JPH03281938A - Thermoelectric supplying system - Google Patents
Thermoelectric supplying systemInfo
- Publication number
- JPH03281938A JPH03281938A JP2084495A JP8449590A JPH03281938A JP H03281938 A JPH03281938 A JP H03281938A JP 2084495 A JP2084495 A JP 2084495A JP 8449590 A JP8449590 A JP 8449590A JP H03281938 A JPH03281938 A JP H03281938A
- Authority
- JP
- Japan
- Prior art keywords
- engine
- heating
- fuel
- cooling water
- low
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000446 fuel Substances 0.000 claims abstract description 37
- 239000008236 heating water Substances 0.000 claims abstract description 26
- 239000000498 cooling water Substances 0.000 claims abstract description 21
- 238000010438 heat treatment Methods 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 10
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 claims abstract description 7
- 239000003350 kerosene Substances 0.000 claims description 9
- 238000010521 absorption reaction Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 abstract description 8
- 238000010792 warming Methods 0.000 abstract 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 238000000889 atomisation Methods 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 3
- 239000003502 gasoline Substances 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000002283 diesel fuel Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/14—Combined heat and power generation [CHP]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野コ
本発明は、灯油等の低揮発性燃料、分解系軽油等の低セ
タン価燃料およびアルコール燃料を使用する火花点火エ
ンジンを用いて、発電および冷暖房を行う熱電供給シス
テムに関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention provides power generation and It relates to a heat and power supply system for heating and cooling.
［従来の技術］
従来、定置式ディーゼルエンジンを用いて、発電および
冷暖房を行う熱電供給システムは開発されているが、軽
油、灯油、アルコール等の燃料を使用する火花点火エン
ジンを用いて、発電および冷暖房を行う熱電供給システ
ムは開発されていない。これは、軽油、灯油、アルコー
ル等の燃料を使用する火花点火エンジンの始動性が悪い
ことによる。[Prior Art] Conventionally, thermoelectric power supply systems have been developed that use stationary diesel engines to generate electricity and perform cooling and heating. A heat and power supply system for heating and cooling has not been developed. This is due to poor startability of spark ignition engines that use fuels such as diesel oil, kerosene, and alcohol.
一方、内燃機関の始動性を改善するために、ガソリンエ
ンジン等の火花点火エンジンにおいては、気化器式燃料
供給装置を使用する方式ではチョーク弁を設け、また、
燃料噴射弁を使用する方式では、噴射弁を電子制御する
ことにより、始動時における供給燃料の増量を図ってい
る。On the other hand, in order to improve the startability of internal combustion engines, spark ignition engines such as gasoline engines are equipped with choke valves in systems that use carburetor fuel supply devices.
In systems using fuel injection valves, the amount of fuel supplied at startup is increased by electronically controlling the injection valves.
［発明が解決しようとする課題］
これらの対策により、常温時の始動性は確保されるもの
の、低外気温時には始動に時間を要したリ、また、ＨＣ
エミッシＢンが増加する等の問題がある。[Problems to be solved by the invention] Although these measures ensure startability at normal temperatures, they also take a long time to start at low outside temperatures, and also reduce HC.
There are problems such as an increase in emission B.
さらに、ガソリン以外の燃料に対しては、上記従来の方
式によっても常温での始動が困難であり、例えばアルコ
ール、灯油等の例では、始動時にガソリンを使用して始
動性を上げる方法が採られている。Furthermore, it is difficult to start fuels other than gasoline at room temperature even with the conventional method described above. For example, in the case of alcohol, kerosene, etc., a method is adopted to improve starting performance by using gasoline at the time of starting. ing.
この解決策として超音波霧化装置を採用し、供給燃料を
霧化し、燃料の蒸発を促進させ着火の向上を図る試みが
なされている。これによって一般には始動性が改善され
るものの、例えばアルコール燃料、特にメタノール、ま
たは灯油その他の低揮発性、低セタン価燃料においては
、上記問題を完全に解決するまでには至っていない。As a solution to this problem, attempts have been made to employ an ultrasonic atomizer to atomize the supplied fuel, promote evaporation of the fuel, and improve ignition. Although this generally improves startability, it has not yet completely solved the above problem with alcohol fuels, particularly methanol, or kerosene and other low volatility, low cetane number fuels.
本発明の目的は、上記問題を解決するものであって、灯
油等の低揮発性燃料、分解系軽油等の低セタン価燃料お
よびアルコール燃料を使用する火花点火エンジンを用い
て、発電および冷暖房を行う熱電供給システムにおいて
、エンジンの常温始動を可能にすると共に低温始動性を
改善することである。An object of the present invention is to solve the above-mentioned problems, and to perform power generation and heating and cooling using a spark ignition engine that uses low-volatile fuel such as kerosene, low cetane fuel such as cracked light oil, and alcohol fuel. The purpose of this invention is to enable the engine to start at room temperature and improve low-temperature startability in the heat and power supply system.
