【正文】 面部分，我們已經(jīng)簡(jiǎn)要介紹了整個(gè)THIC系統(tǒng)的布局。尤其是在大空間中作為一個(gè)極其重要的設(shè)計(jì)原則的分層的空調(diào)系統(tǒng)，被選作門(mén)廳的空調(diào)設(shè)計(jì)，正如圖2所示。詳細(xì)地說(shuō)，在被占據(jù)的空間里（高度不超過(guò)2米），℃的冷卻水通過(guò)水泵輸送到輻射采暖地板進(jìn)行降溫，被處理過(guò)的干新鮮空氣和室內(nèi)廢氣分別從整個(gè)空間的底部進(jìn)入，從中間排出。這樣就形成了一個(gè)“干空氣層”來(lái)避免較冷的地板表面有水蒸氣凝結(jié)。在遠(yuǎn)離被占據(jù)區(qū)域的較高空間，從玻璃屏進(jìn)入的太陽(yáng)輻射被裝飾物吸收，然后熱量就從百葉窗等自然通風(fēng)設(shè)備排出了。溫度控制子系統(tǒng)和濕度控制子系統(tǒng)可以根據(jù)周圍環(huán)境狀況和室內(nèi)要求分別進(jìn)行控制。這兩個(gè)子系統(tǒng)在濕熱的氣候都要工作；在濕冷的氣候下，只有濕度控制子系統(tǒng)要工作；當(dāng)外界空氣足夠干的時(shí)候，比如11g/kg，外界的空氣將過(guò)濾后直接進(jìn)入大樓。據(jù)我們所知，冷卻空氣比通過(guò)冷凝給空氣除濕要容易得多，因?yàn)楹笳咝枰睦湓吹臏囟缺惹罢叩偷枚?。但是，在目前的THIC系統(tǒng)中，被測(cè)的溫度控制子系統(tǒng)的COP卻低于或等于濕度控制子系統(tǒng)的COP。因此，本部分將著力解決如何改善溫度控制子系統(tǒng)的工作效果。根據(jù)表4中所示的溫度控制子系統(tǒng)中的每個(gè)元件的工作情況，我們推薦三個(gè)對(duì)溫度控制子系統(tǒng)進(jìn)行改進(jìn)的主要方案：（1）對(duì)冷卻水泵的頻率進(jìn)行修改；（2）收緊帶子，提升冷卻塔的工作狀況。（3）在干燥的工作環(huán)境下，提升FCU的工作狀況。前兩個(gè)方案很容易在建筑內(nèi)實(shí)現(xiàn)，而第三個(gè)的實(shí)現(xiàn)難度取決于新的FCU產(chǎn)品?？偨Y(jié)一下，本文論述了深圳的一個(gè)辦公大樓的THIC系統(tǒng)的工作情況。液態(tài)干燥劑新鮮空氣裝置用來(lái)提供干的新鮮空氣，以對(duì)室內(nèi)的濕度進(jìn)行調(diào)節(jié)。℃的冷卻水通過(guò)水泵輸送到輻射面板和干風(fēng)扇線圈來(lái)控制室內(nèi)溫度。一下是根據(jù)測(cè)試結(jié)果得出的結(jié)論：（1） THIC系統(tǒng)能提供一個(gè)舒適的室內(nèi)環(huán)境，使得室內(nèi)溫度、濕度比例和二氧化碳濃度都在令人舒適的范圍內(nèi)。（2） 。在測(cè)試的辦公大樓中，(m2 yr)，這也就是說(shuō)，能源使用效率比傳統(tǒng)的空調(diào)系統(tǒng)高得多。（3） 我們提出了溫度控制子系統(tǒng)的一些改進(jìn)方法，包括對(duì)冷卻水泵、冷卻塔和FCU的改進(jìn)。因此，這與當(dāng)前使用的空調(diào)設(shè)備相比可以節(jié)省9%的能耗。2 英文原文Performance of temperature and humidity independent control airconditioning system in an office buildingIn the conventional HVAC system that removes moisture by condensation, air is cooled and dehumidified simultaneously. In most cases, sensible load of building covers the majority part of the whole cooling load while the latent load (moisture load) takes only a small part. However, as the required cooling source temperature of dehumidification is much lower than that of cooling, the chilled water temperature has to be reduced to meet the demand for condensation dehumidification. Moreover, the ratio of sensible load to latent load varies largely due to the changes of outdoor climate, number variance of indoor occupants, indoor equipments and lighting utilization mode and so on. Therefore, the indoor temperature and humidity, the two key parameters, can hardly be satisfied with condensation by the cooling coil only. In practice, the mon reaction to the increased humidity is to reduce the setpoint temperature and then recondition the air after passing the cooling coil to the proper temperature, which results in a plenty of energy wastefulness. To avoid the aforementioned problems, temperature and humidity independent control (THIC) airconditioning system stands out as an appropriate pattern that temperature and humidity can be regulated independently with temperature control subsystem and humidity control subsystem respectively. Besides, the coil temperature for cooling in the temperature control subsystem can be considerably increased, . from current 7 ?C to 17?C, so that improvement on the performance of chillers or even free cooling from ambient could be obtained. Many investigations have been carried out on the hybrid desiccant dehumidification and airconditioning