181 |
Waste heat utilization system of small-scale cogeneration |
JP2001114962 |
2001-04-13 |
JP4422360B2 |
2010-02-24 |
央忠 菊沢 |
|
182 |
Cogeneration system |
JP2009010075 |
2009-01-20 |
JP2009168441A |
2009-07-30 |
UEDA TETSUYA; OBARA HIDEO; YUKIMASA AKINORI |
<P>PROBLEM TO BE SOLVED: To maintain water temperature at a stable high level all the time while preventing decline in water temperature by exhaust heat recovery and securing safety. <P>SOLUTION: A cogeneration system includes: an electric power generator 5; a cooling circuit 10 for cooling the electric power generator 5 with a first heating medium; a heat exchanger 16 provided on the cooling circuit 10; an exhaust heat recovery circuit 12 through which a second heating medium exchanging heat with the first heating medium via the heat exchanger 16 flows; a heat storage part 20 connected to the exhaust heat recovery circuit 12 and storing the second heating medium that has undergone heat exchange by the heat exchanger 16; and a control part 21. A first temperature sensor 17 and a heater to which electric power is supplied from the electric power generator 5 are connected in this order on the downstream side of the heat exchanger 16 in a direction in which the second heating medium flows, and the control part 21 controls a flow rate of a circulating pump 13 so that, based on a temperature detected by the first temperature sensor 17, the detected temperature becomes a predetermined target temperature. <P>COPYRIGHT: (C)2009,JPO&INPIT |
183 |
Combined heat and power equipment |
JP32798199 |
1999-11-18 |
JP3849375B2 |
2006-11-22 |
彰成 中村; 伸二 宮内; 義明 山本 |
|
184 |
Cogeneration unit |
JP10629699 |
1999-04-14 |
JP3620701B2 |
2005-02-16 |
吉太郎 大山; 一宏 戸川 |
|
185 |
Cogeneration system |
JP2003183183 |
2003-06-26 |
JP2005016849A |
2005-01-20 |
TAKEUCHI HIROTO |
<P>PROBLEM TO BE SOLVED: To provide a cogeneration system having a less number of site construction processes in construction, requiring a shorter construction period and saving an installation space. <P>SOLUTION: The cogeneration system 1 comprises a cogeneration device 10 for outputting electricity and heat and a heat storage device 20 for storing heat from the cogeneration device 10. The cogeneration device 10 and the heat storage device 20 are arranged side by side into one unit 1 which is installed on a building 70. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
186 |
Fuel cell power generation system |
JP2002020357 |
2002-01-29 |
JP2003223913A |
2003-08-08 |
IZAKI HIROKAZU; HATAYAMA RYUJI; OUKI TAKETOSHI |
PROBLEM TO BE SOLVED: To provide a fuel cell power generation system which can eliminate air bubbles produced in hot water that is used for carrying out circulation for making the fuel cell temperature rise at the time of start.
SOLUTION: The hot water is produced by a heat exchanger 6 using combustion exhaust gas from a PG burner 5. A circulation path 7, through which this water is supplied to the fuel cell 2, and returns from the fuel cell 2 back to the heat exchanger 6, is formed. A pump 14 and a purge valve 8 are provided in this circulation path 7. A water supply way 10 is arranged upstream the heat exchanger 6 in the circulation path 7 through a selector 9, a branch 12 is arranged a downstream the fuel cell 2 through a selector 11, and this branch 12 is connected to a hot water storage tank 13. Unstable reformed gas reformed at the time of start in a fuel reformer 1 is burned by the PG burner 5, and hot water is produced by the heat exchanger 6 with the use of this combustion exhaust gas, which is supplied to the fuel cell 2 to raise its temperature. The air bubbles produced in the circulated hot water are eliminated by the purge valve 8.
COPYRIGHT: (C)2003,JPO |
187 |
Fuel cell power generation system |
JP2001240723 |
2001-08-08 |
JP2003051316A |
2003-02-21 |
OGAWA MASARU; HASHINO KOJI |
PROBLEM TO BE SOLVED: To control hot water for bath for 24 hours by effectively using exhaust heat of a fuel cell.
SOLUTION: This fuel cell power generation system is provided with a fuel cell 1, a heat exchanger 4, a bathtub 3, a circulation passage 33 and a heater 5, heats water flowing inside the circulation passage 33 through the heat exchanger 4 by the exhaust heat of the fuel cell 1 and adjusts the temperature of the water in the bathtub 3 by the heated water. A fuel cell control part 111 controls the operation of the fuel cell 1 so that the temperature of the water in the bathtub 3 is set at a predetermined value. A heater control part 112 operates the heater 5 so as to compensate the heat exchange by the exhaust heat and sets the temperature of the water in the bathtub 3 at the predetermined value. With this structure, the fuel cell system can maintain the water temperature in the bathtub 3 by using the exhaust heat.
