2010 Building Science Corporation Expert Session - Mechanical System Selection
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This document summarizes mechanical system selections for several multi-unit residential buildings. It discusses selecting high-efficiency condensing boilers to replace aging central plants at a midrise apartment building. For garden apartments, it recommends replacing furnaces with fan coils served by smaller boiler plants. For another project, it proposes indirect water heaters to replace existing units. The document considers options for heating, ventilation, and domestic hot water and outlines the final selected systems for improved efficiency and durability.
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This presentation discusses HVAC and water systems. It provides an overview of different HVAC system types including single zone, multiple zone, constant volume, and variable air volume systems. It describes key HVAC components such as boilers, chillers, cooling towers, and their functions. The presentation also covers HVAC fundamentals like the refrigeration cycle and psychrometric charts. Source components that provide heating and cooling are defined along with distribution components that convey thermal energy throughout buildings.
boiler
This presentation summarizes information about boilers from Technique Polytechnic Institute's Mechanical Engineering Department. It was presented by a group of 5 students and discusses the definition of a boiler, its basic functions and working principles. It also describes the different parts of boilers like shells, furnaces and chimneys. Key boiler types are summarized, including fire tube boilers like the Cochran boiler and water tube boilers like the Babcock Wilcox boiler. High pressure modern boilers and important boiler accessories and mountings are also highlighted in less than 3 sentences.
Free Heat Pump Hot Water
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Grand Mound Elementary School in Rochester, Washington underwent a complete modernization to upgrade its mechanical and electrical systems while keeping the school operational. The project replaced the split system heat pumps with a new four pipe fan coil unit system heated and chilled by four central boilers and an air cooled chiller. It also included new overhead domestic water lines, mechanical loft spaces, energy efficient lighting and security systems, and a renovated boiler room and water service area. The modernization was completed in February 2004 on budget and on schedule.
IPS_EngVersion
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April Forum: The Hit List - The Top Tips to Green NYC Buildings Part 1 of 3 E...
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Fired heaters are used for heating hydrocarbons fluids in the refineries and petrochemical plants. They are used for high temperature heat transfer. In most fired heaters, we are burning fuel gas as source of heat . There are many heaters in the world where liquid fuel is also burnt in the fired heaters to provide the energy, but their number is decreasing due to tighter pollution laws. Heaters that are processing hydrocarbons services are prone to coking and cracking depending upon the nature of the hydrocarbons being processed. Typically heaters may run length of anywhere from 3 months for coking service to 6 years for different services. Heater designers and operators are always faced with the challenge of providing uniform heat transfer to all the tubes. Engineers use equations that assume uniform heat transfer to heater tubes When designing fired heaters. However, in reality, most fired heaters do not experience uniform heat transfer, and as a result, hot spots develop on the tubes. These hot spots cause coking inside the tubes which requires the heater be shutdown periodically to remove the coke and clean the tubes. Any shutdown to clean the tubes in a fired heater causes a substantial production loss. The owners want to extend the run length of fired heaters. Furnace Improvements has developed a new patented firing technology that provides uniform heat transfer to heater tubes. This technology can be applied to most fired heaters. Our patented technology reorients the burners at a slight angle away from the tubes. We are able to direct the hottest part of the flames and flue gases away from the tubes without affecting the heat transfer in any way. FIS has installed this in 5 heaters ranging from 14 MMBtu/hr. to 280 MMBtu/hr. The clients are experiencing significant reduction in tube metal temperatures. This is translating into lower coking rates and higher tube life. We have been able to increase the capacity of the heaters in most of the cases. In one of the case study that has been presented in this heater, the heater duty was increased from 14 MMBtu/hr. to 21 MMBtu/hr. Inclined firing improves the heat transfer to the tubes and makes in uniform.
steam boilers.pptx
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Energy-Efficient Retrofit Proposal for St.Mary Church Apartments
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This document discusses fire-tube boilers and water-tube boilers. It begins by explaining that steam generators produce steam at desired rates and pressures by burning fuel in a furnace. It then describes that fire-tube boilers have combustion gases pass through tubes surrounded by water, while water-tube boilers have water pass through tubes with combustion gases on the outside. Key differences are that fire-tube boilers can only produce saturated steam up to 18 bars pressure, while water-tube boilers can reach much higher pressures and produce drier steam.
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【业务选择办理准则】
一、工作未确定，回国需先给父母、亲戚朋友看下文凭的情况，办理一份就读学校的毕业证【微信：A575476】文凭即可
二、回国进私企、外企、自己做生意的情况，这些单位是不查询毕业证真伪的，而且国内没有渠道去查询国外文凭的真假，也不需要提供真实教育部认证。鉴于此，办理一份毕业证【微信：A575476】即可
三、进国企，银行，事业单位，考公务员等等，这些单位是必需要提供真实教育部认证的，办理教育部认证所需资料众多且烦琐，所有材料您都必须提供原件，我们凭借丰富的经验，快捷的绿色通道帮您快速整合材料，让您少走弯路。
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
→ 【关于价格问题（保证一手价格）
我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子 我给客户的都是第一手的代理价格，因为我想坦诚对待大家 不想跟大家在价格方面浪费时间
对于老客户或者被老客户介绍过来的朋友，我们都会适当给一些优惠。
选择实体注册公司办理，更放心，更安全！我们的承诺：可来公司面谈，可签订合同，会陪同客户一起到教育部认证窗口递交认证材料，客户在教育部官方认证查询网站查询到认证通过结果后付款，不成功不收费！
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This compilation is ideal for anyone looking to enhance their understanding of innovation management and drive meaningful change within their organization. Whether you aim to improve product development processes, enhance customer experiences, or drive digital transformation, these frameworks offer valuable insights and tools to help you achieve your goals.
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12. Design Sprint Framework
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15. TRIZ Problem-Solving Framework
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17. Stage-Gate Model
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20. Design for Six Sigma (DFSS)
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2010 Building Science Corporation Expert Session - Mechanical System Selection
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