[특허]Thermal energy conversion device

Echogen Power Systems, LLC

검색어에 아래의 연산자를 사용하시면 더 정확한 검색결과를 얻을 수 있습니다.
검색연산자

검색도움말
검색연산자	기능	검색시 예
()	우선순위가 가장 높은 연산자	예1) (나노 (기계 \| machine))
공백	두 개의 검색어(식)을 모두 포함하고 있는 문서 검색	예1) (나노 기계) 예2) 나노 장영실
\|	두 개의 검색어(식) 중 하나 이상 포함하고 있는 문서 검색	예1) (줄기세포 \| 면역) 예2) 줄기세포 \| 장영실
!	NOT 이후에 있는 검색어가 포함된 문서는 제외	예1) (황금 !백금) 예2) !image
*	검색어의 *란에 0개 이상의 임의의 문자가 포함된 문서 검색	예) semi*
""	따옴표 내의 구문과 완전히 일치하는 문서만 검색	예) "Transform and Quantization"

과학기술 지식인프라 ScienceON

연합인증

연합인증 가입 기관의 연구자들은 소속기관의 인증정보(ID와 암호)를 이용해 다른 대학, 연구기관, 서비스 공급자의 다양한 온라인 자원과 연구 데이터를 이용할 수 있습니다.

이는 여행자가 자국에서 발행 받은 여권으로 세계 각국을 자유롭게 여행할 수 있는 것과 같습니다.

연합인증으로 이용이 가능한 서비스는 NTIS, DataON, Edison, Kafe, Webinar 등이 있습니다.

한번의 인증절차만으로 연합인증 가입 서비스에 추가 로그인 없이 이용이 가능합니다.

다만, 연합인증을 위해서는 최초 1회만 인증 절차가 필요합니다. (회원이 아닐 경우 회원 가입이 필요합니다.)

연합인증 절차는 다음과 같습니다.

최초이용시에는
ScienceON에 로그인 → 연합인증 서비스 접속 → 로그인 (본인 확인 또는 회원가입) → 서비스 이용

그 이후에는
ScienceON 로그인 → 연합인증 서비스 접속 → 서비스 이용

연합인증을 활용하시면 KISTI가 제공하는 다양한 서비스를 편리하게 이용하실 수 있습니다.

특허 상세정보

MyON담기

내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Thermal energy conversion device

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F01K-013/00 F01K-013/02 F01B-029/10 F02G-001/04 F01K-025/10 F01K-003/18 F01K-007/16
출원번호	US-0631412 (2009-12-04)
등록번호	US-9115605 (2015-08-25)
발명자 / 주소	Held, Timothy J. Hostler, Stephen Miller, Jason D. Hume, Brian F.
출원인 / 주소	Echogen Power Systems, LLC
대리인 / 주소	Edmonds & Nolte, PC
인용정보	피인용 횟수 : 1 인용 특허 : 242

초록
▼

Embodiments provide a power generation device that utilizes a working fluid containing carbon dioxide within a working fluid circuit having high and low pressure sides. Components of the device may include a heat exchanger configured to be in thermal communication with a heat source whereby thermal energy is transferred from the heat source to the working fluid, an expander located between the high and low pressure sides of the working fluid circuit and operative to convert a pressure drop in the working fluid to mechanical energy, a recuperator operative to transfer thermal energy between the high and low pressure sides, a cooler operative to control temperature of the working fluid in the low pressure side, a pump operative to circulate the working fluid through the working fluid circuit, and a mass management system configured to control an amount of working fluid mass in the working fluid circuit.

