» Từ khóa: Heat Transfer

The heat transfer characteristics of a microtube evaporator use refrigerant R134a were studied experimentally. This evaporator was made from copper tubes and aluminum foils with overall dimensions (L*W*H) of 259.3*43*200mm. The evaporator has 10 passes, each pass including 8 copper pipes (with hydraulic diameter of 0.82mm) and 83 aluminum foils (with the thickness of 0.3 mm); the distance between the two foils is 2.6 mm

 8 p hcmute 23/05/2019 401 2 Download

Từ khóa: Experimental Study, Heat Transfer, R134a, MultiMicro Tubes, Evaporator.

In this paper, the effects of mass flow rate and temperature on innovative cooling system of a motorcycle using rectangular minichannel heat exchanger were investigated by simulation and experiment. The size of the minichannel heat exchanger is reduced by 20%, made it easier to manufacture, and cut down its cost by approximately 40% compared to the original cooling system.

 8 p hcmute 16/05/2018 486 1 Download

Từ khóa: cooling system, minichannel heat exchanger, heat transfer simulation, laminar flow, thermostat

The investigation presented a numerical simulation on heat transfer behaviors in microchannel evaporator of a CO2 air conditioning system. The conditions for numerical simulation were applied by the experimental data of a CO2 air conditioning cycle. This cycle worked with the cooler pressure of 85 bar, evaporator pressure of 37 bar, and the CO2 flow rate of 5.2 g/s.

 8 p hcmute 16/05/2018 579 1 Download

Từ khóa: Numerical simulation, CO refrigerant, air conditioning system, heat transfer, evaporator

this book introduces thermal engineering using a systems focus, introduces structured problem-solving techniques, and provides applications of interest to all engineers.

 7 p hcmute 22/03/2018 455 2 Download

Từ khóa: Introduction to Thermal Systems Engineering: Thermodynamics, Fluid Mechanics, and Heat Transfer

Presents introductory material appropriate for a first course in heat transfer. This edition features design-oriented problems and a greater emphasis on the computer, with more material on how to establish computational algorithms. The IBM diskette accompanying the book can be used to help resolve the design-oriented problems...

 7 p hcmute 20/03/2018 280 1 Download

Từ khóa: Heat Transfer

Heat transfer analysis is a problem of major significance in a vast range of industrial applications. These extend over the fields of mechanical engineering, aeronautical engineering, chemical engineering and numerous applications in civil and electrical engineering. If one considers the heat conduction equation alone the number of practical problems amenable to solution is extensive. Expansion of the work to include features such as phase...

 5 p hcmute 04/08/2017 599 1 Download

Từ khóa: The Finite Element Method in Heat Transfer Analysis

This paper presented an investigation for heat transfer behaviors of a welded-Aluminum minichannel heat exchanger (MNHE) using experimental method. In this study, the results show that the welding Aluminum method for MNHE is less efficiency than the bonding PMMA method at high mass flow rate of water. For water having the inlet temperature of 62C and mass flow rate of 4.1g/s, the heat transfer rate of the welded- Aluminum MNHE is 118W and...

 8 p hcmute 05/01/2017 459 1 Download

Từ khóa: Temperature, heat transfer, heat exchanger, minichannel, experimental

Trong bài báo này, nâng cấp và xây dựng mới một đường dây thường là tốn kém cho các nhà khai thác mạng. Do đó, chúng ta cần phải đánh giá khả năng mang tải của các đường dây trên không hiện có với các điều kiện khí hậu và môi trường lắp đặt để có thể vận hành đường dây truyền tải và phân phối ở dòng cao hơn so với giới hạn dòng...

 18 p hcmute 27/12/2016 1594 2 Download

Từ khóa: Ampacity, Heat transfer, FEM, ACSR, Overhead lines, Comsol Multiphysics

Bài báo phân tích gia nhiệt và làm nguội bằng nước trong khuôn ép phun một số sản phẩm khác nhau là cần thiết. Kết quả đạt được của bài báo là hoàn thành việc mô phỏng truyền nhiệt trong khuôn ép nhựa sử dụng hệ thống nước để gia nhiệt và làm nguội lòng khuôn. Phương pháp gia nhiệt bằng nước nóng có thể nâng nhiệt độ khuôn từ 30oC đến...

 9 p hcmute 20/12/2016 609 3 Download

Từ khóa: plastic injection molding, water cooling system, heat transfer

In numerical approximate method, for highly exact requirement the ones often mesh space and time very smooth, which common discrete methods spend a lot of time for solving that model. This studying presents a discretization technique, the Proper Generalized Decomposition (PGD), and use its ability to solve the non-linear problem such as heat tranfer and fluid flow. Applying PGD to solve Poisson equation of the two-dimensional incompressible...

 6 p hcmute 15/12/2016 431 1 Download

Từ khóa: Proper Generalized Decomposition, Incompressible fluid flow, Heat transfer

Modern developments in heat transfer/ Warren Ibele . -- New York: Academic, 1963 491p.; 19cm 1. Heat Transfer. 2. Sự truyền nhiệt. I. . Dewey Class no. : 536.2 -- dc 21 Call no. : 536.2 I12 Dữ liệu xếp giá SKN000716 (DHSPKT -- KD -- ) / Warren Ibele . -- New York: Academic, 1963 491p.; 19cm 1. Heat Transfer. 2. Sự truyền nhiệt. I. . Dewey Class no. : 536.2...

 7 p hcmute 12/09/2013 391 1 Download

Từ khóa: Heat Transfer, Sự truyền nhiệt