人防工程自然通风量的测定

人防工程自然通风量的测定哈尔滨市地下建筑设计院何庆云早期人防工程无论是地道式或是附建式人防地下室，都充分考虑自然通风的条件，以期节约能源和投资。为了利用和改造人防工程，一个先决条件要看其通风量是否能满足人们要求。这就要首先测定自然通风量。目前普遍采用...     

空调工程节能

本文阐述了空调工程设计中应从那些方面考虑节能，包括空调系统冷（热）负荷的确定、冷热源的选择、风系统设计、水系统设计、采用冰蓄冷系统等方面，本文卑供有关人员参考。     

纺织空调系统的节能分析

本文在分析空调系统的能耗基础上,提出了空调系统节能的途径。     

用友软件园地源热泵 冰蓄冷空调系统工程竣工

用友软件园地源热泵冰蓄冷空调系统工程竣工仪式2007年3月22日在用友软件园举行。     

人防工程主体结构加固方法探讨

针对我国人防工程在和平时期满足人民正常的生活生产,在战时为防御外敌的袭击需加固的特性,通过有限元方法探讨了人防工程经后加柱加固后的受力性能。分析结果表明,后加柱加固后的人防工程其承载力得到了明显的改善。由此可知,通过人防工程后加柱加固方法提高结构的防御能力是可行的     

冰蓄冷空调系统的评价方法

本文分析了影响冻蓄冷空调经济效益和社会效益的因素，建立了一个评价冰蓄冷空调经济性的模型，归纳出评价冰蓄冷空调系统社会效益和经济效益的五项指标，高峰用转移率，蓄冷率，制冷机容量变化率，性能系数降低率，增加投资回收年限。     

可变冷媒流量空调系统设计探讨

作者在多年从事设计工作的基础上,讨论了可变冷媒流量空调系统设计中需引起注意的几个问题。并总结了系统设计中的一些经验。     

Influence of different outdoor design conditions on design cooling load and design capacities of air conditioning equipments

Outdoor design conditions are important parameters for energy efficiency of buildings. The result of incorrect selection of outdoor design conditions can be dramatic in view of comfort and energy consumption. In this study, the influence of different outdoor design conditions on air conditioning systems is investigated. For this purpose, cooling loads and capacities of air conditioning equipments for a sample building located in Adana, Turkey are calculated using different outdoor design conditions recommended by ASHRAE, the current design data used in Turkey and the daily maximum dry and wet bulb temperatures of July 21st, which is generally accepted as the design day. The cooling coil capacities obtained from the different outdoor design conditions considered in this study are compared with each other. The cost analysis of air conditioning systems is also performed. It is seen that the selection of outdoor design conditions is a very critical step in calculation of the building cooling loads and design capacities of air conditioning equipments.     

隔离病房通风空调设计研究现状

调研国内外隔离病房通风空调设计研究相关文献,归纳总结目前隔离病房通风空调设计在隔离病房的位置、气流组织形式、换气次数、负压设计、设置缓冲室等方面已有的设计研究成果,针对不同性质的隔离病房提出相应的设计方案。     

户式中央空调水系统设计和施工问题

介绍常用户式中央空调系统的种类及户式中央空调水系统对设计提出的要求及施工中对空调水系统的影响.     

Analysis of cool storage for air conditioning

The paper investigates the thermal performance of ice-water cool storage systems theoretically and experimentally. Cool storage systems are used to shift electric demand from periods of high demand to those of low demand. A general lump model to determine the thermal storage characteristics is developed. The solution of the system equations is found through a Laplace transformation method. Experimental data of temperature profiles obtained for both single container and packet containers under the conditions of various flow rates and different inlet coolant temperatures confirm the validity of the theory. A closed form solution of the required time for latent-heat storage has also been established on the basis of the quasi-steady-state assumption of the coolant.     

水蓄冷在空调节能设计中的应用

通过一工程实例说明了水蓄冷在空调设计中的应用。并通过水蓄冷方案与常规空调方案的设备初投资、运行电费、电网移峰等方面分析比较,证明水蓄冷具有初投资低、运行费用低和能有效实现电网的削峰填谷等特点,是空调节能设计的有力手段。     

高层建筑空调节能设计的探讨

指出了空调系统耗能的两个方面，介绍了空调系统设计的几个节能措施，如合理降低室内温度湿度标准、控制与正确利用室外新风量等。     

Modeling the design and performance characteristics of solar steam-jet cooling for comfort air conditioning

A detailed mathematical model describing the performance of low-pressure low-temperature solar steam-jet cooling cycles for comfort air conditioning is presented in this paper. The model is based on the analysis of the cycle performance together with the supersonic flow conditions in the convergent divergent nozzle and the preceding supersonic and subsonic diffusers. The sets of simultaneous equations resulting from the model together with a subroutine providing numerical values of the thermodynamic properties of steam formulated a computer simulation program. The simulation program analyzes the performance of the solar steam-jet cooling system under different design and operating conditions. A set of design charts for the solar steam-jet cooling cycle and for the selection of the ejector dimensions were constructed. Finally, conclusions on the design considerations and limitations as well as the off design performance are discussed.     

中央空调系统变频节能改造分析

在阐述变频技术节能原理的基础上,结合北京某商贸大厦中央空调系统变频节能改造的实践,进行了效益分析。改造实践证明,对中央空调系统进行冷(热)水循环水泵及冷却水循环水泵变频改造效益明显,改造投资可以在1年左右收回,具有投资前景。