JPS6179942A - Method and device for geothermal electric power generation - Google Patents
Method and device for geothermal electric power generationInfo
- Publication number
- JPS6179942A JPS6179942A JP59200961A JP20096184A JPS6179942A JP S6179942 A JPS6179942 A JP S6179942A JP 59200961 A JP59200961 A JP 59200961A JP 20096184 A JP20096184 A JP 20096184A JP S6179942 A JPS6179942 A JP S6179942A
- Authority
- JP
- Japan
- Prior art keywords
- heat
- power generation
- underground
- geothermal
- energy
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
- F24T10/00—Geothermal collectors
- F24T10/20—Geothermal collectors using underground water as working fluid; using working fluid injected directly into the ground, e.g. using injection wells and recovery wells
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
- F24T10/00—Geothermal collectors
- F24T10/30—Geothermal collectors using underground reservoirs for accumulating working fluids or intermediate fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
- F24T10/00—Geothermal collectors
- F24T10/40—Geothermal collectors operated without external energy sources, e.g. using thermosiphonic circulation or heat pipes
-
- 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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、地中の熱エネルギを地上へ取り出しこれを
心気エネルギに変換する地熱発電方法Ｓよび装置に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a geothermal power generation method S and apparatus for extracting thermal energy from underground to the ground and converting it into aerobic energy.
従来の地熱発電手段としては、地中の高温蒸気および熱
水を直接利用する地熱発電手段と、地中の乾燥高温岩体
に水を注入しこれによって高温になった蒸気Ｓ工び熱水
を利用する地熱発電手段とがある。Conventional geothermal power generation methods include geothermal power generation methods that directly utilize high-temperature steam and hot water underground, and geothermal power generation methods that use hot water directly by injecting water into dry, high-temperature rock underground. There are geothermal power generation methods that can be used.
前者は、地中σ〕マグマ等により加熱された高温蒸気Ｓ
よび熱水を含む層に対して井戸を翔り、この層から地上
へ噴出してくる高温蒸気および熱水の熱エネルギを電気
エネルギに変換して発電″ｆるもので、主に温泉地帯で
実用比されている。The former is high-temperature steam S heated by underground σ] magma, etc.
This is a method that generates electricity by running a well into a layer containing hot springs and hot water, and converting the thermal energy of high-temperature steam and hot water that gushes out from this layer to the ground into electrical energy, and is mainly used in hot spring areas. Practical comparison has been made.
後者は、第２図に示しにもので、これについて説明する
と、まず、水は含んでいないが高温に加熱されている地
中の就床高温岩体【に対して注入井２および生産井３を
掘削し、注入井２の先４部から生産井３の先端部にかげ
て、***によって、乾深高は老体【に亀裂を生じさせる
。そして、ポンプ４によって配管５を通して注入井２に
水化圧送すると、水は注入井２の先端から乾燥高温岩体
【に形成された亀裂を通り、ここで高温に加島され、生
産井３を通って地上へ回収される。この回収された熱水
および高温蒸気？発電プラント６に送り、ここで熱エネ
ルギな取り出し１発電に行ない、この水を再び配管５を
通してポンプ４に送る。The latter is shown in Figure 2, and to explain it, first, injection well 2 and production well 3 are is drilled and blasted from the tip of the injection well 2 to the tip of the production well 3, causing cracks in the old body. Then, when the water is pumped to the injection well 2 through the pipe 5 by the pump 4, the water passes from the tip of the injection well 2 through cracks formed in the dry high-temperature rock, where it is heated to a high temperature, and passes through the production well 3. and recovered to the ground. This recovered hot water and high temperature steam? The water is sent to a power generation plant 6, where thermal energy is extracted and used for power generation, and this water is sent to the pump 4 through the pipe 5 again.
このようにして地下の乾燥高温岩体ｌの熱エネルギを地
上に収り出すことができ、発’ｊｔＫ使用することがで
きる。In this way, the thermal energy of the dry, high-temperature rock bodies underground can be brought to the surface and used as energy.
