Article ID Journal Published Year Pages File Type
4992078 Applied Thermal Engineering 2017 13 Pages PDF
Abstract
Measurements of cooling power and heat demand are presented for an adsorption heat pump (AHP) that integrated a finned adsorbent heat exchanger and a solar collector. For this study the adsorbent heat exchanger was heated/cooled with fluid at near constant temperature. Results from a bench scale, large temperature jump (LTJ) test were scaled to predict the outcome of a larger experiment (adjusting for heat losses and additional heat capacities). The AHP's measured coefficients of performance were COP ∈ [0.119, 0.236] versus COP ∈ [0.233, 0.337] expected. The factor of discrepancy in specific cooling power (predicted cooling power divided by measured cooling power) is 1.1-2.0 versus a range of 2-6 suggested elsewhere. Although the scale-up procedure accounted for additional heat capacities, unwanted air ingress (even for mole fractions < 0.1%) might have substantially reduced adsorption/evaporation rates.
Related Topics
Physical Sciences and Engineering Chemical Engineering Fluid Flow and Transfer Processes
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