〔課題を解決するための手段］
そのために本発明の熱電供給システムは、灯油等の低揮
発性燃料、分解系軽油等の低セタン価燃料またはアルコ
ール燃料を微粒化する超音波霧化装置１１を備える火花
点火エンジン１と、該エンジンにより駆動される発電機
２１もしくは圧縮機と、エンジン冷却水と熱交換する冷
却水用熱交換器２２と、エンジン排ガスと熱交換する給
水加熱用熱交換器２３と、該熱交換器２３にて加熱され
た熱源を利用する吸収式冷凍機２４および暖房給湯機２
５と、エンジン始動時にエンジン冷却水を前記暖房給湯
機２５にて加熱可能にする加熱水管２８ａ１２８ｂとを
有することを特徴とする。[Means for Solving the Problems] To this end, the heat and power supply system of the present invention includes an ultrasonic atomizer 11 that atomizes low-volatile fuel such as kerosene, low cetane fuel such as cracked light oil, or alcohol fuel. A spark ignition engine 1, a generator 21 or a compressor driven by the engine, a cooling water heat exchanger 22 that exchanges heat with engine cooling water, and a feed water heating heat exchanger 23 that exchanges heat with engine exhaust gas. , an absorption refrigerator 24 and a heating water heater 2 that utilize the heat source heated by the heat exchanger 23.
5, and a heating water pipe 28a128b that enables the engine cooling water to be heated by the heating water heater 25 when the engine is started.
なお、上記構成に付加した番号は、理解を容易にするた
めに図面と対比させるためのもので、これにより本発明
の構成が何ら限定されるものではない。Note that the numbers added to the above configurations are for comparison with the drawings to facilitate understanding, and the configurations of the present invention are not limited thereby.
［作用コ
本発明においては、エンジン始動時には、開閉弁２７を
閉じると共に開閉弁２８を開くことにより、エンジン冷
却水を加熱水管２６ａ１ 暖房給湯機２５、加熱水間２
６ｂを通るように循環させ、エンジン１を暖房給湯機２
５の湯温により加熱し、始動性を改善するものである。[Function] In the present invention, when starting the engine, the on-off valve 27 is closed and the on-off valve 28 is opened to transfer engine cooling water to the heating water pipe 26a1, the heating water heater 25, and the heating water pipe 2.
6b, and the engine 1 is connected to the heating water heater 2.
It is heated to the water temperature of 5 to improve startability.
［実施例コ 以下、本発明の実施例を図面を参照しつつ説明する。[Example code] Embodiments of the present invention will be described below with reference to the drawings.
第１図は本発明の熱電供給システムの構成図、第２図は
本発明に用いられる火花点火エンジンの断面図である。FIG. 1 is a configuration diagram of a heat and power supply system of the present invention, and FIG. 2 is a sectional view of a spark ignition engine used in the present invention.
第１図において、１は火花点火エンジン、２１は発電機
、２２はエンジン冷却水用熱交換器、２３は給水加熱用
熱交換器、２４は吸収式冷凍機、２５は暖房給湯機であ
る。発電機２１はエンジン１により駆動され発電を行っ
ている。熱交換器２２に供給される水は、エンジン１を
冷却する冷却水管２２ａ１２２ｂを循環する温水と熱交
換して加熱され、さらに、熱交換器２３において排気ガ
ス管２３ａを通る排ガスと熱交換して加熱され、加熱さ
れた温水または蒸気は、吸収式冷凍機２４の冷房用熱源
として利用されると共に、暖房給湯機２５においてさら
に加熱され給湯、暖房に利用される。In FIG. 1, 1 is a spark ignition engine, 21 is a generator, 22 is an engine cooling water heat exchanger, 23 is a feed water heating heat exchanger, 24 is an absorption refrigerator, and 25 is a heating water heater. The generator 21 is driven by the engine 1 and generates electricity. The water supplied to the heat exchanger 22 is heated by exchanging heat with hot water circulating through the cooling water pipe 22a122b that cools the engine 1, and is further heated by exchanging heat with exhaust gas passing through the exhaust gas pipe 23a in the heat exchanger 23. The heated hot water or steam is used as a heat source for cooling the absorption refrigerator 24, and is further heated in the heating water heater 25 and used for hot water supply and space heating.
