Clean Energy Technologies database 5/46

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Water heating heat pump booster

Heat pumps to supply domestic hot water in district heating systems, allowing district heating temperatures below those required for domestic hot water. District heat water is used as heat source for the heat pump boosters.

ClassicsNovelsMysteries

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Fuel cell micro-CHP using solid oxide materials

Electrochemical device operating at a high temperature (600-850 ¬∞C), converting the chemical energy of a fuel directly to electrical energy. Requires a back-up option for peak heat demand. Day-night modulation.

ClassicsNovelsMysteries

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State-of-the-art evaporative technology

Converts sensible heat to enthalpy of vapour for reducing the system temperature. It can be air-mediated or water-mediated and direct or indirect.

ClassicsNovelsMysteries

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Central inverter heat pump

Air-to-air cold climate heat pump with supreme heating output - capability of 100% heating output at -20 ¬∞C.

ClassicsNovelsMysteries

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Hydrogen boiler

Boilers using hydrogen as a fuel instead of natural gas.

ClassicsNovelsMysteries

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Evaporative cooling coupled with permeable membrane

Membrane and evaporative cooling as alternative to vapour compression technologies. Independent control of dry bulb temperature and humidity. The membrane acts as barrier to separate moisture from air.

ClassicsNovelsMysteries

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Air-source heat pump using heat recovery

Air-source heat pump using heat recovery either: 1. In cooling mode, as the exhaust air from air conditioners can be recycled and used to deliver other energy services, such as water heating. 2. In heating mode, as the exhaust heat can be recovered through a heat exchanger between incoming and exhaust air.

ClassicsNovelsMysteries

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Cold climate air-source heat pump

Heat pumps whose seasonal performance factor remains above 2.5-3 while operating several days in the year at temperatures lower than -10 ¬∞C, and which could withstand -25 ¬∞C. Cold-climate heat pumps minimise losses of heating capacity as outdoor temperatures drop through the adoption of two new scroll compressors working in parallel and/or adoption of a mix of refrigerants with thermophysical properties.

ClassicsNovelsMysteries

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Fuel cell micro-CHP using polymer electrolyte membrane

Electrochemical device operating at temperatures up to 80 ¬∞C. Requires a back-up option for peak heat demand. Load following modulation.

ClassicsNovelsMysteries

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Liquid or solid desiccant evaporative cooling system

Combination of evaporative and desiccant cooling. Independent control of temperature and humidity. The liquid desiccant, or the rotary wheel in case of solid desiccant, absorbs water vapour due to the difference between the partial vapour pressure of the desiccant and the ambient. Operated by both thermal and electric energy. They can be coupled with membrane to avoid the risk of desiccant contamination.

ClassicsNovelsMysteries

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Central heat pump water heaters

Heat pump transferring heat from the outside air to a domestic hot water tank.

ClassicsNovelsMysteries

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High-temperature heat pump

Heat pump with heat sink temperatures in the range of 90 ¬∞C to 160 ¬∞C, which can be used in some commercial buildings with specific heating needs.

ClassicsNovelsMysteries

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Clean Energy Technology