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4554966 Heat-transfer device
New Patents
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4554793
4554966
CONTROLLED POWER CONVERTER FOR THERMOELECTRIC HEAT PUMP DRIVE
HEAT-TRANSFER DEVICE
John C Harding assigned to General Eastern Instruments Corporation A controlled power conversion system for providing power to a thermoelectric heat pump for controlling the temperature of a device, such as a chilled mirror used in a chilled mirror humidity sensor. The system uses means, responsive to a DC input power source and to a control signal representing changes in the temperature of the device, for providing periodic pulses of the DC input power having a duty cycle which is controllable in accordance with the control signal. The input power is time-averaged and an energy storage means, responsive to the periodic pulses of DC input power, is utilized to provide a controllable time averaged DC power output to the heat pump.
Leonard L Vasiliev, Vladimir G Kiselev, Valery A Morgun, Anatoly M Marchenko, Evgeny Rudnev, Vasily Nesvit, Leonid M Dunaevsky, Nikolai F Tverdokhleb, Vladimir Bogdanov, Mikhail Rabetsky, Minsk, Union Of Soviet Socialist Republics The present invention relates to heat engineering. The essence of the present invention consists in that a condensation chamber is installed essentially horizontally along the object being heated; the device comprises at least two branch pipes: vapour-flow and fluid-flow, which are used for communicating the space of the condensation chamber and the space of the tube with the space of the evaporation chamber.
4555310 METHOD OF UTILIZING ENERGY OF HIGH PRESSURE CONDENSATE Ronald E Marrelli assigned to Phillips Petroleum Company
4554963 METHOD AND APPARATUS FOR A FLUIDIZED BED HEAT EXCHANGER Alton C Goodwin, Mark T Junglen, John S Kent assigned to Baker International Corporation A fluidized bed heat exchanger having a plurality of tubes for passing a primary medium, a particulate matter bed, and side and base inlet conduits for passing the primary medium fluid into the heat exchanger with the base inlet conduit adapted to receive the primary medium and fluidizing the particulate matter bed. The primary medium passing through the inlet conduits is controllable to maintain a desired amount of fluidized particulate matter within the tubes when descaling is desired and reduced at the base inlet conduit to eliminate the fluidized particulate matter from flowing within the tubes when descaling is not desired while flow of the primary medium through the tubes is maintained.
A method of utilizing the energy of a high pressure condensate stream including passing steam at an elevated pressure in indirect heat exchange with a material to be heated, collecting a condensate product condensed from the steam of the heat exchange step at an elevated pressure, passing the condensate directly to a steam stripping step at essentially the same pressure at which the condensate was collected and reducing the pressure of the condensate while simultaneously contacting the condensate with a material to be stripped in the stripping step.
4555311 INTEGRATED FRACTIONATION IN THE RECOVERY OF ALKYLAROMATIC HYDROCARBONS Dennis Ward assigned to UOP Inc A method is disclosed for fractionating a hydrocarbon conversion zone effluent stream comprising at least three components which are to be
v
4554793
4554966
CONTROLLED POWER CONVERTER FOR THERMOELECTRIC HEAT PUMP DRIVE
HEAT-TRANSFER DEVICE
John C Harding assigned to General Eastern Instruments Corporation A controlled power conversion system for providing power to a thermoelectric heat pump for controlling the temperature of a device, such as a chilled mirror used in a chilled mirror humidity sensor. The system uses means, responsive to a DC input power source and to a control signal representing changes in the temperature of the device, for providing periodic pulses of the DC input power having a duty cycle which is controllable in accordance with the control signal. The input power is time-averaged and an energy storage means, responsive to the periodic pulses of DC input power, is utilized to provide a controllable time averaged DC power output to the heat pump.
Leonard L Vasiliev, Vladimir G Kiselev, Valery A Morgun, Anatoly M Marchenko, Evgeny Rudnev, Vasily Nesvit, Leonid M Dunaevsky, Nikolai F Tverdokhleb, Vladimir Bogdanov, Mikhail Rabetsky, Minsk, Union Of Soviet Socialist Republics The present invention relates to heat engineering. The essence of the present invention consists in that a condensation chamber is installed essentially horizontally along the object being heated; the device comprises at least two branch pipes: vapour-flow and fluid-flow, which are used for communicating the space of the condensation chamber and the space of the tube with the space of the evaporation chamber.
4555310 METHOD OF UTILIZING ENERGY OF HIGH PRESSURE CONDENSATE Ronald E Marrelli assigned to Phillips Petroleum Company
4554963 METHOD AND APPARATUS FOR A FLUIDIZED BED HEAT EXCHANGER Alton C Goodwin, Mark T Junglen, John S Kent assigned to Baker International Corporation A fluidized bed heat exchanger having a plurality of tubes for passing a primary medium, a particulate matter bed, and side and base inlet conduits for passing the primary medium fluid into the heat exchanger with the base inlet conduit adapted to receive the primary medium and fluidizing the particulate matter bed. The primary medium passing through the inlet conduits is controllable to maintain a desired amount of fluidized particulate matter within the tubes when descaling is desired and reduced at the base inlet conduit to eliminate the fluidized particulate matter from flowing within the tubes when descaling is not desired while flow of the primary medium through the tubes is maintained.
A method of utilizing the energy of a high pressure condensate stream including passing steam at an elevated pressure in indirect heat exchange with a material to be heated, collecting a condensate product condensed from the steam of the heat exchange step at an elevated pressure, passing the condensate directly to a steam stripping step at essentially the same pressure at which the condensate was collected and reducing the pressure of the condensate while simultaneously contacting the condensate with a material to be stripped in the stripping step.
4555311 INTEGRATED FRACTIONATION IN THE RECOVERY OF ALKYLAROMATIC HYDROCARBONS Dennis Ward assigned to UOP Inc A method is disclosed for fractionating a hydrocarbon conversion zone effluent stream comprising at least three components which are to be