - Proceeding of Neural Information Processing Systems, , 2001
"... Abstract Drawing on the correspondence between the graph Laplacian, the Laplace-Beltrami op erator on a manifold , and the connections to the heat equation , we propose a geometrically motivated algorithm for constructing a representation for data sampled from a low dimensional manifold embedded in ..."
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Abstract Drawing on the correspondence between the graph Laplacian, the Laplace-Beltrami op erator on a manifold , and the connections to the heat equation , we propose a geometrically motivated algorithm for constructing a representation for data sampled from a low dimensional manifold embedded

Qualitative process theory

by Kenneth D. Forbus - MIT AI Lab Memo , 1982
"... Objects move, collide, flow, bend, heat up, cool down, stretch, compress. and boil. These and other things that cause changes in objects over time are intuitively characterized as processes. To understand commonsense physical reasoning and make programs that interact with the physical world as well ..."
Abstract - Cited by 899 (92 self) - Add to MetaCart
Objects move, collide, flow, bend, heat up, cool down, stretch, compress. and boil. These and other things that cause changes in objects over time are intuitively characterized as processes. To understand commonsense physical reasoning and make programs that interact with the physical world as well

FLAT-RATE vs. BTU METERS WARREN ESTATES AND MANZANITA ESTATES RESIDENTIAL GEOTHERMAL DISTRICT SPACE HEATING

by Thomas Flynn
"... located in southwest Reno, Nevada, (Figure 1) comprise the largest residential geothermal space heating district in Nevada. ..."
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located in southwest Reno, Nevada, (Figure 1) comprise the largest residential geothermal space heating district in Nevada.

Diffusion kernels on graphs and other discrete input spaces

by Risi Imre Kondor, John Lafferty - in: Proceedings of the 19th International Conference on Machine Learning , 2002
"... The application of kernel-based learning algorithms has, so far, largely been confined to realvalued data and a few special data types, such as strings. In this paper we propose a general method of constructing natural families of kernels over discrete structures, based on the matrix exponentiation ..."
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idea. In particular, we focus on generating kernels on graphs, for which we propose a special class of exponential kernels called diffusion kernels, which are based on the heat equation and can be regarded as the discretization of the familiar Gaussian kernel of Euclidean space.

II.1. GEOTHERMAL DISTRICT HEATING

by John W. Lund, John W. Lund, Paul J. Lienau
"... Geothermal district heating is defined as the use of one or more production fields as sources of heat to supply thermal energy to a group of buildings. Services available from a district heating system are space heating, domestic water heating, space cooling, and industrial process heat. A district ..."
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Geothermal district heating is defined as the use of one or more production fields as sources of heat to supply thermal energy to a group of buildings. Services available from a district heating system are space heating, domestic water heating, space cooling, and industrial process heat. A district

Analysis of Geothermal Heating System for Buildings

by R K Pal
"... One-third of the world energy utilization is for space heating and cooling. Steady increase in the prices of sources of energy and electricity has resulted in more and more use of alternate sources of energy such as geothermal energy for heating and cooling. Maximum heat loss from the building and w ..."
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One-third of the world energy utilization is for space heating and cooling. Steady increase in the prices of sources of energy and electricity has resulted in more and more use of alternate sources of energy such as geothermal energy for heating and cooling. Maximum heat loss from the building
Results 1 - 10 of 7,096