system, which integrates liquid/solid desiccant units with a conventional cooling system to avoid excess cooling. Liquid desiccant units developed quickly in recent years, for its advantages of dehumidifying at a temperature higher than the air’s dewpoint to avoid reheat procedure in the system, and regenerating desiccant at a low temperature which can be driven by lowgrade heat sources [5,6].Many studies focusing on improving its performance with process optimization have been conducted in depth, such as Yadav [7], DryKor Ltd. [8], and Liu et al. [9]. Chen et al. [10] designed an independent dehumidification airconditioning system with a hot waterdriven liquid desiccant and a chiller that provides 18–21 ?C chilled water for an office building in Beijing, which saved about 30% cooling cost pared with conventional system. The performance of a hybrid system tested by Ma et al. [11] was % higher than conventional vapor pression system at a latent load of 30% and this improving could be achieved by % at a 42% latent load. Besides, the specific research on the feasibility and performance of the hybrid system in hot and humid regions is promoted.This paper will investigate the real operating performance of a THIC airconditioning system operated in an office building located in Shenzhen, a modern metropolis in southern China of hot and humid climate. In this THIC system, the liquid desiccant fresh air handling units driven by heat pumps are employed to handlethe outdoor air to remove the entire latent load and supply enough fresh air to the occupied spaces, and the hightemperature chiller that produces chilled water of ?C for the indoor terminal devices (radiant panels and dry fan coil units) is applied to control indoor temperature. The operating principle and performance test results of the THIC system will be shown in this paper, and suggestion for performance improvement will also be included. The THIC system has been put into practice as a pilot project in an office building in Shenzhen, China. This system has been brought into operation in July 2008 and the basic information about the building and airconditioning system goes as follows. The 5story office building, as shown in Fig. 1, is located in Shenzhen, China, with total building area of 21,960m2 and the areas of 5940m2, 5045m2, 3876m2, 3908m2, 3191m2 for the 1st to 5th floor respectively. The main function of the 1st floor is restaurant, archive and carport, the 2nd to 4th floors are the office rooms, the 5th floor is the meeting room, and there is a vestibule vertically through up the 2nd to 4th floors in the north of the building. In the vestibule, curtain wall with ventilation shutters in the upper is applied on its north surface, as shown in Fig. 2. The outdoor condition in Shenzhen is rather hot and humid all through the year as shown in Fig. 3. The annual outdoor air relative humidity is about 80% and humidity ratio in summer is as high as 20 g/(kg dry air). The building requires cooling and dehumidificationin a long period of time, and no heating and humidification requirement in winter. Therefore, how to handle the moisture efficiently is a key issue in such a subtropical area. The THIC system serves from 1st to 4th floor with the net airco