空调

From this the program named as AFDC/LACS has been compiled with language FORTRAN77 and the calculation on the airflow and distribution of the place mentioned above has been done with several design conditions.

在此基础上，笔者使用FORTRAN77语言编制了名为AFDC/LACS的计算机应用程序，以标准机组段下游侧空调系统为代表，就不同空调设计工况条件进行其分层空调气流组织计算。

Though the A/C automation control system, we can operate, manage, collect the running data and pre-diagnose all the HVAC devices in on single central computer, the computer can communicate with chiller, water pump, cooling tower, piping system and AHU through the DDC.

通过空调自动化系统可以对空调主机、空调末端、水系统、冷却塔等子系统进行监控和管理，通过集散型的控制系统，用户可以实现自己的管理和控制的意图[5]。

The end of 2007, the company works to professional cleaning service to be extended, with mechanical cleaning technology, central air conditioning cleansing purification project, the robot air duct cleaning, washing of the widely used chemicals, petroleum, petrochemical, oil tank, metallurgical, power, Light industry, printing and dyeing, paper making industries such as equipment boiler, heat exchange, condenser, compressor, ammonia cooler, Air Preheater, equipment Jacket, central air conditioning, heating systems portfolio, and large complete sets of equipment, etc.

07年底，公司业务向专业清洗工程服务扩展、拥有机械清洗技术、中央空调清洗净化工程、机器人风管清洗等，清洗范围广泛应用于化工、石油、石油化工、储油罐、冶金、电力、轻工、印染、造纸等行业的设备（锅炉、热换器、冷凝器、空压机、氨冷机、空预器、设备夹套、中央空调、采暖组合系统、大型成套装置等）清洗和中央空调系统的清洗。

Central air conditioning is a major focus for the air-conditioning system in the wind, their control than tank air conditioning system is more complicated.

中央空调是一种大型集中供风的空调系统，其控制系统较之柜式空调更为复杂。

In the end author points out that air-to-water heat pump is worthy of being recommended in Taiyuan market. central air conditioning,air conditioning of variable refrigerant volume,air-line system,air-to-water heat pump

它具有普通分体空调和中央空调的双重优势，在价位的取向上主要是针对较高收入的工薪阶层、私营企业主、高级白领以及其他高收入人群，虽然目前价位相对普通空调要高，但随着我国市场经济的高速发展、人民生活水平的

The main work and the originality points of this dissertation could be concluded as the following parts:(1) To analyze systematically the mathematical model of LES of air flow in great space, under the case of isothermal and non-isothermal, as well as the combined action of buoyancy and strain. Some basic problems are studied about the LES application into airflow simulation of great space, such as boundary conditions, spatial difference scheme and time advancing scheme, time step etc., which creates the basis for the LES application to indoor airflow simulation.(2) Both the instantaneous and time averaged flow field of great space with multiple jets under isothermal and non-isothermal cases are explored with large eddy simulation method, and also discussed the dynamic characteristics and the law of fluidflow in the great space.(3) Based on the results of LES of the great space and the Fanger thermal comfort indexes, it is brought forward the concept of the series of dynamic thermal comfort evaluating indexes, which could be divided into thermal comfort index with time averaged properties PD, PPD, PMV, thermal comfort index with instantaneous properties IPD, IPPD, IPMV, and time averaged thermal comfort indexes TAPD, TAPPD, TAPMV, and transient situations time averaged thermal comfort indexes TTAPD, TTAPPD, TTAPMV. The differences among them and the calculation methods are discussed, and the four kinds of indexes are calculated with the thermal comfort index PD as an example.(4) Based on the LES results it is discussed the hot air stratification phenomena in air-conditioned buildings in the case with air supply and return registers on the ceiling and the case on the sidewall. The fundamentals of the hot air stratification are studied and the relations of estimating hot air stratification are brought forward.(5) With the advanced apparatus such as hot wire film anemometer IFA300 and laser particle field anemoscope, corresponding model test and site measurements have been done, which are compared with the simulation results and LES is proved a very promising method in air flow simulation indoor.

