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de Boer, R. (author), van der Pal, M. (author)Drogen is een essentiële bewerkingsstap in de chemische, agrarische, biotechnologische, voedingsmiddelen-, polymeer-, keramische, farmaceutische, pulp- en papier-, mineraalverwerkende en houtverwerkende industrie. Het verwijderen van de vloeistof uit het product is een zeer energie-intensief proces: ongeveer 15% van het industriële...report 2023
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de Boer, R. (author), van der Pal, M. (author)Drying is an essential operation in the chemical, agricultural, biotechnology, food, polymer, ceramics, pharmaceutical, pulp and paper, mineral processing, and wood processing industries. The removal of the liquid from the product is a very energy-intensive process: about 15% of the industrial energy use is for drying purposes. This accounts for...report 2022
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van der Pal, M. (author), de Boer, R. (author), Smeding, S.F. (author), Zondag, H.A. (author)Voor industriële processen is stoom een belangrijke warmtedrager om producten en processen te verwarmen. In het Flexsteam project is gekeken naar de mogelijk heden voor energiebesparing door terugwinning, opslag en hergebruik van warmte in de vorm van stoom. Daarbij is het onderzoek specifiek gericht op het gebruik van faseovergangsmaterialen ...report 2022
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Karabanova, A. (author), Berdiyeva, P. (author), van der Pal, M. (author), Johnsen, R.E. (author), Deledda, S. (author), Blanchard, D. (author)Thermochemical heat storage is expected to play an important role in the ongoing transformation of the European energy system. The efficiency of thermochemical heat storage systems largely depends on that of the reactor, since it limits the amount of the heat stored per unit volume as well as the rate of the heat recovery. Thus, the optimization...article 2021
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- Spoelstra, S. (author), van der Pal, M. (author), Sweere, A. (author), Lycklama a Nijeholt, J.A. (author) report 2019
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- de Boer, R. (author), de Smidt, R.P. (author), Zondag, H.A. (author), van der Pal, M. (author), Energieonderzoek Centrum Nederland (author) conference paper 2018
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van der Pal, M. (author), Energieonderzoek Centrum Nederland (author)Droogprocessen zijn energie-intensief en vertegenwoordigen naar schatting 15% van het industrieel energiegebruik in Nederland. Voor het terugwinnen van de latente warmte uit de drooglucht van convectieve (sproei) drogers, een veel gebruikte methode voor het drogen van materialen, zijn de gebruikelijke methoden waarbij water wordt gecondenseerd...report 2018
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van der Pal, M. (author), Energieonderzoek Centrum Nederland (author)In dit rapport is gekeken naar de technische en economische haalbaarheid van thermo chemische recuperatie van hoge temperatuur restwarmte in de industrie. Het omzetten van restwarmte in hoog calorische brandstoffen leidt netto tot energiebesparing. De resultaten zijn verkregen op basis van gegevens uit de literatuur, gesprekken met de industrie...report 2016
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Veldhuis, J.B.J. (author), de Boer, R. (author), Elzinga, G.D. (author), van der Pal, M. (author), Energieonderzoek Centrum Nederland (author)The performance of adsorption heat pumps is strongly related to the properties of the used sorbents. Not only the pressure temperature relations that determine the operating window but also the heat and mass transfer properties, which determine cycling time and hence power density, are of great importance. The use of composite materials, such as...conference paper 2014
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- Veldhuis, J.B.J. (author), Smeding, S.F. (author), van der Pal, M. (author), Energieonderzoek Centrum Nederland (author) conference paper 2014
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Veldhuis, J.B.J. (author), Smeding, S.F. (author), van der Pal, M. (author), Energieonderzoek Centrum Nederland (author)Hybrid adsorption compression heat pump cycles can be applied to upgrade waste heat to process heat temperatures. Model calculations show a power density of 25 kW m-3 can be achieved with a COP on heat of 0.3. By optimizing reactor dimensions, cycle times and by introducing heat and mass recovery options, it is expected this performance can be...conference paper 2014
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- Veldhuis, J.B.J. (author), de Boer, R. (author), Elzinga, G.D. (author), van der Pal, M. (author) public lecture 2014
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- van der Pal, M. (author) public lecture 2013
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van der Pal, M. (author), Energieonderzoek Centrum Nederland (author)Industriële restwarmte is warmte waarvan de temperatuur te laag is om deze opnieuw in het proces in te zetten. Met warmtepomp technologie kan een deel van de industriële restwarmte in temperatuur worden verhoogd tot proceswarmte. Dit vermindert de inzet van primaire energiedragers hetgeen resulteert in netto energiebesparing....report 2013
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de Boer, R. (author), Smeding, S.F. (author), Sijpheer, N.C. (author), Bakker, E.J. (author), van der Pal, M. (author)Besides (better) utilization of available solar heat or waste heat, and thereby reduction of fossil fuel consumption, sorption cooling offers several other advantages compared to conventional compression cooling. Such as reduction of summer peaks in the electricity grid, use of natural refrigerants, and low noise & maintenance. Sorption...bookPart 2013
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Veldhuis, J.B.J. (author), de Boer, R. (author), van der Pal, M. (author), Energieonderzoek Centrum Nederland (author)For the aim of obtaining a better understanding of the performance of a salt-ammonia sorption reactor/heat exchanger a new test-rig was developed. This test-rig enables the measurement of the performance in adsorption and desorption mode of different sorption reactor designs. It measures the speed of uptake and release of ammonia gas of various...conference paper 2013
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Veldhuis, J.B.J. (author), de Boer, R. (author), Smeding, S.F. (author), van der Pal, M. (author), Wemmers, A.K. (author), Lycklama a Nijeholt, J.A. (author)Thermally driven sorption systems can provide significant energy savings, especially in industrial applications. The driving temperature for operation of such systems limits the operating window and can be a barrier for market-introduction. By adding a compressor, the sorption cycle can be run using lower waste heat temperatures. ECN has...bookPart 2013
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de Boer, R. (author), Smeding, S.F. (author), van der Pal, M. (author), Wemmers, A.K. (author)Heat pump technologies offer a significant potential for primary energy savings in industrial processes. Thermally driven heat pumps can use waste heat as driving energy source to provide either heating or cooling. A chemi-sorption heat transformer can upgrade a waste heat source to temperatures of 150 e200 _C. The specific heat transformer...article 2013
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de Boer, R. (author), Smeding, S.F. (author), van der Pal, M. (author), Wemmers, A.K. (author), Energieonderzoek Centrum Nederland (author)Heat pump technologies offer a significant potential for primary energy savings in industrial processes. Thermally driven heat pumps can use waste heat as driving energy source to provide either heating or cooling. A chemi-sorption heat transformer can upgrade a waste heat source to temperatures of 150-200°C. The specific heat...conference paper 2012
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de Boer, R. (author), Smeding, S.F. (author), Sijpheer, N.C. (author), Bakker, E.J. (author), van der Pal, M. (author), Energieonderzoek Centrum Nederland (author)Besides (better) utilisation of available solar heat or waste heat, and thereby reduction of fossil fuel consumption, sorption cooling offers several other advantages compared to conventional compression cooling. Such as reduction of summer peaks in the electricity grid, use of natural refrigerants, and low noise & maintenance. Sorption...conference paper 2011
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