Results 261 to 270 of about 63,706 (311)
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HEAT EXCHANGER FOR IN-GROUND HEAT STORAGE
Chemical Engineering Communications, 1980The first phase of a research project using undisturbed soil for sensible heat storage is described. A laboratory scale model of a heat exchange system was constructed and tested. Thermal charging and recovery rates, modes of heat transport and transient temperature conditions, as well as over-all heat storage performance of the unit are given.
Svec, O. J., Palmer, J. H. L.
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The Laryngoscope, 1981
AbstractStudies of the effects of nasal respiration on the lower respiratory tract, and on metabolic processes generally, have largely been confined to those occurring during inspiration. Expiration through the nose has equally profound effects and has been studied in detail in some animals.Under certain circumstances both heat and water loss from the ...
M, Taylor, S C, Shores
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AbstractStudies of the effects of nasal respiration on the lower respiratory tract, and on metabolic processes generally, have largely been confined to those occurring during inspiration. Expiration through the nose has equally profound effects and has been studied in detail in some animals.Under certain circumstances both heat and water loss from the ...
M, Taylor, S C, Shores
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Matériaux & Techniques, 1992
Plastic properties may be used in the manufacturing of heat exchangers. Considering their advantages, their field of application is quite large: low temperature heat recovery, concentration of solutions. Three equipment are described: a liquid-liquid shell and tube exchanger, a gas-gas shell exchanger and a falling flow evaporator.
Philippe Bandelier +2 more
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Plastic properties may be used in the manufacturing of heat exchangers. Considering their advantages, their field of application is quite large: low temperature heat recovery, concentration of solutions. Three equipment are described: a liquid-liquid shell and tube exchanger, a gas-gas shell exchanger and a falling flow evaporator.
Philippe Bandelier +2 more
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Automatica, 1964
An apparatus is described, which is intended for electrical analog simulation of the thermal behaviour of structures in contact with fluid flows, either when the structure is heat generating or not (for instance fuel elements of heterogeneous nuclear reactors, heat exchangers, and so on). The apparatus is based on a ten channel-ten position commutator,
S. Barabaschi +3 more
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An apparatus is described, which is intended for electrical analog simulation of the thermal behaviour of structures in contact with fluid flows, either when the structure is heat generating or not (for instance fuel elements of heterogeneous nuclear reactors, heat exchangers, and so on). The apparatus is based on a ten channel-ten position commutator,
S. Barabaschi +3 more
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The research of optimal design of heat exchanger in heat exchanger heat meter
Proceedings of 2011 International Conference on Modelling, Identification and Control, 2011In heat exchanger heat meter, the heat exchanger is equivalent to a flowmeter. The flow and heat can be calculated by measuring the inlet and outlet temperature of heat exchanger. It greatly prevents the flowmeter from the problem of inaccuracy and damage which are caused by the quality of water.
Li Meng, Fang Bin
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1992
Heat exchangers are used to transfer heat from a hot fluid to a cold fluid. In general, the two fluids flow through appropriate channels (tubes, spaces between parallel plates or between tubes) within the equipment. Solid surfaces made of metal or, less often, of some polymer (teflon, e.g.) separate the fluids.
Melo, Luís Manuel Ferreira +1 more
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Heat exchangers are used to transfer heat from a hot fluid to a cold fluid. In general, the two fluids flow through appropriate channels (tubes, spaces between parallel plates or between tubes) within the equipment. Solid surfaces made of metal or, less often, of some polymer (teflon, e.g.) separate the fluids.
Melo, Luís Manuel Ferreira +1 more
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Dynamic models for heat exchangers and heat exchanger networks
Computers & Chemical Engineering, 1994Abstract Dynamic models are needed to assess controllability of heat exchangers and heat exchanger networks. A simple model is desirable, but all important model features must be included. We discriminate between important and less important model features by order of magnitude argumentation, comparison of controllability measures and dynamic ...
Knut W. Mathisen +2 more
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Efficiency analysis of heat exchangers and heat exchanger networks
International Journal of Heat and Mass Transfer, 2014Abstract The concept of heat exchanger efficiency eliminates the need for charts, or complicated performance expressions, providing a convenient approach for solving heat exchanger rating, and sizing problems, as well as network of heat exchangers. The efficiency of all heat exchangers is determined from a single algebraic expression.
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Stream-Symmetry of Heat Exchangers and Heat Exchanger Assemblies
Heat Transfer Engineering, 1984Sufficient conditions are given for a heat exchanger or an assembly of heat exchangers to be invariant under the interchange of the two fluids. Analysis of this symmetry is performed on tht basis of geometrical or topological properties of the exchanger, and no prior knowledge of the exchanger solution is required.
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Chemistry in Britain, 2001
Article describing heated exchanges.
Lue, L., Woodcock, L. V.
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Article describing heated exchanges.
Lue, L., Woodcock, L. V.
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