COPYRIGHT: (C)2003,JPO |
188 |
Cogeneration system and control method for hot-water storage operation |
JP2001172756 |
2001-06-07 |
JP2002364927A |
2002-12-18 |
HANADA YUKINORI; TAKIMOTO KEIJI |
PROBLEM TO BE SOLVED: To provide a cogeneration system, in which warm water in a volume necessary for filling a bathtub can be stored by a desired time, and energy efficiency can be enhanced. SOLUTION: A controller 7 in the system comprises a time-zone setting means 70, a time-zone determination means 71, a morning time-zone controlling means 74, and a time-zone control means 73 for filling the bathtub with warm water. The means 70 sets a morning time-zone, a night time-zone, and a time- zone for filling the bathtub with warm water as a predetermined time-zone for conducting a hot-water storing operation for preparation of bathtub water filling. The means 71 determines, in which time-zone belongs the present time out of a plurality of time zones set by the means 70. The means 72 controls the morning time-zone, if the means 70 determines the present time as morning time-zone. The means 74 controls the night time-zone, if the means 70 determines the present time as night time zone. The means 73 controls the time-zone for filling the bathtub with warm water, if the means 70 determines the present time as time-zone for filling the bathtub with warm water. |
189 |
Cogeneration system |
JP2001173281 |
2001-06-07 |
JP2002364918A |
2002-12-18 |
TAKAKURA KOJI |
PROBLEM TO BE SOLVED: To provide a cogeneration system, in which efficiency of waste-heat equipment of a gas engine generator, etc., can be raised, and a temperature stratification can be easily formed in a hot-water storage tank. SOLUTION: The cogeneration system comprises a hot-water storage system 1, in which waste heat of the waste-heat equipment such as an engine generator 8, etc., is utilized for hot-water heating. In the hot-water storage system 1, there are provided a hot-water storage tank 101 for storing hot water, a hot-water storage heat-exchanger 124 for heating hot-water by heat-exchanging with the waste heat of the waste heat equipment of the engine generator, etc., a circulating pump 102 which sucks hot-water heated by the hot-water storage heat-exchanger, and delivering it to the tank so that a temperature stratification is formed, a water-volume control valve 107 for controlling the water-flow volume in the heat exchanger 124, and a bypass 126 for the hot-water storage tank. |
190 |
Fuel cell waste heat recovery system |
JP2001087971 |
2001-03-26 |
JP2002289213A |
2002-10-04 |
AZUMAGUCHI SEISAKU; TABATA TAKESHI; KASHIWABARA YOSHITAKA; IWATA SHIN |
PROBLEM TO BE SOLVED: To efficiently recover the waste heat of a fuel cell and to enhance the efficiency thereof to thereby improve recovery efficiency of the waste heat as a whole. SOLUTION: A waste heat recovery means 6 for recovering waste heat from the fuel cell 1 is mounted to a circulation pipe 5 connected to a hot-water storage tank 4. A heating device 8 is connected to the recovery means 6 through a heating circulation pipe 7. The recovery means 6 is composed of a sensible heat recovery heat exchange part 9 for recovering sensible heat of an exhaust gas containing steam from a reformer 2, a cooling water waste heat recovery heat exchange part 10 for recovering waste heat of cooling water after cooling a fuel cell body 3, and a latent heat recovery heat exchange part 11 for recovering latent heat in conjunction with condensation of steam after the sensible heat is recovered by the heat exchange part 9. The waste heat is recovered by transferring the heat to water flowing through the circulation pipe 5 in the order of the heat exchange part 11, the heat exchange part 10 and the heat exchange part 9 and by transferring the heat to the circulation pipe 7 in the order of the heat exchange part 10 and the heat exchange part 9. |
191 |
Fuel cell cogeneration system |
JP2001066334 |
2001-03-09 |
JP2002270194A |
2002-09-20 |
NAKAYAMA TATSUO; UEDA TETSUYA; MIYAUCHI SHINJI |
PROBLEM TO BE SOLVED: To restrict the breeding of a microbe and algae such as a bacteria intruding from outside, and to prevent the blockade inside of a flow passage due to them in a fuel cell cogeneration system by temporarily raising water temperature to the predetermined temperature, for example 70°C, or more necessary to heat for sterilization without providing a heating means dedicated for sterilization.
SOLUTION: This fuel cell cogeneration system is provided with a fuel cell, a cooling water circulating flow passage, a reformer for generating the fuel to be supplied to the fuel cell from a raw material, a water storage tank for storing the water to be supplied to at least one of the cooling water circulating flow passage and the reformer, and a heating flow passage formed for return from the water storage tank through a part to be heated to the predetermined temperature or more.