대표
청구항
▼

1. A thermal energy conversion device for converting thermal energy into mechanical energy, comprising: a working fluid circuit configured to flow a working fluid therethrough, the working fluid circuit comprising: a heat exchanger configured to be in thermal communication with a heat source and to transfer thermal energy from the heat source to the working fluid;an expander in fluid communication with and disposed downstream of the heat exchanger, the expander configured to convert a pressure drop in the working fluid to mechanical energy; anda pump fluidly coupled to the working fluid circuit and configured to circulate the working fluid through the working fluid circuit; anda mass management system fluidly coupled to an outlet of the pump and configured to remove the working fluid at a first pressure and a first density from a location downstream of the pump and upstream of the heat exchanger, and further fluidly coupled to an inlet of the pump and configured to add the working fluid from the mass management system to a location upstream of the pump, the first pressure being greater than a pressure of the working fluid at or adjacent to the inlet of the pump and the first density being greater than a density of the working fluid at or adjacent to the inlet of the pump. 2. The thermal energy conversion device of claim 1, wherein the heat source is a waste heat source. 3. The thermal energy conversion device of claim 1, further comprising a recuperator fluidly coupled to the expander, wherein: the working fluid circuit further comprises a high pressure side and a low pressure side;the expander is fluidly arranged between the high pressure side and the low pressure side of the working fluid circuit;the pump is fluidly coupled to the working fluid circuit between the low pressure side and the high pressure side of the working fluid circuit; andthe recuperator is configured to transfer thermal energy between the high pressure side and the low pressure side of the working fluid circuit. 4. The thermal energy conversion device of claim 3, wherein the recuperator is configured to transfer thermal energy from the working fluid in the low pressure side to the working fluid in the high pressure side of the working fluid circuit. 5. The thermal energy conversion device of claim 1, wherein: the working fluid circuit further comprises a high pressure side and a low pressure side and the working fluid is contained within the working fluid circuit;the expander is fluidly arranged between the high pressure side and the low pressure side of the working fluid circuit;the pump is fluidly coupled to the working fluid circuit between the low pressure side and the high pressure side of the working fluid circuit;the working fluid comprises carbon dioxide;the high pressure side of the working fluid circuit contains the working fluid in a supercritical state; andthe low pressure side of the working fluid circuit contains the working fluid in a subcritical state. 6. The thermal energy conversion device of claim 1, further comprising a cooler in fluid communication with and disposed downstream of the expander, wherein: the working fluid circuit further comprises a high pressure side and a low pressure side;the expander is fluidly arranged between the high pressure side and the low pressure side of the working fluid circuit;the pump is fluidly coupled to the working fluid circuit between the low pressure side and the high pressure side of the working fluid circuit; andthe cooler is configured to control a temperature of the working fluid in the low pressure side. 7. The thermal energy conversion device of claim 1, wherein the mass management system comprises a mass control tank having a working fluid mixture comprising a higher density working fluid and a lower density working fluid disposed therein. 8. The thermal energy conversion device of claim 7, wherein: the working fluid circuit further comprises a high pressure side and a low pressure side and the working fluid is contained within the working fluid circuit;the expander is fluidly arranged between the high pressure side and the low pressure side of the working fluid circuit;the pump is fluidly coupled to the working fluid circuit between the low pressure side and the high pressure side of the working fluid circuit;the location upstream of the pump is the low pressure side; andthe mass management system comprises a valve coupled to the mass control tank and configured to release the higher density working fluid into the low pressure side of the working fluid circuit. 9. The thermal energy conversion device of claim 1, wherein: the working fluid circuit further comprises a high pressure side and a low pressure side and the working fluid is contained within the working fluid circuit;the expander is fluidly arranged between the high pressure side and the low pressure side of the working fluid circuit;the pump is fluidly coupled to the working fluid circuit between the low pressure side and the high pressure side of the working fluid circuit;the location downstream of the pump is the high pressure side; andthe mass management system comprises a valve positioned to draw the working fluid from the high pressure side of the working fluid circuit at a location upstream of the heat exchanger. 10. The thermal energy conversion device of claim 1, wherein: the working fluid circuit further comprises a high pressure side and a low pressure side and the working fluid is contained within the working fluid circuit;the expander is fluidly arranged between the high pressure side and the low pressure side of the working fluid circuit;the pump is fluidly coupled to the working fluid circuit between the low pressure side and the high pressure side of the working fluid circuit;the location downstream of the pump is the high pressure side; andthe mass management system comprises a valve positioned to draw the working fluid from the high pressure side of the working fluid circuit at a location downstream of the heat exchanger. 11. The thermal energy conversion device of claim 1, further comprising a skid supporting and housing at least a portion of the working fluid circuit and having a plurality of connection points to facilitate the operation and maintenance of the working fluid circuit. 12. The thermal energy conversion device of claim 11, wherein the plurality of connection points further comprises a cooling supply return line connection point. 13. The thermal energy conversion device of claim 11, wherein the plurality of connection points further comprises a mass management fill connection point fluidly coupling the mass management system with an external source of the working fluid. 14. The thermal energy conversion device of claim 11, wherein the plurality of connection points further comprises a carbon dioxide pump vent connection point. 15. The thermal energy conversion device of claim 11, wherein the plurality of connection points further comprises a high pressure vent connection point arranged downstream from the pump and upstream of the expander in the working fluid circuit. 16. A power generation device for converting thermal energy into mechanical energy, comprising: a working fluid circuit configured to flow a working fluid therethrough, the working fluid circuit comprising: a heat exchanger configured to be in thermal communication with a heat source and to transfer thermal energy from the heat source to the working fluid;an expander in fluid communication with and disposed downstream of the heat exchanger, the expander configured to convert a pressure drop in the working fluid to mechanical energy;a cooler in fluid communication with and disposed downstream of the expander and configured to control a temperature of the working fluid flowing from an outlet of the expander; anda pump fluidly coupled to the working fluid circuit and configured to circulate the working fluid through the working fluid circuit;a mass management system having a mass control tank comprising an inlet fluidly coupled to an outlet of the pump and configured to remove the working fluid from a location downstream of the pump and upstream of the heat exchanger and an outlet fluidly coupled to an inlet of the pump and configured to add working fluid from the mass control tank to a location upstream of the pump; anda support structure for housing and supporting the working fluid circuit and the mass management system, the support structure having a mass management connection point configured to couple the mass management system to an external source of the working fluid. 17. The power generation device of claim 16, further comprising a control system operative to control a plurality of valves fluidly coupled to the working fluid circuit. 18. The power generation device of claim 16, further comprising an expansion device operatively connected to the pump and configured to drive the pump. 19. The power generation device of claim 16, further comprising: a power generator operatively coupled to the expander; anda cooling circuit configured for cooling the power generator. 