Where to Buy

CRTech products may be purchased either directly from C&R Technologies or through any of our Worldwide Resellers. Please contact us or a reseller for the current prices and volume pricing on SINDA/FLUINT, Thermal Desktop, RadCAD, FloCAD, TD Direct.

International Headquarters

C&R Technologies, Inc.  Click to request a quote

Location: Boulder, Colorado, USA
Phone: 303-971-0292
Fax: 303-971-0035
Email:

Worldwide Resellers

China

Beijing Hongying United Technology Ltd.
Room 1012, Bld 8, East Asia Shangbei Center,
Changping District, Beijing, China, 102208
Tel: 86-10-80751005
Fax: 86-10-80751005
Click to Email
Web site: www.hongyingtech.com

CnTech Co.,Ltd BeiJing
Room 503, Building A, Intelli-Center, No.18 Zhongguancun East Road,
Haidian District, Beijing, 100083, P.R.China
Phone: +86-10-82601646
Fax: +86-10-82600094
Click to Email
Web site: http://www.CnTech.com.cn

CnTech Co.,Ltd ShangHai
Address: Unit A,11th Floor,Bldg.2,Hua Yuan Mansion,No.3500, 
Kaixuan Road,Shanghai,200030 P.R.China
Phone: +86-21-64391516
Fax: +86-21-64391506
Click to Email
Web site:http://www.CnTech.com.cn

CnTech Co.,Ltd WuHan
Address: Room 2403, Suit A, East valley kenzo, No.727 Luoyu Road,
Hongshan Area, Wuhan, 430074 P.R.China
Phone: +86-27-59838973
Fax: +86-27-59838974
Click to Email
Web site: http://www.CnTech.com.cn

CnTech Co.,Ltd GuangZhou
Room 602,Bldg.1,Xintai Technology Buliding,No. 51-53,Jianzhong Road,
Tianhe Software Park,Guangzhou, 510665,P.R.China 
Phone: +86-20-61139353
Fax: +86-20-61139353
Click to Email
Web site: http://www.CnTech.com.cn

SimuCAD Ltd. Shanghai
Room 503, No. 555 West Nanjing Road, Jing'an District, Shanghai, China, 200041
Phone: +86-21-62157100
Fax: +86-21-62151794
Click to Email
Web site: www.simu-cad.com

Japan

PTI CO., LTD
WinAoyama942, 2-2-15 Minamiaoyama
Minato-ku, Tokyo 107-0062
Japan
Phone: +81-3-6403-3061

Click to Email
Web site: www.ptij.jp

Wave Front Co., Ltd.
Queen's Tower B12
2-3-3 Minatomirai Nishi-ku
Yokohama 220-6112
Japan
Tel :81-45-682-7070
Fax :81-45-682-7071
Click to Email
Web site: www.ablemax.co.kr

Taiwan

HyperINFO Corporation
9F., No.86, Singde Rd., Sanchong City, Taipei County 241, Taiwan
Tel: 886 2 85121686
Fax: 886 2 29958917
Click to Email
Web site: hyperinfo.com.tw

Korea

AbleMax, Inc.
6th Floor Samick Lavied'or building
234, Teheran-ro Gangnam-Ku, Seoul, Korea 
Contact: Jung Hyuk-Park
Tel :82-2-539-5212
Fax :82-2-539-5213
Click to Email
Web site: www.ablemax.co.kr

Europe

Joaquin Capablo
C/ Danzas 2, 3º A
50003 Zaragoza - Spain
Tel: +34 678293988
Click to Email

RexLab
Moosfeldstr. 10c
D - 85238 Petershausen
Germany
Contact: Ingrid Schneider
Tel: +49 0 8137 - 99 8289
Fax: +49 0 8137 - 99 8288
Click to Email
Web site: www.rexlab.de

New Zealand and Australia

Hearne Scientific Software Pty Ltd
Australia
Level 6, 552 Lonsdale Street
Melbourne 3000, Australia
Tel: +61 3 9602 5088
Fax: +61 3 9602 5050
Web site: www.hearne.com.au

New Zealand
Level 7, 44 Anzac Avenue
Auckland, New Zealand
Tel: 64 9 358 0350
Fax: +64 9 358 0325
Web site: www.hearne.com.au

dispersed vs. coalesced front

Tuesday, June 26, 2018, 1-2pm PT, 4-5pm ET

This webinar describes flat-front modeling, including where it is useful and how it works. A flat-front assumption is a specialized two-phase flow method that is particularly useful in the priming (filling or re-filling with liquid) of gas-filled or evacuated lines. It also finds use in simulating the gas purging of liquid-filled lines, and in modeling vertical large-diameter piping.

Prerequisites: It is helpful to have a background in two-phase flow, and to have some previous experience with FloCAD Pipes.

Register here for this webinar

FloCAD model of a loop heat pipe

Since a significant portion of LHPs consists of simple tubing, they are more flexible and easier to integrate into thermal structures than their traditional linear cousins: constant conductance and variable conductance heat pipes (CCHPs, VCHPs). LHPs are also less constrained by orientation and able to transport more power. LHPs have been used successfully in many applications, and have become a proven tool for spacecraft thermal control systems.

However, LHPs are not simple, neither in the details of their evaporator and compensation chamber (CC) structures nor in their surprising range of behaviors. Furthermore, there are uncertainties in their performance that must be treated with safety factors and bracketing methods for design verification.

Fortunately, some of the authors of CRTech fluid analysis tools also happened to have been involved in the early days of LHP technology development, so it is no accident that Thermal Desktop ("TD") and FloCAD have the unique capabilities necessary to model LHPs. Some features are useful at a system level analysis (including preliminary design), and others are necessary to achieve a detailed level of simulation (transients, off-design, condenser gradients).

CRTech is offering a four-part webinar series on LHPs and approaches to modeling them. Each webinar is designed to be attended in the order they were presented. While the first webinar presumes little knowledge of LHPs or their analysis, for the last three webinars you are presumed to have a basic knowledge TD/FloCAD two-phase modeling.

Part 1 provides an overview of LHP operation and unique characteristics
Part 2 introduces system-level modeling of LHPs using TD/FloCAD.
Part 3 covers an important aspect of getting the right answers: back-conduction and core state variability.
Part 4 covers detailed modeling of LHPs in TD/FloCAD such that transient operations such as start-up, gravity assist, and thermostatic control can be simulated.