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⑴ outdoor air conditioning and ventilation calculation parameters in Table 1:
the unit buildings with a certain type of exemplar 3

the construction of a development group located in the Beijing park, a second phase project construction area 450,000 square meters, all buildings to single-family-style office building, the environment, high grade, good independence between the various buildings, area by flexibility, applicability, is the ideal office space, developers will be its location in the the headquarters of major companies based in China. In which a total construction area of ​​20 square meters, from 83 ten-storey buildings. × × buildings at the design research process, found that frequent a customer needs air conditioning to work overtime, the entire building's air conditioning system, air conditioning cooling systems put into operation all the circumstances, despite the staff on duty, but only on the pump power consumption can be imagined. Moreover, frequent users and property disputes because of air conditioning problems, sometimes causing difficulties in the property management fees. To this end, the developer would like to find a suitable single-family-style office building, an area can be flexibly divided into air-conditioning, individual temperature control can be divided into regional and central air-conditioning mode metering and charging. After several rounds of multi-party research, demonstration, comparison, and ultimately the digital household central air conditioning system as air-conditioning system design of the project one of the options.
at the time, such a large area of ​​separate central air conditioning system so that users of office buildings in the northern region is also unusual, as the north, and some construction equipment in heating insulation freezing problem, a single users central air-conditioning design for greater risk of winter heating, as a designer, whether in the design of the program can be the beginning of the normal heating in winter and equipment, pipes will freeze and no issue too big to grasp. For insurance purposes, other than the proposed building to strengthen the maintenance of the structure of the thermal insulation properties, but also especially for the bathroom, the well pipe and pipe insulation freezing measures taken to avoid the occurrence of unexpected winter.
name of the room floor area of ​​the room number of the machine capacity models sets a layer of industrial space system configuration m2W/m2W 186.00AVMLH140118835, 00022HP (1 -1) 1-1-1 1-1-2 1-1-3AVMLH1052 industrial space 186.00AVMLH140118835 ,0002-1-1 2-1-2 2-1-3AVMLH1052 industrial space 186.00AVMLH140118835, 00014HP (1-2 ) 1-2-1 1-2-2 1-2-3AVMLH1052 Subtotal 372.00918870,000 two-story industrial buildings 186.00AVMLH105316931,[link widoczny dla zalogowanych], 50022HP (2-1) 1-1-4 1-1-5 1-1-6 Industrial space 183.00AVMLH105317231 ,5002-1-4 2-1-5 2-1-6 industry space 183.00AVMLH105317231, 50010HP (2-2) 2-2-1 2-2-2 2-2-3 Subtotal 369.00917163,000 three industrial buildings 215.00AVMLH140217938, 50026HP (3-1) 3-1-1 3-1-2 3-1-3AVMLH1051 industrial space 215.00AVMLH140217938 ,5004-1-1 4-1-2 4 - 1-3AVMLH1051 industrial space 215.00AVMLH140217938, 50014HP (3-2) 3-2-1 3-2-2 3-2-3AVMLH1051 Subtotal 430.00917977,000 four industrial buildings 215.00AVMLH140217938, 50026HP (4-1) 3 -1-4 3-1-5 3-1-6AVMLH1051 industrial space 215.00AVMLH140217938 ,5004-1-4 4-1-5 4-1-6AVMLH1051 industrial space 215.00AVMLH140217938, 50014HP (4-2) 4-2 -1 4-2-2 4-2-3AVMLH1051 Subtotal 430.00917977,[link widoczny dla zalogowanych],000 five industrial buildings 215.00AVMLH140217938, 50026HP (5-1) 5-1-1 5-1-2 5-1-3AVMLH1051 industrial space 215.00 AVMLH140217938 ,5006-1-1 6-1-2 6-1-3AVMLH1051 industrial space 215.00AVMLH140217938, 50014HP (5-2) 5-2-1 5-2-2 5-2-3AVMLH1051 Subtotal 430.00917977,000 Six layer industrial space 215.00AVMLH140217938, 50026HP (6-1) 5-1-4 5-1-5 5-1-6AVMLH1051 industrial space 215.00AVMLH140217938 ,5006-1-4 6-1-5 6-1-6AVMLH1051 Industry space 215.00AVMLH140217938, 50014HP (6-2) 6-2-1 6-2-2 6-2-3AVMLH1051 Subtotal 430.00917977,000 seven industrial buildings 215.00AVMLH140217938, 50010HP (7-1) 7-1-1 7-1-2AVMLH10516HP (7-2) 7-2-1 industrial space 215.00AVMLH140217938, 50010HP (7-3) 7-3-1 7-3-2AVMLH10516HP (7-4) 7-4-1 industrial space 215.00AVMLH140217938, 50014HP (7-5) 7-5-1 7-5-2 7-5-3AVMLH1051 Subtotal 430.00917977,000 Total 2,89163179518,000

