Dehumidification in HVAC systems
Water and energy sustainable management in irrigation systems network
... water management decision makers in evaluating water policies and developing sustainable water resource management plans WEAP operates following the basic principles of water balance accounting ... regarding supply-demand water allocation interactions and will become invaluable in the assessment of the impacts on water operating rule modifications in order to set...
Increasing energy efficiency of HVAC systems of buildings using phase change material
... 2012, pp.667-686 669 1.4 Phase change material layers The addition of a phase change material (PCM) into the external wall of a building has been shown to reduce the amount of energy required to cool ... Handbook on Low -Energy Buildings and District -Energy Systems: Fundamentals, Techniques and Examples Earthscan, London, 2006 [9] Salyer I O., Sircar A K., A Review...
Security Issues in Wireless Systems
... on the integrity of the system In this case, the attacker not Security Issues in Wireless Systems † † † † † † † † 329 only gains access to the network, but tampers with data such as changing the ... inserting a record in a file Interception This is an attack on the confidentiality of the network such as wiretapping or eavesdropping to capture data in a network Eavesdropping is e...
HVAC Systems Design Handbook part 6
... website Design Procedures: Part Design Procedures: Part 165 Figure 6. 9 shows flow versus head loss (pressure drop per 100 ft) and velocity in schedule 40 steel pipe This is for water at 60 ЊF, but ... the Terms of Use as given at the website Design Procedures: Part Design Procedures: Part TABLE 6. 8 169 Iron and Copper Elbow Equivalents See Table 6. 7 for equivalent length...
HVAC Systems Design Handbook part 8
... the Terms of Use as given at the website Design Procedures: Part Design Procedures: Part 237 Figure 8. 18 Pitot-tube flow sensor V ϭ C͙VP (8. 4) where, for HVAC work, V is in feet per minute and VP ... as given at the website Design Procedures: Part Design Procedures: Part 245 Figure 8. 28 Straight-through (two-way) control valve Control valves A control valve (Fig 8. 28...
HVAC Systems Design Handbook part 7
... at the website Design Procedures: Part Design Procedures: Part 219 Figure 7. 17 Engine driven cogeneration configured flow diagram (P&ID) for the proposed system with subsequent design for each ... The HVAC systems designer will recognize plants as potential areas of specialty experience as assignments and interest allow References ASHRAE Handbook, 2000 HVAC Systems and Equ...
HVAC Systems Design Handbook part 9
... Equipment: Part Equipment: Part 299 Air out Screen Condenser coil Hot gas in Liquid out Air in Figure 9. 11 Air-cooled condenser coil face area, fan airflow rate, desired condensing temperature, and design ... of Use as given at the website Equipment: Part Equipment: Part 3 09 Figure 9. 22 Partial section through a finned coil that area may look good to the designer, but the syst...
HVAC Systems Design Handbook part 10
... at the website Equipment: Part Equipment: Part 355 Figure 10. 29 Psychrometric chart for Fig 10. 28, without heat recovery Figure 10. 30 Psychrometric chart for Fig 10. 28, with heat recovery Downloaded ... given at the website Equipment: Part Equipment: Part 363 Figure 10. 38 Humidifier with radiant heater Ⅲ Airflow rate: 10, 000 ft3 /min with 20 percent outside air Ⅲ At desig...
HVAC Systems Design Handbook part 11
... subject to the Terms of Use as given at the website Equipment: Part Equipment: Part 379 Figure 11. 11 Fan and system curves for Fig 11. 10 If no fan volume control device is used, the fan will nevertheless ... hoods and exhaust systems Laboratory and industrial fume hoods require large exhaust air quantities Several standards cover the design of some types of exhaust systems. 1,2...
HVAC Systems Design Handbook part 12
... Features of HVAC Systems 406 Chapter Twelve UPS systems may be a useful, even required component of a critical HVAC service and will be included in the HVAC and electric system design UPS systems ... The HVAC designer must work closely with the electrical designer to satisfy the needs of both disciplines 12. 13 Summary In building construction, HVAC design is interwoven w...
HVAC Systems Design Handbook part 13
... the Terms of Use as given at the website Design Documentation: Drawings and Specifications Design Documentation: Drawings and Specifications 13. 3.1 413 Drawing size and scale Drawing size and ... product 13. 3.9 Use of computers in drafting The use of computers in design, drafting, and specification writing has proliferated in recent years.2 Computer-aided design and drafting (CADD)...
HVAC Systems Design Handbook part 14
... building and its systems 14. 3.3 Observation of operation Many specifications require the HVAC contractor to certify in writing that the HVAC systems and controls are operating as designed and specified ... than later The designer or reviewer needs to be acquainted with the design intent in this phase of the work 14. 2.3 Work oversight and field review The designer can only expect wh...
Tài liệu HVAC Systems Design Handbook part 15 pptx
... follow the outline of Sec 15. 2, as shown in Fig 15. 3 Figures and tables for each section may be embedded with the related paragraphs or grouped at the end of the section 15. 6 Letter Reports Many ... logo and borders for report pages See Fig 15. 2 There are many binding methods available, ranging from three-ring looseleaf styles to mechanical clip systems to standard bound-book Downlo...
Tài liệu HVAC Systems Design Handbook part 16 pdf
... airside and waterside 16. 6 Summary Fluid mechanics issues show up in nearly every aspect of HVAC systems design Pumps, fans, coils, heat exchangers, refrigeration systems, process systems, boilers, ... piping and duct systems It requires attention to differences in elevation for pumping of ‘‘open’’ systems and teaches us to recognize static-pressure concerns in both closed and o...