... S.J. A transient 2-D finite volume model for the simulation of vertical U-tube ground heat exchangers. ASHRAE Transactions. 1999, 105(2) 46 5-4 74. [9] Fluent User’s guide volume 1-5 , Fluent Inc. ... study: heat transport in groundwater filled borehole heat exchangers. Resent publications: Gustafsson, A-M ; Westerlund, L ; Hellström, G. CFD-modelling of natural convection in a...
Ngày tải lên: 05/09/2013, 14:58
... chuẩn TEMA • L - Giống đầu thiết bị loại A • M - Giống đầu thiết bị loại B • N - Giống đầu thiết bị loại N • P - Outside packed floating head • S - Floating head with backing device • T - Pull through ... thiết bị theo tiêu chuẩn TEMA: • A - Nắp và thân của đầu tháo lắp được • B - Đầu cố định • C - Nắp và ống tháo lắp được, thân của đầu không tháo lắp đ...
Ngày tải lên: 15/01/2014, 17:25
Tài liệu HEAT EXCHANGERS, VAPORIZERS, CONDENSERS ppt
... Values for Overall Heat Transfer Coefficient of Shell and Tube Heat Exchangers (Including Allowance for Fouling) Fluids Water-water Oil-water Oil-oil Gas-oil Gas-water Gas-gas U 0 Btu/hr ... psig Condensation Steam, 0-2 0 psig Ammonia Light hydrocarbons Refrigerant 12 Mixed hydrocarbons, steam, and noncondensables U 0 Btu/hr • ft 2 • 0 F 10 5-1 20 7 5-9 5 2 0-3...
Ngày tải lên: 27/01/2014, 16:20
Rating Heat Exchangers docx
... ____________________________________________________________________ Rating Heat Exchangers 1 1 Rating Heat Exchangers © 2004 AspenTech - All Rights Reserved. 11 Rating Heat Exchangers EA1000.32.02 2 Rating Heat Exchangers 2 Workshop A heat exchanger is ... simple Heat Exchangers • understand the principles of Heat Exchanger design Process Overview 4 Rating Heat Exchan...
Ngày tải lên: 23/03/2014, 02:20
advances in thermal design of heat exchangers a numerical approach direct-sizing, step-wise rating, and transients
... exchangers helical-tube, multi-start coil exchangers platen-type heat exchangers RODbaffle shell-and-tube exchangers lamella heat exchangers flattened and helically twisted tubes printed-circuit heat exchangers HELIXCHANGERs As ... I Index Fundamentals Steady-state temperature profiles Direct-sizing of plate-fin exchangers Direct-sizing of helical-tube exchangers Direct-si...
Ngày tải lên: 02/04/2014, 15:14
compact heat exchangers selection design and operation
... steel/titanium heat exchanger Tube-fin heat exchangers Diffusion bonded heat exchangers The printed circuit heat exchanger (PCHE) Welded plate heat exchangers Plate and Frame Heat Exchangers ... Frame Heat Exchangers (PHE) Brazed Plate Heat Exchangers Welded Plate Heat Exchanger (PHE types) Other specialised PHE types The Plate and Shell Heat Exchanger (PS...
Ngày tải lên: 02/04/2014, 15:23
fouling of heat exchangers, elsevier (1995
... i.e. ( ~- r~) + (~ - ~)+(~ - ~) + (r, - ~)+(~ - ~) or TI-T 6 .'.q- T~-T6 (2.6) ev 10 Fouling of Heat Exchangers If the heat exchange area required for the required heat transfer is ... the metal For steady state conditions the heat flux q q= T2-T3= T3-T4= T4-T5 (2.2) Also q= a,( ~- g) = a,( ~- ~) (2.3) where a~ and tz 2 are the heat tra...
Ngày tải lên: 02/04/2014, 15:23
fundamentals of heat exchanger design
... length for fluid 1 of a two-fluid heat exchanger, m, ft L 2 flow (core) length for fluid 2 of a two-fluid heat exchanger, m, ft L 3 noflow height (stack height) of a two-fluid heat exchanger, m, ft L q Le ´ veˆ ... 599 9 Heat Exchanger Design Procedures 601 9.1 Fluid Mean Temperatures 601 9.1.1 Heat Exchangers with C * % 0 603 9.1.2 Counterflow and Crossflow Heat Exchangers 604 9.1.3...
Ngày tải lên: 02/04/2014, 15:24
handbook for heat exchangers and tube banks design
... 118 B.3 Heat Exchangers . . . 121 B.3.1 Heat Exchangers with Two Passages of Internal Fluid(Fig.2.5) 121 B.3.2 Heat Exchangers with Three Passages of Internal Fluid(Fig.2.6) 137 B.3.3 Heat Exchangers ... 10.1007/97 8-3 -6 4 2-1 330 9-1 _1, C Springer-Verlag Berlin Heidelberg 2010 2 1 Introduction to Computation In (1.2) α and α are the heat transfer coefficients of the...
Ngày tải lên: 02/04/2014, 15:24