fouling of heat exchangers, elsevier (1995

... (2.6) ev 10 Fouling of Heat Exchangers If the heat exchange area required for the required heat transfer is A, then the rate of heat transfer Q ev (2.7) In general the design of heat exchangers ... problem of surface fouling in heat exchangers. A review [Somerscales 1988] that traces the history of heat exchanger fouling suggests four epochs in the devel...

Ngày tải lên: 02/04/2014, 15:23

... equations balance of mass hot fluid balance of linear momentum balance of energy solid wall — balance of energy balance of energy cold fluid balance of linear momentum balance of mass FINITE-DIFFERENCE ... Smith is a Fellow of both the Institution of Mechanical Engineers and of the American Society of Mechanical Engineers, and is also a Member of...

Ngày tải lên: 02/04/2014, 15:14

... An examination of most mass and heat transfer courses shows that the majority of the time is devoted to heat transfer and, in particular, conductive heat transfer in solids. This often leads to ... draws on Parts I and II toillustrate the design of mass contactors and heat exchangers. Part I of this text is devoted to the analysis of reactors, heat exchangers, and mass c...

Ngày tải lên: 02/04/2014, 15:52

Ngày tải lên: 08/08/2012, 17:20

... However, it can be expressed in terms of mathematical equations by modeling of the process. The present paper introduces a method of modeling the process of heat and mass transfer in the space ... Modeling of heat and mass transfer in chicken egg incubators Nguyễn Văn Đờng 1 SUMMARY The relationships between temperature and humidity of the airflow, temperature and water...

Ngày tải lên: 28/08/2013, 08:31

... carried out to study the effect of a gap in the inclined rib on the heat transfer and fluid flow characteristics of heated surface. A rectangular duct of aspect ratio of 5.83 has been used to conduct ... highest value of turbulent intensity is observed at the relative gap width of 1.0 which is in the line of heat transfer measurements. These results of PIV showed good...

Ngày tải lên: 05/09/2013, 16:10

... Discussion 3.1 Comparisons of Heat Pump and Electrical Furnace Heating Comparisons of two methods of heating (heat pump and electrical furnace) are conducted for a number of homes in this study ... the conventional end-uses of heating, cooling and water heating [7]. The present work focuses on determining the efficacy of using heat pumps as the main source of heating in...

Ngày tải lên: 05/09/2013, 16:10

... sheet 4. Sơ đồ thuật toán Tài liệu tham khảo • Carl R. Branan - Rules of Thumb for Chemical Engineers (Third Edition), Gulf Professional Publishing. • Ernest E. Ludwig - APPLIED PROCESS DESIGN ... DESIGN FOR CHEMICAL AND PETROCHEMICAL PLANTS (Volume 3, Third Edition), Gulf Professional Publishing. • T.Kuppan – Heat exchanger design handbook, Marcei Dekker INC. • Nhiều tác giả - Sổ tay...

Ngày tải lên: 15/01/2014, 17:25

... criteria of system pressure, pressure drop, temperature, fouling tendency of the coolant, fouling tendency of the vapor, corro- siveness of the vapor, and freezing potential of the ... by assignment of fouling factors, which are additional heat- transfer resistances, Eq. (52.7). The fouling factors are assigned for the purpose of oversizing...

Ngày tải lên: 27/01/2014, 16:20

... and fragmentation of their nuclei. The percentage of apoptotic cells was calculated as the number of apoptotic cells divided by the total number of cells counted. A minimum of 500 cells were ... Sayen MR, Yellon DM & Dillmann WH (1995) Overexpression of the rat inducible 70-kD heat stress protein in a transgenic mouse increases the resistance of the heart to ischemic in...

Ngày tải lên: 16/02/2014, 09:20