欢迎来到麦多课文档分享! | 帮助中心 海量文档,免费浏览,给你所需,享你所想!
麦多课文档分享
全部分类
  • 标准规范>
  • 教学课件>
  • 考试资料>
  • 办公文档>
  • 学术论文>
  • 行业资料>
  • 易语言源码>
  • ImageVerifierCode 换一换
    首页 麦多课文档分享 > 资源分类 > PDF文档下载
    分享到微信 分享到微博 分享到QQ空间

    ARI GUIDELINE T-2002 Specifying the Thermal Performance of Cool Storage Equipment《冷却存储设备热处理规范》.pdf

    • 资源ID:429484       资源大小:976.12KB        全文页数:16页
    • 资源格式: PDF        下载积分:5000积分
    快捷下载 游客一键下载
    账号登录下载
    微信登录下载
    二维码
    微信扫一扫登录
    下载资源需要5000积分(如需开发票,请勿充值!)
    邮箱/手机:
    温馨提示:
    如需开发票,请勿充值!快捷下载时,用户名和密码都是您填写的邮箱或者手机号,方便查询和重复下载(系统自动生成)。
    如需开发票,请勿充值!如填写123,账号就是123,密码也是123。
    支付方式: 支付宝扫码支付    微信扫码支付   
    验证码:   换一换

    加入VIP,交流精品资源
     
    账号:
    密码:
    验证码:   换一换
      忘记密码?
        
    友情提示
    2、PDF文件下载后,可能会被浏览器默认打开,此种情况可以点击浏览器菜单,保存网页到桌面,就可以正常下载了。
    3、本站不支持迅雷下载,请使用电脑自带的IE浏览器,或者360浏览器、谷歌浏览器下载即可。
    4、本站资源下载后的文档和图纸-无水印,预览文档经过压缩,下载后原文更清晰。
    5、试题试卷类文档,如果标题没有明确说明有答案则都视为没有答案,请知晓。

    ARI GUIDELINE T-2002 Specifying the Thermal Performance of Cool Storage Equipment《冷却存储设备热处理规范》.pdf

    1、2002 GUIDELINE for AIR-CONDITIONING L, I I Storage Deviclet I I I I I I I Temperature of coolant supplied to the Load Temperature of coolant returning from the Load Temperature of coolant entering the Cool Storage Device. Temperature of coolant leaving the Cool Storage Device. Option A, B, C: Mechan

    2、ical or Absorption Refrigeration Equipment (chiller) Figure 1. Cool Storage System Section 4. Classifications 4.1 Classjcation. Thermal Storage Equipment may be broadly classified as either “Sensible“ or “Latent,“ with further delineations as shown in Table 1 and as explained in subsequent paragraph

    3、s. 4.2 Sensible Thermal Storage Equipment. Sensible Thermal Storage Equipment used for cooling is equipment that typically employs water as the storage medium. During the Charge Period, warm water (or other fluid) from the storage device is chilled to the desired temperature by a water chiller and r

    4、eturned to the storage vessel, thereby storing the energy as Sensible Heat. During the Discharge (cooling) Period, the chilled water is pumped from storage to the load and the resultant warm water returned to storage. Any of several methods may be used to keep the warm return water separated from th

    5、e stored chilled water, including separate or compartmentalized tanks or where only one tank is employed, labyrinths, membranes or thermal stratification. 2 Copyright Air-Conditioning and Refrigeration Institute Provided by IHS under license with ARINot for ResaleNo reproduction or networking permit

    6、ted without license from IHS-,-,-AR1 GUIDELINE T - 2002 Type 4.3 Charge Discharge Fluid 1 Fluid Storage Media Classification Water Or Other Fluid Sensible Water or other fluid Water or other fluid Water or other fluid Latent Ice-on-Coil (External Melt) Table 1. Classifications of Cool Storage Equipm

    7、ent I I I Secondary Coolant Water Ice Refrigerant Ice or other Phase Change Material Ice-on-Coil (Internal Melt) Secondary Secondary Coolant Coolant Refrigerant Refrigerant Encapsulated Ice or Phase Change Material Secondary Secondary Coolant Coolant Water Water Ice or other Phase Change Material Ic

    8、e Harvester/ Chiller Water Refrigerant Ice Ice in Secondary Coolant Ice Slurry Latent Thermal Storage Equipment. Latent Thermal cooled as the ice on the coilsplates is Secondary Secondary Coolant Coolant Storage Equipment may be further categorized as Ice-on- Coil, Encapsulated Ice or Phase Change M

    9、aterial, Ice HarvestedChiller or Ice Slurry. Although these devices are referred to as “Latent“ types, some of the stored energy is in the sensible form. 4.3.1 Coil: Ice-on-Coil. There are two types of Ice-on- 4.3.1.1 External Melt. During the Charge Period, a cold Secondary Coolant or refrigerant i

    10、s circulated through the coils/plates causing ice to form on the external surfaces. Much of the liquid in the tank is not frozen. During the Discharge (cooling) Period, warm return water is circulated through the tank, external to the ice, whereby it is cooled by the melting ice. 4.3.1.2 Internal Me