20. The power generation device of claim 16, wherein: the working fluid circuit further comprises a high pressure side and a low pressure side and the working fluid is contained within the working fluid circuit;the expander is fluidly arranged between the high pressure side and the low pressure side of the working fluid circuit;the pump is fluidly coupled to the working fluid circuit between the low pressure side and the high pressure side of the working fluid circuit; andthe mass control tank is fluidly coupled to the high and low pressure sides of the working fluid circuit with two or more valves to facilitate addition or subtraction of the working fluid to or from the mass control tank. 21. The power generation device of claim 16, further comprising: a motor operatively coupled to the pump and configured to drive the pump; anda variable frequency drive for controlling operation of the motor. 22. The power generation device of claim 16, wherein the heat source is a waste heat source. 23. The power generation device of claim 16, wherein: the working fluid circuit further comprises a high pressure side and a low pressure side and the working fluid is contained within the working fluid circuit;the expander is fluidly arranged between the high pressure side and the low pressure side of the working fluid circuit;the pump is fluidly coupled to the working fluid circuit between the low pressure side and the high pressure side of the working fluid circuit; andthe working fluid is in a supercritical state or a subcritical state within the low pressure side of the working fluid circuit. 24. The power generation device of claim 16, wherein the working fluid circuit further comprises: a high pressure side and a low pressure side; anda recuperator fluidly coupled to the expander and configured to transfer thermal energy between the high pressure side and the low pressure side of the working fluid circuit,wherein, the expander is fluidly arranged between the high pressure side and the low pressure side of the working fluid circuit, and the pump is fluidly coupled to the working fluid circuit between the low pressure side and the high pressure side of the working fluid circuit. 25. The power generation device of claim 24, wherein the recuperator is configured to transfer thermal energy from the working fluid in the low pressure side to the working fluid in the high pressure side of the working fluid circuit. 26. The power generation device of claim 16, wherein the support structure further comprises one or more radiators for cooling and ventilation of the support structure or the working fluid circuit. 27. The power generation device of claim 16, wherein the mass management connection point is configured for adding the working fluid to the mass management system downstream of the mass control tank. 28. The power generation device of claim 16, further comprising a plurality of connection points disposed on the support structure to facilitate installation, operation, and maintenance of the working fluid circuit. 29. The power generation device of claim 28, wherein the plurality of connection points comprises a heat source supply connection point for placing the heat source in thermal communication with the heat exchanger, a cooling supply connection configured for providing a coolant in thermal communication with the cooler, or a combination thereof. 30. The power generation device of claim 28, wherein the plurality of connection points comprises a heat source supply connection point and a heat source return connection point. 31. The power generation device of claim 16, wherein: the working fluid circuit further comprises a high pressure side and a low pressure side and the working fluid is contained within the working fluid circuit;the expander is fluidly arranged between the high pressure side and the low pressure side of the working fluid circuit;the pump is fluidly coupled to the working fluid circuit between the low pressure side and the high pressure side of the working fluid circuit;the working fluid comprises carbon dioxide; andthe high pressure side of the working fluid circuit contains the working fluid in a supercritical state. 32. The power generation device of claim 16, wherein: the working fluid circuit further comprises a high pressure side and a low pressure side and the working fluid is contained within the working fluid circuit;the expander is fluidly arranged between the high pressure side and the low pressure side of the working fluid circuit;the pump is fluidly coupled to the working fluid circuit between the low pressure side and the high pressure side of the working fluid circuit;the location upstream of the pump is the low pressure side;the mass management tank comprises higher density working fluid and lower density working fluid; andthe working fluid added from the mass control tank to the low pressure side of the working fluid circuit comprises the higher density working fluid. 33. A power generation device for converting thermal energy into mechanical energy, comprising: a housing;a working fluid circuit disposed in the housing and configured to flow a working fluid therethrough;a heat exchanger disposed in the housing and fluidly coupled to and in thermal communication with the working fluid circuit, configured to be fluidly coupled to and in thermal communication with a heat source, and configured to transfer thermal energy from the heat source to the working fluid;an expander disposed in the housing, fluidly coupled to and in thermal communication with the working fluid circuit, and configured to convert thermal energy to mechanical energy by a pressure drop in the working fluid flowing therethrough;a pump disposed in the housing, fluidly coupled to the working fluid circuit and configured to circulate the working fluid through the working fluid circuit; anda mass management system disposed in the housing and comprising: a mass control tank having an inlet fluidly coupled to an outlet of the pump and configured to remove the working fluid from a location downstream of the pump and upstream of the heat exchanger and an outlet fluidly coupled to an inlet of the pump and configured to add the working fluid from the mass control tank to a location upstream of the pump;a fluid line extending from a connection point downstream from the mass control tank and terminating in a mass management fill point disposed on an exterior of the housing and configured to couple the fluid line to an external source of working fluid; anda valve disposed downstream of the outlet of the mass control tank and the connection point along the direction of fluid flow through the mass management system, wherein the valve is configured to be controlled to deliver working fluid from the external source, working fluid from the mass control tank, or a combination thereof into the location upstream of the pump. 34. The power generation device of claim 33, further comprising a variable frequency drive coupled to the pump, wherein: the working fluid circuit further comprises a high pressure side and a low pressure side;the expander is fluidly arranged between the high pressure side and the low pressure side of the working fluid circuit;the pump is fluidly coupled to the working fluid circuit between the low pressure side and the high pressure side of the working fluid circuit; andthe variable frequency drive is configured to control mass flow rate or temperature of the working fluid within the high pressure side of the working fluid circuit. 35. The power generation device of claim 33, further comprising a generator or an alternator coupled to the expander and configured to convert the mechanical energy into electrical energy. 36. The power generation device of claim 35, wherein the generator or the alternator is coupled to the expander by a shaft. 37. The power generation device of claim 33, wherein: the working fluid circuit further comprises a high pressure side and a low pressure side and the working fluid is contained within the working fluid circuit;the expander is fluidly arranged between the high pressure side and the low pressure side of the working fluid circuit;the pump is fluidly coupled to the working fluid circuit between the low pressure side and the high pressure side of the working fluid circuit;the working fluid comprises carbon dioxide; andthe high pressure side of the working fluid circuit contains the working fluid in a supercritical state. 38. The power generation device of claim 33, further comprising a recuperator and a cooler, wherein: the working fluid circuit further comprises a high pressure side and a low pressure side and the working fluid is contained within the working fluid circuit;the expander is fluidly arranged between the high pressure side and the low pressure side of the working fluid circuit;the pump is fluidly coupled to the working fluid circuit between the low pressure side and the high pressure side of the working fluid circuit;the recuperator is fluidly coupled to the working fluid circuit, disposed downstream of the expander on the low pressure side, and configured to transfer thermal energy between the high and low pressure sides; andthe cooler is fluidly coupled to and in thermal communication with the working fluid in the low pressure side and configured to remove thermal energy from the working fluid in the low pressure side of the working fluid circuit. 39. The power generation device of claim 33, wherein the pump is coupled to the expander by a shaft and configured to be driven by the mechanical energy.

