某建筑毛细管辐射空调系统设计及技术经济性分析

论文总字数：25529字

摘 要

随着人民生活水平提高，人们对舒适性以及节能性的要求也随之提高，因此本文对南京市某建筑进行毛细管辐射系统的设计并与传统多联机空调系统和风机盘管系统进行舒适性以及技术经济型对比。

对该建筑进行了负荷计算，计算结果为：总建筑面积为1820.55m²，总需要进行空调设计面积为943.68m²，在制冷季，冷负荷为105.9kW；在供暖季，热负荷为78.2kW。

针对毛细管辐射系统的组成特点，对系统新风量以及新风机组负荷进行了计算，得出每栋楼新风机组的冷负荷分别为24.3kW和33.7kW。毛细管辐射末端承担冷负荷分别为28kW和24.2kW，选用两台制冷量为60kW的风冷热泵机组。论文还进行了辅助设备选型、控制系统的设计以及通风系统进行设计计算；并绘制毛细管系统的施工图纸。

将辐射系统与多联机系统和风机盘管系统比较，辐射空调系统可在10年与8年左右回收初投资。如辐射系统采用推荐的主机系统，即选用可同时制取不同温度冷热水的风冷热泵机组，则辐射系统可在6年和4年左右回收初投资。

论文得到了毛细管辐射空调系统应用在夏热冬冷地区的详细对比数据，可为辐射空调在夏热冬冷地区应用提供参考。

关键词：毛细管辐射系统，负荷计算，设备选型，施工图纸，经济性分析

Abstract

With the improvement of people’s living standards, people’s requirements for comfort and energy-saving are also increasing. Therefore, this paper designs the capillary radiation system for a building in Nanjing and provides comfort with traditional multi-line air-conditioning systems and fan coil systems. Technical and economical comparison.

The load was calculated for the building. The calculation result was that the total construction area was 1,820.55 m², and the total area required for air conditioning design was 943.68 m². In the cooling season, the cooling load was 105.9 kW. In the heating season, the heat load was 78.2 kW.

Based on the composition characteristics of the capillary radiation system, the new air volume of the system and the load of the new fan group were calculated. It was concluded that the cooling load of the new fan unit in each building was 24.3 kW and 33.7 kW, respectively. The capillary radiation end bears cooling loads of 28 kW and 24.2 kW, respectively, and two air-cooled heat pump units with a cooling capacity of 60 kW are used. The paper also conducted the selection of auxiliary equipment, the design of the control system, and the design and calculation of the ventilation system. The construction drawings for the capillary system were also drawn.

Comparing the radiation system with the multi-line system and the fan coil system, the radiation and air conditioning system can recover the initial investment in 10 years and 8 years. If the radiation system adopts the recommended host system, that is, an air-cooled heat pump unit that can simultaneously produce hot and cold water at different temperatures, the radiation system can recover the initial investment in 6 years and 4 years.

The paper has obtained detailed comparison data of capillary radiation air conditioning system applied in hot summer and cold winter regions, which can provide reference for application of radiant air conditioning in hot summer and cold winter areas.

KEY WORDS: Capillary radiation system, Load calculation, Equipment selection, Construction drawings, Economic analysis

目 录

摘 要 I

Abstract II

第一章 绪论 1

1.1课题研究背景及意义 1

1.1.2毛细管辐射系统介绍 1

1.1.3课题研究意义 1

1.2国内外研究现状 2

1.2.1国外研究现状 2

1.2.2国内研究现状 2

1.3本课题研究内容 3

第二章 建筑设计依据 4

2.1建筑概况 4

2.2设计任务及要求 4

2.2.1设计内容 4

2.2.2设计规范及标准 4

2.3设计参数 4

2.3.1室外设计参数 4

2.3.2室内设计参数 5

2.4 围护结构热工指标 5

2.5负荷计算依据 5

2.6 新风量确定 7

2.6.1室内新风量计算 7

2.6.2新风负荷计算 8

2.7 系统负荷汇总 10

2.8 本章小结 11

第三章 辐射系统设备选型 12

3.1 系统介绍 12

3.2 毛细管网辐射末端 12

3.3新风系统设计 13

3.3.1新风系统 13

3.3.2新风状态参数确定 14

3.4冷、热源热泵机组 16

3.5末端水系统 17

3.6板式换热器 17

3.7二次侧循环泵 17

3.8膨胀罐 18

3.9控制系统 19

3.10 管道保温 19

3.11 本章小结 19

第四章 辐射系统水力计算 20

4.1 水力计算依据 20

4.2 计算实例 22

4.3 本章小结 23

第五章 系统对比分析及优化 24

5.1原理及舒适度对比 24

5.1.1系统原理 24

5.1.2舒适性对比 24

5.2对比方案概述及设备费用计算 25

5.3设备安装与维护经济性对比 28

5.4运行经济性分析 29

5.5 本章小结 31

第六章 结论与展望 32

6.1研究结论与成果 32

6.2不足与展望 33

致谢 34

参考文献 35

第一章 绪论

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