COPYRIGHT: (C)2002,JPO |
192 |
Fuel cell cogeneration system |
JP2000327228 |
2000-10-26 |
JP2002134143A |
2002-05-10 |
NAKAMURA AKINARI; YAMAMOTO YOSHIAKI; UEDA TETSUYA; MIYAUCHI SHINJI; OZEKI MASATAKA |
PROBLEM TO BE SOLVED: To provide a fuel cell cogeneration system, capable of stably supplying hot water at a high temperature in a short time and readily coping with fluctuation in the thermal output of the fuel cell. SOLUTION: This fuel cell cogeneration system is equipped with a fuel gas generation part 1 for generating hydrogen rich fuel gas by steam reforming, a fuel cell 2 for generation electricity with the use of the fuel gas and oxidizer gas, a fuel gas humidifier 3 and an oxidizer gas humidifier 4 for humidifying the fuel gas and the oxidizer gas, an inverter 5 for inverting direct current electricity to alternating current electricity, a cooling water circulating pump 6, a cooling water circulating passage 7 and a passage interchanging valve 9 for circulating the cooling water, a heat exchanger 21 for cooling the cooling water by heat exchange with stored hot water, a stored hot water circulating passage 22 for circulating the stored hot water, a storage hot water tank 8 for storing the stored hot water, and a radiator 11 for cooling the cooling water by heat radiation. The stored hot water is returned to the storage hot water tank 8 through a stored hot water circulating passage exhaust port 23 provided in the middle part of the storage hot water tank 8. |
193 |
Hot water storage/hot water supply system |
JP2000022294 |
2000-01-31 |
JP2001210343A |
2001-08-03 |
TAJIMA OSAMU; FUJIO AKIRA |
PROBLEM TO BE SOLVED: To provide an exhaust heat recovery system of a solid polymer type fuel cell which can decrease a tank capacity to store hot water and supply the hot water all the time.
SOLUTION: The constitution of an exhaust heat recovery system collecting the waste-heat when a solid polymer type fuel cell 6 is used to generate power has the first hot water storage part 112A and the second hot water storage part 112B. At the first hot water storage part 112A, the waste-water is collected by the power generation of the day and the hot water is stored, and the temperature of the stored hot water is raised by the midnight power which uses commercial power supply, and hot water is supplied in the daytime of the next day. At the second hot water storage part 112B, when the hot water of the first hot water storage part 112A is supplied, the waste-heat by the power generation is recovered and the hot water is stored, and the midnight power using commercial power supply raises the temperature of the stored hot water, and the hot water is supplied in the daytime of the next day.
COPYRIGHT: (C)2001,JPO |
194 |
Exhaust heat recovery system of solid polymer type fuel cell |
JP2000014719 |
2000-01-24 |
JP2001210340A |
2001-08-03 |
TAJIMA OSAMU; TAJIMA KAZUHIRO; SHINDO KOJI; YAMAMOTO SATOSHI; ODA KATSUYA |
PROBLEM TO BE SOLVED: To provide an exhaust heat recovery system of a solid polymer type fuel cell which can decrease a tank capacity to store hot water and supply the hot water all the time.
SOLUTION: The constitution of an exhaust heat recovery system collecting the waste-heat when a solid polymer type fuel cell 6 is used to generate power has the first hot water storage part 112A and the second hot water storage part 112B. At the first hot water storage part 112A, the waste-water is collected by the power generation of the day and the hot water is stored, and the temperature of the stored hot water is raised by the midnight power which uses commercial power supply, and hot water is supplied in the daytime of the next day. At the second hot water storage part 112B, when the hot water of the first hot water storage part 112A is supplied, the waste-heat by the power generation is recovered and the hot water is stored, and the midnight power using commercial power supply raises the temperature of the stored hot water, and the hot water is supplied in the daytime of the next day.
COPYRIGHT: (C)2001,JPO |
195 |
Heat and power supply unit |
JP32798199 |
1999-11-18 |
JP2001143737A |
2001-05-25 |
MIYAUCHI SHINJI; NAKAMURA AKINARI; YAMAMOTO YOSHIAKI |
PROBLEM TO BE SOLVED: To provide a head and power supply unit that efficiently utilizes heat in electric power generator, not radiating the heat in a fuel cell to the outside with a cooling fan for.
SOLUTION: It can shorten the length of the inner circulation circuit by involving a polymer electrolyte fuel cell 1, an inner circulation circuit and a first heat exchanger 14 into a fuel cell body unit 19 and also can reduce heat loss in a waste heat recovery pipe 17a, 17b and enhance a waste heat recovery efficiency by arranging a heat utilizing means 18 utilizing heat through an outside heat transportation medium heat exchanged by a first heat exchange means 14 and the waste heat recovery pipes 17a, 17b. Because of reducing a total amount of an internal heat transportation medium, it can economize by constituting the internal heat transportation medium into antifreeze liquid and the external heat transportation medium within the waste heat recovery pipes into water, etc.