また、エンジン１を冷却する冷却水管２２ａ１２２ｂに
は、暖房給湯機２５により加熱される加熱水管２６ａ、
２８ｂが並列して接続され、冷却水管２２ｂおよび加熱
水管２８ｂには、それぞれ開閉弁２７．２８が配設され
ている。In addition, the cooling water pipe 22a122b that cools the engine 1 includes a heating water pipe 26a heated by the heating water heater 25,
28b are connected in parallel, and opening/closing valves 27 and 28 are provided in each of the cooling water pipe 22b and the heating water pipe 28b.
前記火花点火エンジン１は、第２図に示すように、シリ
ンダ２、ピストン３、吸気管４、排気管５、吸気弁６、
排気弁７を有し、吸気管４側に燃料供給弁９および超音
波振動部材１０からなる超音波霧化装置１１が取付けら
れている。超音波振動部材１０の一端側には霧化部１２
が形成され、他端側には電気・音響変換素子１３が設け
られている。なお、霧化部１２の形状は、丸型形状、バ
ット型形状等周知の形状が採用される。また、シリンダ
２の上部の燃焼室１５には、ピストン３に対向して点火
装置１６が配設されている。As shown in FIG. 2, the spark ignition engine 1 includes a cylinder 2, a piston 3, an intake pipe 4, an exhaust pipe 5, an intake valve 6,
An ultrasonic atomizer 11 having an exhaust valve 7 and comprising a fuel supply valve 9 and an ultrasonic vibrating member 10 is attached to the intake pipe 4 side. An atomizer 12 is provided at one end of the ultrasonic vibrating member 10.
is formed, and an electric/acoustic conversion element 13 is provided on the other end side. Note that the shape of the atomizing portion 12 may be a well-known shape such as a round shape or a bat shape. Further, an ignition device 16 is disposed in the combustion chamber 15 in the upper part of the cylinder 2 so as to face the piston 3 .
本発明においては、燃料供給弁９から供給される燃料を
超音波振動部材１０の霧化部１２において微細液滴に霧
化し、気化を促進し着火性を向上させるようにしている
が、本発明者が実験を行ったところ、メタノールの低温
始動限界は一部改善されるものの灯油の始動性が困難で
あった。In the present invention, the fuel supplied from the fuel supply valve 9 is atomized into fine droplets in the atomization section 12 of the ultrasonic vibration member 10 to promote vaporization and improve ignitability. When they conducted experiments, they found that although methanol's low-temperature starting limit was partially improved, kerosene's starting performance was difficult.
この原因としては、超音波霧化装置で噴霧の微細化を図
っても、始動時（特に冷間時）には、燃焼室内温度が低
く、またアルコール等の燃料においては気化潜熱が大き
いこと、或は灯油の揮発性が悪いこと等により、燃料の
微細化のみでは始動に至る迄に充分な燃料の気化、蒸発
が行われないことによる。The reason for this is that even if the spray is made finer with an ultrasonic atomizer, the temperature in the combustion chamber is low at startup (especially when it is cold), and the latent heat of vaporization of fuels such as alcohol is large. Alternatively, due to the poor volatility of kerosene, the fuel cannot be vaporized or evaporated sufficiently to start the engine by only making the fuel finer.
そこで、本発明においては、エンジン始動時には、開閉
弁２７を閉じると共に開閉弁２８を開くことにより、エ
ンジン冷却水を加熱水管２６ａ１暖房給湯機２５、加熱
水間２Ｅｉｂを通るように循環させ、エンジン１を暖房
給湯機２５の湯温により加熱し、始動性を改善するもの
である。また、暖気運転終了後は、開閉弁２７を開くと
共に開閉弁２８を閉じることにより、エンジン冷却水を
冷却水管２２ａ１ 熱交換器２２、冷却水間２２ｂを経
て循環させるものである。Therefore, in the present invention, when starting the engine, by closing the on-off valve 27 and opening the on-off valve 28, the engine cooling water is circulated through the heating water pipe 26a1, the heating water heater 25, and the heating water gap 2Eib. is heated by the hot water temperature of the heating water heater 25 to improve startability. Further, after the warm-up operation is completed, by opening the on-off valve 27 and closing the on-off valve 28, the engine cooling water is circulated through the cooling water pipe 22a1, the heat exchanger 22, and the cooling water gap 22b.
なお、本発明は上記実施例に限定されるものではなく種
々の変更が可能である。Note that the present invention is not limited to the above-mentioned embodiments, and various modifications can be made.
例えば、上記実施例においては、エンジン１により発電
機２１を駆動させるようにしているが、冷暖房用の圧縮
機を駆動させるようにしてもよい。For example, in the above embodiment, the generator 21 is driven by the engine 1, but a compressor for heating and cooling may be driven.
