1、COPYRIGHT American Society of Heating, Refrigerating and AC EngineersLicensed by Information Handling ServicesThats easy. Johnson Controls electric actuators have a full 3-year warranry. The best in the business. And with the Johnson Controls M9000 series, you really do get what you deserve-an actua
2、tor worthy of your trust. Our sophis- ticated robotics manufacturing cell in Watertown, Wisconsin, results in zero defects = ulln IN UBn in our Mg000 series of direct mount electric actuators. We offer compatible dampers and valves, too, making Johnson Controls your single source for all WAC needs.
3、Because no matter what your application, our built-to- order dc means y always gc exact acti :sign oull :t the utor you need. And with our just-in- time manufacturing, you get it shipped in three days. For critical jobs, ask for next-day Fast Track service. At Johnson Controls, we guarantee your com
4、plete satisfaction, because we make actuators right-right away. Call 1-414-274-5852 to see how quickly we can make you smile. J “SON CONTR 8 LS www )ohnsoncunrrolr com (Circle No. 1 on Reader Servlce Card) COPYRIGHT American Society of Heating, Refrigerating and AC EngineersLicensed by Information H
5、andling Servicesis Almost as ImDortant as L Rovancoi“ a leading manufacturer of rigid, pre-insulated piping systems, recently Recognized One Of Those Great Ideas“ when it discovered Ecoflex piping manufactured by Uponor After recog- nizing it, Rovanco explored Ecoflexs long and successful history I
6、Ecoflex is a flexible. pre-insulated plastic piping system Just this brief description points out the immediate, yet overlooked until now, benefits of this remarkable product Unlike rigid piping systems, Ecoflex is flexible, thus capable of transcending corners and underqround obstacles It can also
7、accommodate expansion I Recognizing a Great Idea Coming Up With I J NJ Rovanco has long maintained a leadership position within the industry by continually providing quality products and progressive RI reg steretl tradeind k of Motorold liic www nextel com COPYRIGHT American Society of Heating, Refr
8、igerating and AC EngineersLicensed by Information Handling ServicesPage 9: Reports on Mostra Convegno Page 30: Ventilation Roundtable . What Engineers Want in a Ventilation Standard Improved Fi It ra tio n in Residentia I Environ men ts 30 By H. E. Barney Burroughs and Kevin E. Kinzer 47 Efficiency
9、through Design Integration . By Giuliano Jodesco . 52 Critical Supermarket Issues . By Mukesh Khattar, Ph.D., PE. 57 Commentary 7 Industry News Meetings and Shows . . Focus on Filters 60 Products 63 . Standards . 64 Literature 65 Classified Advertising . 66 Advertising Index 72 Reader Service Card F
10、ront e”o%Paa Former ASHRAE art director lawrence H. (Larry) Darrow, Affiliate ASHRAE, created the front cover painting that depicts a one-inch filter cleaning the air. The article “Improved Filtration in Residential Environments” discusses filter efficiency on Page 47. JUNE 1998 VOLUME 40 NUMBER 6 C
11、OPYRIGHT American Society of Heating, Refrigerating and AC EngineersLicensed by Information Handling Services STD-ASHRAE JOURN Y1-b WEW-ENGL 1998 0757b50 0535599 Yb3 didm ts like never before! The unique upriglit design of our dnalilnn vertical in-lines now combines the performance advantages of two
12、 pumps in a single casing - to offer you extra- ordmq value and savings UI requires up to 8 fitries lcss mtdianical ioom space than con1 entional To learn more nbutit ArmstrwiX Products, Arm.;tr.)iig:.r Service and Arnistiotigesr Qualit), call your local Armstrong Representative (Circle No. 7 on Rea
13、der Service Card) COPYRIGHT American Society of Heating, Refrigerating and AC EngineersLicensed by Information Handling ServicesRN in-b WEW-ENGL 1778 W 0757b5 0535b00 Li05 m sk engineers what they want in a ventilation standard and youll get surpris- ingly similar answers: simplicity, flexibility an
14、d technical accuracy. But can a ventilation standard fulfill these objectives and still meet the needs of design- ers, building operators and code officials? This is one of the central issues debated during an ASHRAE Journal roundtable that involved key members of the committee revising Standard 62,
15、 experienced engi- neers and building operations professionals. The purpose of the event was to provide a forum for different points of view within ASHRAE. The dialogue, which starts on Page 30, also provides perspective on some of the fundamental issues that have complicated revision of ANSIIASHRAE
16、 Standard 62-1989, Ventilation ,for Accept- able Indoor Air Quality. THE U.S. Department of Education and General Accounting Office estimates that 6,000 new schools will be needed over the next decade to accommodate three million more students. In addition, many of the 80.000 existing schools are mo
17、re than 50 years old and need extensive renovation. Its against this backdrop that ASHRAE Journal decided to develop the Practical Guide to HVAC for Schools, a supplement to this issue. The articles are written by practicing professionals with ample experience in their respective topics. The supplem
18、ent editor is Ken Elovitz, P.E., Member ASHRAE, who also edited the Journals two previous practical guides: Practical Guide to Motors and Drives, and Practical Guide to Building Controls. The Journals fourth Practical Guide, planned for November, will cover museums and monumental spaces. LAWRENCE H.