COPYRIGHT: (C)2001,JPO |
196 |
Fuel cell power generating system |
JP23768099 |
1999-08-25 |
JP2001068125A |
2001-03-16 |
OKAMOTO YASUNARI; MATSUI NOBUKI; IKEGAMI SHUJI |
PROBLEM TO BE SOLVED: To prevent reverse power follow to commercial power line when consumption power is smaller than the generated power and to suppress increase in facility cost by installing an electric heater to which the generated power is supplied in a hot water tank to which waste heat is supplied.
SOLUTION: A fuel cell main body 15 generates power by bonding hydrogen supplied from a CO gas removing device 14 with oxygen in compressed air supplied from an air compressor 16, and converting ions produced into charges of an anode and a cathode. The generated power is converted into AC 100 V through a DC/DC converter 3 and an inverter 4, and supplied to a house through a line breaker 5 and consumed there. Water in a storage tank 2 is heated by waste heat of a fuel cell 1 with a heating part 18a during circulation within heating pipe 18. When the consumption power in the house exceeds the generated power, power shortage is supplemented with commercial power, and when it is opposite, reverse power flow is prevented with the line breaker 5, excess power is supplied to an electric heater 21 for the storage tank 2 to heat water or hot water.
COPYRIGHT: (C)2001,JPO |
197 |
Cogeneration system |
JP10629699 |
1999-04-14 |
JP2000297700A |
2000-10-24 |
TOGAWA KAZUHIRO; OYAMA YOSHITARO |
PROBLEM TO BE SOLVED: To provide a cogeneration system that can comply properly with a plurality of independent heat demands. SOLUTION: A hot water storage tank 17 for storing first hot water generated, utilizing exhaust heat from an engine generator 10, is provided. Inside the hot water storage tank 17, a first heat exchanger 20 for generating the first hot water and a second heat exchanger 22 for generating a second hot water by extracting heat from the first hot water are disposed. Between the first heat exchanger 20 and the second heat exchanger 22, a temperature sensor TS1 is disposed. Above the second heat exchanger, a second temperature sensor TS2 is disposed. A controller 29 operates the engine generator 10 based on heat loads 21, 24 which are determined based on temperatures of the hot water detected by the temperature sensors TS1, TS2. Furthermore, a reheat boiler 25 for heating the second hot water to be fed to the heat load 24 is provided. |
198 |
Method for simultaneously forming electrical energy and heat for heating, and plant for carrying out the method |
JP13974597 |
1997-05-29 |
JPH1064568A |
1998-03-06 |
LENEL DANIEL |
PROBLEM TO BE SOLVED: To provide a method for simultaneously forming electrical energy and heat for heating and including the use of a fuel cell for forming large quantities of heat for heating of room in particularly winter and a gas burner and for carrying out simultaneous formation of electricity using the fuel cell on maximized power level and to provide a plant for carrying out the method. SOLUTION: Electrical energy and heat are simultaneously formed from a combustion gas G consisting mainly of at least one hydrocarbon and an oxygen-containing gas mixture A. The quantity less than half the combustion gas G is converted in a battery C having a fuel cell to form electricity and to form a first exhaust gas. The remained quantity is burned in a burner B to form a second exhaust gas. The first exhaust gas is at least partially used as an oxygen source for combustion. Thus, heat energy is recovered from a plurality of exhaust gases. In addition, at least about half quantity of water contained in the exhaust gases is condensed. |
199 |
Apparatus having passage for water solution and operation ofboiler for using feed water to generate water solution |
JP13725486 |
1986-06-11 |
JPS61290664A |
1986-12-20 |
ARUBAATO PII GURATSUSO; BUORUFUGANGU EMU BUOOGERU |
|
200 |
METHOD FOR OPERATING A COGENERATION PLANT |
PCT/EP2011050502 |
2011-01-17 |
WO2011089082A3 |
2013-05-30 |
FRIEDE WOLFGANG; LIMBECK UWE |
The invention relates to a method for operating a cogeneration plant (10), wherein a first portion of a first fuel is electrochemically converted in at least one fuel cell (21) of a fuel cell system (20) of the cogeneration plant (10), whereby electrical power and heat are generated, wherein a second portion of the first fuel, exiting the fuel cell (21) without converting, is burned in an afterburner (24) of the fuel cell system (20) after exiting the fuel cell (21), and heat is thereby generated, wherein a second fuel can be burned in a heat generator (30) of the cogeneration plant (10) and heat can thereby be generated, wherein an optimal first portion of the first fuel can be converted at an optimal operating point of the fuel cell (21). According to the invention, when a demand for heat is greater than can be generated in the fuel cell system (20) at the optimal operating point of the fuel cell (21), the first portion of the first fuel is reduced relative to the optimal operating point, so that more heat is generated in the afterburner (24) than at the optimal operating point. |