Comfort Calculation Model The air temperature, humidity, and wind speed on the body surface of an automobile air-conditioned room all have an impact on the comfort of the human body. As an evaluation criterion of the human body comfort level, it should be a comprehensive parameter. Authoritative departments at home and abroad have already done experimental research on this, and provided a graph of the relationship between human comfort and ambient temperature, humidity, and wind speed. In order to finally use the comfort index to evaluate the performance of the air conditioning system, it is necessary to determine the relationship between the comfort and the environmental parameters in a computational model. Regardless of the impact of the performance of automotive air conditioning and refrigeration systems, the outdoor environmental conditions and the vehicle operating speed are constant. Under the condition of constant indoor vehicle thermal load, the vehicle interior and exterior flow field and temperature field calculation model can achieve the following functions: The structural parameters of the vehicle in the structural model database are calculated. The distribution and temperature difference of the air distribution within the unmanned area, and the change rule of the air temperature field and flow field in the vehicle when the return air outlet position parameters, the shape of the air supply outlet, the size, and the cabin are changed.
The rational distribution of the flow field and temperature field in the vehicle is the ultimate goal of the operation of the automotive air-conditioning system. Different models have different flow fields, temperature field distribution, and thermal loads. Therefore, different air conditioning and refrigeration systems need to be selected, and the actual operation of the air-conditioning and refrigeration system The performance also directly influences the distribution of the indoor flow field and temperature field by the actual air supply volume, air supply temperature, and other parameters. Therefore, the two are closely linked and affect each other. The evaporator air supply parameter and the indoor air return parameter are The two sets of data are the data between the air conditioning system and the car room. In the air-conditioning system design stage, there is no problem of two-way communication between the two sets of data, as long as the two parameters of the evaporator air supply parameters and the indoor air return parameters satisfying the thermal comfort of the vehicle interior are sent to the air-conditioning system design. The software can then design the air conditioning system. When the performance verification of the air conditioning system can meet the requirements of comfort air supply, there are two-way communication problems between the two parameters of the evaporator air supply parameter and the indoor air return parameter.
It includes EA type and EA-A type.
Round Sling
Round sling is an all-purpose lifting sling, which is both high strong and non-damaging to its load. Extremely light in weight and infinitely flexible in all directions, it is easy and quick to manipulate even when awkwardly shaped or fragile loads are being lifted. Manufactured to EN 1492-2.
Description:
Round slings` max load is 300 tons .It`s effective length is 80m and safety factor is 7 and 6. Made of high-strength polyester filament(100% PES),round webbing slings adopts neutral loop structure in its core and 100% PES sleeve to protect it .
It is very easy to maintain webbing slings. It is very popular to cause damage in hoisting operation due to bump. EA-A webbing slings can absorb impact and turn danger into safety.
If Webbing Sling is damaged seriously, its protective sleeve is broken and its core is undamaged. If its core filament is broken, it will be found through through protective sleeve.
If there appears small cut on sleeve ,can use adhesive tape to cover it to avoid split .Pay attention that only its core is not hurt can you continue to use it .If there appears big cut on sleeve ,they must be checked by our company.