    11、lt. During the Charge Period, a cold Secondary Coolant or refrigerant is circulated through the coils/plates causing ice to form on the external surfaces. Most of the liquid in the tank is frozen. During the Discharge (cooling) Period, a warm return Secondary Coolant is circulated through the coils/

    12、plates, internal to the ice, and melted. 4.3.2 Encapsulated Ice or Phase Change Material. Thermal Storage Equipment consisting of a tank or vessel densely packed with numerous, relatively small containers in which the storage medium (water-ice or other Phase Change Material such as eutectic salt) is

    13、 encapsulated. During the Charge Period, water or Secondary Coolant, at a temperature below the phase change temperature of the storage media is circulated through the tank/vessel to effect a phase change (freezing) in the storage medium. During the Discharge (cooling) Period, warm return water or S

    14、econdary Coolant is circulated through the tankvessel and cooled as the encapsulated storage media changes phase (melts). 4.3.3 Ice Harvester/Chiller. Thermal Storage Equipment which employs a vertical plate, vertical tube, drum type or other evaporator in conjunction with an evaporating refrigerant

    15、 to produce ice from a thin film of water flowing over the external evaporator surface. Periodically, ice is harvested by passing hot refrigerant gas through the evaporator or passing a scraper over the external surface thereby causing the ice to fall, in flakes or chunks, into a storage tank. Durin

    16、g the Discharge (cooling) Period, warm return water is circulated through the storage 3 Copyright Air-Conditioning and Refrigeration Institute Provided by IHS under license with ARINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AR1 GUIDELINE T - 2002 tank where it

    17、 is cooled by the melting ice. Some Ice Harvesters may also serve as water chillers during the cooling period by circulating the warm return water over the evaporator where it is cooled (with or without making ice) before entering the storage tank. 4.3.4 Ice Slurry. Thermal Storage Equipment wherein

    18、 an ice slurry is produced and stored by circulating a solution from a storage tank through an ice slurry generator. In the slurry generator, an evaporating refrigerant cools the solution, producing discrete ice crystals within the solution, which are returned to and retained within the storage tank

    19、. During the Discharge (cooling) Period, warm return Secondary Coolant is circulated through the storage tank (directly or via the Ice Slurry generator which may at that time be operating as either an ice maker or a chiller) where it is cooled by the melting ice crystals. Section 5. Minimum Informat

    20、ion Recommendations 5.1 User-Specijed Application Recommendations When specifying the application requirements for cool storage equipment, the user should provide, as a minimum, the following data for a design day (or design week, or other design period): a. - b. C. d. e. f. g. 4 Thermal Storage Sys

    21、tem Load, tons kW, for each hour of the design day (referred to as “the Load“ throughout this guideline) Usage of the Thermal Storage Equipment being used during this hour (charge, partial cooling or off) for each hour of the design day Design Heat Sink Rejection Temperature, OF “CI, (information fo

    22、r each hour of the design day is preferred, but not required) Supply temperature to the Load, TI, “F“C, during the hour of maximum load (information for each hour of the day is preferred, but not required) (Figure 1) Return temperature from the Load, Tz. “F“C, during the hour of maximum load (inform

    23、ation for each hour of the day is preferred, but not required) (Figure 1) Flow rate to the Load, gpm Us, during the hour of maximum load Maximum time, h SI, and minimum temperature, “F OC 1, available to charge from fully discharged condition h. Identi the fluid that is flowing to the Load and the f

    24、luid flowing to the storage tanks (e.g., water, 25% ethylene glycol/75% water, etc.) A sample format and example of the user-specified data are provided as Appendices C and D, respectively. 5.2 Supplier-Specified Thermal Performance Data. When specifying the thermal performance of cool storage equip

    25、ment, the supplier should provide, as a minimum, the following data on an hourly basis fora design day (or design week, or other design period): a. b. C. d. e. f. g. h. 1. j. k. 1. Thermal Storage System Load, tons kW Load on Refrigeration Equipment, tons kW Thermal Storage Device Charge or Discharg

    26、e Rate, tons kW Parasitic and accessory heat load (e.g., air compressor, dedicated recirculation pump, etc.) in tons kW into the storage device Ambient Heat Load into the storage device in tons kW based on defined values for: 1. Ambient Air dry-bulb temperature, “F“C 2. Ambient solar conditions (e.g

    27、., shaded, full sun, etc.) Net Storage Inventory, in the storage device, ton- hour kW.h Saturated suction temperature and refrigeration load or other design parameters for the refrigeration plant, when this equipment is to be supplied by other than the thermal storage supplier Temperature of supply

    28、and return Fluid to the Load, TI and T2, “F “CI Flow rate of Fluid to the Load, gpm Us Temperatures of Fluid entering and leaving the Thermal Storage Device, T3 and T4 (Figure i), and any other heat exchanger(s) included in the venders scope of supply, “F “CI Flow rate of Fluid through the Thermal S

    29、torage Device and any heat exchanger) included in the suppliers scope of supply, gpm Us Pressure drop across the Thermal Storage Device and any heat exchanger(s) included in the suppliers scope of supply, psi Wal Copyright Air-Conditioning and Refrigeration Institute Provided by IHS under license wi