3 air conditioning system

be noted that, in the configuration indoor unit should be indoor unit in accordance with the cold, hot cold maximum output and buildings, heat load values ​​compared to maximum value as the basis for optional units, in particular, residential central air-conditioning should also be noted that the winter heating condition defrosting inverse operation When cleaning the decrease in temperature caused by heating effect. Indoor unit according to the nature and use of the building in accordance with the host 50 to 110% the number of indoor unit capacity configuration. The works were set 509 different models of outdoor units, indoor units of different types of 1929 units, while also using the full replacement for fresh air heat exchanger air more than 1,200 units. A project was the end of 2003 to April 2004 completed one after another, many users are already settled in the base, results from the use of air conditioning systems perspective, which addresses the issue of fees, but also solve the parameters of the different users of the city Needs and achieved very good results, all parties were satisfied. Fang decided to build two 250,000 square meters building, continue to use this air conditioning system.
Solar Energy Technology Development in 20th Century Retrospect and Prospect


Abstract: According to records, use of solar energy has 3,000 years of human history. Solar power as an energy and make use of, only 300 years of history. The real solar energy as Of the 20th century, 70 years, solar technology advances, solar energy with each passing day. Review and summarize the development of this century, the history of solar energy, solar energy on the development of the 21st century is very meaningful, this paper attempts were made. Chinese papers League finishing.

Parameters of the outdoor air conditioning and ventilation projects project parameters in Table 1 parameter calculation of the summer air conditioning air dry bulb temperature 33.2 ℃ 30.0 ℃ calculated air dry bulb temperature wet bulb temperature of 26.4 ℃ calculate average wind speed of 1.9m / s average daily air temperature of 28.6 ℃ calculated atmospheric pressure 99.86Kpa winter wind N air dry bulb temperature -12.0 calculation ℃ heating calculated air dry bulb temperature -9.0 ℃ relative humidity of 45% of the calculated ventilation calculation of dry bulb temperature -5.0 ℃ atmospheric pressure 102.04Kpa average wind speed 2.8m / s wind direction NNW

2 Project Overview and air conditioning system design to determine
first phase of the buildings there were 83 buildings, four Louxing, more than 10 units, due to floor, facing different, each room is not the same cooling and heating loads (average maximum cooling load per unit area is 146w/m2, heat load for the 130 w/m2). Taking into account the room heating, cooling effect and temperature vertical speed, here to match the load value selection of equipment that the unit of selection matching.


the user to select the digital household variable refrigerant flow multi-linked air conditioning system, by using a digital pulse width modulating control technology, variable capacity compressor and the outdoor unit can be individually controlled multiple composition of the indoor unit, indoor unit can also be at 50% to 110% of the outdoor unit is equipped with flexible capacity, a new generation of modular,[link widoczny dla zalogowanych], intensive multi-line System (DVM). The largest air-conditioning refrigerant pipe length of up to 150 meters, outdoor and indoor unit height difference of up to 50 meters, the outdoor unit can be placed to solve the problem. The height difference between the indoor unit can reach 15 meters, fully dispersed within a larger space to meet the air conditioning. The air conditioning system can be both cooling and heating, installation and maintenance is simple, flexible, without any electromagnetic interference, applicable to many places, especially digital scroll compressor technology allows 10% to 100% of the capacity range to achieve stepless operation, the compressor energy consumption lower than 40% of comprehensive energy consumption to achieve the entire range of stepless operation,[link widoczny dla zalogowanych], with excellent seasonal energy consumption, especially for the larger building load changes, in full compliance with energy saving design specification of the equipment.
⑶ air conditioning equipment selection



Keywords: solar energy development review process
2 room interior design exemplar of the name parameter indoor temperature ℃ Relative humidity% fresh air m3 / h · who exhaust the amount of time / h interior noise standard winter, summer, winter, summer, the Office of NR 24 ~ 2620 ~ 2230/30 ~ 40 24 ~ 2620 ~ Personal Office Room 25 ~ 2718 2240 ~ 2040/30 ~ 40 Toilet / 16 ~ 18 / / 6 /
household air conditioning, also known as residential central air conditioning, the scientific name is China. Many types of household air conditioning points, the most commonly used is the air source heat pump system. Since the system has the design and construction of simple, flexible control, metering and charging easy, and many other advantages of high-grade, fast development in China not only be used for senior housing and villas, as well as a considerable part be used for commercial and office building, far beyond the air-conditioning system of the
recent years, office space market rapid growth, many companies, enterprises have moved into office space office, so office space in the property management industry has become very prosperous, more attention to the running costs of the assessment unit accounting, the operation of the whole building had to consider the overall cost problem.

within the high-grade office buildings generally based on open-style design of large space, often use more large central air-conditioning system, but the rental office, the area of ​​need in accordance with the requirements of users re-segmentation. As a result of use of the area occupied by different units, and relatively independent, it is difficult to ensure that users can control the air conditioning in a single unit, together with units of residency at the time of routine office model, office hours, ambient temperature requirements Dengjun different management and control of central air conditioning system, it is very difficult. Therefore, we must update the traditional design concepts,[link widoczny dla zalogowanych], breaking the high-grade office buildings will use the concept of large central air-conditioning, closely around the use of high-grade office functions and features, tailored, custom writing suitable for high-grade office building air-conditioning system in the form.

1 Introduction
⑵ interior design parameters in Table 2:
this paper, a development located in the Architectural Design of the office park, for example, allows users to type of central air conditioning systems of office buildings analysis, describes household air conditioning systems in office buildings in writing the advantages and in the design, construction should pay attention to issues for the future design of residential central air conditioning when the reference. More articles related to topics：


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