Optimization of room air temperature in stratum-ventilated rooms for both thermal comfort and energy saving

Zhang, Sheng; Cheng, Yong; Fang, Zhaosong; Huan, Chao; Lin, Zhang

doi:10.1016/j.apenergy.2017.07.064

Cited by 109 publications

(64 citation statements)

References 60 publications

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“…This was experimentally confirmed by Zhang et al [31]. The PMV is widely used to evaluate the thermal condition of stratum ventilation [4,17,19,27]. For example, for a stratum-ventilated office with two occupants, PMV has been used to investigate the effects of the asymmetrically distributed heat gains on thermal comfort [32].…”

Section: Proposed Subzone Control Methodsmentioning

confidence: 84%

“…The first step is to model the thermal condition of each subzone. Although the thermal condition of each subzone can be directly measured, the measurements would increase the cost of the sensors in operation [17]. Moreover, the sensors might disturb the space usage and the occupants could affect the accuracy of the sensors [23].…”

Section: Proposed Subzone Control Methodsmentioning

confidence: 99%

“…Thus, no additional sensors are required. Zhang et al [17] found the indoor air velocity of stratum ventilation can be modelled by the indoor air temperature and supply airflow rate, and the indoor air temperature is a function of the supply air parameters and cooling load [19]. The cooling load can be calculated by the supply and exit air parameters [18].…”

Section: Proposed Subzone Control Methodsmentioning

confidence: 99%

“…Via objective measurements, subjective surveys and numerical simulations, Cheng and Lin [15,16] confirmed that stratum ventilation could provide thermal comfort for multiple rows of occupants. Zhang et al [17] modified the Predicted Mean Vote (PMV) model to be a function of the supply airflow rate and indoor air temperature, M A N U S C R I P T A C C E P T E D ACCEPTED MANUSCRIPT 3 and the indoor air temperature was optimized to achieve the preferred thermal condition (i.e., preferred PMV value) in the occupied zone with the maximal energy saving of the air conditioning system. The indoor air temperature in the occupied zone can be efficiently computed by the multi-node model [18].…”

Section: Introductionmentioning

confidence: 99%

“…To maintain the indoor air temperature at the optimal value regardless of the disturbance (e.g., the variations of the outdoor weather condition), a dynamic indoor air temperature control method based on heat removal efficiency was proposed and experimentally verified, with the root mean square error not greater than 0.18°C [19]. These studies essentially are based on the assumptions that the thermal environment of the occupied zone is uniform and all the occupants are typical persons in term of thermal comfort [14,17,19].…”

Section: Introductionmentioning

confidence: 99%

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