Tài liệu Embedded Systems Design ppt

... that embedded systems typically involve complex relationships among many inputs and various outputs, statecharts are an important embedded systems design tool for both hardware and software designers. ... of the design goal of three pages per minute. If an embedded system is using an operating system at all, it is most likely using an RTOS Like embedded processors, embed...

Ngày tải lên: 13/12/2013, 11:15

... value of the final report will re- late strongly to the clarity of this definition. Source: HVAC Systems Design Handbook Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com) Copyright ... 439 Chapter 15 Technical Report Writing 15.1 Introduction An HVAC designer is almost certain to be faced with the need to write reports. The ability to produce an ....

Ngày tải lên: 15/12/2013, 03:15

... the top of a hill has potential energy with respect to the bottom of the hill. Source: HVAC Systems Design Handbook Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com) Copyright ... energy input becomes a benefit. Q ϩ Q evap in COP ϭϭCOP ϩ 1 heat cool Q in In heat pump systems, the system designer should again try to work with the smallest possibl...

Ngày tải lên: 15/12/2013, 03:15

... locale. Designers must understand a great deal beyond ba- sic HVAC system design and the outdoor climate. They must also un- derstand the process or the comfort requirements. In addition, designers ... use of carefully designed HVAC systems and very high-quality control devices. Clean rooms often require high airflow rates but have normal or low heating and cooling loads. One design solu...

Ngày tải lên: 26/01/2014, 14:20

... into account the actual design ambient drybulb or wetbulb conditions when designing a chiller plant. If the location is arid, then lower the wetbulb design as per ASHRAE design weather data and ... Wetbulb Water-cooled chiller systems usually out perform air cooled chiller systems. However, when considering life cycle analysis, the payback for water-cooled systems can be very long...

Ngày tải lên: 11/12/2013, 18:15

... CMSC 104, Version 9/01 1 Top-Down Design Topics • Top-Down Design • Top-Down Design Examples • The Function Concept Reading • Sections 3.9, 3.10 CMSC 104, ... sending in Location 2 Call Draw a Window, sending in Location 3 CMSC 104, Version 9/01 2 Top-Down Design • If we look at a problem as a whole, it may seem impossible to solve because it is so complex. ... computation program o...

Ngày tải lên: 13/12/2013, 22:15

... 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 open systems. Static ... aspect of HVAC sys- tems design. Pumps, fans, coils, heat exchangers, refrigeration sys- tems, process systems, boilers, deaerators, water softeners and treat- ment systems, water su...

Ngày tải lên: 15/12/2013, 03:15

... is used, or for absolute temperatures the Rankine (ЊR) scale: ЊR ϭ ЊF ϩ 460Њ. Source: HVAC Systems Design Handbook Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com) Copyright ... Terms of Use as given at the website. Engineering Fundamentals: Part 3 461 ‘‘guarded hot box,’’ designed so that heat transfer through the edges of the material is esse...

Ngày tải lên: 15/12/2013, 03:15

... water it can hold at a specified temperature and pressure. The properties of moist Source: HVAC Systems Design Handbook Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com) Copyright ... very brief. The subject is very important to the HVAC designer, and further study of Ref. 1 and other sources is recommended. Every set of HVAC design calculation...

Ngày tải lên: 15/12/2013, 03:15