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公开(公告)号：US10082030B2
公开(公告)日：2018-09-25
申请号：US15113374
申请日：2015-01-20
Applicant: Climeon AB
Inventor： Magnus Genrup , Olle Bergström , Joachim Karthauser , Kari Munukka , Esko Ahlbom , Per Askebjer
CPC classification number: F01D5/04 , F01D1/06 , F01D15/10 , F01K7/16 , F01K23/06 , F01K23/18 , F01K25/08 , F01K25/103 , F05D2220/31
Abstract: Expansion machines in thermodynamic cycles operate at low pressures, i.e. below 10 bar. The interplay among components including gas generator, expansion machine, heat exchangers and pressure reduction device (absorber or condenser) is optimized, resulting in configurations operating at the lowest achievable cost level. A single stage radial turbine characterized by a pressure ratio of 5-10, a dimensionless speed of about 0.7 and a loading coefficient of 0.7 is a preferred expansion machine for certain thermodynamic cycles involving CO2 gas to permit such radial turbines to operate close to their optimum design specification and highest efficiency level. Methods to handle liquids which may condense within or inside the turbine are also disclosed, as well as methods to handle axial pressure on bearings and methods to protect lubricant in bearings.
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2.发明申请An Improved Thermodynamic Cycle Operating at Low Pressure Using a Radial Turbine 审中-公开使用径向涡轮机在低压下工作的改进的热力循环公开(公告)号：US20170037728A1
公开(公告)日：2017-02-09
申请号：US15113374
申请日：2015-01-20
Applicant: Climeon AB
Inventor： Magnus Genrup , Olle Bergström , Joachim Karthauser , Kari Munukka , Esko Ahlbom , Per Askebjer
CPC classification number: F01D5/04 , F01D1/06 , F01D15/10 , F01K7/16 , F01K23/06 , F01K23/18 , F01K25/08 , F01K25/103 , F05D2220/31
Abstract: Expansion machines in thermodynamic cycles operate at low pressures, i.e. below 10 bar. The interplay among components including gas generator, expansion machine, heat exchangers and pressure reduction device (absorber or condenser) is optimized, resulting in configurations operating at the lowest achievable cost level. A single stage radial turbine characterized by a pressure ratio of 5-10, a dimensionless speed of about 0.7 and a loading coefficient of 0.7 is a preferred expansion machine for certain thermodynamic cycles involving CO2 gas to permit such radial turbines to operate close to their optimum design specification and highest efficiency level. Methods to handle liquids which may condense within or inside the turbine are also disclosed, as well as methods to handle axial pressure on bearings and methods to protect lubricant in bearings.
Abstract translation: 热力循环中的膨胀机在低压下工作，即低于10巴。 包括气体发生器，膨胀机，热交换器和减压装置（吸收器或冷凝器）在内的组件之间的相互作用被优化，导致以最低可实现的成本水平运行的配置。 特征在于压力比为5-10，无量纲速度为约0.7，负载系数为0.7的单级径向涡轮机是用于某些热力学循环的优选膨胀机，其涉及CO 2气体，以允许这种径向涡轮机接近其最佳 设计规范和最高效率水平。 还公开了处理在涡轮机内或内部会凝结的液体的方法，以及处理轴承上的轴向压力的方法和保护轴承中的润滑剂的方法。
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3.发明申请ENERGY GENERATION FROM WASTE HEAT USING THE CARBON CARRIER THERMODYNAMIC CYCLE 审中-公开使用碳载体热能循环的废热能量产生公开(公告)号：US20160201521A1
公开(公告)日：2016-07-14
申请号：US14916154
申请日：2014-08-28
Applicant: CLIMEON AB
Inventor： Joachim Karthauser
CPC classification number: F01K25/08 , F01K25/065 , F24T10/00 , F25B11/02 , F25B15/02 , F25B25/02 , F25B27/02 , F25B30/04 , Y02A30/274 , Y02A30/277 , Y02B30/62 , Y02E10/10
Abstract: The invention relates to a method is provided which allows the generation of high temperatures, e.g. above 120° C. and maximum 200° C. and low temperatures, e.g. below minimum minus 20° C., from waste heat or geothermal heat or similar heat sources having a temperature of between 20 and 70° C. The method may use essentially pure carbon dioxide as primary working fluid in an essentially closed loop as described in previous disclosures, alternatively low boiling solvents are employed. The common feature of different embodiments is that the system operates at least partly, specifically in the absorber or cold side of the process, below atmospheric pressure (1 bar). In the method a heat pump or heat transformer is realized within the technical boundaries mentioned above. The invention also relates to the use of the method in combination with a district heating system for elevating the temperature of the district heating medium or for electricity production on demand.
Abstract translation: 本发明涉及一种允许产生高温的方法，例如， 高于120℃，最高温度为200℃。 低于最小值-20°C，来自废热或地热或温度在20至70℃之间的类似热源。该方法可以使用基本上纯二氧化碳作为主要工作流体在基本闭合的环路中，如前述 公开，或者使用低沸点溶剂。 不同实施例的共同特征是系统至少部分地，特别地在该过程的吸收器或冷侧中操作，低于大气压（1巴）。 在该方法中，在上述技术边界内实现了热泵或热变压器。 本发明还涉及该方法与用于提高区域供热介质的温度或根据需要进行电力生产的区域供热系统的组合的使用。
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4.发明申请公开(公告)号：US20170159504A1
公开(公告)日：2017-06-08
申请号：US15236136
申请日：2016-08-12
Applicant: ClimeOn AB
Inventor： Thomas Ostrom , Joachim Karthauser
CPC classification number: F01K25/065 , F01K3/00 , F01K25/103 , F25B15/00 , F25B27/007 , F25B30/04 , F25B2309/00 , H02K7/1823
Abstract: A method for producing electrical energy is disclosed which uses a heat source, such as solar heat, geothermal heat, industrial waste heat or heat from power production processes, providing heat of 150° C. or below, further comprising an absorber system in which a working gas, primarily carbon dioxide CO2, is absorbed into an absorbent, typically an amine, further comprising a reactor which receives heat from said heat source and in which the absorbent-CO2 mixture is split into CO2 and absorbent, further comprising an expansion machine, an electricity generator and auxiliary equipment such as pumps, pipes and heat exchangers. The system according to the method allows the cost-efficient production of electrical energy and cooling using low value heat source.
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