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5538073 Balanced dual flow regenerator heat exchanger system and core driving system
XI
ParentsALERT
5535944 COMBINED
HEAT AND POWER SYSTEM
5538707 ACID CONCENTRATION CONTROL IN SO3 ABSORPTION
Knowles Joseph Enfield, UNITED KINGDOM assigned to Tilehouse Group PLC
McAlister Donald R St Louis, MO, UNITED STATES assigned to Monsanto Company
PCT No. PCT/GB92/01199 Sec. 371 Date Dec. 29, 1993 Sec. 102(e) Date Dec. 29, 1993 PCT Filed Jul. 2, 1992 PCT Pub. No. WO93/01403 PCT Pub. Date Jan. 2 1, 1993. A combined heat and power (CPH) system for a building has an electrical generator for supply power and a gas engine which drives the generator, contained in a housing. Recirculating air is drawn in through an inlet, over the electric generator, gas engine and its cooling and exhaust systems where it is heated by waste heat. It is then mixed with controlled amounts of fresh air to regulate the air temperature before being passed into the building air recirculating system. The gas engine can be run at a constant speed which is not dependent on the required temperature of the recirculating air.
The concentration of sulfuric acid exiting a countercurrent SO3 absorber is controlled by controlled addition of water vapor to the S03-containing process gas stream entering the absorber. The novel means of concentration control is useful for control of the acid concentration gradient in an SO3 absorption process and apparatus for high temperature absorption, so as to achieve high temperature absorption heat recovery while minimizing corrosion and formation of acid mist.
5538073 BALANCED DUAL FLOW REGENERATOR HEAT EXCHANGER SYSTEM AND CORE DRIVING SYSTEM
5539258 ELECTRICAL POWER GENERATING ARRANGEMENT HAVING ENGINE THROTTLE AND TRANSMISSION RATIO CONTROL RESPONSIVE TO LOAD POWER DEMAND
Stopa John M Kewadin, MI, UNITED STATES
Sutton Jeffrey A; Tebbutt Iain Solihull, UNITED KINGDOM assigned to British Gas plc
A gas turbine engine includes a gas generator having a compressor, a first turbine member, and a combustor member between the compressor and the first turbine member for increasing the temperature of the fluid medium to be worked upon by the engine. A second turbine is located adjacent to the gas generator and it extracts energy from the fluid medium to produce rotary power. A heat scavenging member is located adjacent to the gas generator for extracting heat from the fluid medium after flowing from said second turbine and for transferring the heat into the fluid medium exiting the compressor by passing the fluid medium at least two times through the scavenging member to heat the fluid medium before flowing into the combustor member.
An electrical power generating arrangement (for example, in a combined heat and power system) in which electric power for supply to mains or grid is output from a generator driven via a continuously variable transmission (C.V.T.) by an internal combustion engine having a throttle. The throttle opening and ratio of the C.V.T. are controlled by a controller comprising a computer programmed with an engine map which is consulted by the computer when there is a change in an external electrical load power demand. For any load, the map indicates at which speed the engine should be run for optimum engine efficiency, the throttle opening is varied to attain that speed, and the controller varies the ratio of the C.V.T. to a value consistent with the desired engine speed.
ParentsALERT
5535944 COMBINED
HEAT AND POWER SYSTEM
5538707 ACID CONCENTRATION CONTROL IN SO3 ABSORPTION
Knowles Joseph Enfield, UNITED KINGDOM assigned to Tilehouse Group PLC
McAlister Donald R St Louis, MO, UNITED STATES assigned to Monsanto Company
PCT No. PCT/GB92/01199 Sec. 371 Date Dec. 29, 1993 Sec. 102(e) Date Dec. 29, 1993 PCT Filed Jul. 2, 1992 PCT Pub. No. WO93/01403 PCT Pub. Date Jan. 2 1, 1993. A combined heat and power (CPH) system for a building has an electrical generator for supply power and a gas engine which drives the generator, contained in a housing. Recirculating air is drawn in through an inlet, over the electric generator, gas engine and its cooling and exhaust systems where it is heated by waste heat. It is then mixed with controlled amounts of fresh air to regulate the air temperature before being passed into the building air recirculating system. The gas engine can be run at a constant speed which is not dependent on the required temperature of the recirculating air.
The concentration of sulfuric acid exiting a countercurrent SO3 absorber is controlled by controlled addition of water vapor to the S03-containing process gas stream entering the absorber. The novel means of concentration control is useful for control of the acid concentration gradient in an SO3 absorption process and apparatus for high temperature absorption, so as to achieve high temperature absorption heat recovery while minimizing corrosion and formation of acid mist.
5538073 BALANCED DUAL FLOW REGENERATOR HEAT EXCHANGER SYSTEM AND CORE DRIVING SYSTEM
5539258 ELECTRICAL POWER GENERATING ARRANGEMENT HAVING ENGINE THROTTLE AND TRANSMISSION RATIO CONTROL RESPONSIVE TO LOAD POWER DEMAND
Stopa John M Kewadin, MI, UNITED STATES
Sutton Jeffrey A; Tebbutt Iain Solihull, UNITED KINGDOM assigned to British Gas plc
A gas turbine engine includes a gas generator having a compressor, a first turbine member, and a combustor member between the compressor and the first turbine member for increasing the temperature of the fluid medium to be worked upon by the engine. A second turbine is located adjacent to the gas generator and it extracts energy from the fluid medium to produce rotary power. A heat scavenging member is located adjacent to the gas generator for extracting heat from the fluid medium after flowing from said second turbine and for transferring the heat into the fluid medium exiting the compressor by passing the fluid medium at least two times through the scavenging member to heat the fluid medium before flowing into the combustor member.
An electrical power generating arrangement (for example, in a combined heat and power system) in which electric power for supply to mains or grid is output from a generator driven via a continuously variable transmission (C.V.T.) by an internal combustion engine having a throttle. The throttle opening and ratio of the C.V.T. are controlled by a controller comprising a computer programmed with an engine map which is consulted by the computer when there is a change in an external electrical load power demand. For any load, the map indicates at which speed the engine should be run for optimum engine efficiency, the throttle opening is varied to attain that speed, and the controller varies the ratio of the C.V.T. to a value consistent with the desired engine speed.