    30、th ARINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-m. Energy input to thermal storage refrigeration equipment included in the suppliers scope of supply, kWh kWh (for electric chiller) or kBtu , kWh (for gas-fired chiller) n. Total heat rejection, Btu kW and cond

    31、ensing temperature for the refngeration system if within the suppliers scope of supply. If the heat rejection device is included in the suppliers scope of supply, the temperature, OF “CI (and flow rate, gpm L/s, if applicable) of the heat rejection sink, OF OC - e.g. condenser water supply temperatu

    32、re and .flow rate for water cooled condensers, entering dry-bulb temperature for air-cooled condensers, entering wet-bulb temperature for evaporative condensers, etc. o. Energy input to essential storage device parasitics and accessories, i.e. air compressors or air pumps, kWh Note: It is intended t

    33、hat hour-by-hour changes in Net Storage Inventory track the hour-by-hour effects of Charge Rate, Discharge Rate, parasitic load and Ambient Heat Load. As such, the data should represent a theoretically endlessly repeatable cycle for back-to-back design days, weeks, or whatever basis is chosen for th

    34、e cycle. Additional minimum data to be supplied by the supplier includes: a. Listing of all equipment included in the scope of supply b. Net Usable Storage Capacity, ton-hour kW.h for the Thermal Storage Device(s) c. Time, ,h SI, required to charge from the fully discharged state d. Time, h SI, requ

    35、ired to recharge after discharge on design day (for purposes of this guideline, the design day is to be considered to be the peak day unless otherwise specified by the design engineer) e. Identification of the Charge and Discharge Fluids, including the physical properties if these are not readily av

    36、ailable from conventional sources Also, note that for ice slurry systems it may be necessary to define the Secondary Coolant concentration at a defined point of time within the operating cycle. A sample format and example of the supplier-specified data are provided as Appendices E and F respectively

    37、. 5 Copyright Air-Conditioning and Refrigeration Institute Provided by IHS under license with ARINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AR1 GUIDELINE T - 2002 APPENDIX A. REFERENCES - NORMATIVE None. APPENDIX B. REFERENCES - INFORMATIVE B1 Listed here are

    38、standards, handbooks, and other publications which may provide useful information and background but are not considered essential. B1.l ARI Standard 900-98, Thermal Storage Equipment used for Cooling, 1998, Air-conditioning and Refrigeration Institute, 4100 N. Fairfax Drive, Ste. 200, Arlington, VA

    39、22203, U.S.A. B1.2 ASHRAE Design Guide for Cool Thermal Storage, 1993, American Society of Heating, Refrigerating, and Air-conditioning Engineers, Inc., 1791 Tullie Circle, N.E., Atlanta, GA 30329, U.S.A. B1.3 ASHRAE Handbook - HVAC Applications, Chapter 33, “Thermal Storage“, 1999, American Society

    40、 of Heating, Refrigerating, and Air- conditioning Engineers, Inc., 179 1 Tullie Circle, N.E., Atlanta, GA 30329, U.S.A. B1.4 ASHRAE Practical Guide to Cool Storage Projects, 1995, American Society of Heating, Refrigerating, and Air-conditioning Engineers, Inc., 179 1 Tullie Circle, N.E., Atlanta, GA

    41、 30329, U.S.A. B1.5 ASHRAE Standard 150-2001, Method of Testing the Performance of Cool Storage Systems, 2001, American Society of Heating, Refrigerating, and Air-conditioning Engineers, Inc., 1791 Tullie Circle, N.E., Atlanta, GA 30329, U.S.A. B1.6 ASHRAE Terminology of Heating, Ventilation, Air Co

    42、nditioning, Copyright Air-Conditioning and Refrigeration Institute Provided by IHS under license with ARINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-n 10 Copyright Air-Conditioning and Refrigeration Institute Provided by IHS under license with ARINot for Resale

    43、No reproduction or networking permitted without license from IHS-,-,-ml W I I- w n G: - W i= a E U O u, 2 a I- M I a n eo Y* i I rc e e W 4 3 v) W ml - e E a v) li X O 2 W e e a 03 03 O W O rg e I d YC c d Z? I P O o m 11 Copyright Air-Conditioning and Refrigeration Institute Provided by IHS under license with ARINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-L 12 Copyright Air-Conditioning and Refrigeration Institute Provided by IHS under license with ARINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-


    注意事项

    本文(ARI GUIDELINE T-2002 Specifying the Thermal Performance of Cool Storage Equipment《冷却存储设备热处理规范》.pdf)为本站会员(sofeeling205)主动上传,麦多课文档分享仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。 若此文所含内容侵犯了您的版权或隐私,请立即通知麦多课文档分享(点击联系客服),我们立即给予删除!




    关于我们 - 网站声明 - 网站地图 - 资源地图 - 友情链接 - 网站客服 - 联系我们

    copyright@ 2008-2019 麦多课文库(www.mydoc123.com)网站版权所有
    备案/许可证编号:苏ICP备17064731号-1 

    收起
    展开