これらの従来の地熱発電手段は、前者にあっては、高温
蒸気Ｓよび熱水が多量に安定的に供給されることが必要
であり、シフｅがって建設適地が限定されるという問題
点があった。！！た。地中から取り出した高温蒸気Ｈシ
び熱水はヒ素や亜１ｍ酸等のＭ害ｖｌＪ質を含んでいる
ため、この廃水を処理する必要がある。その手段として
、この廃水を強制のに地中再注入する遣水システムを設
ける場合があるが、この手段は廃水？再注水する井戸を
別に必要とし、廃水を圧入する２めのポンプ等の動力設
備を必要とするため建設コストが高くなるという問題点
があった。These conventional geothermal power generation means have the problem that the former requires a stable supply of large amounts of high-temperature steam and hot water, which limits the suitable construction sites. was there. ! ! Ta. The high-temperature steam hot water taken out from underground contains harmful substances such as arsenic and 1m2 acid, so it is necessary to treat this wastewater. One way to do this is to install a water supply system that forces this wastewater to be reinjected into the ground, but is this method suitable for wastewater? There was a problem in that construction costs were high because a separate well was required to re-inject water, and power equipment such as a second pump was required to pressurize the wastewater.
一方、後者にあっては、注入井２の先端部と生産井３の
先端部との間に***によってうまく亀裂を形成させるこ
とが難しいという問題点があり、ま７Ｓ：、水を地下へ
注入し循環するために必要なポンプ等の設備が必要であ
り、このため膜製が大聖化しコスト高になるという問題
点があった。On the other hand, in the latter case, there is a problem that it is difficult to properly form a crack between the tip of the injection well 2 and the tip of the production well 3 by blasting. This requires equipment such as pumps for circulation, which leads to the problem that membranes are preferred and costs are high.
この発明は、上記の問題点を解決するための手段として
、第１の発明では、ヒートサイホンの−ｍＹ地中の地熱
貯留層に挿入し、他端から熱エネルギを取り出し、この
熱エネルギＹｔｆｉエネルギに変換するものであり、第
２の発明では、一端を地中の地熱貯留層に挿入したヒー
トサイホン？設け、このヒートサイホンの他端から熱エ
ネルギを収り出し発電機を作動させる蒸気サイクルを＆
Ｊけ、この蒸気サイクルにエリ駆動される発Ｉｔ機を設
けた構成である。In the first invention, as a means for solving the above problems, the heat syphon is inserted into a -mY underground geothermal reservoir, heat energy is taken out from the other end, and this heat energy Ytfi energy is In the second invention, a heat syphon with one end inserted into an underground geothermal reservoir is used. A steam cycle is established to extract heat energy from the other end of this heat siphon and operate a generator.
This steam cycle is equipped with an electrically driven generator.
第１図は、この発明の一実施例を示す図である。 FIG. 1 is a diagram showing an embodiment of the present invention.
コ（’）図に′ｊ６いて、符号１１は地熱発電装置を示
し、地熱発電装［１１は地熱取り出し装置１２−と蒸気
サイクル【３と発電機１４とｎ）ら構成され、地熱取り
出し装置【２はヒートサイホン１５と吸熱フィン１６と
放熱フィン１７と断熱部材１８とから構成されている。In the figure, 11 indicates a geothermal power generation device, and the geothermal power generation device [11 is composed of a geothermal extraction device 12-, a steam cycle [3, a generator 14, and n], and a geothermal power generation device 2 is composed of a heat siphon 15, heat absorption fins 16, heat radiation fins 17, and a heat insulating member 18.
