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Heat-actuated heat pumping apparatus and process
iv
New Patents
extra brine. In addition, the ground will be insulated by the overlying solar pond so heat losses will be low and heat recovery efficiency quite high. Embodiments of the basic strategy-thermal storage in permeable material insulated by the overlying solar pond-can be economically adapted to a wide variety of solar pond applications and locations. For example, where impermeable rock underlies a pond site a pond should be designed with a very deep, lined bottom zone filled with gravel. A small amount of brine will fill and circulate through the voids in this gravel. This embodiment also gives the large insulated thermal storage desired.
~52~3 DEVICE AND A METHOD FOR RECOVERING HEAT FROM THE SOIL Theodorus P M Bontje, Gerrit Schuldink, Gerrit Heetbrink, Putter Warner de, Bernardus H Kok, Lg Dedemsvaart, Netherlands assigned to Wavin B V
~5~35 THERMAL ENERGY STORAGE AND RECOVERY APPARATUS AND METHOD FOR A FOSSIL FUEL-FIRED VAPOR GENERATOR Oliver Durrant assigned to The Babcock & Wilcox Company Apparatus and method for storing excess thermal energy of a fossil fuel-fired vapor generator during low demand periods and for recovering the stored thermal energy for use during high demand periods. A first moving bed heat exchanger is provided for flowing a bed of refractory particles in heat exchange relation with vapor generator flue-gases to receive thermal energy therefrom. At least a portion of the bed of heated refractory particles is stored. A second moving bed heat exchanger is provided for flowing at least a portion of the bed of heated refractory particles in heat exchange relation with a fluid to impart thermal energy to the fluid for-use.
~55~1 HEAT-ACTUATED HEAT PUMPING APPARATUS AND PROCESS Jaroslav Wurm, John A Kinast assigned to Institute of Gas Technology A device and method for recovering heat from the soil and groundwater, comprise heatexchanging means consisting of an inner tube, an outer tube and partitions forming longitudinal channels between said inner and outer tube. An inlet for heat-exchanging fluid and an outlet for heat-exchanging fluid are present for conveying a heat-exchanging fluid through said longitudinal channels. The heat-exchanging means are preferably placed in a perforated casing allowing passage of liquid but not of soil particles. The casing consists preferably of an outer casing tube and an inner casing tube, casing partitions providing longitudinal casing channels. For allowing passage of groundwater the outer casing tube and the inner casing tube are provided with perforations. Heat is recovered by passing a heat-exchanging fluid through the casing channels.
A heat actuated heat pumping apparatus and process having two working chambers to provide a Vuilleumier cycle for space conditioning. The working chamber volumes are in pressure communication with each other in the vicinity of intermediate thermal exchange means in each volume equalizing the pressure between the two working volumes with one module acting as the driver for the heat pumping action of the second module. Pressure communication may be maintained through a floating piston thereby providing two different intermediate heat rejection temperature levels resulting in a four temperature level Vuilleumier heat pump. The apparatus and process of this invention reduces mechanical complexity and improved thermal exchange in a heat pump system suitable for large air conditioning applications and hot water heating as well as small refrigeration and cryogenic applications.
New Patents
extra brine. In addition, the ground will be insulated by the overlying solar pond so heat losses will be low and heat recovery efficiency quite high. Embodiments of the basic strategy-thermal storage in permeable material insulated by the overlying solar pond-can be economically adapted to a wide variety of solar pond applications and locations. For example, where impermeable rock underlies a pond site a pond should be designed with a very deep, lined bottom zone filled with gravel. A small amount of brine will fill and circulate through the voids in this gravel. This embodiment also gives the large insulated thermal storage desired.
~52~3 DEVICE AND A METHOD FOR RECOVERING HEAT FROM THE SOIL Theodorus P M Bontje, Gerrit Schuldink, Gerrit Heetbrink, Putter Warner de, Bernardus H Kok, Lg Dedemsvaart, Netherlands assigned to Wavin B V
~5~35 THERMAL ENERGY STORAGE AND RECOVERY APPARATUS AND METHOD FOR A FOSSIL FUEL-FIRED VAPOR GENERATOR Oliver Durrant assigned to The Babcock & Wilcox Company Apparatus and method for storing excess thermal energy of a fossil fuel-fired vapor generator during low demand periods and for recovering the stored thermal energy for use during high demand periods. A first moving bed heat exchanger is provided for flowing a bed of refractory particles in heat exchange relation with vapor generator flue-gases to receive thermal energy therefrom. At least a portion of the bed of heated refractory particles is stored. A second moving bed heat exchanger is provided for flowing at least a portion of the bed of heated refractory particles in heat exchange relation with a fluid to impart thermal energy to the fluid for-use.
~55~1 HEAT-ACTUATED HEAT PUMPING APPARATUS AND PROCESS Jaroslav Wurm, John A Kinast assigned to Institute of Gas Technology A device and method for recovering heat from the soil and groundwater, comprise heatexchanging means consisting of an inner tube, an outer tube and partitions forming longitudinal channels between said inner and outer tube. An inlet for heat-exchanging fluid and an outlet for heat-exchanging fluid are present for conveying a heat-exchanging fluid through said longitudinal channels. The heat-exchanging means are preferably placed in a perforated casing allowing passage of liquid but not of soil particles. The casing consists preferably of an outer casing tube and an inner casing tube, casing partitions providing longitudinal casing channels. For allowing passage of groundwater the outer casing tube and the inner casing tube are provided with perforations. Heat is recovered by passing a heat-exchanging fluid through the casing channels.
A heat actuated heat pumping apparatus and process having two working chambers to provide a Vuilleumier cycle for space conditioning. The working chamber volumes are in pressure communication with each other in the vicinity of intermediate thermal exchange means in each volume equalizing the pressure between the two working volumes with one module acting as the driver for the heat pumping action of the second module. Pressure communication may be maintained through a floating piston thereby providing two different intermediate heat rejection temperature levels resulting in a four temperature level Vuilleumier heat pump. The apparatus and process of this invention reduces mechanical complexity and improved thermal exchange in a heat pump system suitable for large air conditioning applications and hot water heating as well as small refrigeration and cryogenic applications.