また、上記実施例においては、燃料供給弁により燃料を
常時超音波霧化装置に供給するようにしているが、始動
時のみ超音波霧化装置を用い、定常運転時は気化器或は
専用の燃料供給弁により燃料を供給するようにしてもよ
い。In addition, in the above embodiment, fuel is constantly supplied to the ultrasonic atomization device by the fuel supply valve, but the ultrasonic atomization device is used only at startup, and during steady operation, the fuel is supplied to the ultrasonic atomization device. Fuel may be supplied by a fuel supply valve.
［発明の効果］
以上のように本発明によれば、エンジン始動時には、エ
ンジン冷却水を暖房給湯機の湯温により加熱するため、
灯油等の低揮発性燃料、分解系軽油等の低セタン価燃料
およびアルコール燃料を使用する火花点火エンジンを用
いて、発電および冷暖房を行う熱電供給システムにおい
て、エンジンの常温始動を可能にすると共に低温始動性
を改善することができる。むろん冷暖房のみのシステム
の場合にも低温始動性を改善することができる。[Effects of the Invention] As described above, according to the present invention, when the engine is started, the engine cooling water is heated by the hot water temperature of the heating water heater.
In thermoelectric power supply systems that perform power generation, air conditioning, and heating using spark ignition engines that use low-volatile fuels such as kerosene, low cetane fuels such as cracked diesel oil, and alcohol fuels, it is possible to start the engine at room temperature and at low temperatures. Startability can be improved. Of course, low-temperature startability can also be improved in the case of a system with only heating and cooling.
第１図は本発明の熱電供給システムの構成図、第２図は
本発明に用いられる火花点火エンジンの断面図である。
１・・・エンジン、１１・・・超音波霧化装置、２１・
・・発電機、２２・・・冷却水用熱交換器、２３・・・
給水加熱用熱交換器、２４・・・吸収式冷凍機、２５・
・・暖房給湯機、２ Ｅ！ ａｘ ２６ ｂ・・・加
熱水管。FIG. 1 is a configuration diagram of a heat and power supply system of the present invention, and FIG. 2 is a sectional view of a spark ignition engine used in the present invention. DESCRIPTION OF SYMBOLS 1... Engine, 11... Ultrasonic atomization device, 21.
... Generator, 22... Cooling water heat exchanger, 23...
Heat exchanger for heating water supply, 24... Absorption refrigerator, 25.
...Heating water heater, 2 E! ax 26 b...Heating water pipe.
Claims (1)
価燃料またはアルコール燃料を微粒化する超音波霧化装
置を備える火花点火エンジンと、該エンジンにより駆動
される発電機もしくは圧縮機と、エンジン冷却水と熱交
換する冷却水用熱交換器と、エンジン排ガスと熱交換す
る給水加熱用熱交換器と、該熱交換器にて加熱された熱
源を利用する吸収式冷凍機および暖房給湯機と、エンジ
ン始動時にエンジン冷却水を前記暖房給湯機にて加熱可
能にする加熱水管とを有することを特徴とする熱電供給
システム。(1) A spark ignition engine equipped with an ultrasonic atomizer that atomizes low-volatile fuel such as kerosene, low cetane fuel such as cracked light oil, or alcohol fuel, and a generator or compressor driven by the engine. , a cooling water heat exchanger that exchanges heat with engine cooling water, a feedwater heating heat exchanger that exchanges heat with engine exhaust gas, and an absorption refrigerator and heater that utilize the heat source heated by the heat exchanger. A thermoelectric power supply system comprising: a water heater; and a heating water pipe that enables the heating water heater to heat engine cooling water when the engine is started.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2084495A JPH03281938A (en) | 1990-03-30 | 1990-03-30 | Thermoelectric supplying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2084495A JPH03281938A (en) | 1990-03-30 | 1990-03-30 | Thermoelectric supplying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03281938A true JPH03281938A (en) | 1991-12-12 |
Family
ID=13832228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2084495A Pending JPH03281938A (en) | 1990-03-30 | 1990-03-30 | Thermoelectric supplying system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03281938A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8176393B2 (en) | 2006-09-12 | 2012-05-08 | Tamagawa K-12 & University | Encoding device for error correction, encoding method for error correction and encoding program for error correction |
-
1990
- 1990-03-30 JP JP2084495A patent/JPH03281938A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8176393B2 (en) | 2006-09-12 | 2012-05-08 | Tamagawa K-12 & University | Encoding device for error correction, encoding method for error correction and encoding program for error correction |
| US8365052B2 (en) | 2006-09-12 | 2013-01-29 | Tamagawa K-12 & University | Encoding device for error correction, encoding method for error correction and encoding program for error correction |
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