ヒートサイホン１５は１両端部が密閉されたパイプ状の
外殻Ｌ９と、この外殻【９の内部に密封された伝熱流体
（図示せず〕とから構成されている。ヒートティホン１
５の下端部Ｌ５ａ（一端）の外周面には吸熱フィン１６
が連設され、ヒートサイホン１５り上端部Ｌ５ｂ（他端
〕の外周面には放熱フィン１７が連設され、ヒートサイ
ホン１５の中間部ｔＳＣの外周面には中空円筒状のｌｌ
！ｆ？熱部材Ｌ８が嵌合して装置されている。一方、岩
ｍＡには、地表から地中の熱水ＪＩＢ（地熱貯留層］に
至るほぼ垂直の掘削坑Ｃが形成されている。ヒートサイ
ホン【５は、その下端部ｔＳａを熱水層Ｂ中に位置させ
、その中間部ｔｓｃａ’堀削坑Ｃ掘削位置させて配設さ
れている。The heat siphon 15 is composed of a pipe-shaped outer shell L9 with both ends sealed, and a heat transfer fluid (not shown) sealed inside the outer shell L9.
5, there are heat absorbing fins 16 on the outer peripheral surface of the lower end L5a (one end).
A heat dissipation fin 17 is continuously provided on the outer circumferential surface of the upper end L5b (the other end) of the heat siphon 15, and a hollow cylindrical fin is provided on the outer circumferential surface of the intermediate portion tSC of the heat siphon 15.
! f? A thermal member L8 is fitted and installed. On the other hand, in rock mA, an almost vertical excavation hole C has been formed that extends from the ground surface to underground hydrothermal water JIB (geothermal reservoir). It is located at the middle part of the excavation hole C.
蒸気サイクルＬ３は、熱交換器２０と、タービン２Ｌと
復水器２２とポンプ２３とからなり、この順に作動流体
が循環し蒸気サイクルＬ３を構成している。熱交換器２
０の内部には、前記ヒートサイホン１５の上端部Ｌ５ｂ
お工び放熱フィンＥ７が配設されている。タービン２Ｌ
の出力軸には発を機１４の入力軸が連結されている。The steam cycle L3 includes a heat exchanger 20, a turbine 2L, a condenser 22, and a pump 23, and working fluid circulates in this order to form the steam cycle L3. heat exchanger 2
0 has an upper end L5b of the heat siphon 15.
A built-in heat dissipation fin E7 is provided. Turbine 2L
The input shaft of the starter 14 is connected to the output shaft of the starter.
このような構成の地熱発′ｕＬ装（ｔＬｔり作用化説明
すると、高温の熱水ｊ−Ｂσ〕熱は、ヒートサイホン【
５の下端部１５ａｉｃｇいて、吸熱フィンＬ６お裏び外
殻【９を通して伝熱媒体に伝えられる。Geothermal heat generation equipment with such a configuration (to explain, high-temperature hot water j-Bσ) heat is generated by a heat siphon [
The heat is transmitted to the heat transfer medium through the lower end 15aicg of the heat absorbing fin L6 and the outer shell [9].
この熱によって伝熱媒体は沸騰し、その蒸気はヒートサ
イホン１５内を上昇し、上端部１５ｆｉに到達する。こ
こにおいて、伝熱媒体の蒸気はその熱を放熱フィン１７
お工び外殻１９化通して熱交換器２０内の蒸気サイクル
１３の作動流体に伝える。This heat causes the heat transfer medium to boil, and its vapor rises within the heat siphon 15 and reaches the upper end 15fi. Here, the steam of the heat transfer medium transfers its heat to the radiation fins 17.
The working fluid of the steam cycle 13 in the heat exchanger 20 is transmitted through the fabricated shell 19 .
そし【、伝熱媒体自体は冷瀬されて液ｆヒし、ヒートサ
イホン【５の外殻Ｌ９の内壁を伝って下降しヒートサイ
ホン【５の下端部ｔＳａに至り、ここで再び加熱され沸
騰する。このような作用をくり返すことにより、熱水層
Ｂの熱を蒸気サイクル１３の熱交換器２０に伝える。ヱ
た、ヒートティホン［５の中間部Ｌ５Ｃには断熱部材１
８が外側に装着されているため、中間部１５Ｃでの熱損
失を少な（することができる。Then, the heat transfer medium itself is cooled and becomes liquid, and it descends along the inner wall of the outer shell L9 of the heat siphon [5] and reaches the lower end tSa of the heat siphon [5, where it is heated again and boils. . By repeating such actions, the heat of the hydrothermal layer B is transferred to the heat exchanger 20 of the steam cycle 13. Insulation member 1 is installed in the middle part L5C of Heat Typhon [5]
8 is mounted on the outside, heat loss at the intermediate portion 15C can be reduced.
