Numerical Simulation of Energy Saving at Different Air Supply Angles in Air-Conditioned Room

Yang, Jun Qiang; Li, Mingjun

doi:10.4028/www.scientific.net/amm.385-386.263

Cited by 1 publication

(2 citation statements)

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“…The standard wall function was adopted in this work to simulate the flow in the near-wall region, and the SIMPLE algorithm is used to couple the pressure and velocity. To simplify the problem, assumptions are made as follows [4,21]:…”

Section: Methods and Governing Equationsmentioning

confidence: 99%

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A Parametric Study and Optimization of an Air Conditioning System for a Heat-Loaded Room

Yao

Bai

Kase

2018

Mathematical Problems in Engineering

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Optimization of an air conditioning system is critical in terms of the transient and steady state behavior of the air distribution along the room and the temperature of the equipment themselves. In this paper, three computational techniques, namely, the standard k-ε, RNG k-ε, and the k-ω model, are used to numerically simulate and determine the air distribution in an air-conditioned room. The simulation results for all three methods are verified via a comparison with an experiment involving a room that contains a computer server which generates up to 6 kW of heat. In doing so and by additionally performing an error analysis, it is determined that the k-ω model produces the most accurate results. The results also indicated that the direction of air supply from the air conditioners has a strong impact on the velocity field and temperature distribution along the room and on the computer server. Hence, many candidate directions of air supply options were selected for study and by conducting a performance evaluation in terms of air temperature around the server, the optimal solution was obtained.

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Section: Methods and Governing Equationsmentioning

confidence: 99%

“…As regards this analysis, all the supply combinations have good performance on the energy utilization coefficient (>1) [21,26,27] except for the condition 9 (see Table 5). The best performance rose in the case of combination 2 (1.243) and the coefficient of condition 5 is 1.231.…”

Section: Analysis Of the Air Supply Directionmentioning

confidence: 99%