本文主要工作既创新点体现在以下几个方面：(1)系统分析了等温、非等温和考虑剪切力与浮升力综合作用的高大空间大涡模拟数学模型，并研究了高大空间大涡模拟在室内气流仿真应用中的一些基本问题，如边界条件、空间离散格式和时间推进格式、时间步长选择等问题，为大涡模拟在室内气流计算中的广泛应用打下了基础；(2)首次用大涡模拟方法研究了高雷诺数下高大空间多射流在等温、非等温情况下的瞬时流场和时均流场分布，并探讨了多射流流场的动态特性和流动规律；(3)基于大涡模拟的动态仿真结果和Fanger的热舒适指标，首次系统地提出了动态热舒适评价指标体系的概念：即基于时间平均参数的热舒适指标PD、PPD、PMV；基于瞬时参数的瞬时热指标IPD、IPPD、IPMV；基于时间平均热舒适指标TAPD、TAPPD、TAPMV；以及沿行动迹线的时间平均热舒适指标TTAPD、TTAPPD、TTAPMV，并分析了四类热舒适指标的差异性和计算方法，还以PD值为例对四类指标分别进行了计算；(4)基于数十种工况下空调房间大涡模拟的结果，研究了空调建筑上送上回和侧送侧回两种情况下热分层现象，并探讨了热分层的基本规律，首次提出了避免热分层现象的判断公式；(5)在暖通空调领域，首次使用IFA300热线风速仪、激光粒子速度场仪等先进设备，完成了与大涡模拟相对应的模型试验，并把实测结果与仿真结果进行了对比，说明LES在室内气流仿真方面是一种很有前景的方法。

Gives some suggestions for the air conditioning and ventilating system design of chaffy dish restaurant s.

介绍了某火锅餐厅通风空调系统的设计，着重讨论了全新风+热回收方式的应用及系统新风量和空调负荷的计算，对火锅餐饮业的通风空调方式提出了一些建议。

To determine the pipe size for condensing water is a common problem in the air conditioning system design.

针对中央空调系统中的冷凝水管径的正确选取是空调系统设计中普遍遇到的问题，提出了一种简明的计算方法，对于建设方在空调安装工程中降低初投资有一定的参考价值。

In the technology of the mobile air conditioning room,the heat barrier is used to isolate work- ers from the hot environment and the cooling air is supplied for the mobile air-conditioning room by the turbine- typed air cooler whose cooling source and ventilating power come from cooling energy and potential energy stored in the water in constant temperature zone.

矿井移动空调室技术的实质是利用热幛将作业者与环境隔离，再用一种水轮机式空气冷却器向移动空调室内供冷。水轮机式空气冷却器的冷源和通风动力均来自矿井恒温带。通过实验得知：环境温度为32℃时，以1.6 m~3/h的速度供给水温为18℃的冷水启动空气冷却器10 min后，矿井移动空调室内干球温度可降至24℃；空气冷却器停止工作后30 min，矿井移动空调室内的空气温度仍可维持在28℃以下

This design is the Guangzhou lan west 100 markets summer the central air-conditioning system design, the primary mission completes one, two, three, four buildings load computation; Air-conditioning system plan efficient analysis and water unit's shaping; The air-conditioning system freezing stands design; Four buildings shopping area air conditioning unit's shaping, wind system and aqueous system design; Four buildings work area air blower plate tube system design; And has drawn up four winds tubes floor-plan, the wind side chart, the engine room floor-plan, the aqueous system axis side chart.

该下载资料由本站会员上传，如果侵犯了您的权力，请通知我们，将立即删除！摘要本次设计课题是广州市蘭西一百商场夏季中央空调系统设计，主要任务是完成一、二、三、四楼的冷负荷计算；空调系统方案的经济性分析和制冷机组的选型；空调系统冷冻站的设计；四楼购物区空调机组的选型，风系统和水系统的设计；四楼办公区风机盘管系统的设计；并绘制了四层风管平面布置图、风管轴侧图、机房平面布置图，水系统轴侧图。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。