이 특허에 인용된 특허 (242)

이 특허를 인용한 특허 피인용횟수: 1

Margiott, Paul. Fuel cell power plant cooling network integrated with a thermal hydraulic engine. USP2017089742196.

IPC 상위 출원인

내보내기

상세정보
내보내기 구분	파일저장 인쇄 메일전송
구성항목	관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	> 총 건의 자료가 검색되었습니다. > 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) > 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. > 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) > 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오 > ~ > Text(ASCII format) Excel format

과학기술 지식인프라 ScienceON

ScienceON Chatbot

연합인증

특허 상세정보

Thermal energy conversion device

초록
▼

대표
청구항
▼

이 특허에 인용된 특허 (242)

이 특허를 인용한 특허 피인용횟수: 1

IPC 상위 출원인

과제정보

상세정보조회

원문조회

IPC 상세정보(version : 201201)

연구과제 성과물(0)

참여연구원의 다른 문헌(0)

처리중입니다.

잠시만 기다려주세요.

ScienceON Chatbot

연합인증

특허 상세정보

Thermal energy conversion device

초록 ▼

대표청구항 ▼

이 특허에 인용된 특허 (242)

이 특허를 인용한 특허 피인용횟수: 1

IPC 상위 출원인

과제정보

상세정보조회

원문조회

IPC 상세정보(version : 201201)

연구과제 성과물(0)

참여연구원의 다른 문헌(0)

처리중입니다.

잠시만 기다려주세요.

초록
▼

대표
청구항
▼