Multisalt-carbon chemical cooler for space applications

Nikanpour, Darius; Antukh, A. A.; Snelson, K.; Васильев, Л. Л.; Lebru, A.

doi:10.1007/bf02699227

Cited by 24 publications

(12 citation statements)

References 3 publications

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“…However, above 125°C, AC becomes a catalyst for the reaction: methanol → water + dimethyl ether, which would stop the adsorption process [26]. Vasiliev [27,28] has successfully experimented with mixtures of metallic chlorides impregnated into active carbon fibers. Since CaCl 2 for example has such a large concentration change (1, 2 or 4 mol of ammonia per mole of CaCl 2 , depending upon the reaction) it can significantly enhance the performance.…”

Section: Activated Carbonsmentioning

confidence: 99%

Basics of Adsorption Heat Pump Processes

Freni

Dawoud

Bonaccorsi

et al. 2015

SpringerBriefs in Applied Sciences and Technology

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Section: Activated Carbonsmentioning

confidence: 99%

Basics of Adsorption Heat Pump Processes

Freni

Dawoud

Bonaccorsi

et al. 2015

SpringerBriefs in Applied Sciences and Technology

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“…Ammonia vapors move from one adsorber to the other under the action of the pressure drop caused by the temperature drop (sorption potential). Figures 7 and 8 show the scheme and the general view of the resorption heat pump [5,28]. The low-temperature adsorber 1 is filled with activated carbon fiber impregnated with BaCl 2 salt, and the high-temperature adsorber 2 is filled with activated carbon fiber impregnated with NiCl 2 salt -a stronger sorbent compared to BaCl 2 .…”

Section: Thermodynamics and Heat And Mass Exchange In Sorption Heatmentioning

confidence: 99%

“…An adsorption heat pump consisting of two adsorbers with a temperature control system and utilization of heat (heat pipes) is schematically represented in Fig. 3 [3,5]. Activated carbons, zeolites, and silica gels have found the widest application as sorbents for air-conditioning and ventilation systems [15].…”

Section: Thermodynamics and Heat And Mass Exchange In Sorption Heatmentioning

confidence: 99%

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Prospects for employing heat pumps in the Republic of Belarus

Васильев

2005

J Eng Phys Thermophys

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ev UDC 621.577A brief analysis of the possibilities of employing sorption heat pumps in the Republic of Belarus is given. Primary consideration is given to the light-duty heat pumps used for air-conditioning systems with automatic switching from the heating to the cooling state (air/water). One important component of sorption heat pumps is the low-temperature power source, which strongly influences the design of the heat pump in terms of economy and environmental protection.The Republic of Belarus is situated in a geographical zone where the average summer temperature exceeds 20 o C and in winter it is close to 0 o C. Therefore, the application of heat pumps is economically sound mainly for heating, although in a certain period of the summertime they can also be used for air/water cooling. It is known that 90% of the global population need heat pumps for the purposes of heating and cooling. In the present paper, primary consideration is given to the light-duty heat pumps used for air-conditioning systems with automatic switching from the heating to the cooling state (air/water). In international practice, to achieve the above purpose, electrically operated steam compression heat pumps [1], in which, instead of the ecologically dangerous coolant R22, coolants R410A and R407C, as well as propane, propylene, ammonia, and CO 2 are used, are widely used. However, in the last few years, publications devoted to the development and implementation of sorption (absorption and adsorption) gas-operated (flame, gas burners) heat pumps have appeared. Unfortunately, quantity production of sorption heat pumps has been set up so far only in Japan and in the USA, while two or three years ago China began their quantity production as a part of air-conditioning systems for industrial enterprises (absorption heat pumps: heat-transfer material -lithium bromide/water) [2]. At present, of the 9 million heat pumps installed throughout the world, Europe has only 450 thousand, and they are used mainly on the basis of the gas-gas cycle for the purposes of heating in winter and cooling in summer. Of these, 135 thousand heat pumps operate in Central Europe only for air and water heating. The demands for heat pumps are satisfied mainly due to their importation from the USA and Japan. Therefore, national programs of production of heat pumps are welcomed and stimulated in every way. In Switzerland, 40% of new one-and two-family houses are equipped with heat pumps. A similar situation occurs in Austria. For private homes, of great interest are light-duty adsorption heat pumps (zeolites/water, silica gels+salts/water; active carbons/alcohol, etc.) [3][4][5][6]. One important component of sorption heat pumps is the low-temperature energy source, which strongly influences their design in terms of economy and environmental protection. Consequently, the design of a heat source depends in many respects on the chosen low-temperature energy source: atmospheric air, outflowing air of rooms (ventilation release), waters of rivers and lakes and ground waters...

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“…The increasing efficiency of new power sources (cogeneration, trigeneration systems, fuel cells, photovoltaic systems) is considered to be performed with the help of solid sorption heat pumps, refrigerators, accumulators of the heat and cold, heat transformers, fuel gas (natural gas and hydrogen) storage systems and efficient heat exchangers [3,4]. Low temperature power systems are generally significantly less expensive for producing compared to high temperature ones.…”

Section: Trigeneration Systems Based On Sorption Heat Pumpsmentioning

confidence: 99%

Application of sorption heat pumps for increasing of new power sources efficiency

Vasiliev¹,

Filatova²,

Tsitovich³

2010

Archives of Thermodynamics

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In the 21st century the way to increase the efficiency of new sources of energy is directly related with extended exploration of renewable energy. This modern tendency ensures the fuel economy needs to be realized with nature protection. The increasing of new power sources efficiency (cogeneration, trigeneration systems, fuel cells, photovoltaic systems) can be performed by application of solid sorption heat pumps, regrigerators, heat and cold accumulators, heat transformers, natural gas and hydrogen storage systems and efficient heat exchangers.

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Multisalt-carbon chemical cooler for space applications

Cited by 24 publications

References 3 publications

Basics of Adsorption Heat Pump Processes

Basics of Adsorption Heat Pump Processes

Prospects for employing heat pumps in the Republic of Belarus

Application of sorption heat pumps for increasing of new power sources efficiency

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