Performance evaluation of personalized ventilation personalized exhaust (PV PE) system in air conditioned healthcare settings 6
Performance evaluation of personalized ventilation personalized exhaust (PV PE) system in air conditioned healthcare settings 6
... 18.50% 6. 51% 6. 64% PE 0l/s PE 10l/s PE 20l/s Figure 6. 19 Draft rating at neck/ear region of Infected Manikin with DV 6. 5 Key Findings The Infected Manikin keeps exhaling the tracer ... Manikin from inhaling contaminated air from the Infected Manikin sitting opposite After switching on the top-PE for infected manikin while switching off the PV for healthy manikin, a more than ... bring more amount of contaminated air to the Healthy manikin due to the pulling and suction effect of the PV-PE system for Healthy Manikin Considering now the cases in Figure 6. 10 and Figure 6. 11...
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Performance evaluation of personalized ventilation personalized exhaust (PV PE) system in air conditioned healthcare settings 7
... background ventilation system on the flow pattern of the indoor air, thus influencing the concentration of exhaled contaminated air at the breathing zone of HP; it is useful to compare the iF of the ... are infected or not before the Infected Person is diagnosed and is moved to an isolation room, so the effectiveness of ventilation system in removing the exhaled infectious air in the consulting ... concentration of exhaled air is measured at the breathing zone of HP, thus the change of iF over the half hour of the three cases when no PE is used is shown in Figure 7. 10 In general, the iFs in the...
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Performance evaluation of personalized ventilation personalized exhaust (PV PE) system in air conditioned healthcare settings 8
... trend of iF changes in Figures 8. 7 and 8. 8, a higher flow rate is required with DV to achieve the same iF The flow rate to be applied in the real healthcare settings can be chosen according to ... supply air diffusers involved in this study are all complex including two perforated openings and one four way diffuser, which has been introduced in Chapter Most frequently used methods for openings ... PE flow rate (l/s) Mixing ventilation Top-PE Mixing ventilation Top-PE 20 Mixing ventilation Shoulder-PE 20 Comparison of simulated and measured Intake Fraction (iF) and Personalized Exposure...
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Performance evaluation of personalized ventilation personalized exhaust (PV PE) system in air conditioned healthcare settings 9
... exposure is when HP is standing, facing the seated IP In the context of airborne infection control in healthcare settings, this novel PV-PE system is developed to help with the ventilation design which ... systems in terms of the localized extraction of the contaminated exhaled air from an Infected Person in healthcare settings Three scenarios were considered for this objective, as shown below: a Infected ... than top-PE in terms of increasing the PV air in the inhaled air • The above-mentioned conclusions imply that when a Healthy Person is working in a consultation room or a health care setting room,...
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Performance evaluation of personalized ventilation personalized exhaust (PV PE) system in air conditioned healthcare settings 1
... not independent of, but based on, previous research on PV system, local exhaust system in the field of reducing the transmission of infectious air in indoor environments, ventilation in healthcare ... control of the combined PV-PE system in conjunction with background MV or DV systems in terms of the localized extraction of the contaminated exhaled air from an Infected Person in healthcare settings ... 2 010 , 2 011 ; Zítek et al 2 010 ) So far no study has evaluated the combination of PV and LEV in healthcare settings In the field of ventilation design in healthcare centers and hospitals, a lot of studies...
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Performance evaluation of personalized ventilation personalized exhaust (PV PE) system in air conditioned healthcare settings 2
... uniformly maintained at 23 .5 °C Yang et (20 10) al 21 °C; 23 .5°C; 26 °C 26 °C ; 23 .5°C The use of PV with ceiling mounted ATD in conjunction with mixing ventilation at room air temperature of 26 °C will ... which will be inhaled again 2. 1.4 Study of temperature combination of PV supply air and background air According to American Society of Heating, Refrigerating, and Airconditioning Engineers (ASHRAE ... system in which the space is typically maintained at 23 °C Gong et al 21 °C; (20 05, 20 06) 23 .5 °C; 26 °C 23 .5 °C; 26 °C Air movement is preferred even when the room air temperature is below 26 ...
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Performance evaluation of personalized ventilation personalized exhaust (PV PE) system in air conditioned healthcare settings 3
... The air- conditioning systems in Indoor Environmental Chamber are shown in Figure 3. 3 Figure 3. 3 Schematic layout of Indoor Environmental Chamber and its air- conditioning system 3. 2.1.2 Breathing ... heights of 1.2 m, 0. 03 m away from the Infected Manikin’s face, as shown at the juncture of F5 in Figure 3. 18 Figure 3. 19 Set up of the DANTEC instrument 3. 3.4 Evaluation of the novel PV-PE system in ... up of the DANTEC instrument for room air velocity and Draft Rating b) Set up of the DANTEC instrumentfor local air velocity and Draft Rating Figure 3. 14 Set up of the DANTEC instrument 3. 3 .3 Evaluation...