19、 (Larry) Darrow retired in 1995 after 19 years as ASHRAEs art director, but hes still contributing. Darrow provided the cover for this edition, as well as the abstract painting of the sound laboratory on the cover of Februarys edition. The work illustrates an article by Presidential Member H.E. Barn
20、ey Burroughs, Fellow ASHRAE, and Kevin E. Kinzer. The article describes a study of filter efficiency that uses a new test method, ASHRAE Standard 52.2P. The test establishes the mini- mum efficiency of particulate filters over a range of 12 size fractions, from 0.3 to 10 microns, over the full loadi
21、ng cycle of the filter. Also this month: Guiliano Todesco, P.E., Member ASHRAE, quantifies the benefits of mechanical and architectural optimization in Eficiency Through Design Integration. Mukesh K. Khattar, Ph.D., P.E., Member ASHRAE, describes possible solutions to refrigerant-related challenges
22、in the supermarket industry in Critical Supermarket Issues. The project won a 1998 ASHRAE Technology Award. Have a great month. June 1998 COPYRIGHT American Society of Heating, Refrigerating and AC EngineersLicensed by Information Handling ServicesCOPYRIGHT American Society of Heating, Refrigerating
23、 and AC EngineersLicensed by Information Handling ServicesExterior (L) and interior views of exhibition center at Milan fairground. The show covered 1,722,300 fi2 (i60 O00 m) of exhibit space, a J 6% increase over the i 996 show. Mostra Convegno Sets Record Nearly 3,000 Firms Attend Italys Prem ie r
24、 Exh i b ition By Roy S. Smith MILAN, Italy-Mostra Convegno Expo (MCE) is one of the worlds most impor- tant building service shows. In addition to meeting customers and making new contacts, the show affords the opportu- nity to study a vast range of equipment from nearly 3,000 firms and to attend c
25、on- ferences addressing a wide range of cur- rent industry topics. Strong Representation This years show, the 31st edition, dem- onstrated visible signs of recovery for the Italian building industry, with 1998 pro- duction forecast to reach 233,969 billion Lire ($133 billion), as compared to approxi
26、- mately 222,086 billion Lire ($126 billion) in 1997. However, the Italian market re- mains far from buoyant since more than 59% of work consists of renovation and maintenance. A downturn in the market usually re- sults in iridustry marketing budget cuts, which means fewer exhibitors. But this was n
27、ot the case in Italy-on the con- trary, more companies than ever attended this years show (see sidebar). With 1 I6 exhibitors, American firms represented the second largest contin- gent. Those noted included Baltimore Aircoil, Carrier and its Italian subsidiary Delchi, Copeland, Honeywell, Lennox, M
28、cQuay, Ranco, Reznor, Ridge Tool, Selkirk, Trane, White Rogers and York, which also exhibited with aEuropean sub- sidiary. Many other US. companies were seen on the stands of distributors, among them Armstrong Machine Works, Barry Blower, Chicago Blower, Dri-Steem, Dwyer Instruments and Little Giant
29、. Following its initiation at the 1996 event, Servitis, the heating and plumbing services “show within a show” returned to this years Expocomfort. Promoted by trade association AMIC, the Servitis venue featured 27 exhibitors that mainly offer services such as management, soft- ware design, publishin
30、g, corporate consultancy, franchising, approvals and professional training. While the statistics of this show are impressive, it must be kept in mind that MCE covers a much wider product range than, for example, the International Air- conditioning, Heating, Refrigerating Expo (AHR Expo). Not only we
31、re HVAC a very economical price in a high quality, made in America unit. Patented Mueller Steam Specialty A Unifed Dominion Company ECONOMICAL FLOW CONTROL SOLUTIONS WORLDWIDE .1491N.C.HwyZOW. .St Pauls,NC 28384 *Tel 910-865-8241 *Fax.910-865-8245 * http:/www industrj neimueller steam - e-mail muell
32、er Fluid Conlml Olvisron _ (Circle No. 12 on Reader Service Card) 14 ASHRAE Journal June 1998 COPYRIGHT American Society of Heating, Refrigerating and AC EngineersLicensed by Information Handling ServicesCOPYRIGHT American Society of Heating, Refrigerating and AC EngineersLicensed by Information Ha
33、ndling Servicesithout proper humidification, you can run into all kinds of problems: dry air, unhealthy employees, unacceptable yields, reduced productivity, static electricity-the list can go on and on. Fortunately, theres a solution thats really quite simple: DRI-STEEM. Gq ec- Ask about our new UL
34、TRA-FOP-The latest advancement in ultra-sonic togging systems for demanding envlronmentsl If youre looking for innovative products that provide consistent control with virtually no maintenance, raise your hand. One of our local experts will be glad to WePe at the head of our class. 14949 Technology
