Results 161 to 170 of about 7,242 (195)
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Studies on the recovery of heated bacteria
Canadian Journal of Microbiology, 1972The influence of ultraviolet (uv.) irradiation on the recovery from heat-induced damage was studied. It was observed that the recovery phenomenon remained unaffected by ultraviolet treatment. The cells subjected to heat treatment at 52 °C were also allowed to recover under the influence of bacterial extract. No recovery of heat damage with extract was
P, Mukherjee, S B, Bhattacharjee
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Heat recovery in thermoplastics production
Energy Conversion and Management, 2002An energy optimization of production of a thermoplastic material nylon-6 using boiler flue gases heat recovery is presented. Energy and environmental studies show an increase of process efficiency simultaneously with a decrease of thermal pollution. Various combinations of flue gases heat recovery for combustion air or feed water preheating result in ...
Mihelić-Bogdanić, Alka, Budin, Rajka
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Heat Pipe Waste Heat Recovery Boilers
Journal of Heat Recovery Systems, 1981Abstract The use of the heat pipe as a component in a heat recovery device has gained worldwide acceptance; over one million gravity-assisted heat pipes are now installed in commercial and industrial heat recovery applications. Heat pipes are passive, highly reliable and offer high heat transfer rates.
D.A. Littwin, J. McCurley
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Heat recovery in vertical systems
Journal of Heat Recovery Systems, 1981Abstract In this paper, the most important results in the framework of developing and testing gravity-type heat pipes in a large-space stable are reported. These results involve the optimum volume of the heat-transfer medium (ammonia), the course of efficiency in dependence on the temperature differential between exhaust air and outside air, and the ...
H. Hettwer, H.-H. Bath
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Heat recovery in reciprocating engine
35th Joint Propulsion Conference and Exhibit, 1999In this work, through the utilisation of a thermodynamic numeric code, ,it has been studied the possibility to introduce an heat exchanger to transfer the residual enthalpy present inthe exhaust gas of a .piston engine to a compressor-turbine system. Different configurations -have been considered, but the most promising of them, under the point of view
ANDRIANI, ROBERTO, GHEZZI, UMBERTO
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2000
If the flow of refrigerant in a cooling system is reversed, the heat exchanger which was the evaporator becomes the condenser and vice versa and the flow of energy is reversed. Reversing valves may be fitted to cooling circuits in order to divert hot gas for defrosting the evaporator or to provide heat in winter to a conditioned space.
A.R. Trott, T. Welch
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If the flow of refrigerant in a cooling system is reversed, the heat exchanger which was the evaporator becomes the condenser and vice versa and the flow of energy is reversed. Reversing valves may be fitted to cooling circuits in order to divert hot gas for defrosting the evaporator or to provide heat in winter to a conditioned space.
A.R. Trott, T. Welch
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2008
All refrigeration systems are heat pump (HP) such that heat is pumped from a cool environment to a warmer one, so the sole purpose of a heat pump is to deliver heat. The HP type and performance is characterized by the nature of the source, that is, the medium from which heat is extracted by the evaporator, and the sink, that is the distribution of heat
G.F. Hundy, A.R. Trott, T.C. Welch
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All refrigeration systems are heat pump (HP) such that heat is pumped from a cool environment to a warmer one, so the sole purpose of a heat pump is to deliver heat. The HP type and performance is characterized by the nature of the source, that is, the medium from which heat is extracted by the evaporator, and the sink, that is the distribution of heat
G.F. Hundy, A.R. Trott, T.C. Welch
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Dynamic analysis of heat recovery process for a continuous heat recovery adsorption heat pump
Energy Conversion and Management, 2002The heat recovery cycle plays an important role in improving the operational performance of a continuous heat recovery adsorption heat pump. The real heat recovery ratio would be less than the ideal heat recovery ratio because of the limited heat transfer coefficient of the adsorber.
J.Y. Wu, R.Z. Wang, Y.X. Xu
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Heat Recovery With Oscillating Heat Pipes
Volume 11: Emerging Technologies, 2013Waste-heat recovery applied in HVAC air systems is of interest to increase the energy efficiency of residential, commercial and industrial buildings. In this study, the feasibility of using tubular-shaped oscillating heat pipes (OHPs), which are two-phase heat transfer devices with ultra-high thermal conductivity, for heat exchange between counter ...
Charles R. McCullough +2 more
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The Journal of the Acoustical Society of America, 1985
A heat recovery muffler comprising an outer body and having an annular heat exchanger disposed within the body and spaced from the ends thereof. The heat exchanger is provided with a central opening and an exhaust gas inlet pipe is located within the central opening and spaced inwardly therefrom to provide an annular passage.
Mostafa M. Khosropour, Thomas C. Learn
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A heat recovery muffler comprising an outer body and having an annular heat exchanger disposed within the body and spaced from the ends thereof. The heat exchanger is provided with a central opening and an exhaust gas inlet pipe is located within the central opening and spaced inwardly therefrom to provide an annular passage.
Mostafa M. Khosropour, Thomas C. Learn
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