Parameters of EA-A round sling |
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Max.SWL=Mode Coeffcient P×Working Load Limit Max.SWL of lifting method |
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Code |
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Single Max .Working Load Limit |
two-Legs Max.Working Load Limit |
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β |
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Choked |
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0°-7° |
7°-45° |
45°-60° |
45° |
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1.0 |
0.8 |
2 |
1.4 |
1.0 |
0.7 |
1.4 |
1.12 |
1.0 |
0.8 |
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EA-A-01 |
Purple |
1000 |
800 |
2000 |
1400 |
1000 |
700 |
1400 |
1120 |
1000 |
800 |
40 |
1 |
100 |
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EA-A-02 |
Green |
2000 |
1600 |
4000 |
2800 |
2000 |
1400 |
2800 |
2240 |
2000 |
1600 |
50 |
1 |
100 |
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EA-A-03 |
Yellow |
3000 |
2400 |
6000 |
4200 |
3000 |
2100 |
4200 |
3360 |
3000 |
2400 |
60 |
1 |
100 |
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EA-A-04 |
Grey |
4000 |
3200 |
8000 |
5600 |
4000 |
2800 |
5600 |
4480 |
4000 |
3200 |
70 |
1 |
100 |
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EA-A-05 |
Red |
5000 |
4000 |
10000 |
7000 |
5000 |
3500 |
7000 |
5600 |
5000 |
4000 |
75 |
1 |
100 |
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EA-A-06 |
Brown |
6000 |
4800 |
12000 |
8400 |
6000 |
4200 |
8400 |
6720 |
6000 |
4800 |
80 |
1 |
100 |
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EA-A-08 |
Orange |
8000 |
6400 |
16000 |
11200 |
8000 |
5600 |
11200 |
8960 |
8000 |
6400 |
90 |
1 |
100 |
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EA-A-10 |
Orange |
10000 |
8000 |
20000 |
14000 |
10000 |
7000 |
14000 |
11200 |
10000 |
8000 |
100 |
1 |
100 |
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EA-A-12 |
Orange |
12000 |
9600 |
24000 |
16800 |
12000 |
8400 |
16800 |
13440 |
12000 |
9600 |
110 |
1 |
100 |
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EA-A-15 |
Orange |
15000 |
12000 |
40000 |
28000 |
15000 |
14000 |
28000 |
22400 |
15000 |
12000 |
150 |
1 |
100 |
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EA-A-20 |
Orange |
20000 |
16000 |
60000 |
42000 |
20000 |
21000 |
42000 |
33600 |
20000 |
16000 |
180 |
1 |
100 |
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EA-A-25 |
Orange |
25000 |
20000 |
50000 |
35000 |
25000 |
17500 |
35000 |
28000 |
25000 |
20000 |
200 |
1 |
100 |
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EA-A-30 |
Orange |
30000 |
24000 |
60000 |
42000 |
30000 |
21000 |
42000 |
33600 |
30000 |
24000 |
220 |
1 |
100 |
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EA-A-40 |
Orange |
40000 |
32000 |
80000 |
56000 |
40000 |
28000 |
56000 |
44800 |
40000 |
32000 |
250 |
1 |
100 |
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EA-A-50 |
Orange |
50000 |
40000 |
100000 |
70000 |
50000 |
35000 |
70000 |
56000 |
50000 |
40000 |
270 |
1 |
100 |
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EA-A-60 |
Orange |
60000 |
48000 |
120000 |
84000 |
60000 |
42000 |
84000 |
67200 |
60000 |
48000 |
280 |
1 |
100 |
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EA-A-80 |
Orange |
80000 |
64000 |
160000 |
112000 |
80000 |
56000 |
112000 |
89600 |
80000 |
64000 |
300 |
1 |
100 |
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EA-A-100 |
Orange |
100000 |
80000 |
200000 |
140000 |
100000 |
70000 |
140000 |
112000 |
100000 |
80000 |
320 |
1 |
100 |
The unique advantages of round slings:
Material:100% high tenacity polyester
Color: According to EN-1492
W.L.L: 1T-100T
Ply: Single or double
Certificate: Certificate G.S. CE.
1. Especially suitable for loading round objects.
2. The surface of round sling is smooth, does not cause damages to gender objects.
3. Various loading methods, including dragging or pulling loaded object.
4. Even stress can be extend the lifespan of sling.
5. High strength/weight ratio.
6. Anti-abrasion and anti-incision protection sleeve can be attached.
7. Has special label, working load is differentiated by colors according to international standard. Easy to identify even if the sling has been abrased.
8. Light and soft, can be used in small narrow space.
9. Non-electric conductive, no danger of electric stroke,
10. Accord with European Standard EN1492-1: 2000 and China Trade Standard JB/TB521-1997.
11. The elongation of sling≤7%
12. The working temperature range: -40 ℃-100 ℃
Features:
Material:100% high tenacity polyester
Color: According to EN-1492
W.L.L: 1T-100T
Ply: Single or double
Certificate: Certificate G.S. CE.
Packing: PE shrink wrapped, carton and pallet
Round Sling,Round Webbing Sling,Lifting Round Sling,Polyester Round Sling
Hebei Liston Lifting Rigging Manufacturing Co., Ltd. , https://www.liftingriggings.com