蒸気サイクル１３の作動流体は、熱交換器２０において
、ヒートサイホン菖５の放熱フィン１７および外殻Ｌ９
’ａ’通して熱？受けることにより。The working fluid of the steam cycle 13 is supplied to the heat exchanger 20 through the heat radiating fins 17 of the heat syphon 5 and the outer shell L9.
Heat through 'a'? By receiving.
過熱蒸気となってタービン２１に送られる。この過熱蒸
気となった作動流体はタービン２Ｉで断熱膨張し熱エネ
ルギを機械エネルギに変換し、タービンの出力＠ ’ｔ
ｒＯＪ伝させる。これに工ってタービンの出力軸に運
、結され２発電機［４が作動し１機械エネルギが電気エ
ネルギに変換され、発電が行なわれる。タービン２１で
断熱膨張しに作動流体は、復水器２２に送られ、ここで
冷却され液化し、再びポンプ２３によって熱交換器２０
に送られ６０このようなサイクルをくり返すことに工り
熱交換器２０に伝えられ２熱エネルギはタービン２【で
機械エネルギに変換され、さらに発電機【４で電気エネ
ルギに変換され１発電が行なわれる。It becomes superheated steam and is sent to the turbine 21. This working fluid, which has become superheated steam, expands adiabatically in the turbine 2I, converts thermal energy into mechanical energy, and outputs the turbine @'t
I'll let rOJ know. In this way, two generators [4] connected to the output shaft of the turbine are activated, converting mechanical energy into electrical energy and generating electricity. The working fluid that has been adiabatically expanded in the turbine 21 is sent to the condenser 22, where it is cooled and liquefied, and then transferred again to the heat exchanger 20 by the pump 23.
By repeating this cycle, the heat energy is transferred to the heat exchanger 20, where it is converted into mechanical energy by the turbine 2, and then converted into electrical energy by the generator 4, generating 1 power. It is done.
尚、この実施例では、地□下の熱水層Ｂを熱源としてい
るが、地下の熱源は熱水層Ｂに限る必賛はな（、高温蒸
気の層でもよく、またこれ以外でもヒートサイホン１５
の下ｇｓｆｌ１１５ａの周囲が高温であり、熱を採喉で
きる状態であれば、熱水や蒸気がなくてもよい。In this example, the heat source is the hydrothermal layer B underground, but the underground heat source is not limited to the hydrothermal layer B (a layer of high-temperature steam may also be used, and heat syphons may also be used) 15
As long as the surroundings of the lower gsfl 115a are at a high temperature and can collect heat, there is no need for hot water or steam.
この発明によれば、ヒートサイホンの−ｇｔａを地中の
地熱貯留１−へ挿入し、他端から熱エネルギを取り出し
、この熱エネルギ’ｒｌ！気エネルギに変換するように
したから、地下の地熱貯留層は熱水や高温蒸気の層に限
る必要はなく、高温状態でありささえすればよ＜、シた
がって１発を設備の建設適地を広範凹に選ぶことができ
、建設リスクを低減でざるという効果を奏する。また、
このことから、従来の地熱発電設備とり葦用がＯＴ罷で
１発電設層の熱回収効率を高めるのに役に立つ。また、
地中から有害物質を含んだ熱水や蒸気を嘔り出さないた
め、使用後の廃水を地中にもどす遣水システムを必要と
せず、したがって設備規模を小さくすることができ、建
設コストｆＫ：低減でさるという幼果を奏する。ざらに
、地中の掘削工事としては、地中の地熱貯留層に対して
掘削坑を設けるだけでよ（、難工事を必要とせず、技術
的に容易であり。According to this invention, the -gta of the heat siphon is inserted into the underground geothermal storage 1-, thermal energy is taken out from the other end, and this thermal energy 'rl! Since the underground geothermal reservoir does not have to be limited to a layer of hot water or high-temperature steam, it only needs to be in a high temperature state and supported. It can be selected to have a wide concave shape, which has the effect of reducing construction risks. Also,
From this, conventional geothermal power generation facility reeds are useful for increasing the heat recovery efficiency of one power generation facility layer by OT stripping. Also,
Since hot water and steam containing harmful substances are not discharged from underground, there is no need for a water distribution system that returns used wastewater underground, and the scale of equipment can therefore be reduced, reducing construction costs fK: It plays a young fruit called Desaru. In general, underground excavation work simply requires drilling a hole into an underground geothermal reservoir (it does not require any difficult construction work and is technically easy).
