2010 14th International Heat Transfer Conference, Volume 8 2010
DOI: 10.1115/ihtc14-23383
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Heat Transfer Design in Adsorption Refrigeration Systems for Efficient Use of Low Grade Thermal Energy

Abstract: Adsorption refrigeration and heat pump systems have been considered as very important means for the efficient use of low grade thermal energy in the temperature range of 60–150°C. Sorption systems are merely heat exchanger based thermodynamic systems, and therefore a good design to optimize heat and mass transfer with reaction or sorption processes is very important for high performance of the systems. Studies on heat and mass transfer enhancement in adsorption beds have been done extensively. Notable techniqu… Show more

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Cited by 14 publications
(12 citation statements)
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“…The optimization of heat recovery is critical to solve the problem of the efficient use of energy and, consequently, to promote the reduction of gaseous emissions and consumption of oil and natural gas, since the reduction of energy consumption is closely linked to improvement of heat transfer (Cheng and Liang, 2012a;Kaluri and Basak, 2011;Onishi et al, 2013a;Wang et al, 2011). Thereby, harnessing energy from process streams through thermal integration between heat exchangers and cooling and/or heating systems is one of the most effective ways to reduce costs.…”
Section: Introductionmentioning
confidence: 99%
“…The optimization of heat recovery is critical to solve the problem of the efficient use of energy and, consequently, to promote the reduction of gaseous emissions and consumption of oil and natural gas, since the reduction of energy consumption is closely linked to improvement of heat transfer (Cheng and Liang, 2012a;Kaluri and Basak, 2011;Onishi et al, 2013a;Wang et al, 2011). Thereby, harnessing energy from process streams through thermal integration between heat exchangers and cooling and/or heating systems is one of the most effective ways to reduce costs.…”
Section: Introductionmentioning
confidence: 99%
“…Since nearly 80% of the total energy consumption is related to heat transfer, improvement on heat transfer performance is of great significance to the reduction of the energy consumption [1][2][3][4]. In this perspective, heat exchangers are one of the most efficient types of heat transfer equipment used to recover heat between two process fluids [5,6].…”
Section: Introductionmentioning
confidence: 99%
“…Meanwhile R.Z.Wang [6] presented the effective use of low grade thermal energy (60-150 o C) for sorption refrigeration system and the results shows that for silica gel-water C.O.P is 0.35-0.6, however for ice making with cacl 2 & ammonia as working pair shows C.O.P 0.2-0.4.Wang found that with the combination of an internal heat recovery and double bed adsorption cooling working on low grade temperature range 150-250 o C gives the C.O.P value of 1.5 or more than that. In another research conducted by I.A.Tan & M.Abdullah [7] they has carried out an experimentation by using the three different working pair for waste heat driven adsorption A/C system, the experimentally conducted data shows that activated carbon-ammonia pair able to produce chilled water outlet of In a research performed by Tso C.Y [8] for application of green buildings by utilising double bed with copper u-tube and circular plate fin structure and silica gel-water as working pair.…”
Section: ____________________________________________________________mentioning
confidence: 99%
“…The adsorber bed contains the three concentric pipe in which innermost pipe is utilised for heating and the adsorbing material is placed in between the inner and middle tube by taking care of the radial space between it should be approximately equal to 4mm for better performance of adsorber bed and the outer tube is required for adsorber bed cooling which is cooled by circulating cooling water.The system is designed for cooling effect of 2Kw by taking cycle time as 300 sec (5minutes) and The adsorber temperature is decided as Tad=90 o C [6] as the adsorber bed is designed for utilising the low amount (grade) of thermal energy between the Range of 60-150 o C&With the increasing in adsorber bed temperature the adsorption capacity of activated carbon and ammonia pair is decreases [12].…”
Section: Fig-1mentioning
confidence: 99%