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Performance evaluation of personalized ventilation personalized exhaust (PV PE) system in air conditioned healthcare settings 4
... Comparison of iF at different Gauge pressure of PE Figure 4. 16 Air streamlines showing exhaled air from Infected Manikin 4. 3 Pilot study II - Evaluation of different Personalized Exhaust devices ... examined the feasibility of Personalized Ventilation Personalized Exhaust (PV- PE) system and supports the idea of supplying more fresh air to a person as well as to exhaust the exhaled contaminated ... -50 16 -10; -30; -50 In order to evaluate the ability of personalized exhaust (PE) system in preventing the spread of contaminated air exhaled by infected people, another set of CFD simulation was...
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báo cáo hóa học:" Research Article Performance Evaluation of UML2-Modeled Embedded Streaming Applications with System-Level Simulation" pdf
... models and successfully adopts it for embedded RTES performance evaluation Performance Metamodel for Streaming Data Embedded Systems The foundations of the performance metamodel defined in this ... accurate performance evaluation for RTES Conclusions and Future Work This article presented an efficient method to model and evaluate streaming data embedded system performance with UML2 and system-level ... architectures,” EURASIP Journal of Embedded Systems, vol 2007, Article ID 82123, 11 pages, 2007 [18] S Balsamo and M Marzolla, Performance evaluation of UML software architectures with multiclass queueing...
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Performance evaluation of a solar assisted heat pump drying system
... compressor, solar irradiation and storage volume Evaluation of a rice drying system using a solar assisted heat pump was carried out by Best et al [27] They developed a combined solar assisted- heat pump ... et al [44] studied the economic performance of a solar system, air-to-air heat pumps, and several solar- assisted heat pump systems for residential heating They concluded that the air-to-air heat ... such as water heating, and space heating and cooling Morgan [19] investigated a direct expansion solar assisted heat pump using R-11 The heat pump was specially designed for use in a tropical climate,...
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Performance evaluation of air terminal devices for personalized ventilation in the tropics
... PERFORMANCE EVALUATION OF AIR TERMINAL DEVICES FOR PERSONALIZED VENTILATION IN THE TROPICS ZHOU WEI (B.Eng., Tsinghua Univ.) A THESIS SUBMITTED FOR THE DEGREE OF MASTER OF SCIENCE (BUILDING) ... the researchers with the purpose of increasing air supply volume (improving ventilation performance) but decreasing the air velocities at the location of the occupants (reducing the effects of ... for manikin body segments Contaminant concentration in the inhaled air of a person SF6 concentration in the inhaled air Contaminant concentration at a point in the room SF6 concentration in personalized...
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Performance Evaluation of Active Suspension for Passenger Cars.Using MATLAB
... Performance Evaluation of Active Suspension for Passenger Cars Using MATLAB suspension can gave better performance of suspension by having force actuator, which is a ... College of Engineering, Pune, India 13 | Page Performance Evaluation of Active Suspension for Passenger Cars Using MATLAB VI CONCLUSION The methodology was developed to design an Active suspension for ... M.E.Society's College of Engineering, Pune, India 12 | Page Performance Evaluation of Active Suspension for Passenger Cars Using MATLAB The potential for improved ride comfort and better road...
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Tài liệu COMPARATIVE STUDY ON PERFORMANCE EVALUATION OF MUTUAL FUND SCHEMES OF INDIAN COMPANIES doc
... Characteristics & performance evaluation of selected Mutual Funds in India 9th Indian Institute of Capital Market Conference [4] Michael, C J (1967) The Performance of Mutual Funds in the period ... during the study period OBJECTIVES OF THE STUDY: To evaluate and compare the performance of equity diversified mutual fund schemes of selected companies To compare the performance of equity diversified ... (Sigma) on selected schemes of selected companies Risk on selected schemes HDFC HDFC Capital Builder Fund HDFC Core & Satellite Fund HDFC Equity Fund HDFC Long Term Equity Fund HDFC Top 200 Fund...
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Báo cáo sinh học: " Performance evaluation of space-time-frequency spreading for MIMO OFDM-CDMA systems" ppt
... an open-loop MIMO OFDM-CDMA scheme using space-timefrequency spreading (STFS), in the presence of frequency-selective Rayleigh-fading channel The BER and BLER performance of the OFDM-CDMA system ... scheduling In addition, it offers better diversity/multiplexing trade-off The performance of MIMO OFDM–CDMA scheme using STFdomain spreading is investigated with zero-forcing (ZF) receiver It is ... section, joint space-time-frequency spreading is proposed for the downlink of an openloop multi-user system employing single-user MIMO (SU -MIMO) system based on OFDMCDMA system A MIMO OFDM channel...
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