また地中に水を注入したり、地中ｎ）ら熱水？（み上げ
る必要がないため、そのための動刃設備が不要であると
いう効果を奏する。１ｚ、ヒートサイホン自体は、掘削
坑に苅して挿抜がでさるため、他の掘削坑での再使用が
でき、したがって経済的であるという効果も萎する。Also, injecting water into the ground, or hot water from underground? (Since there is no need to lift it up, there is no need for moving blade equipment. 1z. The heat siphon itself can be inserted and removed by plowing it into the excavation pit, so it can be reused in other excavation pits. Therefore, the economical effect is also diminished.
第１図は不発明の一実施例であるヒートサイホンを利用
した地熱発電装置を示す図であり、第２図は従来の地熱
発電装置を示す図である。
Ｂ・・・熱水層（地熱貯留層）、ｋｌ・・・地熱発４装
置。
【３・・・蒸気ブイタル、１４・・・発電機、１５・・
・ヒートサイホン、Ｌ５ａ・・・下ｇｆａ部（一端）、
１、５ ｂ・・・上端部（他端）。FIG. 1 is a diagram showing a geothermal power generation device using a heat siphon, which is an embodiment of the invention, and FIG. 2 is a diagram showing a conventional geothermal power generation device. B... Hydrothermal layer (geothermal reservoir), kl... 4 geothermal power generation devices. [3... Steam generator, 14... Generator, 15...
・Heat siphon, L5a...lower gfa part (one end),
1, 5 b... Upper end (other end).
Claims (2)
て発電するに際し、ヒートサイホンの一端を地中の地熱
貯留層に挿入し、他端から熱エネルギを取り出し、この
熱エネルギを電気エネルギに交換することを特徴とする
地熱発電方法。(1) When extracting thermal energy from underground to the surface and using it to generate electricity, one end of the heat syphon is inserted into a geothermal reservoir underground, thermal energy is extracted from the other end, and this thermal energy is converted into electrical energy. A geothermal power generation method characterized by replacing.
て発電する地熱発電装置において、一端を地中の地熱貯
留層に挿入したヒートサイホンと、このヒートサイホン
の他端から熱エネルギを取り出し発電機を作動させる蒸
気サイクルと、この蒸気サイクルにより駆動される発電
機とを具備してなる地熱発電装置。(2) In a geothermal power generation device that extracts thermal energy from underground and uses it to generate electricity, a heat siphon is inserted into a geothermal reservoir underground at one end, and thermal energy is extracted from the other end of this heat siphon. A geothermal power generation device comprising a steam cycle that operates a generator, and a generator driven by this steam cycle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59200961A JPS6179942A (en) | 1984-09-26 | 1984-09-26 | Method and device for geothermal electric power generation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59200961A JPS6179942A (en) | 1984-09-26 | 1984-09-26 | Method and device for geothermal electric power generation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6179942A true JPS6179942A (en) | 1986-04-23 |
Family
ID=16433186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59200961A Pending JPS6179942A (en) | 1984-09-26 | 1984-09-26 | Method and device for geothermal electric power generation |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6179942A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01259767A (en) * | 1988-04-06 | 1989-10-17 | Fujikura Ltd | Geothermal power generation device |
| US5143150A (en) * | 1992-02-10 | 1992-09-01 | Johnston James M | Geothermal heat converter |
| WO2002035091A2 (en) * | 2000-10-20 | 2002-05-02 | Orra Corporation | Method and apparatus for converting natural heat energy into another form of energy |
| KR20030096468A (en) * | 2002-06-12 | 2003-12-31 | 이수현 | Heating and air-conditioning device by subterranean heat |
| JP2007154863A (en) * | 2005-12-07 | 2007-06-21 | Yoshiro Sato | Earth hot water power generator |
| JP2011524484A (en) * | 2008-06-13 | 2011-09-01 | ジェイ． パレラ，マイケル | System and method for acquiring geothermal heat for generating electricity from a drilled well |
