The Study of Air-Cooled Condenser (ACC) Under Wind Velocity and Environmental Temperature Conditions

Author(s):  
Masoud Darbandi ◽  
Ali Behrouzifar ◽  
Hossein Salemkar ◽  
G E. Schneider
1944 ◽  
Vol 79 (1) ◽  
pp. 41-43 ◽  
Author(s):  
Vicente Moragues ◽  
Henry Pinkerton

Murine typhus rickettsiae injected intraperitoneally in mice of the dba strain caused a uniformly fatal rickettsial peritonitis if the animals were kept at a room temperature ranging from 65–73°F. or from 70–80°F. With an environmental temperature range of 85–98°F., a mortality of less than 25 per cent was observed. By utilizing different strains of mice and controlling the environmental temperature, conditions may be created under which murine typhus will have any desired degree of mortality. Such conditions have obvious advantages for the evaluation of therapeutic measures in typhus infection.


1996 ◽  
Vol 12 (2) ◽  
pp. 258-268 ◽  
Author(s):  
Hiroshi Kinoshita ◽  
Barry T. Bates

The purpose of this study was to investigate the effects of environmental temperature conditions and running duration on the mechanical property changes of shoes having ethylene vinyl acetate (EVA) midsoles. Midsole temperature changes were obtained for a series of 40-min runs (2 subjects, 7 runs) under various seasonal environmental temperature conditions (winter 5–15 °C, summer 45–55 °C) for a normal shoe (35 durometers, Shore A). Midsole temperatures increased an average of 8 °C during the initial 15–20 min of running and were followed by relatively constant temperatures. Subsequently, the mechanical properties of soft (25 durometers), moderate (35 durometers), and firm (41 durometers) midsole shoes were evaluated using an impact tester over similar temperature ranges. With increasing temperature, peak deceleration and energy absorption decreased, and the times to peak deceleration and peak deformation increased. The results suggest that ordinary running shoes with moderate midsole hardness probably provide inadequate cushioning in cold environments and inadequate rearfoot control in hot environments.


2011 ◽  
Vol 175-176 ◽  
pp. 529-533
Author(s):  
Kai Yang ◽  
Ming Li Jiao ◽  
Ying Xiong ◽  
Wei Yuan Zhang

Moisture handling property of fabric has been regarded as a major factor in the comfort performance of clothing in normal use. Especially in different environmental temperature conditions, fabric’s moisture comfort property has different manifestation. In this paper, a series of experiments and analyses were performed on studying the dynamic moisture transferring procedure and evaluating moisture comfort property of fabric under different environmental temperature conditions. By Textile-Microclimate Measuring Instrument, five different fiber fabrics’ dynamic experiments were performed in different environmental temperature conditions. By measuring the real time changes of relative humidity in inner and outer surfaces of test fabrics, fabrics’ dynamic comprehensive index was obtained to characterize fabrics’ dynamic moisture comfort property under different temperature conditions. Finally, grey system theory was introduced to establish models that could describe the relationship between the static parameters and the dynamic comprehensive index. The grey interrelationship analysis was performed firstly to find out the static parameters that have high degree of association with dynamic comprehensive index. And then the grey mathematics modeling method was performed to establish models predicting the dynamic comprehensive index using static parameters. In three different temperature conditions, three different prediction models were built and high predictive precision was obtained.


1967 ◽  
Vol 20 (1) ◽  
pp. 265 ◽  
Author(s):  
BJ Rigby ◽  
P Mason

The shrinkage temperature (Ts) in 0'9% saline of the collagen of a number of marine and terrestrial gastropods living in a wide range of temperature conditions has been examined and found to correlate with the environmental temperature of the source, i.e. the higher this environmental temperature the higher is Ts.


1965 ◽  
Vol 20 (2) ◽  
pp. 283-287 ◽  
Author(s):  
N. B. Strydom ◽  
C. H. Wyndham ◽  
C. G. Williams ◽  
J. F. Morrison ◽  
G. A. G. Bredell ◽  
...  

Fifty-two groups of about 20 men each were exposed for 5 hr to various combinations of work rate, environmental temperature, and wind velocity. Hourly observations were made of oxygen intake and oral and rectal temperatures. Oral/rectal temperature differences increased significantly with time only under those conditions where steady-state responses were not achieved. Increasing wind velocity from 50 to 400 cm/sec, raising air temperatures from 27 to 36 C, and combinations of these factors had no significant influence on the difference between the recorded temperatures. The main contributing factor to oral/rectal temperature difference is work rate. Increasing energy consumption from 2.5 to 9.0 Cal/min resulted in a rectilinear increase in average difference from 0.5 to 1.1 C. A warning is expressed against the indiscriminate use of oral temperatures in work and heat studies influence of work and heat stress on oral/rectal temperature differences; oral versus rectal temperatures Submitted on May 18, 1964


2020 ◽  
pp. 354-363
Author(s):  
Nadim Chishty ◽  
Narayan Lal Choudhary

Long-billed vulture is warm-blooded and they regulate body temperature by solar radiation. Thermoregulatory behaviour plays an important role for organism survival and its fitness. It also plays a major role in removal of ectozoons, cleaning of body and feathers, elimination of sand particles, wing flexibility and is also helpful in long distance flight. Maximum thermoregulation time recorded in winter were (680±95.65) and minimum were (516.07 ±68.66) seconds in summer in per day. Maximum thermoregulation time’s record in winter was due to low environmental temperature, high humidity and low wind velocity. In winter maximum average temperature was (27.12±2.88°C) and minimum was (8.63±3.03°C), while thermoregulation time minimum recorded in summer due to high environmental temperature. In summer season maximum average temperature was recorded (39.34± 2.10°C) and minimum was (23.08±4.49°C). Thermoregulation is influenced by various ecological parameters like- temperature, rain, sunshine period, wind velocity and cloudy weather. Thermoregulatory times reduced when environmental temperature increased. In summer long billed vulture protect nestling from direct sunlight.


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