35、Drive, Eden Prairie, MN 55344 Phone: (612) 949-2415 Fax: (612) 949-2933 E-mail: Internet address: 1-800-387-8336 Europe Office: Bell Place, Bell Lane, Syresham, Brackley “13 5HP, U.K. Phone: +44 1280 850122 Fax: +44 1280 850124 E-mail: COPYRIGHT American Society of Heating, Refrigerating and AC E
36、ngineersLicensed by Information Handling ServicesCertificat ion Differs in U.S., Europe MILAN, Italy-Mark Menzer, Member ASHRAE, addressed ASHRAE Italian members about the differences of air-con- ditioner certification programs in Europe and the United States. Certification pro- grams are adminis- t
37、ered in Europe by Eurovent and in the U.S. by the Air- Conditiong and Re- frigeration Institute (ARI), said Menzer, Mark Menzer ARIs vice president of engineering and research. There are a number of differences between the two programs. Equipment, he said, is tested and cer- tified to Eurovent in ac
38、cordance with IS0 Standard 5 15 1 using the calorimeter method or in accordance with Eurovent 616 using the air enthalpy method. AR1 certification programs are certified to AR1 Standards 2101240 and 3401360. The dif- ferent standards specify different rating conditions and tolerances for testing. Eu
39、rovent certifies equipment for both comfort cooling and process cooling, whereas ARIs certification only applies to comfort cooling. One major difference between Europe and the US. is that sea- sonal performances are certified in the U.S. and not in Europe. The US. certifies sea- sonal performance i
40、n terms of Seasonal En- ergy Efficiency Ratio (SEER) for cooling and Heating Seasonal Performance Factor (HSPF) for heating. Part load performances are certified in the U.S. for equipment above 135,000 Btu/h (39 568 W) in terms of Integrated Part Load Value (IPLV). AC equipment in Europe can be cert
41、i- fied under one of three certification pro- grams: AC1 (up to 12 kW), AC2 (between 12 kW and 45 kW), and AC3 (between 45 kW to 1 00 kW). AR1 administers two cer- tification programs: Unitary Small (up to 65,000 Btu/h 19 051 W) and Unitary Large (between 65,000 Btuh and 250,000 Btu/hl9051 Wand73275
42、 W). June 1998 ILTo Filtration System Self-Cleaning 0 Ready to Install 0 Automatic Backwash Corrosion Resistant All Steel Construction 0 Solid State Electronic 0 High Capcicity Controls 3167 Progress Circle Mira Loma, CA 91752 VE R FI LT, “The Filtration People” Fax: (9091 360-8384 Visit our Web sit
43、e at: http:leverfilt (Circle No. 15 on Reader Service Card) DONT DESIGN AN AIR HANDLING SYSTEM WITHOUT OUR FREE GUIDE. Youve got thousands of options and questions when planning a new or retrofitted air handling system. Weve got free answers to make the job easier, including a checklist of design co
44、nsiderations. Our 16-page Air Handling Guide tackles such topics as cost, energy efficiency, materials of construction, component options and air quality. All usefiil information from the experts. Call us at (330) 794-9770 for a free copy, or use the reader service card. -_- AIR ENTERPRISES Air Ente
45、rprises, Inc. 735 Glaser Parkway Akron, OH 44306 (Circle No. 16 on Reader Service Card) ASHRAE Journal 17 COPYRIGHT American Society of Heating, Refrigerating and AC EngineersLicensed by Information Handling ServicesSTD-ASHRAE JOURN 40-b WEW-ENGL 1998 I 0757b50 0535bll 290 m Shades of Green Is There
46、 a Uniquely European Way To Design Building Comfort Systems? MILAN, Italy-Is there a uniquely Euro- pean way to design comfort systems for buildings? Have cultural, economic, so- cia1 and regulatory forces influenced the European designer in ways different than his North American counterpart? Has in
47、- ternational dialogue on climate change and ozone depletion unified the global practice of HVAC or has it fostered re- met to hear Society President Donald E. Holte, P.Eng.,Fellow ASHRAE, andMario Costantino, former president of the Ital- ian HVAC association AiCARR, discuss the state of HVAC desig
48、n. HOlfeS View The past 100 years has been a century of brawn over brain. No matter what the gional approaches? Are the HVAC design profession and the manufacturing indus- try LIP to the challenge of meeting de- mand for comfort and compliance with eiivironmcntal legislation balance in the next mill
49、enium? During Mostra Convegno Expocomfort, Italian ASHRAE members architect dreamed up, we said we would build a machine and system to beat the building into submission. We had an abundance of low-cost energy and did not care about how much we used or the impact on the environment. This must stop! It is our responsibility to ensure a clean environment and an ad- ASHRAE President Donald E. Holte, REng., says we must use technology to mak