| KR101078647B1 (en) | 2009-09-30 | 2011-11-01 | 삼성중공업 주식회사 | Electronic power plant using hot water gushing out of seabed |
| CZ303076B6 (en) * | 2007-08-24 | 2012-03-21 | Fite, A. S. | Device for utilization of mine excavations for production of peak electric power by pumped-storage systems |
| US8534069B2 (en) | 2008-08-05 | 2013-09-17 | Michael J. Parrella | Control system to manage and optimize a geothermal electric generation system from one or more wells that individually produce heat |
| JP2016070516A (en) * | 2014-09-26 | 2016-05-09 | 鹿島建設株式会社 | Magma power generation system, and method of manufacturing magma power generation system |
| US9423158B2 (en) | 2008-08-05 | 2016-08-23 | Michael J. Parrella | System and method of maximizing heat transfer at the bottom of a well using heat conductive components and a predictive model |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56127143A (en) * | 1980-03-10 | 1981-10-05 | Kawasaki Heavy Ind Ltd | Heat pipe type subterranean heat pickup apparatus |
-
1984
- 1984-09-26 JP JP59200961A patent/JPS6179942A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56127143A (en) * | 1980-03-10 | 1981-10-05 | Kawasaki Heavy Ind Ltd | Heat pipe type subterranean heat pickup apparatus |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01259767A (en) * | 1988-04-06 | 1989-10-17 | Fujikura Ltd | Geothermal power generation device |
| US5143150A (en) * | 1992-02-10 | 1992-09-01 | Johnston James M | Geothermal heat converter |
| WO2002035091A2 (en) * | 2000-10-20 | 2002-05-02 | Orra Corporation | Method and apparatus for converting natural heat energy into another form of energy |
| WO2002035091A3 (en) * | 2000-10-20 | 2003-09-25 | Orra Corp | Method and apparatus for converting natural heat energy into another form of energy |
| KR20030096468A (en) * | 2002-06-12 | 2003-12-31 | 이수현 | Heating and air-conditioning device by subterranean heat |
| JP2007154863A (en) * | 2005-12-07 | 2007-06-21 | Yoshiro Sato | Earth hot water power generator |
| CZ303076B6 (en) * | 2007-08-24 | 2012-03-21 | Fite, A. S. | Device for utilization of mine excavations for production of peak electric power by pumped-storage systems |
| JP2011524484A (en) * | 2008-06-13 | 2011-09-01 | ジェイ． パレラ，マイケル | System and method for acquiring geothermal heat for generating electricity from a drilled well |
| US8616000B2 (en) | 2008-06-13 | 2013-12-31 | Michael J. Parrella | System and method of capturing geothermal heat from within a drilled well to generate electricity |
| US9404480B2 (en) | 2008-06-13 | 2016-08-02 | Pardev, Llc | System and method of capturing geothermal heat from within a drilled well to generate electricity |
| US8534069B2 (en) | 2008-08-05 | 2013-09-17 | Michael J. Parrella | Control system to manage and optimize a geothermal electric generation system from one or more wells that individually produce heat |
| US9423158B2 (en) | 2008-08-05 | 2016-08-23 | Michael J. Parrella | System and method of maximizing heat transfer at the bottom of a well using heat conductive components and a predictive model |
| KR101078647B1 (en) | 2009-09-30 | 2011-11-01 | 삼성중공업 주식회사 | Electronic power plant using hot water gushing out of seabed |
| JP2016070516A (en) * | 2014-09-26 | 2016-05-09 | 鹿島建設株式会社 | Magma power generation system, and method of manufacturing magma power generation system |
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