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首页> 外文学位 >Energy comparison of under floor air distribution heating ventilation and air conditioning systems in office buildings.
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Energy comparison of under floor air distribution heating ventilation and air conditioning systems in office buildings.

机译：办公楼地下空气分配采暖通风和空调系统的能量比较。

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摘要

The purpose of this paper is to compare energy consumption with under floor air distribution systems for office buildings, specifically a call center application.; The building being modeled will have an HVAC system that utilizes an underfloor air distribution system (UFAD). This type of system allows air to be introduced into the plenum space under the floor. The air comes up through the floor into the space through plenum space pressurization. The air is then taken out of the space up high and returned back to the air handling unit.; The three systems reviewed for delivery of the air to the underfloor system (comparing energy consumption on the UFAD systems) are roof top units (RTU) with full economizers, boilers and chillers and a ground source heat pump (GSHP). These systems are being modeled as a heating and cooling plant for the UFAD system. The first costs as well as the energy consumption have been analyzed to determine simple paybacks from system to system listed above.; It was calculated that the RTU has the lowest initial cost at {dollar}1,492,049, the boiler/chiller was next at {dollar}1,769,069 and the highest cost system was the GSHP at {dollar}2,700,002. The systems energy cost per year were calculated to be; RTU - {dollar}77,440, boiler/chiller - {dollar}46,782 and GSHP - {dollar}8,557. The system paybacks from the RTU versus the boiler/chiller were 9 years, the RTU versus the GSHP was 17.4 years and the boiler/chiller versus the GSHP was 24 years.
机译：本文的目的是将能耗与办公楼地下空气分配系统（特别是呼叫中心应用）进行比较。被建模的建筑物将具有一个采用地板空气分配系统（UFAD）的HVAC系统。这种类型的系统允许将空气引入地板下的通风空间。空气通过增压空间从地板上升进入空间。然后，将空气从较高的空间中抽出，并返回到空气处理单元。为将空气输送到地板系统（与UFAD系统的能耗进行比较）而进行审查的三个系统是带有完整的省煤器，锅炉和冷却器以及地源热泵（GSHP）的屋顶单元（RTU）。这些系统被建模为UFAD系统的加热和冷却设备。已经分析了第一笔成本以及能源消耗，以确定从上面列出的系统到系统的简单回报。经计算，RTU的初始成本最低，为1 490 049美元，其次是锅炉/冷水机，价格为1 769 069美元，而成本最高的系统是GSHP，价格为2 700 002美元。每年的系统能源成本经计算为： RTU-{$ 74,440，锅炉/冷却器-$ 46,782，GSHP-$ 8,557。 RTU对锅炉/冷水机的系统投资回收期为9年，RTU对GSHP的为17.4年，锅炉/制冷机对GSHP的为24年。

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  • 作者

    Giles, Jonathon Richard.;

  • 作者单位

    Iowa State University.$bMechanical Engineering.;

  • 授予单位 Iowa State University.$bMechanical Engineering.;
  • 学科 Engineering Mechanical.
  • 学位 M.S.
  • 年度 2008
  • 页码 69 p.
  • 总页数 69
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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